---
product_id: 390287241
title: "Samsung Galaxy Watch 4, 44mm, Black - Water Resistant, Wireless smartwatch, Sport Band, Wi-Fi/Bluetooth only - SM-R870NZKCXAA (Renewed)"
brand: "amazon renewed"
price: "$130.09"
currency: USD
in_stock: true
reviews_count: 10
category: "Amazon Renewed"
url: https://www.desertcart.us/products/390287241-samsung-galaxy-watch-4-44mm-black-water-resistant-wireless-smartwatch
store_origin: US
region: United States of America
---

# 44mm vibrant AMOLED display Water resistant for active lifestyles Battery lasts up to 2 days on a single charge Samsung Galaxy Watch 4, 44mm, Black - Water Resistant, Wireless smartwatch, Sport Band, Wi-Fi/Bluetooth only - SM-R870NZKCXAA (Renewed)

**Brand:** amazon renewed
**Price:** $130.09
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wrist game—where style meets unstoppable tech

## Quick Answers

- **What is this?** Samsung Galaxy Watch 4, 44mm, Black - Water Resistant, Wireless smartwatch, Sport Band, Wi-Fi/Bluetooth only - SM-R870NZKCXAA (Renewed) by amazon renewed
- **How much does it cost?** $130.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/390287241-samsung-galaxy-watch-4-44mm-black-water-resistant-wireless-smartwatch)

## Best For

- amazon renewed enthusiasts

## Why This Product

- Trusted amazon renewed brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Limitless App Freedom:** Install any APK, from fitness to fun—your watch, your rules
- • **Effortless Fitness Mastery:** Auto workout tracking & live coaching keep you ahead of your goals
- • **Sleep Smarter, Live Better:** Advanced sleep & continuous SpO₂ monitoring for next-level recovery
- • **Always Connected, Hands-Free:** Calls, texts, music & notifications right on your wrist—ditch the phone pullout
- • **Sleek Style Meets Rugged Durability:** Lightweight, customizable design that withstands your toughest adventures

## Overview

The Samsung Galaxy Watch 4 (44mm, Black) is a renewed, fully functional smartwatch featuring a vibrant AMOLED display, water resistance, and a battery life lasting up to two days. It offers advanced fitness tracking with auto workout detection, continuous SpO₂ and sleep monitoring, seamless phone integration via Wi-Fi/Bluetooth, and customizable bands and watch faces. Perfect for professionals who demand style, durability, and cutting-edge health insights on the go.

## Description

Cosmetic Condition: Excellent Screen: No scratches Body: No signs of cosmetic damage (scratches, dents, and other) are visible when the product is held 12 inches away. Functional Condition: Fully Functional Battery: >80% of original battery life Accessories: Generic or original equipment manufacturer accessories and packaging provided. Guarantee: 90-day desertcart Renewed Guarantee

Review: Little badass watch! - I bought this watch preowened, I never owned a smart watch until this product. Im not going to lie this watch is a tank! I do reccommend 44mm screen protectors! The battery life is great I wear it everywhere. Only thing is charging it is wireless there has been somedays where I didn't place it corretly on the charger woke up to low battery, but it still gets the job done. I am outdoor person so have even been fully submurged lakes there was no damage at all I take showers with it and no damage. I've also use this watch while mountain biking and I've slammed with it on still works! The outside the screeen glass metal has some wear on it, but I think it gives it flare like Boba Fetts armor. I bougth this watch to keep track of my fitness and has a bunch of great features and there is also one where you can use the watch to take pictures hands free! Lastly for my nerds yes I have downloaded the Fallout Pipboy watch screen on it pretty cool!
Review: Just great - First, looks. It's super sleek and modern unlike the toyish appearance of the apple watch or fit bit alternatives. It's super comfortable and I find it easy to wear all day (unlike other watches I've had). It's also really sturdy. I've smacked it on many things by accident, and not a scratch on it. The band is super comfortable and I like the material on that. Let's talk about functionality: The battery life is pretty good. Not the best but I'd say I charge it up around once every 2 days. You can also improve the battery life by disabling unnecessary features but that depends on your preferences. Pixel watch face is a great watch face that, in my opinion, looks better than any of the official faces and saves battery life by being black in color (plus it's super cheap, way worth it). The features are amazing. So much more than what you get from the competition, including the ability to install ANY apk (yes any, I put minecraft on this thing) with some technical knowhow. The fitness tracking is great, it even detect what type of exercise you're doing, and the fact that things like google maps are built in is fantastic. Taking/making calls and texts is easy and nice as well. TLDR: if you need a smart watch and you have a Samsung device, there is no better option, especially at this price point. Well worth the money!

