---
product_id: 407334853
title: "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)"
brand: "samsung"
price: "4085854₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Amazon Renewed"
url: https://www.desertcart.vn/products/407334853-samsung-galaxy-watch-4-classic-42mm-smartwatch-with-ecg-monitor
store_origin: VN
region: Vietnam
---

# 1.2" Super AMOLED Display 50m Water Resistant IP68 ECG & Blood Pressure Certified 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)

**Brand:** samsung
**Price:** 4085854₫
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wrist game with classic style and next-gen health tracking!

## Quick Answers

- **What is this?** 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) by samsung
- **How much does it cost?** 4085854₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/407334853-samsung-galaxy-watch-4-classic-42mm-smartwatch-with-ecg-monitor)

## Best For

- samsung enthusiasts

## Why This Product

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

## Key Features

- • **Built for Every Adventure:** Military-grade durability with 50m water resistance means your watch keeps up rain or shine.
- • **Stay Connected, Stay Ahead:** Seamless Bluetooth and Wi-Fi connectivity with Wear OS ensures you never miss a beat on your Android device.
- • **Health Insights at Your Fingertips:** Advanced ECG, SpO2, and blood pressure monitoring keep your wellness front and center 24/7.
- • **Optimized for Your Active Lifestyle:** Accurate GPS tracking, sleep cycle analysis, and a 40-hour battery life keep you powered through work and workouts.
- • **Timeless Design Meets Cutting-Edge Tech:** Classic rotating bezel on a sleek 42mm stainless steel frame for effortless style and intuitive control.

## Overview

The Samsung Galaxy Watch 4 Classic 42mm is a premium refurbished smartwatch featuring a vibrant 1.2-inch Super AMOLED display, rotating bezel for easy navigation, and comprehensive health monitoring including ECG, SpO2, and blood pressure. Built with military-grade durability and 50m water resistance, it pairs seamlessly with Android devices via Bluetooth and Wi-Fi, offering GPS tracking, sleep analysis, and up to 40 hours of battery life—perfect for professionals balancing fitness and productivity.

## Description

This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of desertcart 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 desertcart-qualified suppliers. Then, the product is sold as an desertcart Renewed product on desertcart. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the desertcart Renewed Guarantee.

Review: Looks and Works as New - Looks and works like new. I have the 5 Pro and bought this one to just to put on at night for sleep tracking while the 5 Pro is charging. As it is with any 4 Classic of this size, even brand new out of the box, battery life is pretty abysmal, but that's doesn't have anything to do with this one being "renewed". Wearing it only while sleeping, I get 3 or 4 nights out of a full charge. With that in mind, if I were buying one to wear all day, I'd definitely get the larger Watch 4 Classic since it has a bigger battery and better battery life -- and my 60 year old eyes wouldn't have to squint as much to see the watchface. However, this works great for me for sleep tracking in the same Galaxy Wearable (Wear OS) app that the 5 Pro runs on.
Review: Samsung - Excelent

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09JBC4SZB |
| Additional Features | Accelerometer, Activity Tracker, GPS |
| Age Range Description | Adult |
| Band Color | black |
| Band Material Type | Stainless Steel |
| Battery Average Life | 40 Hours |
| Battery Capacity | 247 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Power | 247 Milliamp Hours |
| Best Sellers Rank | #12,299 in Electronics ( See Top 100 in Electronics ) #39 in Men's Smartwatches #65 in Renewed Smartwatches #318 in Smartwatches |
| Brand | Samsung |
| Built-In Media | Charging Cable |
| Case Material Type | Stainless Steel |
| Cellular Technology | 4G |
| Color | Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Android Devices |
| Connectivity Technology | Bluetooth |
| Controller Type | Android |
| Customer Reviews | 4.2 out of 5 stars 1,792 Reviews |
| Display Type | AMOLED |
| GPS Geotagging Functionality | True |
| Human Interface Input | Buttons |
| Item Dimensions | 7 x 4 x 5 inches |
| Item Weight | 0.03 Pounds |
| Manufacturer | Samsung Electronics |
| Memory Storage Capacity | 16 GB |
| Metrics Measured | Calories Burned, Distance, Sleep Duration |
| Model Name | Galaxy Watch4 Classic |
| Model Number | R880 |
| Operating System | Wear OS |
| RAM Memory Installed | 1.5 GB |
| Resolution | 396 x 396 |
| Screen Size | 1.2 Inches |
| Shape | Round |
| Sim Card Size | eSIM |
| Special Feature | Accelerometer, Activity Tracker, GPS |
| Sport Type | Fitness, Running |
| Style Name | Bluetooth |
| Supported Application | GPS |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adult |
| UPC | 656942444435 |
| Warranty Description | 90 days limited warranty |
| Warranty Type | Limited |
| Water Resistance Depth | 50 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Smart Watch |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |
| Wireless Provider | Unlocked |

