Samsung Galaxy Watch 4 Classic 42mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version, Black (Renewed)
Original price was: 54.67$.44.44$Current price is: 44.44$.
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.
1.2 “(30.5mm) w/ Rotating Bezel, Super AMOLED, 396 x 396 pixels (~330 ppi density), 16M Colors, CPU: Dual-Core 1.15GHz, 247mAh Battery, Android Wear OS, One UI Watch 3, Bluetooth, Wi-Fi
The Galaxy Watch4 Classic uses red LEDs and infrared rays to calculate your SpO2 levels or the amount of oxygen in your blood.
Glass front (Gorilla Glass DX+), MIL-STD-810G compliant, 50m water-resistant (IP68), Compatible with standard 20mm straps, ECG certified, Blood pressure monitor
5 ATM / IP68 The water and dust resistance rating, Military-grade durability, Larger screen but lighter and thinner for more comfort.
Compatible with Android Phones Running Android 6.0 and Above. NOT compatible with iOS.
Description
Price: $54.67 - $44.44
(as of Aug 16, 2025 15:33:19 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.
1.2 “(30.5mm) w/ Rotating Bezel, Super AMOLED, 396 x 396 pixels (~330 ppi density), 16M Colors, CPU: Dual-Core 1.15GHz, 247mAh Battery, Android Wear OS, One UI Watch 3, Bluetooth, Wi-Fi
The Galaxy Watch4 Classic uses red LEDs and infrared rays to calculate your SpO2 levels or the amount of oxygen in your blood.
Glass front (Gorilla Glass DX+), MIL-STD-810G compliant, 50m water-resistant (IP68), Compatible with standard 20mm straps, ECG certified, Blood pressure monitor
5 ATM / IP68 The water and dust resistance rating, Military-grade durability, Larger screen but lighter and thinner for more comfort.
Compatible with Android Phones Running Android 6.0 and Above. NOT compatible with iOS.
Customers say
Customers find the smartwatch to be in incredible condition, lasting up to 2 years with no issues, and appreciate its functionality and ease of setup. The device looks and works great, and customers consider it good value for money, particularly noting it’s a good deal for an older version refurbished model. The battery life receives mixed feedback, with some reporting it lasts about 30 hours while others find it bad, and customers report issues with charging speed, mentioning it needs to be plugged in all the time.
Additional information
| Product Dimensions | 7 x 4 x 5 inches |
|---|---|
| Item Weight | 11.97 g |
| ASIN | B09JBC4SZB |
| Item model number | Galaxy Watch4 Classic |
| Batteries | 1 Lithium Ion batteries required. |
| Date First Available | October 12, 2021 |
| Department | mens |
| Manufacturer | Samsung |
| Standing screen display size | 1.2 Inches |
| Memory Storage Capacity | 16 GB |
| Ram Memory Installed Size | 1.5 GB |


















Angie Quinzo –
Stylish and reliable watch – very satisfied!
I’m very happy with this watch. It looks elegant and modern, and it works perfectly. The time is accurate, the battery lasts a long time, and the strap is comfortable to wear all day.It’s great for both casual and more formal outfits. I’ve received several compliments already. Overall, it’s a high-quality watch at a great price. I would definitely recommend it!
SM1990 –
Works great for “renewed”
I’m always a bit nervous about buying “renewed” products, but I’ve been using this for a while now and it’s been working great. The battery life lasts about one day with charging it at night, so if you want to use sleep tracking this one might not be for you. It does have a couple light scratched on the moving dial, but nothing I notice regularly.
Gandalf –
FEATURE PACKED DEVICE
So many features in a wearable device! A kick a## heart monitor. with EEG capabilities Great sleep and fitness tracking, with too many functions to list, all available in the Samsung Health App. Comfortable band, and the watch is available in multiple sizes, very nice looking. Setup is a snap, just download the free app, turn the watch on, and follow the instructions. The only complaint I have, is the short battery life that requires a recharge daily. That being said, this is a great smart watch from Samsung, for so little money! No regrets here, I would recommend it to anyone, you won’t be disappointed.
