Samsung Galaxy Watch 4 44MM SM-R870 Aluminum Smartwatch GPS Only – Green (Renewed)
49.99$
This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.
1.4″ (34.6mm) Super AMOLED, 450 x 450px Resolution, 16M Colors, 40-Hr Run Time, 361mAh Battery, Digital Bezel, Aluminum Frame, Sports Band, Bluetooth 5.0, Wi-Fi
16GB 1.5GB RAM, CPU: Dual-core 1.18 GHz Cortex-A55, Android Wear OS, One UI Watch 3, Exynos W920, Compatible with Android devices
Glass front (Gorilla Glass DX+), MIL-STD-810G compliant, 50m water-resistant (IP68), Compatible with standard 20mm straps, ECG certified, Blood pressure monitor
Sensors: Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor
Extension of Your Phone Galaxy Watch4 Classic works as an extension of your phone so you can talk, stream and text from your wrist on the go.
Description
Price: $49.88 - $49.99
(as of Aug 16, 2025 16:36:45 UTC – Details)
This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.
1.4″ (34.6mm) Super AMOLED, 450 x 450px Resolution, 16M Colors, 40-Hr Run Time, 361mAh Battery, Digital Bezel, Aluminum Frame, Sports Band, Bluetooth 5.0, Wi-Fi
16GB 1.5GB RAM, CPU: Dual-core 1.18 GHz Cortex-A55, Android Wear OS, One UI Watch 3, Exynos W920, Compatible with Android devices
Glass front (Gorilla Glass DX+), MIL-STD-810G compliant, 50m water-resistant (IP68), Compatible with standard 20mm straps, ECG certified, Blood pressure monitor
Sensors: Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor
Extension of Your Phone Galaxy Watch4 Classic works as an extension of your phone so you can talk, stream and text from your wrist on the go.
Customers say
Customers find the smartwatch to be in excellent condition, working well with Android devices, and appreciate its flawless screen. The device is easy to pair and set up, and customers consider it good value for money. However, the battery life receives mixed reviews – while some say it lasts all day, others report it doesn’t last. Additionally, the charging speed is slow, and customers note some scratches and scuffs on the bezel.
Additional information
| Product Dimensions | 1.75 x 1.7 x 0.39 inches |
|---|---|
| Item Weight | 0.96 ounces |
| ASIN | B09DZ7B6WL |
| Item model number | Galaxy Watch4 |
| Batteries | 1 Lithium Ion batteries required. |
| OS | Wear OS |
| RAM | 1 GB |
| Wireless communication technologies | Bluetooth 5.0 |
| Connectivity technologies | Bluetooth |
| GPS | True |
| Special features | GPS |
| Display technology | AMOLED |
| Other display features | Wireless |
| Human Interface Input | Touchscreen |
| Scanner Resolution | 450 x 450 |
| Color | Green |
| Battery Power Rating | 361 Milliamp Hours |
| Whats in the box | Band, Charger, Watch |
| Department | mens |
| Manufacturer | Samsung Electronics |
| Date First Available | August 30, 2021 |
| Weight | 27.22 g |
| Standing screen display size | 1.4 Inches |
| Memory Storage Capacity | 16 GB |
| Ram Memory Installed Size | 1.5 GB |
13 reviews for Samsung Galaxy Watch 4 44MM SM-R870 Aluminum Smartwatch GPS Only – Green (Renewed)
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NMP –
Awesome purchase
The quality is second to none. If I didn’t know it I’d have never guessed it was a renewed item. Battery life seems on par with what brand new should be. The charging seems to work properly and charger has had no issues. The watch overall looks perfect. It does everything it’s supposed to. Links with phone super easy. Initial setup took a bit because it had to do updates and everything but i had no issues with completion of anything. Would recommend a renewed product and will most likely look at others in the future!
Brownsugar –
Phenomenal product
Very great price and very high quality. I’ve had no troubles or complications it came with the band and instruction. I would recommend buying a screen protector or a case because it does scratch easily but other than that it is still a great product.
Rhett –
Best Smartwatch Value Out There!!!