## Product Details

- **Battery Capacity:** 247 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Connectivity Technology:** Bluetooth
- **GPS:** True
- **Memory Storage Capacity:** 16 GB
- **Operating System:** Wear OS
- **Screen Size:** 1.2 Inches
- **Shape:** Round
- **Special Feature:** Accelerometer, Activity Tracker, GPS
- **Wireless Communication Standard:** Bluetooth

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/610VZ9QroVL.jpg)
![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) - Image 2](https://m.media-amazon.com/images/I/61u7JSp4PUL.jpg)
![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) - Image 3](https://m.media-amazon.com/images/I/510UNZeEONL.jpg)
![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) - Image 4](https://m.media-amazon.com/images/I/51b9ZnyNROL.jpg)
![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) - Image 5](https://m.media-amazon.com/images/I/61qBxqAQLSL.jpg)

## Questions & Answers

**Q: Es Bluetooth o LT?**
A: Solo Bluetooth

**Q: What is the fall detection feature?**
A: I use it because of a medical condition. You install family or friends phone number. If you fall that number is called from your phone. You can also install an emergency number. The watch has detects a fall then call is placed. It works.

**Q: I can use the us version watch in India**
A: Yes, i have this watch and a note 10.

**Q: Do you need a service plan for watch and phone?**
A: Yes you do, most carriers charge $10-15 for a watch line but you must have phone service too.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Looks and Works as New
*by B***. on October 22, 2023*

Looks and works like new. I have the 5 Pro and bought this one to just to put on at night for sleep tracking while the 5 Pro is charging. As it is with any 4 Classic of this size, even brand new out of the box, battery life is pretty abysmal, but that's doesn't have anything to do with this one being "renewed". Wearing it only while sleeping, I get 3 or 4 nights out of a full charge. With that in mind, if I were buying one to wear all day, I'd definitely get the larger Watch 4 Classic since it has a bigger battery and better battery life -- and my 60 year old eyes wouldn't have to squint as much to see the watchface. However, this works great for me for sleep tracking in the same Galaxy Wearable (Wear OS) app that the 5 Pro runs on.

### ⭐⭐⭐⭐⭐ Samsung
*by A***S on May 4, 2026*

Excelent

### ⭐⭐⭐⭐ Refurbished watch is fantastic [18 months after purchasing]
*by S***M on November 21, 2024*

This has held up against bumps and scrapes and smashes without looking different the entire time I've owned it, battery life is still fantastic, functionality is good, it was helpful for getting around London. Tap to pay works great, the only thing it will not track well is your blood oxygen level. I'm a healthy man in my early 30s and the blood oxygen level is very consistently off. My wife is an accomplished nurse at Mayo Clinic, if my blood oxygen levels were what the watch claims, I'd be blue in the face and she'd be taking me to the emergency department daily and I'd have to be on oxygen tanks all day. All other aspects of the watch have been great. Connection to either wifi or bluetooth is consistent and strong, it reacts quickly, it's comfortable to wear daily. My only complaint is that it does absolutely have to be charged daily, which I'll admit doesn't take long, but it does need to happen if you make full use of the watch. Which is one down-side if you want/need accurate sleep tracking. But that said, the keyboard works great, there are tons of official Samsung watch faces and far more with 3rd party apps that get new faces regularly and look great, all functionality of the watch is very easy to access. You cannot really use this as a mini cellphone if you have literally any expectations of battery life or making long calls, but you can live out your Johnny Quest dreams of having a wrist communicator (so long as your phone is somewhere relatively closeby)

## Frequently Bought Together

- 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)
- Goton 3 in 1 Accessories for Samsung Galaxy Watch 4 Classic 42mm, 1 Rugged TPU Armor Bumper Case Cover +2 Tempered Glass Screen Protector Films + 1 Bezel Ring for Galaxy Watch4 Classic 42mm Black
- Diruite 4-Pack for Samsung Galaxy Watch 4 Classic 42mm / Galaxy Watch 42mm and Galaxy Watch 3 41mm Screen Protector Tempered Glass [2.5D 9H Hardness][Anti-Scratch]

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**Shop now:** [https://www.desertcart.vn/products/407334853-samsung-galaxy-watch-4-classic-42mm-smartwatch-with-ecg-monitor](https://www.desertcart.vn/products/407334853-samsung-galaxy-watch-4-classic-42mm-smartwatch-with-ecg-monitor)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-14*