Customer Ratings & Reviews

I’ve used 2 other fitness watches for many years, so I was looking forward to trying out a new watch with the latest technology. Initial set up was quick & paired with my Android phone smoothly (be sure to download the App & activate an account prior to set up). Unfortunately, it only comes with a Quick Start Guide. You have to go online to dig up the full manual. Whether you are just a walker, runner or multi-sport athlete, this watch has all the settings that you would need to track your workouts, daily activities & goals. PROS: -The watch is very comfortable & light for all day use. -Battery life is excellent. I only charged it twice in a 7-day period. -Screen is customizable & easy to read. -Heart rate is measured from the wrist/underside of watch. No need for chest heart rate monitor strap! This is my favorite feature. As women know, the HRM strap competes for the same space as the sports bra band. -Excellent App allows endless customization -GPS functions well & acquires satellites quickly -Fully immersible for pool/ocean exercise CONS: -Full product manual needs to come with the watch -Charging cord is too short (~23”) -App loading/updating is very slow BOTTOM LINE: This isn’t for the average Fitbit user that just wants to track steps, HR & calories. For outdoor exercisers & multi-sport athletes, this is a good choice & a good value.

The Epson ProSense 307 GPS Multi-Sport Watch will give you a plethora of workout statistics to help you keep track of your training. It will track seven different types of workout, even differentiating between pool swimming and open water swimming. It has built in GPS, so you can track your workout on a map after the fact. It also has a built in heart rate monitor that can run continuously, even when not working out. The look of the watch is not very impressive. This was definitely designed with workouts in mind, rather than as an everyday fashion accessory. The silicon rubber strap has about a million notches in it so anyone can find the perfect fit. The face is plastic with four plastic buttons to control the menus/settings. The display is black and white, with four options for the style; none of which is very aesthetically pleasing. Unfortunately there is no touchscreen control or rotating bezel control. A color screen with a few more display options would be much appreciated. As someone who wears reading glasses, some of the info on the watch face is hard to see. The end of the watch band tends to come out of the band holder pretty easily which can be annoying. The watch face is very big, like the size of a big men's watch. It would look huge on a typical woman, but again, this isn't a stylish looking watch to begin with, so probably not a big deal if you are just looking for a workout watch. It will fit any wrist size. To access the workout data, you need to use the Epson View app on your phone. The connection between the app and the watch is clumsy and slow. There seems to be a lot of back and forth between pushing buttons on the watch and going through menus on the app to track your workouts. You are supposed to be able to control your music playlist and receive smart notifications about missed calls on the watch, but I couldn't figure out how to do those things. Pros: detailed stats, compatible with several workout apps, heart rate monitor, strap will fit any wrist size (even kids). Cons: the look, lack of touchscreen or rotating bezel control, black and white face, user interface is not intuitive, setup for starting a workout is too slow.

Epson - ProSense 307 GPS Heart Rate Monitor Multisport Watch Included- the Prosense 307, USB charging clip, and manual. There is a free Epson View mobile app to coordinate conveniently with your watch. The ProSense 307 is designed with a GPS system which can track your distance, steps, pace, heart rate, calories burned and even sleep. It will also let you receive smart notifications and control your music playing on your phone. There are several different workout modes- run, walk, treadmill, bike, pool swim, open water and even triathlon. The face of the watch also has a couple different viewing options to let you customize the look but it would be nice if there were more to choose from. The watch is rather large. I would recommend it to someone who has a larger wrist. I had some discomfort with wearing it during everyday normal use. You have to wear it snug enough for the heart rate and pulse to read, but as you can see in my picture that I don't have enough room between my wrist bone and my hand so the watch would dig into me. I really like the charging clip. It is super easy to attach to the watch. The set up was really easy. This watch is good for those who need a device to help them with their workouts. By having accurate stats, you will be able to see your performance. I've only had a Fitbit Flex in the past, so this Epson 307 has many more features.

