Samsung - Galaxy Watch4 Aluminum Smartwatch 44mm BT - Silver
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Condition | Availability | Price |
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Refurbished
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Description
Features
Body Composition Analysis
Get ready to crush your wellness goals with body readings right on your wrist.
Advanced Sleep / Continuous SpO2
Manage your overall sleep quality for a great night's sleep with an advanced tracker that calculates your sleep score.
ECG
Be smart about your heart with ECG Monitoring that gives accurate readings.
Fitness / Auto Workout Tracking
Make the most of every workout with Auto Workout Tracking. Stay motivated by connecting to live coaching sessions via your smartphone or to dynamic Group Challenges with your friends.
V02 Max / Advanced Run Coaching
Make the most out of every mile with Advanced Run Coaching and VO2 max readings to assess your cardio levels.
Extension of Your Phone
Stay in stride while staying connected to calls, text and music on the go.
Upgraded OS (GSuiteApps)
Tap into the power and convenience of select Google services and apps on your wrist.
Sleek and Lightweight Design
Look great while crushing every part of your day with the sleek, lightweight and customizable design.
Group Challenges
Get moving and motivated with your family and friends. Join the fitness fun with activities and challenges designed just for groups.
Trip Detection
Get peace of mind while on the go with Trip Detection that sends an SOS to your emergency contact in the event of a hard fall.
Women’s Health
Galaxy Watch4 helps women build a deeper connection with their bodies and their health by helping to log and track fertility windows, ovulation cycles and periods.
Samsung Health
Samsung Health helps you stay on top of your health, your goals and upcoming fitness needs.
Payments
Tap. Pay. Go. Samsung Pay and Google Pay make quick stops even quicker.
SmartThings
Cool down the house as you cool down from your workout with a tap of your wrist.
Ecosystem
Breeze through your fitness goals by pairing your compatible Galaxy devices and by connecting to your fitness community.
What's Included
Device
Wireless Charger
Quick Start Guide
Key Specs
- Screen Size44 millimeters
- Touch ScreenYes
- Operating System CompatibilityAndroid
- Operating SystemAndroid
- App CompatibleYes
- CarrierUnlocked
- Internal Memory Capacity16 gigabytes
- Global PositioningGLONASS, GPS, Galileo
- Usage Time40 hours
- Metrics MeasuredSteps taken, Duration of sleep stages
- Water ResistantYes
- Maximum Depth of Water Resistance164 feet
- Band MaterialFluoroelastomer
- SeriesBT
General
- Product NameGalaxy Watch4 Aluminum Smartwatch 44mm BT
- BrandSamsung
- Product TypeSmartwatch
- Form FactorWristwatch
- Model FamilySamsung Galaxy Watch4
- Model NumberSM-R870NZSAXAA
- SeriesBT
- ColorSilver
- Color CategorySilver
Design
- Case Size44mm
- Case ShapeRound
- Case Thickness0.39 inches
- Band TypeSport Band
- Band Width0.79 millimeters
- Band ColorSilver
- Clasp TypeBuckle
- Rotating BezelNo
Display
- Display ScreenYes
- Screen Size44 millimeters
- Touch ScreenYes
- Screen Resolution450 x 450
- Display TypeAMOLED
- Color DisplayYes
- Clock DisplayYes
- Backlit DisplayNo
- Adjustable BrightnessYes
- Customizable Watch FacesYes
- Screen MaterialCorning Gorilla Glass DX+
Compatibility
- Operating System CompatibilityAndroid
- Operating SystemAndroid
- App CompatibleYes
- Works WithGoogle Assistant, SmartThings
- Voice Assistant Built-inBixby, Google Assistant
Connectivity
- Data Plan RequiredNo
- CarrierUnlocked
- Internal CarrierNot Applicable
- Bluetooth EnabledYes
- Bluetooth Version5.0
- NFC TechnologyYes
- Wi-Fi CompatibilityWireless A, Wireless B, Wireless G, Wireless N
Features
- Internal Memory Capacity16 gigabytes
- GPS EnabledYes
- Global PositioningGLONASS, GPS, Galileo
- Usage Time40 hours
- Mobile NotificationsYes
- Alert TypeAudible, Vibration, Visual
- Mobile Payment Service SupportedSamsung Pay, Google Pay
- Music PlayerYes
- Silent AlarmYes
- Vibration AlertYes
- Built-In MicrophoneYes
- Voice ActivatedYes
- Languages SupportedEnglish, American Sign Language, Spanish, Chinese (simplified), Tagalog, Vietnamese, Arabic, French, Korean, Other
Activity
- Metrics MeasuredSteps taken, Duration of sleep stages
- Multi-Sport TrackingYes
