Functionality : Time/Date/Week/Battery State Display Ringing Reminder, Answer Or Dial Calls From Smart Watch ,Support Hands-Free Calls, Phone Book, Phone Sync Sms/Call History(Only For Android Phone), Remote Camera, Speaker, G-Sensor, Mic, Bt-App, Music Player, Alarm, Stopwatch, Anti-Lost, Calendar, Calculator, Sedentary Reminder, Pedometer, Sleep Monitor, Water Intake,Material-dial- plastic strap- silicone Display : 1.48" Capacitive Touch Screen , TFT-LCD,Screen Resolution-128*128 Compatibility: Compatible with all Bluetooth V3.0 or above smartphones, tablets and PCs (support Android 4.2 or above), CPU type-MTK6260, CPU speed-360Mhz, RAM-128mb, ROM-64mb, Micro USB interface: Bluetooth Version: V3.0, Protocol - A2DP + HFP 1.5 + HS P 1.2 , Range of Frequency - 2.4GHz spectrum, Ambient Noise - 75dB, Transmitting Range - 10m Battery and Power: Charging Time - about 1-2 hour, Talk Time - about 3 hours, Standby Time: about 100-120 hours, Built-in 230mAh rechargeable battery.