Customer Ratings & Reviews

Great watch for keeping track of multiple sport activities. Good metrics online and in the mobile app! Only draw back is the charging port. The micro USB prong broke on mine, so you have to be careful plugging it in and taking it off the charge cable. Most other GPS watches have cradled chargers, which are less likely to break while giving the device the necessaey juice to track your activities. Great overall watch!

I love this watch for running, but for everyday use it is a bit bulky. Not something to wear at work, but the GPS is fast and accurate. I have taken it on multiple runs, and it is fantastic.

I bought this watch for my son. He is in Med school. I bought it for him to remember that exercise is an important part of his continuing education and well being.

I had it for few weeks. It kinda worked OK, but there were some quirks. Maybe the unit was defective, but it would "forget" the connection to the phone. Or the battery would drain very quickly. Plus lack of notifications (after using Microsoft Band for some time) was inconvenient. But this is just an opinion, not facts. Ended up returning it.

This a really good watch for the price. The watch is rugged, very comfortable to use and packed with features. I wear it all the time even to sleep, I only take it off to shower or to charge it. I have own other brands like the fitbit and garmin and I can honestly say the m400 is better than both since it gives you more for your money and it is better constructed. Over all I'm happy with this product.

Did quite a bit of research on what sport watch to purchase after my Nike was starting to go bad and decided on the Polar. Like that this has an activity tracker as well as GPS. The online stats are as good as Nike and navigating the site might even be better. Don't like no stopwatch feature, so going with a good rating.

Great way to track my daily fitness progress and review my past goals. The GPS on this is amazing!

I love my Polar watch, it keeps me accountable to myself. I am very excited when I reach my daily goal.

It really is hard to find anything negative to say about the Polar - M400 GPS Watch. I use it for bicycle riding and running about 3 times a week and the battery will last 2 months for me before I will have to recharge it. I only wear it during my 30 min workouts every other day and I do not wear it 24/7. The only downside that I can find is that when the battery gets to below 5 percent it will not receive GPS or connect to the heart rate monitor. The other complaint is that the GPS takes longer to connect when the battery is close to 10 percent. But other than that the battery life is awesome and connects to GPS and the Heart Rate monitor very fast. I did tons of research before buying and found that wrist heart rate monitors are not as accurate as chest monitors, that helps with keeping the data as accurate as possible. A heart rate censor and this Polar - M400 GPS Watch can also calculate your VO2 max which can show you how you are progressing with your exercises over time. This is a great watch and would highly recommend it to others.

I like that fact that it gives you distance, speed and heart rate all in one

I have been very satisfied with the Polar M400. I am a runner, logging an average of 20-25 miles a week. The interval training feature is wonderful. The beeps are audible but I wish the watch vibrated as well. The watch is comfortable and easy to read.

Tried 3 watches with wrist pulse sensor. None were reliable - particularly when exercising. The M400 works well under all conditions. Only complaint is - like many computer products - it has too many options which complicates set up procedure.

I wear this on every run and it is easy to read and track my location. Looks stylish and easy to read.

I prefered the option of the apple watch for paying a few more dollars

Best cost/benefit ratio for those that are update your Polar

Great surprise with phone alerts. Durable watch great for any indoor and outdoor activity. GPS signal is great.

Using mine mostly for refereeing soccer (always wondered how much I would run). Countdown timer/activities work great for halves. Also works well to track steps- haven't tracked sleep yet with it.

I bought this watch for my husband who is a fitness nut. He plays hockey, does weight training, and cycles about 250 miles per week. He uses the watch and HR monitor for all of his activities and only needs to charge the watch about every 2 weeks. This is a great product!

Simply awesome The product is amazing and I love the fact I can since with my cellphone.

Started running a few months ago and initially I kept track of distance with my Iphone Nike Run app. This worked well initially but as I got more into running I wanted additional information, like cadence, pace, speed, etc easily readable in my wrist. The Polar watch does this and more well, I wish it had a built in HR monitor and the sync with the app was easier or automatic; but alas, I got it for $150 bucks and a unit with all the bells and whistles I want would run double that amount. So for the price, this watch gives all the running information I need.