Selling point: 4G large storage. Bluetooth call. Support connect TWS earphone Local music. One-key recording. Watch face custom. IP67 waterproof. Feature: Screen: 1.28 inch full touch screen. Battery capacity: 260mah. Bluetooth: Bluetooth LE 5.0 (Support Android 4.4, IOS9.0 and above) Sensor: 3D accelerated ROHMS CPU mode: TL8251 (ultra low power consumption). Charging method:USB magnetic 4 pin charging cable. APP name: Diri fit Functions: Bluetooth call: answer and rejected calls,when connected,it can make calls, store 1000 contacts, and record recent calls. Music function: Can play mobile phone music and local music, and connect to Bluetooth headsets/speakers. Memory: 4GB memory (can store 1000 songs) Music transmission method: USB 4pin magnetic data cable transmission Health monitoring: Step counting,sleep monitoring,heart rate,blood pressure,blood oxygen, sedentary reminder, drinking reminder. Exercise: steps, exercise mileage record, caliber consumption, multiple exercise modes. Motion track (displayed by APP). Life assistant function: Silent alarm clock, remote camera, music control, sedentary reminder, drinking reminder, recording function, etc. Watch face: there are watch faces in the watch,also it supports to customize the watch face from your phone album. Watch language: Chinese (Simplified), English, Japanese, German, French, Spanish, Portuguese, Italian, Thai, Russian. APP language: Chinese (Simplified), English, Japanese, German, French, Spanish, Portuguese, Italian, Thai, Russian.