Amazing value! Looks great (minus some minor scratches on face) and worked immediately out of the box. Looks and feels like a new watch, all things considered!If you’re on the fence about Amazon Renewed watches, don’t wait any longer. These are great.
JeffRoig –
Awesome watch
Awesome watch, had a few little scuffs on it around the edge. Works perfect.
Kenneth S –
Mine is excellent, looks & functions like new.
It came in an Amazon renewed box—just the watch and charger. I can’t find any scratches, the battery life seems to be what people are getting with a new one. I upgraded from an S3 Frontier. I watched several reviews but the best information came through Google AI. Here are the key differences” The Galaxy Watch 4 offers several significant improvements over the Galaxy Watch S3 Frontier Classic, especially in terms of features, software, and health sensors. Here’s a breakdown of the key advancements:Software and Health Tracking:Operating System: The Watch 4 runs on Wear OS 3 (powered by Samsung’s One UI Watch) compared to the Tizen OS on the S3. This provides access to a wider range of apps and improved interoperability with both Android and iOS devices.Advanced Health Tracking: The Watch 4 boasts a plethora of advanced health sensors not found on the S3, including ECG, blood oxygen saturation (SpO2) monitoring, body composition analysis, and advanced sleep tracking.Improved Fitness Features: The Watch 4 offers more workout tracking options, automatic activity detection, and enhanced coaching features for runners and other athletes.Performance and User Experience:Faster Processor and UI: The Watch 4 features a faster processor and smoother user interface compared to the S3, leading to a more responsive and fluid experience.Larger and Brighter Display: The Watch 4 has a larger and brighter display with a higher resolution, making it easier to read and navigate.Additional Features: The Watch 4 comes with several additional features not found on the S3, such as fall detection, voice recording, and built-in music storage. “One thing I will note is the weight difference. It’s much lighter, I forget I have it on. Much easier to do sleep tracking.
Jonny_2x4 –
Very good value if you need something thats not a cheap knockoff android smarthwatch.
Honestly this thing lasted me longer than i expected with very little issues other than how outdated it was. I was not longer able to update it without bricking but other than that it did everything I needed it for for the price. I just wanted to be able to read and send messages from my watch while i was at work. I fell in love with the Samsung watch series and actually upgraded to a 7 from this one. Definitely worth the money for a refurb.
Nahhh –
Fatal Flaws 🙁
Really really loved this but it just stopped working one day and became a bit of a fire hazard by massively overheating and not shutting down. Now it won’t hold a charge or stay on, it just repeatedly tries to turn on as a fails. If I didn’t have the insurance plan I would have been screwed out of like 60$Really nice watch when it worked but it’s now just garbage, and the insurance company won’t fix it.
K –
Excellent Condition!
My favorite from this series! Same day shipping and it is in excellent condition !I highly recommend purchasing from this company!
Cesar Ibarra –
No se puede enlazar con iPhone y estaba muy usado. Tenía marcas muy notorias. Lo que sí es un reloj muy bueno. Solo que no me sirve para mi iPhone
Juan Herrera –
Para mí es perfecto, no es tan caro, y cumple todas las funciones. Lo compre para correr y escuchar música sin el celular y todo excelente, se conectan los audífonos y registra ruta, km, se puede bajar la música por Spotify. Es genial. Afortunadamente salvó un par de detalles que se ven en las fotos no le afecta mucho que sea reacondicionado. Venía con cable de cargador genérico pero funciona sin problemas
Ana lili –
Willy Acevedo –
Calidad aun no se pero precio muy Accesible, Sinceramente esperaba algo mejor que el hauwei Gt 2 sport qué tengo desde que comenzó la pandemia y la verdad mucho mejor reloj el hauwei la verdad muchas app de salud en el samsung no me sirven para uno que correr en campo travieso (trail) , el hauwei se siente que traes reloj más pesado más vistoso, mejor correas, mejor bocina, más fácil la interface para el mismo celular Hauwei, pero ahora cambie de marca y espero que celular y smartwatch samsung me sirvan sus herramientas para mis actividades que realizo a diario.
Frank –
El reloj no le dura la pila, menos de medio día ya no tiene batería