Bluetooth 5.2; compatible with Android 5.0 and above and iOS 9.0 and above.
Full-touch operation; 2.01-inch TFT screen with 240 × 296-pixel resolution.
Health monitoring: heart rate, blood oxygen (SpO2), and sleep. Health tests are for reference only and cannot be used for medical purposes; this is non-medical equipment.
Compatible with Android 6.0 and above and iOS 11.0 and above; uses the Nx Wear app.
Health monitoring includes heart rate, blood oxygen (SpO2), stress, sleep, and women's health. Health tests are for reference only; the wristband is not medical equipment and cannot be used for medical purposes.
Activity tracking includes multiple sports modes, calories, distance, and step count.
Bluetooth 5.3; compatible with Android 4.4 and above and iOS 9.0 and above.
Health monitoring includes heart rate, blood oxygen (SpO2), pressure detection, sleep, and women's health; health tests are for reference only and cannot be used for medical purposes.
Multiple sports modes; records calories, distance, and step count.