I am not a runner or athlete, so for the questions dealing with how awesome this is for training, I'm not the person to ask. However if you want a watch with a long battery to track activity and map long walks monitor sleep and heartrate and not need to be charged every day this is the watch. Also the nice thing is this has a lot of training modes and one of them is Walking. I don't run anymore, a bit to creaky, but I do take walks and tracking them is a great feature I haven't seen elsewhere. Setup with the App was simple and all the settings on the watch can be changed via the app or the watch. It was fairly initiative for me to use the watch and setup what I wanted. Its also nice that its waterproof, I really only take it off once every three days or so when the battery looks around 50% to charge. So I'm very happy with it. They do have some customization options for the watch face and the wrist flick to wake it up and light is nice too. I've been very happy with the operation of watch. It is also very nice they have a PC application, so if you aren't near your phone or it dies I can still get the information off. The app seems fine and I hope in the future they add some more watch faces instead of the default 4, but that is a small gripe, I want more customization. I think Epson is onto something and I look forward to years of use with this watch. Oh and if you have an Android watch, turning notification on also requires you to give the appliacation access to notifications. They have a link right to it, but I missed it when I setup the watch and had to read the manual. Otherwise I love this watch. I hope Epson keeps at it. This is a great watch. From a style standpoint it is a large watch face. My wrist is fairly large, but if you have small wrists might look large, but don't let that keep you from this watch. Only I do wish is that Epson adds an alarm feature that will vibrate when you are in light sleep. Be nice to wake not groggy for a change. Keep it up Epson. Love this device and it is making me want to take more walks. So YAY. Get this watch.

I’ve used this watch for a few days and have done a 5 mile jog with it ( unfortunately, I forgot to start the tracker for the 1st mile.) During my time with it, I’ve found that this is a pretty useful and accurate watch. It’s easy to read in the dark, as I like to run in the early hours, before the sun. It looks great on the wrist. Plus , as the name states, it can go multiple places and track everything you do , pretty much. You wanna swim? Swim. You wanna run , hike, or bike. Have at it. You only have to take it off for charging ( something I’ll get to that later). Which is only every couple days. The battery life is said to last a day on heavy use, but I got two days easily, out of it. I was able to link it to my smartphone without much issue ( you can also connect it to your pc or Mac) to track and upload my data. I do recommend that you connect it to your android or IOS device rather than your pc or Mac. It’s just easier to keep tabs on your progress and info that way, plus we tend to look at our phones a lot more than our computers nowadays anyway, in my opinion. The watch band is very comfortable. I never felt constricted by the design or material. It’s a good looking watch. Rugged and a little stylish. I could see myself rocking this at the next pool party or foam party. It can get wet, I’m just saying. The heart rate sensor is on par with other monitors I’ve used in the past and present. So there’s no complaints there. It’s easy view display is just that ( easy to view), as it has an e-paper style display, much like that of a good e-reader. So there’s no problems viewing it in any lighting or lack thereof. You can set workout goals to give yourself that extra incentive to push yourself harder. I do believe this watch can take whatever you through at it. It tracks your progress for up to 5 days before you should transfer your data to the Epson View app for safe keeping. Now that the kudos are given, let’s talk about the drawbacks. First, this watch is going to run you $250. That’s roughly the cost of a good smartwatch. Many smartwatches on the market can do everything this watch can do and more. As functional as it is, I still have a problem replacing my smartwatch for this. Sure, the battery life is good,but I’ve grown used to charging my watch every night before bed. There are other watches that do it better and have app ecosystems. Maybe in a future update Speaking of battery life, the charging is something of an oddity to me. There’s a clothes pin type charger(with a very small cord and no charging brick) that I felt a little timid on attaching. But I’ll get over that eventually. But I just really wish that cord was a bit longer and maybe a charging brick. ( c’mon! That’s $250 clams I’m shelling out.) The buttons are not that easy to press, even though, they are so massive. No speaker or smart notifications. So with that, I give this 3 out 5. It’s good product , that does what it says, but for the price point, it falls short, as there are far too many other options, better options, out there. I think if it were $50 to $75 less, it would make more um... sense. If you have no use or desire for a smart products and are strictly in it for the purity of the activity, this is your watch. This is a good watch, by all intents and purposes. It has everything you need for a someone into decathalons or just jogging. The price is a bit high, but it will do what it says it will. If that works for you, you’ve got a great watch on your hands...wrist.

