SMART WATCH:ZD5 Ultra Mate APP:ZORDAI CPU:AX Compatible system: Android 5.0 and above; IOS 10.0 and above Flash memory: 128MB Screen type: TFT Screen size: 1.5 inches Resolution: 485*485 Bluetooth: BLE5.2 Heart rate: BD1662_I2C Battery type: polymer lithium battery Capacity: 380mAH Charging method: magnetic charge Function: Breathing training, dial push, stopwatch, brightness adjustment, multi sport mode, sleep, heart rate, information, remote music, remote photography, weather, finding mobile phone (connected to mobile phone), Bluetooth call, Bluetooth music play, password protection, calculator, split screen display, quick widget, weather, massager, Alipay, my QR code, NFC, ECG, blood oxygen, blood pressure, AI voice assistant The app supports languages: Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese, Italian, Polish, Korean,Vietnamese, Traditional Chinese, Denmark, Greece, Latin, Romania, Türkiye, Czech Device side supported languages: Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese, Italian, Polish, Korean,Vietnamese, Traditional Chinese, Denmark, Greece, Latin, Romania, Türkiye, Czech