- SensorsAccelerometer, Barometer, Gyro sensor, Geomagnetic sensor, Ambient light sensor, Optical heart rate (PPG) sensor, Electrical heart rate (ECG) sensor
- Number of Sensors5
- Medical Incident Notification911/EMS, App alert, Contact call, Contact text
Performance
- Water ResistantYes
- Maximum Depth of Water Resistance164 feet
- Shock ResistantYes
- Maximum Height of Shock Resistance4.92 feet
- Dust ResistantYes
- Ingress Protection (IP) RatingIP68
- Minimum Operating Temperature32 degrees fahrenheit
- Maximum Operating Temperature95 degrees fahrenheit
Processor
- Processor Speed1.18 gigahertz
- Central Processing UnitExynos W920 Dual Core 1.18GHz
- Graphics Processing Unit (GPU)Exynos W920
- System Memory (RAM)1.5 gigabytes
Dimensions
- Product Height1.70 inches
- Product Depth0.38 inches
- Product Weight1.0688 ounces
Power
- RechargeableYes
- Battery Strength IndicatorYes
- Battery Capacity361 milliampere hours
- Charging Time110 minutes
- Charging Interface(s)Wireless
- Wireless Charging StandardQi
- Battery TypeLithium-ion
- Replaceable BatteryNo
Material
- Band MaterialFluoroelastomer
- Case MaterialAluminum
- Case Back MaterialAluminum
Camera
- Integrated CameraNo
Dimension
- SizeLarge
- Minimum Wrist Size8.3 millimeters
- Maximum Wrist Size9.1 millimeters
- Band SizeAdjustable, 5-1/8"
- Product Width1.75 inches
Warranty
- Manufacturer's Warranty - Parts1 year
- Manufacturer's Warranty - Labor1 year
Other
- UPC887276552484
Customer reviews
Rating 4.6 out of 5 stars with 2579 reviews
(2,579 customer reviews)Rating by feature
- Battery Life4.3
Rating 4.3 out of 5 stars
- Durability4.6
Rating 4.6 out of 5 stars
- Comfort4.7
Rating 4.7 out of 5 stars
- Pros mentioned:Battery life, Design
Rated 5 out of 5 stars
Wear OS and Tizen is a dream
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This is the first watch to come with Wear 3, the unified platform from Google+Fitbit and Samsung. The goal was to merge Google's large app ecosystem with Samsung's performance and battery life, plus Fitbit's health capabilities. After using this watch for a few days, I can finally say I don't really miss my Apple Watch from when I used iPhone. First off, the design. This watch is light, but feels super premium and holds up well. For an aluminum build, this feels much more expensive then that. It's super smooth and looks well polished. I've taken the watch tubing down a river, dirt road biking, and of course through everyday work life, and the watch doesn't even show a scratch. The performance of this watch is pretty fast. Everything loads WAY faster then my previous Wear 4100 powered Wear 2 watch, and that's even with the pleasing animations of the watch faces and tiles widgets. The only thing that has a notable delay is pulling up Samsung Pay, which even then is around a 0.5 second wait. Battery life is around 2 days when I'm pushing it with GPS tracking and always on workout display, I can get 3 days when not using the GPS. I haven't used a Wear OS watch that's actually lasted more then 24 hours so this was pretty impressive for me, but coming from Tizen watches this might be a little downgrade. Finally, the software. The one downside to previous Samsung Wearables was the lack of apps in the Galaxy Store. The problem with Wear OS was lackluster performance and battery. Imagine a software solution where neither of those is a problem. This is what the new Wear 3 is like. You have full access to the Google Play store from this watch, which has WAYYYY more apps then the Galaxy Store. Then you have a familiar UI that looks just like, and performs just as fast as, Tizen. You also get a fast watch that has good battery life too. I really have zero complaints with this watch. While I have no concerns, there still might be a few things you want to consider, as these might affect you. -Currently, you can't switch Bixby for Google Assistant. Samsung says it's coming soon. In the meantime, Bixby works well enough. -ECG is only available when paired with a Samsung phone. Not a selling point for me, my old Galaxy Watch 3 never actually let me use this feature because I'm too young anyways, haha. -Due to the OS switch, the Galaxy Watch 4 series is not compatible with iPhone. If you have an Android phone, this watch is the best you can get for now regardless of what you want from your smartwatch. As more manufacturers release Wear 3 powered watches, this may possibly change, but seeing how no one else has even rumored a Wear 3 watch yet, that might be a long time away.
