The Samsung Galaxy Watch 4 Classic SM-R890 is a 46mm Bluetooth smartwatch with a stainless steel frame and a physical rotating bezel, running on Wear OS Powered by Samsung. It is designed for Android compatibility and offers extensive health and fitness tracking features.
Key Features and Specifications
- Operating System: Runs on Wear OS Powered by Samsung, providing access to a wide range of apps via the Google Play Store.
- Health Monitoring: Equipped with the Samsung BioActive Sensor, it measures heart rate, ECG, blood pressure (requires calibration with a traditional cuff every four weeks), blood oxygen levels, and performs body composition analysis (BIA) to check body fat percentage and skeletal muscle mass.
- Fitness Tracking: Supports over 90 different exercises, with automatic detection for common activities, step counting, calorie tracking, and built-in GPS.
- Display: Features a 1.4-inch (34.6mm) Super AMOLED display with a resolution of 450 x 450 pixels, protected by Corning Gorilla Glass DX.
- Design & Durability: The refined design includes a classic rotating bezel for navigation and a durable stainless steel casing. It is rated IP68 for water and dust resistance and is MIL-STD-810G compliant for military-grade durability.
- Connectivity: Includes Bluetooth v5.0, Wi-Fi (802.11 a/b/g/n), and NFC for features like contactless payments via Samsung Pay.
- Memory and Storage: Has 1.5GB of RAM and 16GB of internal storage.
- Battery Life: A typical usage life of up to 40 hours is expected from the 361mAh battery.
- Compatibility: Primarily compatible with Android phones running Android 6.0 and above. Many advanced features are not fully supported on iOS devices.
- Condition : Used

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