The Epson ProSense 307 does just about what all of its competitors are doing. It has integrated heart rate detection (though not as accurate as a HR strap), GPS, activity tracking, sleep tracking, and it doubles as a smartwatch with notifications and music control. It also has VO2max estimate, recovery time and training effect metrics, as well as interval training, workout alerts and waypoint navigation. It's packed with features. The Epson View app for Android and iPhone is surprisingly good for a first attempt and syncs with popular sites like Strava. My only complaint is that the app seems a little slow to open. It takes about 20 seconds to get to the dashboard. Many fitness watches have similar features, but the 307 does have a couple that separate it from the field. The battery life on the 307 is phenomenal, especially when using the GPS. It's rated for 20 hours, which seems pretty accurate from my experience. That's more than double what I was getting on my previous watch. The battery will last close to a month without needing a charge if GPS is not used! That's very impressive and light years ahead of the competition. The screen, while not color, is extrememly visible and sharp, and is as good or better than any watch I've seen. Lastly, the price for what you are getting with the 307 is exceptional. None of its competitors are even close. If you are looking for a fitness watch that is packed with features, has a great screen, phenomenal battery life, and a great price, the ProSense 307 won't disappoint.

This was my first activity tracking watch and I was impressed with its performance. What I was looking for most was for it to be comfortable throughout workouts and to provide data about those workouts in an easy to read manner. This watch accomplished both of those expectations. The fact that you can wear it in water is a huge plus for me, as I love water sports and activities. This watch is not the most stylish activity tracker/GPS so don't expect to win any fashion shows. But if you are just using it for workouts and not a 12 hour a day accessory, then I would not be concerned. The partner App could be a little bit more user friendly but it is functional, provides the data I need about my workouts, and I'm sure it will get updates over time to make it even better. I love how you can toggle the display of the watch from the app itself. Overall, this is a great option for athletes and everyday folks that like to track their activity. The additional features that it has over competing products make it a much better choice.

Large, easy to view display. See picture below. The watch face has many different displays you can choose from. It displays battery life and heart rate which is a nice feature. Comfortable watch strap, but the watch face seems rather large for a woman’s wrist, ideal for a man’s. It charges fairly quickly. Instructions were not very detailed, but the app explains a lot more, however, the app could be easier to navigate. Running, walking, biking, swimming laps, basically you name it and it tracks it.