## Features

- 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.
- Advanced Sleep / Continuous SpO2: Wake up feeling refreshed and recharged every day with advanced sleep tracking. When you go to bed, the sleep tracker on your Galaxy Watch4 starts monitoring your sleep and SpO₂ levels continuously. This info is combined with snoring assessments captured on your smartphone to help you figure out how to improve your overall sleep quality.
- Extension of your phone: Galaxy Watch4 puts the phone features you need right on your wrist, so you can do the things you love on the go without pulling out your phone. Whether you’re running, power-lunching or checking off your to-do list, you’re connected to calls, texts, notifications and music streaming, all accessible with a simple tap.
- Sleek and lightweight design: Look great while crushing your day with the sleek, lightweight and customizable Galaxy Watch4. Combining fashion and function, it’s made to move with you while working out, and it matches your mood and your outfit with bands ranging from green, silver, pink and black, plus a variety of watch faces.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09JV34VM7 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #51,696 in Electronics ( See Top 100 in Electronics ) #220 in Renewed Smartwatches #440 in Activity & Fitness Trackers #1,044 in Smartwatches |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,129) |
| Date First Available | October 19, 2021 |
| Item Weight | 8 ounces |
| Item model number | SM-R870 |
| Manufacturer | Samsung |
| Memory Storage Capacity | 16 GB |
| Product Dimensions | 6 x 4 x 4 inches |
| Ram Memory Installed Size | 1.5 GB |
| Standing screen display size | 44 Millimeters |

## Product Details

- **Battery Capacity:** 430 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Connectivity Technology:** Bluetooth
- **GPS:** Built-in GPS
- **Memory Storage Capacity:** 16 GB
- **Operating System:** android
- **Screen Size:** 44 Millimeters
- **Shape:** Round
- **Wireless Communication Standard:** Bluetooth

## Images

![Samsung Galaxy Watch 4, 44mm, Black - Water Resistant, Wireless smartwatch, Sport Band, Wi-Fi/Bluetooth only - SM-R870NZKCXAA (Renewed) - Image 1](https://m.media-amazon.com/images/I/61lreWWyEaL.jpg)

## Questions & Answers

**Q: Viene ennla caja original del producto??**
A: Hola, si viene en caja original y el reloj en perfectas condiciones. Al menos así fue el que me llego.

**Q: Que version es de 40 o 44mm ?**
A: 44mm

**Q: De que material es su protector de pantalla**
A: el vidrio de la pantalla esta afuera, no tiene ningun tipo de proteccion aunque el vidrio es increiblemente resistente, puedes comprar un protector aparte pero a mi no me funciono ya que cuando se moja no responde bien la pantalla.  hay otros protectores que son solo bordes de plastico pero nunca lo use

**Q: Is this the usa version or international version??**
A: US

## Customer Reviews

### ⭐⭐⭐⭐⭐ Little badass watch!
*by M***T on March 13, 2025*

I bought this watch preowened, I never owned a smart watch until this product. Im not going to lie this watch is a tank! I do reccommend 44mm screen protectors! The battery life is great I wear it everywhere. Only thing is charging it is wireless there has been somedays where I didn't place it corretly on the charger woke up to low battery, but it still gets the job done. I am outdoor person so have even been fully submurged lakes there was no damage at all I take showers with it and no damage. I've also use this watch while mountain biking and I've slammed with it on still works! The outside the screeen glass metal has some wear on it, but I think it gives it flare like Boba Fetts armor. I bougth this watch to keep track of my fitness and has a bunch of great features and there is also one where you can use the watch to take pictures hands free! Lastly for my nerds yes I have downloaded the Fallout Pipboy watch screen on it pretty cool!

### ⭐⭐⭐⭐⭐ Just great
*by M***W on July 19, 2022*

First, looks. It's super sleek and modern unlike the toyish appearance of the apple watch or fit bit alternatives. It's super comfortable and I find it easy to wear all day (unlike other watches I've had). It's also really sturdy. I've smacked it on many things by accident, and not a scratch on it. The band is super comfortable and I like the material on that. Let's talk about functionality: The battery life is pretty good. Not the best but I'd say I charge it up around once every 2 days. You can also improve the battery life by disabling unnecessary features but that depends on your preferences. Pixel watch face is a great watch face that, in my opinion, looks better than any of the official faces and saves battery life by being black in color (plus it's super cheap, way worth it). The features are amazing. So much more than what you get from the competition, including the ability to install ANY apk (yes any, I put minecraft on this thing) with some technical knowhow. The fitness tracking is great, it even detect what type of exercise you're doing, and the fact that things like google maps are built in is fantastic. Taking/making calls and texts is easy and nice as well. TLDR: if you need a smart watch and you have a Samsung device, there is no better option, especially at this price point. Well worth the money!

### ⭐⭐⭐⭐⭐ Usability and comfort
*by A***R on October 20, 2025*

I like it. It works very well and the size being 44mm makes it very easy on the eyes. Very comfortable to wear. Battery life depends on what you all have running on your watch. I have the health app running so battery life is 2 days. With out that you can get almost 5 days of battery life.

## Frequently Bought Together

- Samsung Galaxy Watch 4, 44mm, Black - Water Resistant, Wireless smartwatch, Multisport Tracker, Sport Band, Wi-Fi/Bluetooth only - SM-R870NZKCXAA (Renewed)
- Tensea [2Pack for Samsung Galaxy Watch 5 2022/4 2021 Screen Protector Case 44mm Accessories, Protective Face Cover Built-in Tempered Glass Film Bumper Case (44mm, Matte Black)
- Lerobo Elastic Bands Compatible with Samsung Galaxy Watch 7 6 5 4 40mm 44mm/for Galaxy Watch 6 4 Classic Band 42mm 46mm 43mm 47mm/Watch 5 Pro Band 45mm/Active 2,3 Pack 20mm Adjustable Nylon Sport Band

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-19*