Long Standby Time-Built in 550mAh polymer battery,charger time about 1 hour,could support 3-hour phone call,6-hour music play,stand by one week.
Call / SMS Reminder:supports 2G SIM card,can realize basic call and SMS function,if you want to use Whatsapp,Twitter,Facebook on watch,you need put a 2G SIM card or connect the watch with your phone.
Support hands-free calls /Answer or Dial calls from your wrist,Remote control your phone camera to taking a photo,health tracking app can monitor your sleeping,walking.
Two Working Mode:One is connect with phone by bluetooth,It Enable To Make Call Or Receive Call/Send/Get Message Etc Via Bluetooth.;Another one is Network Mode (need Insert SIM TF Card),It Enable To Make Call And Send Or Get Message Via The SIM Card You Inserted,the watch be a cell phone.
Compatible with Andriod smartphone& Android Tablet PC.(4.2 and Above) .Bluetooth 3.0,include SAMSUNG galaxy s4/s5/s6/s7 Edge Note 3/4/5 HTC NEXUS SONY LG HUAWEI XIAOMI ect.