I've had the Epson ProSense 307 watch for about a week now, and I've had a chance to use it for a variety of workout types. I was really torn on how many stars to give, though. The watch itself is easy to use and the measurements it takes seem very accurate, but the companion Android app is slow, clunky, and counter-intuitive, and that's when it works at all. So far, I've used the watch to measure outdoor runs, treadmill workouts, an indoor/pool swim, and baseline activity as an activity tracker/step counter. When it comes to measurements (to include location, time, distance, stride/stroke frequency, and heart rate), the 307 is very impressive. Outdoors, the GPS locked in under a minute, and my post-run map was an accurate representation of where I had been. In the gym, the distance recorded by the watch was surprisingly similar to that reported by the treadmill. After some time in the pool, the 307 knew how many laps I had gone, when I stopped to rest (too often!), and the distance traveled (I did have to enter the pool length). I've used basic digital watches, smart watches, and my smartphone to track workouts before, and the convenience of having it all on my wrist, on an easy to read screen, with big buttons that work even when wearing gloves, has been fantastic. I also like the way the charging works, using a clip that fits around the side of the watch instead of a cord with a tiny connector to fiddle with. The charging/data clip connects via USB, so you’ll need a charging block or computer with USB port available (I’d imagine most people in the market for this watch probably have that covered). The ability to customize most screens on the watch is very helpful. I got to pick from four main designs for the home screen, one of which has the option to show either Heart Rate, Steps, or Calories under the time. Each workout type has its own display template, and you can pick which data elements go on each one. So if you prefer to see pace instead of distance, or strokes per minute instead of heart rate, have at it. Unfortunately, the only way I’ve found to select these options is using the Epson View App. Speaking of the app… all of the wonderful features of the ProSense 307 make it particularly frustrating how bad the app is. I have a flagship Android device that’s about a year old, with the latest operating system installed. About half the time, the Epson View app doesn’t even get past the initial splash screen. No error message or anything, just the logo on the screen indefinitely. Sometimes the app will load but get stuck at “Updating (43%)” and never recover. I don’t know what it is about 43%, but that seems to be the favorite sticking point. I’ve tried uninstalling and re-installing the app, as well as a few phone restarts, but I struggle to even get to the app home screen about half the time. When the app does work, the controls are counter-intuitive and poorly thought-out. Prime example, I had to select my date of birth by scrolling backward, one month at a time, from the present. Not the end of the world, but annoying for sure. Also, I never know when going from one screen to another within the app will require it to connect to the watch. That takes anywhere from 5 to 15 seconds, and all of the little bits of waiting here and there add up. Maybe I’m being overly demanding, but if Epson can engineer a device the size of a wristwatch that tells me where I am in space/time, when I stood up in the pool to take a rest, and how many steps I take in a day, shouldn’t they be able to make a reliable, responsive, and intuitive app? Maybe iOS users have a better experience, but Android users, lookout (or hope for an updated app soon). Fortunately, Epson has Windows/PC software that can be downloaded from the Epson website, so I’m transmitting workout data to the Epson View platform using that and the USB connector. That, combined with the Epson View website, allows me to get the data I need about my workouts, and only use the App for changing the watch settings (which hopefully I’ll not need to do often). Overall, I appreciate what the watch itself can do. I'm definitely using the data it provides to track my workouts and work to improve my results. For those reasons alone, I think the ProSense 307 is worth serious consideration, especially if you have a little bit of patience. In fact, if not for the disappointing app, this likely would have been a 5-star review. Fortunately, software can be updated, and I’m optimistic Epson will improve the app over time. So now I have to answer the question about recommending this product to a friend. Here's how I arrived at "Yes." Most of my friends will either love the fitness data they get out of the watch, don't tinkering with their tech products, or both. If that sounds like you, then yes, I recommend this product. If you really enjoy slick user interfaces and don't have the patience for Epson to improve the app, maybe this isn't for you.

This is a sportswatch with a GPS heart rate monitor and targeted at athletes and gym-goers. I own an Apple watch and this sports watch was a huge upgrade for me considering the extra functionalities it claims to have and I have huge expectations from this watch. I haven't used it for long enough to explore it's all features but I'm sure it will live up to my expectations. I have known Epson to be a printer manufacturing company, never thought of them getting into the smartwatch business, but here they are. Set up: First of all set up was such a pain. You will spend hours to set it up. Initially, I was trying to set it up through my phone but it wasn't working out (no pun intended). So I gave up and set it up in the watch itself. Then paired it with my phone. Don't forget to download Epson View App on your phone. I put it on charge as soon as I took it out of the box. It is fairly lightweight (less then 2 ounces) which is a plus. Charger: This watch has a greatly improved charger. Many watches I have utilized/seen have a magnetic charger that is either ineffectively built or won't remain on the watch it's charging. This one is a clamp based charger that does a great job of holding the watch. You will literally have to force the charger to remove it from the watch. Battery life: Battery life is very good as compared to my apple watch which hardly lasts for 2 days. Epson claims 20 hours of battery life but that's when you keep using it actively. If you are an intermittent user, it will last much longer, probably a week or so. Charging is also very fast. Mine got fully charged in about 2 hours. Display: Display is also very good and clear. Everything is very easy to read. The feature that I liked the most & which most smartwatches seem to miss is the "raise to wake" feature like the apple watch. You do not have to press any button to check time. Just raise your wrist as you would do on a normal watch and screen will illuminate. Only thing missing is the touch screen functionality but that would have been too much to ask for. One negative thing that I must mention here is the green flashing light at the back of this watch. This is basically a wrist sensor and is very bright which can be quite irritating at night if you wear the watch while sleeping to use the sleep tracker feature. One way around it is to wear the watch tight enough so the light doesn't pass through. Just my 2 cents.

