Specifications
Screen Size44 millimetersTouch ScreenYesOperating System CompatibilityApple iOSOperating SystemwatchOSBuilt-in Storage16 gigabytesGlobal PositioningGPS
Key Specs
Screen Size44 millimetersTouch ScreenYesOperating System CompatibilityApple iOSOperating SystemwatchOSBuilt-in Storage16 gigabytesGlobal PositioningGPSMetrics MeasuredCadence, Electrocardiography (ECG), Target heart rateProtective QualitiesWater resistant, Dust resistantMaximum Depth of Water Resistance164 feetBand MaterialFluoroelastomerSeriesSeries 4
General
Product NameGeek Squad Certified Refurbished Apple Watch Series 4 (GPS) 44mm Space Gray Aluminum Case with Black Sport BandBrandAppleProduct TypeSmartwatchForm FactorWristwatchModel FamilyApple Watch Series 4Model NumberTI-GSRF MU6D2LL/ASeriesSeries 4Year of Release2018ColorSpace GrayColor CategorySpace Gray
Design
Case Size44mmCase ShapeRectangularCase Thickness0.42 inchesBand TypeSport BandBand ColorBlack
Display
Display ScreenYesScreen Size44 millimetersTouch ScreenYesScreen Resolution368 x 448Display TypeOLED, Retina DisplayColor DisplayYesClock DisplayYesBacklit DisplayNoAdjustable BrightnessYesCustomizable Watch FacesYesScreen MaterialIon-X Glass
Compatibility
Operating System CompatibilityApple iOSOperating SystemwatchOSVoice Assistant Built-inSiri
Connectivity
Bluetooth Version5.0Wireless ConnectivityBluetooth, Wi-FiWireless StandardN
Features
Built-in Storage16 gigabytesGPS EnabledYesGlobal PositioningGPSAlert TypeVibrationMobile Payment Service SupportedApple PayMusic PlayerYesBuilt-In MicrophoneYesVoice ActivatedYes
Activity
Metrics MeasuredCadence, Electrocardiography (ECG), Target heart rateMulti-Sport TrackingYesSensorsAccelerometer, Altimeter, Ambient light sensor, Gyro sensor, Electrical heart rate (ECG) sensor
Performance
Protective QualitiesWater resistant, Dust resistantMaximum Depth of Water Resistance164 feet
Dimensions
Product Height1.73 inchesProduct Depth0.42 inchesProduct Weight1.29 ouncesMinimum Wrist Size139.95 millimetersMaximum Wrist Size210.06 millimetersBand SizeAdjustable
Power
RechargeableYesCharging Interface(s)WirelessBattery TypeLithium-ionReplaceable BatteryNo
Material
Band MaterialFluoroelastomerCase MaterialAluminumCase Back MaterialSapphire crystal and ceramic
Warranty
Manufacturer's Warranty - Parts90 DaysManufacturer's Warranty - Labor90 days
Other
UPC400063040126
Geek Squad® Certified Refurbished products are thoroughly, painstakingly and lovingly tested, so you can be sure that your device will work right, right away. Learn more about Fundamentally redesigned and reengineered. The largest Apple Watch display yet. Built-in electrical heart sensor. New Digital Crown with haptic feedback. Low and high heart rate notifications. Fall detection and Emergency SOS. New Breathe watch faces. Automatic workout detection. New yoga and hiking workouts. Advanced features for runners, such as cadence and pace alerts. New head-to-head competitions. Activity sharing with friends. Personalized coaching. Monthly challenges and achievement awards. You can use Walkie-Talkie, make phone calls, and send messages. Listen to Apple Music¹ and Apple Podcasts. And use Siri in all-new ways. Apple Watch Series 4 lets you do it all right from your wrist.
GPS
Over 30% larger display²
Electrical and optical heart sensors
Digital Crown with haptic feedback
50% louder speaker²
S4 SiP with faster 64-bit dual-core processor
Improved accelerometer and gyroscope for fall detection
Swimproof³
watchOS 5
Aluminum case
Apple Watch Series 4 (GPS) requires an iPhone 5s or later with iOS 12 or later
¹ Apple Music requires a subscription.
² Compared with the previous generation.
³ ISO standard 22810:2010. Appropriate for shallow-water activities such as swimming. Submersion below shallow depth and high-velocity water activities not recommended.
What's Included
Space Gray Aluminum Case
Black Sport Band
1m Magnetic Charging Cable
5W USB Power Adapter
Search
- A: AnswerCame brand new. Wish I could buy a couple more.
Answered by Watchme
Q: QuestionWhether ECG facilities are available in this model watch(0 answers)
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Q: QuestionWhen would you getting more watch series 4 mm44 ?(0 answers)
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Geek Squad Certified Refurbished Apple Watch Series 4 (GPS) 44mm Space Gray Aluminum Case with Black Sport Band - Space Gray - (2018)
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Reviews
Rating 4.3 out of 5 stars with 21 reviews
4.3Rating by feature
- 4.4Value
Rating 4.4 out of 5 stars
- 4.6Quality
Rating 4.6 out of 5 stars
- 4.6Ease of Use
Rating 4.6 out of 5 stars
27 expert reviews
Customers are saying
Customers often highlight the impressive battery life of the Geek Squad Certified Refurbished Apple Watch Series 4.
This summary was generated by AI based on customer reviews.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Rated 5 out of 5 stars
Dealll
I’m always happy to find a good deal . Refurbished is the new new . So I didn’t mind . Got for a great price and worked great !
Posted by Jave
Rated 4 out of 5 stars
Apple Watch series 4
This is a very good watch as long as your expectations arent extravagant. Theres plenty of faces to choose from, so I was able to find one that I really liked. The features all work as they should, and its very nice to get notifications on your wrist without having to pull your phone out. Sometimes the GPS tracking is a little off as far as elevation is concerned, but thats not a huge deal. I normally get about one day of battery life out of it, with light use I could probably get two, but I just charged every night. I will definitely recommend this product
Posted by pmohan
Rated 5 out of 5 stars
Great overall even though it was refurbished
I bought this as a gift and was nervous about the product due to it being refurbished. Everything was packed nicely in the box almost looking new. When we first opened it up it wasn't charging so we started to worry but after a hard reset it started working just fine. Overall a great product and I would recommend it to anyone who has an iphone.
Posted by Bayareaguy510