SIM card support: null Model Number: Q83 External Product ID: 6076 99757 1620 Brand: Other RAM Size: 128 MB External Product ID Type: EAN-13 With Camera: No Operating System: Multi Compatible Operating Systems: Android & iOS Model Number: Q83 Display Type: OLED Screen Resolution: 320x240 Feature: Touch Screen, Bluetooth, IP68 waterproof Operation System: ANDROID Camera: No Camera Certification: CE ROHS MSDS Screen: 2" Design: Bar Function: Rubber, THERMOMETER, Alarm Clock, Fitness Tracker, Call Reminder, Heart Rate Tracker, 24 hour instruction, Blood oxygen monitor Screen size: 1.28" 240*240 resolution Motor: 1020 cylindrical motor Bluetooth: BLE5.0 Battery capacity: 200mAh Waterproof level: IP67 Compatible: iOS 9.0 and above/Android 4.4 and above Charging time:: 2 hours Product color: black.