This is my review of the Epson ProSense J307 GPS Running Watch. This is a very nice watch that sits in the middle of a set of running watches released recently by Epson. This watch is certainly worthy of joining the high-priced GPS watches that are on the market today, but with a big difference. The 307 is priced so that the average individual can afford it. With the amount of features this watch offers, it is hard to believe that it is only in the middle of Epson’s lineup. The size of the black watch is pretty standard and the band is a black rubber with holes located so that it should fit just about any wrist comfortably. I have a pretty small wrist so even though it fit snugly, the amount of strap that was pulled through would not stay secured with the loop, so it would stick out about 3 inches. I found myself wishing it had another loop. The display reminds me of my first Kindle and its electronic paper. It has no glare and can be seen from any angle clearly. The watch comes with a charger and a quick start guide together in the box. Mine was fully charged when I opened the box. The charger is unique in that it is a claw-type that grabs the watch and the electrodes that are on the underside of the watch with a shape that the claw fits right into so there is no mistake when it is in the right place to charge. The 307 features optical heart rate so there is no need for a chest strap since it monitors from the back of the watch. There are five buttons on the watch, 3 on the right, and 2 on the left with the bottom one being silver to mark the start/stop function. I find the buttons are difficult to push in since they are spongy, and it is hard to tell when one is fully depressed. The battery life is not as good as the claims are in my experience. When used for activity tracking I would only get 2 days before needing recharged. That is quite a bit of a difference from the advertised 5 to 7 days. The all-new app, Epson View, is very good. Runners can see data on the watch itself or on Epson View which works with iOS, Android, PC and Mac. It tracks, during runs, pace, distance, cadence, steps, heart rate, stride length, calories, laps, training effect, and predicted race performance based off estimated VO2 max. Two stats can be compared at once also. They show on the app as blue and red. All activities auto-upload, and can also upload to 3rd party apps as well. You can also customize the watch face to show certain stats and leave others hidden. The GPS is very accurate and can be taken down to the thousandth place (.000). It is best to start the GPS when outside of any structure so that the satellites can “see” the watch. When using the watch in a new location it can take up to 30 seconds for the GPS to completely connect. To start the watch and GPS you simply push the “start” button and if you don’t want to wait for the GPS to link, it will find satellites as you go. To end a run, you simply push the “stop” button and then the “Enter” button to save the run. Initially I found the watch difficult to use. It can do so many things that I cannot list them all. Many of the things it can do I don’t need so I ignore those things. That does not mean that the watch is something I don’t enjoy having, it means that I don’t need all the info it can generate. So, if you are looking for a watch that is a device that can give you all sorts of information and data regarding your workouts, the Epson ProSense 307 is a great product to consider. I found out that many of the watches on the market that do the things this watch does cost over $1000. That is at least $700 more than the cost of the 307.

Upon opening, I found a nicely sized watch, not too big, not too small. But I will say I felt like this watch has a sort of cheap feel to it. I know it isn't, but it didn't impress me as "solid". The plastic feeling watch band is thin and while it has many size settings, it didn't have one that fit me properly. The keeper slides around a lot, and I find it is often slid out and the excess band is flopping around. I much prefer a magnetic or apple watch sport band closure, vs. this method, because the keepers always break on watch bands like these, if the holes don't rip apart. As for the setup, you download the app, connect the watch to the charger, and then you can do any firmware updates. I went through several updates from when taken out of the box for the first time, and now. These firmware updates didn't change the features, it seems as though they were to fix any reported problems. Okay, that out of the way, there are plenty of great things about this, that for fitness buffs, will come in very handy. The 24 hour rated battery life with GPS on is likely the longest in the industry. I found that the GPS works GREAT! It connects quickly and does that prior to your workout, so that you know it can log where you are, and start to record your travels/progress. Being able to go into the app and see where you were, and the stats with it, is a very powerful feature. The heart rate monitor is accurate as far as I'm concerned because it seemed to mimic closely the Apple Watch and Fitbit Charge 2 ratings for heart rate. You can leave this on all the time as you would with a few other fitness trackers, however this also will show you the heart rate each time you twist your wrist to check the time. I like this feature more than just about all else. Why? I watch my heart rate and want to be able to see what it is without having to press a button, press an icon and wait for a reading, etc. So, I'm sold on just this feature alone. The backlight can be told to come on in different ways, I chose to leave it as default which is to come on when I twist my wrist to check the time. This works very well. The display is black and white, no colors. I understand that this is important due to issues with battery life. In a way, I've become spoiled with color displays and prefer them, however, I'd rather have my watch last longer between charges, which this does. You can change from white background to black background, depening upon your liking. The charger cable is the typical USB type, you'll need your own charger. But it connects firmly to the watch unlike other ones that flip around and fall off. I hate finding after hours of waiting, that the unit wasn't charging because the connector fell off - this won't give you that problem. Stats on this are beyond insanely cool and amazing how many choices there are. If you are into tracking workouts, you need this watch. I'm very impressed with this, and you will be too. It is the strongest point of this watch, other than the heart rate tracker. I wish I got a warm and fuzzy feeling about the "feel" of this watch, in that I wish it felt more substantial. However, many will want the lighter weight so as not to feel that their wrists are carrying more weight than necessary. But I must say I'm impressed with the amount of thought that went into the design and execution of this because in a world full of activity tracker watches, Epson did a great job with this release. Best Buy has a very generous return policy, so if you are unhappy with it, you can simply return it and not lose any sleep over it.