I would recommend this to a friend Rated 5 out of 5 stars
One of the Best Android Smart Watch
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Amazing value for all the features. For me this is the first proper smart watch for Android. Anything below this is not worth it and even v5 does bring much extra, so this is the best value for what you get. I've been using for quite some time and I'm really happy with it. Great performance, features and durability. Totally recommended. I have a Samsung phone tho, don't really know how good will work with other android phones.
This review is from Samsung - Galaxy Watch4 Aluminum Smartwatch 44mm BT - Black
I would recommend this to a friendRated 5 out of 5 stars
If youre a samsung user: must have
||Posted . Owned for 2 weeks when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.First time smart watch purchase. Especially during promo season these are a 100% must have for your ecosystem. The UI is smooth, the functionality is absurd, and the customization options really make the watch your own!
This review is from Samsung - Galaxy Watch4 Aluminum Smartwatch 44mm BT - Black
I would recommend this to a friend- Pros mentioned:Comfortable
Rated 5 out of 5 stars
Love this watch
||Posted . Owned for 1 year when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.OMG I love this watch. So comfortable and works amazing!
This review is from Samsung - Galaxy Watch4 Aluminum Smartwatch 44mm BT - Black
I would recommend this to a friend - Pros mentioned:Battery life, Health tracking
Rated 4 out of 5 stars
CTS Technology Review Greastest Samsung Watch Yet
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I got this watch to wear and give an honest review and have been wearing this it for about 2 weeks now and I am very impressed. It is very stylish to be worn every day or to high class affair. Samsung put a lot of thought into the redesign and function of this watch. You can easily change the watch faces and even design your own after downloading a free app. The big touchscreen makes it easy to find and access the installed app Apps can be added and the icons rearranged to your preference. You can answer and make calls directly from the watch and the sound pretty clear. The people on the other end of the call have no idea that you are not talking from your phone. The S-Health app automatically counts steps, monitors sleep, exercise and will even give you a nudge if you haven't moved for about an hour. The watch has an always on function which will only show the watch and not the background until you raise your arm. With the always on function on I get just over 2 days of battery life but if I turn that function off I get a little over 3.5 days without recharging. I only have a couple of cons sometimes it will only allow me to see the header of an email and then I have to use my phone to see the rest. I'm very happy that Samsung now allows the goggle app play store. This has been a huge upgrade to the fictions of the watch. If you are a Samsung fan and have been wondering about upgrading your watch or even buying your first one. Then this is the one to get. I allow choose this one because it is much lighter then the routing bezel, even though I do kind of miss that detailing the bezel is big enough to where using your finger to route left or right isn't that big of a deal.