Drew –
I wear it every day
I wear this watch every day and love it. I had an older version and finally upgraded. The battery life could be better. It still lasts all day but you cant miss a charge. And sometimes if it is searching for a signal or something it will go into power save mode at the end of the day. But over I love it. I also love that it looks like a real watch unlike Apple’s
A. Eagle –
Batteries are in bad condition, even on Excellent condition listings.
The watch arrived completely dead and with no charge. It finally showed 0% on charger after short while on the charger. I couldn’t get it to charge past 60% but maybe it would charge further with an old smartwatch charger I had been given.Thats bad for a li-po battery to be stored or purchased at such state! Usually goods in “Excellent” condition are shipped with plenty of charge and with a charger that works too. Otherwise it’s useless. I suspect this watch didn’t have a good charge and it sat on the shelf for a long while and self discharged.After setting it up to my phone (~30min), and it said that the battery was low (10-15%) before I would be able to wear and use it!I can’t use this and doubt it would work for many of the features like sleep tracking or a workout longer than an hour.This won’t work for a trip I planned to take where I expect a watch to keep a charge for at least 4 hours. Many state you can get a day out of the battery. I couldn’t get a fraction of it!How can this be considered refurbished if it was bad and not fixed?Seeing I was trying to get this in time for a trip, it’s a bummer to not get something working in its stated condition, and it seems like this is a common issue?
Karla –
I like this product. It’s awesome, this watch. It makes good inpression and easy to use
I like this product. It’s awesome, this watch. It makes good inpression and easy to use
D3ADMAU5 –
Great item, bad battery
The watch is really good, but the battery drains too fast
Ethan P. –
Best $80 ever spent
I wanted a simple watch with WearOS support without crazy expensive features. This watch checked all the boxes.It has a good selection of sensors, and the interface is tidy. I wear it to bed and it doesn’t have any scratches or damage. I like how minimal it looks and the tactile bezel is very handy. I sometimes use it when showering and it does just fine in the special water resistant mode. It was super easy to set up and it syncs with the cloud.The Samsung health stuff is awesome. My only complaint is that the ECG is locked to Samsung phones only, but I know there is a modded APK somewhere that can be side loaded elsewhere.Great stuff
Alex Navas –
En términos generales el dispositivo viene bastante bien, no hay detalles con el rendimiento o funcionamiento.Cada aspecto viene cuidado y llega en tiempo forma, viene en caja genérica y creo asà el cargador.Aspectos técnicos del reloj tiene buen diseño y desempeño, una limitante es su bateria que si bien se puede reducir su uso. Realizo bastante actividad fÃsica y casi llega al dÃa por el uso qué le doy.Fuera de ello me ha gustado y fue buen precio adquirido.
Astrid –
Al principio pensé que no iba a funcionar del todo bien pero ya llevo una semana usándolo y me ah servido de maravilla, además tiene varias funciones; inclusive eh podido instalar un juego y se pueden ver videos desde el reloj (desde el navegador samsung), se pueden tomar capturas de pantalla presionando los dos botones en caso de ser necesario y de manera automática aparece en la galerÃa del teléfono y en la del reloj. No sé si sea en todos los teléfonos pero como referencia yo tengo un samsung y le va bien.Tal vez un aspecto a considerar sea la duración de la baterÃa pero creo que es dependiendo del uso que le de cada usuario.En cuanto al servicio de envÃo a sido excelente, el producto venia super bien empaquetado e inclusive llegó antes de la fecha estimada.Personalmente me ha gustado muchÃsimo y la verdad es un producto que recomiendo, en especial si se quiere iniciar con una integración al ecosistema samsung.
Ignacio –
Me gustó mucho el funcionamiento, parece nuevo lo único malo es la baterÃa que por mucho dura un dÃa, es propio de Samsung no de este en concreto, deberÃa mejorar la marca en eso, pero en las medidas que toma es muy preciso y ayuda mucho
Enrique –
No incluÃa la caja original, pero fuera de eso es un gran reloj, con grandes capacidades. Lo utilizo para controlar mi hogar con la app de Google Home y no tiene problemas. Son bastantes los softwares que soporta y aún me queda por descubrir sus capacidades.
JONATHAN FV –
Lamentablemente el mÃo llegó defectuoso, no retiene la carga la baterÃaCabe mencionar que cuando solicitas la devolucion no te regresan la cantidad que pagaste originalmente