There seems to be a trend lately where companies are pushing products out the door with companion apps that are far from prime time ready. The Epson ProSense 307 is one of those products. While the watch itself is quite nice and has lots of features, accessing and fully utilizing those features requires using the companion app. Unfortunately, that app is clunky, slow, and not intuitive. The ProSense 307 is great for tracking your workouts, runs, walks, swims, and sleep. I found it surprisingly accurate when measuring the distance when compared to the actual distance showed on the treadmill. It even surprises in the pool! Technology is a wonderful thing these days. While there are some customizable options, I would prefer more. This is something that could've easily been added with just a little more effort. Overall, my experience with smart watches/workout trackers has been disappointing. The Epson ProSense has some promise, it has yet to deliver in my opinion. Color display with more options is definitely needed along with a much much needed app update. If you're looking for something basic to track your workouts, then this should serve you well. But with a $250 price tag, that's a lot of dough to drop when there are better products out there for less. Pros: -Features -Basic Design-not too flashy Cons: -Price -Companion App -Lack of customizable options

The initial setup of this unit, the Epson ProSense 307 GPS Heart Rate Monitor Multisport Watch in the color of black, was a breeze to start recording my movements, heartbeat and physical activities. The architecture of the watch's operating system is super easy to navigate, starting an activity is quick and efficient while starting GPS tracking if it's an outdoor activity and not if it's an indoor activity. The specs mention that it has smart notifications, but to successfully make them work I found that you have to leave the Epson View app open on my phone, which consumes battery while maintaining a bluetooth connection with the watch. I have opted to not use it like that. I disable the bluetooth on the watch and only turn it on at the end of the day to retrieve all of my activities data from the watch, this also conserves power so I don't have to charge it every night. To view my activities on the Epson View app is simple and concise. I would love to use it to track my sleep, but it's footprint is just a bit big and uncomfortable, I have yet to last a whole night with it staying on my wrist. I can't wait to use it for some hiking and some bike rides. I would suggest to any of my fitness oriented friends, as a great addition to their workouts, but not as a true smartwatch. It is definitely geared to the fitness tracking realm of things What I like: Easy to use High contrast and Backlit display It's own GPS Easy to sync What I don't like: Smart notification limitations It's pretty big I am using this device with a Google Pixel and only had one failed connection issue when initially setting it up. On the second attempt it synced and has been since.

My first feedback which may not be as important to some people is that this watch is super comfortable. I often forget I'm wearing it unless I need to check the time or start a workout. I actually set it up both on my phone and my PC. I did focus on using the application on my PC and it is very clear and useful. The charger is a one of a kind which I didn't like but it does charge and connect the watch to your PC USB port and the application automatically senses the watch and uploads your workout data. The watch has a very accurate heart rate monitor, I tried to check my heart rate by holding my wrist and with the watch and it was very close. The watch is rugged and band design fits the watch flawlessly. The watch does have GPS to track your workout or you can skip using the GPS in case you are indoors on a treadmill which I also did. The big buttons and simple interface make the watch more useful. It does have many features to track recovery time and many other factors in your workout. I did wear it in the shower and it did not cause any problems. I would highly recommend this watch for people who want more than steps or stairs climbed but want a full array of workout tracking. Finally the screen is viewable at any angle I was very pleased with the clarity also.