I would recommend this to a friend Rated 5 out of 5 stars
A Samsung watch
||Posted . Owned for 1 year when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I have a Google pixel watch not a Samsung watch but I heard they are really nice
This review is from Samsung - Galaxy Watch4 Aluminum Smartwatch 44mm BT - Black
I would recommend this to a friend- Pros mentioned:Compatibility
Rated 5 out of 5 stars
Great watch!
||Posted . Owned for 6 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Very useful! Watch pairs and coexists with similar devices in an ecosystem very well! Easy use and great functionality!
This review is from Samsung - Galaxy Watch4 Aluminum Smartwatch 44mm BT - Black
I would recommend this to a friend - Pros mentioned:Battery life, Comfortable
Rated 5 out of 5 stars
Comfortable first smartwatch
||Posted . Owned for less than 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.This is my first smartwatch. I was very happy with the ability to customize the widgets. In particular I like that I can set the biking app as one of three quick apps to select. The battery life appears to last well more than 24 hours and it charges rather quickly. I really like that i can track my heart rate for the duration of my workouts. The 44mm size fit me as a man quite well. The band is more comfortable than i expected. I am some who hates the feeling of watches but band doesn't irritate me. Generally i expect to be happy with this purchase based on my first couple of days with the product.
I would recommend this to a friend
Q: QuestionWhat is the difference between BT and LTE? What does BT stand for?
Asked by jaxlaw.
- A:Answer That is a great question, Jaxlaw! BT stands for the Bluetooth version of this device. The difference between the Bluetooth and the LTE version of the Galaxy Watc4 is that the LTE version allows you to call, text, etc. without your phone being nearby. This is done once it is activated through your phone carrier. The Bluetooth version allows you to use these features while it is connected to your mobile device. Thank you for taking the time to ask these questions. ^Kayla
Answered by Samsung
Q: QuestionWhat is the difference between the GPS model and the unlocked model?
Asked by Olivia.
- A:Answer The unlocked model is the model that comes with the ability to connect to cell service and work separately from a phone for calls and such.
Answered by EthanMG
Q: QuestionBest Buy doesn't give an option for the small or large bands like the Samsung web page; does the watch come with both bands?
Asked by GalaxyWatch4Bands.
- A:Answer No the watch only comes with a rubberized band that has 10 holes in it, and the remainder flap is supposed to be tucked under the watch..it will make your wrist sweat easily. I'm supplying length of watch with band, smallest hole attached, and last hole attached for reference
Answered by Piranha
Q: QuestionDoes this or any new Samsung watch 4 have Blood Pressure and ECG?
Asked by Francis.
- A:Answer Yes the watch has both, but only the ECG feature is authorized for use in the United States as of now. The blood pressure feature is not.
Answered by Souggie
Q: QuestionIs this watch waterproof?
Asked by Thankfulgirlnc.
- A:Answer Samsung says it's IP68 and that you can swim with it and track your swimming. You have to put the watch in water mode before getting it wet. It plays a tune when you take it out of water mode to push water out of the speaker holes. The only thing is Samsung will not honor the warranty for water damage. That's why I bought mine at BestBuy and bought an extended warranty from them
Answered by Retired
Q: QuestionDoes this device have fall detection?
Asked by ColtraneWasGod.
- A:Answer Yes, all the new Samsung model 4 smartwatches have it.
Answered by Danny
Q: QuestionDoes it work with GPS, NFC, BT and WIFI turned off? When off work I just need a watch without it snooping on me and the display model kept turning GPS on when I turned it off. Do I need to put it in airplane mode and will it tell time in such?
Asked by Brendan.
- A:Answer When in Airplane mode it will let it just display the watch face to tell time only menu is still available as well as settings but no "internet" connection.
Answered by ThatGirlDanielle86
Q: QuestionIs the band on the Aluminum version going to be removable and will you be releasing additional bands in the future such as leather or metal?
Asked by Gregory.
- A:Answer Yes, the bands can be removed very easily just like they were in the last couple of releases, Samsung has made it very easy for you to buy bands, even if they are from actually watches you own. I'm not sure if they will be releasing their own line of bands though, no word on that just yet.
Answered by BRND