Samsung
Samsung Galaxy Watch4 Classic 42mm Smartwatch Black
★★★★★
396 x 396247mAhIP68MIL-STD-810G
Enhance Your Wellness Journey with a Renewed Classic Introducing the Samsung Galaxy Watch 4 Classic 42mm, a renewed smartwatch that seamlessly blends style and functionality. Monitor your health, track your fitness, and stay connected with advanced features like ECG monitoring, GPS, and Bluetooth...
$72.95*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.
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Overview
Enhance Your Wellness Journey with a Renewed Classic
Introducing the Samsung Galaxy Watch 4 Classic 42mm, a renewed smartwatch that seamlessly blends style and functionality. Monitor your health, track your fitness, and stay connected with advanced features like ECG monitoring, GPS, and Bluetooth connectivity.
This professionally inspected and tested device offers a like-new experience, backed by the Amazon Renewed Guarantee.
- Display: 1.2 "(30.5mm) Super AMOLED, 396 x 396 pixels
- Processor: Dual-Core 1.15GHz
- Memory: 16 GB Storage
- Operating System: Android Wear OS, One UI Watch 3
- Connectivity: Bluetooth, Wi-Fi
- Sensors: ECG, Blood pressure monitor, SpO2
- Durability: MIL-STD-810G compliant, 50m water-resistant (IP68)
- Compatibility: Android 6.0 and Above (NOT compatible with iOS)
Key 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.
Specifications
Model
Galaxy Watch4 Classic 42mm
Display Size
1.2 "(30.5mm)
Display Type
Super AMOLED
Display Resolution
396 x 396 pixels
Pixel Density
~330 ppi
Display Colors
16M Colors
Processor
Dual-Core 1.15GHz
Battery Capacity
247mAh
Operating System
Android Wear OS, One UI Watch 3
Connectivity
Bluetooth, Wi-Fi
Water Resistance
50m (IP68), 5 ATM
Durability Standard
MIL-STD-810G compliant
Strap Compatibility
Standard 20mm straps
Health Features
SpO2 tracking (red LEDs, infrared rays), ECG certified, Blood pressure monitor
Phone Compatibility
Android Phones Running Android 6.0 and Above
Bezel Type
Rotating Bezel
Pros & Cons
👍 Pros
- Features a rotating bezel for intuitive navigation, enhancing user interaction with the 1.2" Super AMOLED display.
- Offers comprehensive health monitoring including SpO2 levels, ECG certification, and blood pressure monitoring.
- Built with military-grade durability (MIL-STD-810G compliant) and 50m water resistance (IP68), suitable for active lifestyles.
- Equipped with a Dual-Core 1.15GHz CPU, providing responsive performance for apps and functions.
- Supports standard 20mm straps, allowing for easy customization and personal style choices.
👎 Cons
- This smartwatch is not compatible with iOS devices, limiting its usability to Android phone users.
- The 247mAh battery capacity might require frequent charging depending on usage, though specific battery life is not stated.
- Blood pressure monitoring and ECG features, while present, often require calibration and may not be medically certified in all regions.
- The display density of ~330 ppi, while good, might not be as razor-sharp as higher-resolution smartwatch displays.
- Specific details on onboard storage capacity or NFC capabilities for payments are not provided in the features.
Frequently Asked Questions
What operating system does the Samsung Galaxy Watch4 Classic use?
The Samsung Galaxy Watch4 Classic runs on Android Wear OS with One UI Watch 3, providing a streamlined user experience.
Is this smartwatch compatible with iPhones?
No, the Samsung Galaxy Watch4 Classic is only compatible with Android phones running Android 6.0 and above; it is NOT compatible with iOS.
How does the watch measure blood oxygen levels (SpO2)?
The Galaxy Watch4 Classic calculates SpO2 levels using red LEDs and infrared rays to measure the amount of oxygen in your blood.
What are the durability and water resistance ratings of this smartwatch?
It features military-grade durability (MIL-STD-810G compliant) and is 50m water-resistant (IP68), also rated at 5 ATM.
Can I change the strap on the Galaxy Watch4 Classic?
Yes, the smartwatch is compatible with standard 20mm straps, allowing for personalization and easy replacement.
What is the display technology and resolution of the watch?
It features a 1.2" (30.5mm) Super AMOLED display with a resolution of 396 x 396 pixels and approximately 330 ppi density.
What health monitoring features are included?
Key health features include SpO2 level calculation, ECG certification, and a blood pressure monitor for comprehensive wellness tracking.
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