I've had a chance to test the Epson Prosense 307 for a little while now and there is great potential here, but it's difficult to recommend it at this juncture. The watch itself is fine. It is all plastic, but the watch face itself appears very sturdy (and has held up to my clumsy workouts pretty well). The band is flimsy plastic, and while it's held up so far I have my doubts as to how well it will continue to hold up. Set up was pretty simple, and was also my first experience with the app. You can set it up with or without the app, but the app was very simple to use---for set up. The face can be customized to a large degree, though the actual "appearance" customization of the main watch (i.e. how everything displays) was limited to just four designs. That is a very small amount in this day and age, and is frustrating as it seems like the watch is capable of more. The actual physical tracking of the watch seems accurate when compared with what the workout equipment I'm using is telling me. The treadmill measurements were extremely close. I also compared distances from the mapmyrun app to measure walks around my neighborhood and they were nearly the same. The GPS appears to be very accurate and showed the same location as my phone in every instance I tested it. I actually tested the watch with a fitbit on my other arm. The odd thing is the heartrate monitor was all over the map with each--sometimes differing as much as 30 bpm! I have no idea which was more accurate or why they would differ so much. My guess is this was more accurate than the fitbit. One thing this watch does better than the fitbit is measure actual steps. On my wrist the fitbit counts other motions (such as cleaning or washing dishes) as steps, and the Epson watch does not, so that's a big plus (unless you're trying to just add up steps I suppose). For a watch whose primary job is to track fitness this is accurate, light, and easy to read. You can also set it to your specific workouts, and there is a very large variety of workouts to choose from. It's compatible with some apps, but not others, so that can be a frustration depending on which apps you're already using. Since fitbit is a brand I'm not surprised it didn't work with that, but it also didn't work with my digital scale app. There are many places online you can find lists of compatible apps so if there is one you love you may want to check the list first. Charging is easy--the clip design is simple and leaves no question about when it's charging. It does appear to be proprietary which means replacing it likely requires a special order from Epson. I prefer cross-compatible chargers with universal plugs, but I'm forgetful and tend to lose chargers very easily. I'm trying to be extra careful, but losing the charger and ordering another means you won't be able to track data for a pretty long time. The charge lasts a good amount of time. Mine had some charge on it out of the box. I fully charged it as recommended, then wore it straight until the charge was completely gone (meaning it was constantly coming on since the face is tied to wrist movement). The first charge lasted roughly four days before requiring recharge. That includes workouts, and constant checking of heart rate, steps, time, etc. The watch also charges fast. From plug in to full charge takes roughly three hours. Since the first charge I have consistently gotten a little more than three days of use before recharge, so I believe that's about the average you can expect, depending on use. The app has a few issues. It can be very slow to update, and seems to get stuck at random times either during an action or, more often, doing an update. It updates very often, and some of the initial issues I had appear to be working better. The app is faster now than it was just a couple of weeks ago. It's not very intuitive so some of the settings can be difficult to figure out. With a watch like this you typically want to see a summary of activities first thing, but there isn't one on the dashboard. Syncing is fast, but like many things on the app is not located on the dashboard (like it should be) so you have to dig a little deeper to find it. The app itself does a lot. You can set goals, track activity over long periods of time, and even track specific types of workouts. It's full featured, but poorly designed and could use a total rework in my opinion. There is also a utility app that you can download from epson's website that will do many of the same things. Overall the watch does what it's designed to do as far as fitness monitoring goes. The app is difficult to use and needs a redesign in my opinion. If that were to happen my review would go to four stars (depending on the final product) but as it is I would only recommend it with reservations at the moment.

