function300 color screen bracelet (1.3-inch full circle IPS full view)Easy to replace the watchband, standard 20mmHeart rate detection, blood pressure detection, temperature detection, blood oxygen detectionTime display, steps, calories, distance, heart rate, blood pressure, sleep time, on/off display, stopwatchSleep monitoring (sleep time, sleep quality)Call notification, message reminder, multi-language pushAlarm clock reminder, remote photoTask reminders (sedentary reminders)Synchronize data to APK/APP"Synchronize F Fit with Android and Apple appsReminder (iOS in Apple Store, Android in App Store) "Scan the QR code to download and install F Fit APKSpecifications forThe system requires Android 4.4 and above, iOS 8.0 and above, and supports Bluetooth 4.0Bluetooth version BLE 5.0Main control chip Realtek8762c512 KB + 64 MB of memoryScreen resolution is 240*240Battery capacity 230 mAStandby time is about 30 daysWorking time is about 7-10 daysBuilt-in motor, vibration reminderWaterproof rating IP67Blood oxygen + heart rate HX3380+HX3601Temperature NTCGravity sensor STK8321Machine size 45*45*10.8(mm)The net weight of 40 g