Saron Enterprises New A1 M4 Smart Band  (Black Strap, Size : small)

New Arrival M4 Fitness band With Color Screen Smart Sport Bracelet Fitness Band (Black, Pack of 1) Waterproof rating : 5ATM Screen type: AMOLED Screen size : 0.95" Screen resolution : 120X240 RGB Screen color number : 24bit Screen backlight with maximum brightness ?400nit, adjustable brightness Touch screen: On Cell double point mutual capacitance Cover material : 2.5D tempered glass + AF coating Button: 1 touch button (wake up, return) Payment : support Alipay QR code payment Wristband type : detachable wristband Wrist strap width: 18mm Wristband material : TPU Wrist strap adjustable length : 155-216mm Memory : 512KB Flash: 16MB Connect : BT5.0 BLE Charging method : 2Pin Pogo Pin Charging time ? 2 hours, Vibration motor : rotor motor Shell material: PC plastic APP : Mifit App The system supports: Android4.4, iOS9.0 or above, Sensor: Three-axis acceleration sensor + three-axis gyroscope Self-developed PPG heart rate sensor Capacitive wear monitoring sensor NFC: Not supported, Battery : LiPo, 135mAh, Sports function running, walking, cycling, indoor running, swimming, exercising, sports Secondary screen, speed reminder, heart rate reminder, step counter Health monitoring compliance reminder, goal setting, sleep detection, manual heart rate Heart rate throughout the day, resting heart rate, heart rate curve, sedentary reminder Other function alarm clock, preset dial, custom replacement dial, screen lock, Timer, countdown, mobile phone alarm reminder, disconnected connection Wake up, call reminder, SMS reminder, WeChat reminder, calendar mention Wake up, APP message reminder, weather forecast, find phone, unlock Mobile phone, event reminder, night mode, do not disturb mode, Alipay Offline payment, remote control mobile music playback, Bluetooth broadcast, charging Progress display, wearing method selection, OTA upgrade