Epson View app: Because you need to download the app to set up the watch, I'll deal with it first. The app has a user rating of 2.9, not a good indicator; and the app lives down to that rating. After downloading the app to my phone and tablet., I attempted to set up an account. After entering the required info and hitting the execute button, nothing happened. After several failed attempts on both my phone and my tablet, I quit in frustration. Later in the day, I attempted again with my tablet and was successful. Now, I can access it on my tablet, but I cannot on my phone. The app won't recognize my login via the phone. Both phone and tablet are Galaxy androids, so go figure! Furthermore, the app has the tendency to freeze up on occasion. J-307 watch: The watch is large, yet not heavy. The band is probably stronger than it feels, and had lots of holes, so it should comfortably fit pretty much any wrist size. As a workout watch it has a good solid look and has multiple functions, including GPS. However, the watch face does not show much other than time, date, and HR. The other functions are available by using a variety of push buttons on the sides of the watch. What this amounts to is a lot of button pushing to access your workout information. In addition to the access busy work, you'll need to interact with the quirky app on your phone/tablet. This is presuming it hasn't frozen up on you. Thus, it is unfortunate the watch is not as self-contained as it should be Thus far, it does appear to measure accurately enough. Though, as said, it's a lot of work to get to data. Bottom Line: The watch has good potential, but it gets in its own way due to its lack of ease of use and the quirky app.

So I want to review the watch and not so much the app. The app is clunky and testy. Some times it work and sometimes it doesn't. When Bluetooth connectivity is lost you have to figure out Da Vinci's code to get it working again. 1st time it happened (twice so far) it never would connect then a few hours later I checked it and miraculously it was working again. The app is a program and can be fixed with regular input so I will not be rating the app, also you can do just about everything on the PC and watch face itself. So for once I will list my complaints first. I have a very hard time getting my heart rate to display on the watch, I know I have one so its not me. I have tried all of the listed ways of trying to fix this and it seems to work randomly, maybe I have a faulty watch? Not a major deal for me thought because I have a chest monitor for my equipment and phone. The other issue is the face just randomly changes colors quickly. Meaning if I have it on say analog 1 with a black background it will occasionally flash to the white face and then back to the black again. I can be sitting still, driving, walking, it doesn't seem to matter. if I switch faces or colors it doesn't make a difference. Now the good stuff. My favorite part of the watch is the ability to choose the face style and background that I prefer. The black or white face colors can also be swapped. A flip of the wrist turns the light on, this can be changed in the settings to use a button instead. Each line in the digital displays for working out can be changed to your liking, for example you can display distance, HR and time or change those lines to other options. I forget all the options and actually forgot my watch today or I would double check, but it is a cool feature. Charging is so simple, a provided cord clips onto the edge of the watch, no small plugs to deal with, just squeeze the alligator clip and bam! Buttons aren't too small so that they drive you nuts, even with gloves is easy. Keeping track of my workouts and daily activity is nice, also ties into my workout apps to coexist with each other. The band is comfortable while working out and the watch can sure take the abuse. I like the watch a lot minus the two bugs so far but they haven't kept me from wanting something else or using one of my old fitbits. I am sold and hope it improves. But please fix the app.

I had hoped for more from this watch. During my test, a few big things jumped out at me, some good some not so good. The first thing I noticed was the heart monitor, located on the underneath side of the watch. The instructions suggest wearing the watch snugly (not quoting). I found it to be a bit uncomfortable at first and then I would just get used to it during the day. However, I got annoyed enough to wear the watch looser and would end up having to hold it tight to get an accurate reading. Next, I was hoping the watch would be touch screen or at least more "Smart" watch in nature. It is not; plain and simple. It would have been high tech 5 years ago. The app is all right but lacks compared even to a stock app on your phone. On the other hand, this watch is perfect for the pure enthusiast. It is water resistant to roughly 120'+. Has features to monitor and track ones running, swimming, walking, or anything cardio in nature. Does have the GPS tracking and looks great. I would recommend but only to the right friend I will also add that my favorite feature is the wrist flick to illuminate the display, it is very convenient

This watch is very simple, the displays are either black with white numbers/letters or white with black numbers/letters. The best way to use the watch would be to download the epson app and set up an account. I was able to sync the watch to the app, i was able to access my music and skips song. I haven't used the water feature so i can't see much about it. I used this watch for jogging and cycling. The GPS worked good, but the heart beat monitor wasn't working, for some reason, i couldn't use this option with my workout mode of choice. It wasn't good. I had to exit my workout mode, and check it manually. I did not like that. The watch is bulky, and plain looking compare to what kind of watches are out there. Very functional watch, not a looker, and kind of bulky. I wouldn't recommended it, may be if it was cheaper i would consider it because of all this i will give it 3 stars.