Function description:1， mobile phone calls vibration alert;2， mobile phone call answering the intercom;3， mobile phone lost vibration alert;4， cell phone caller id display;5， mobile phone to redial the number;6， mobile phone music broadcast;7， OLED clock display;8， synchronization， incoming number display;9， SMS， QQ， WeChat remind (android mobile phone， only apple does not support);10， remote picture， looking for mobile phones， remote remind (android mobile phone， only apple does not support);11， pedometer， sleep monitoring， alarm clock， stopwatch;12， built-in， Britain and France in the Thai language and other seven countries.Warm prompt:1， apple system can use the function: caller id and vibration alert， synchronous mobile phones calls， synchronous the phone book， anti-theft alarm， pedometer， the alarm clock.2， the function of the android can use: caller id and vibration alert， synchronization， phone calls， synchronous mobile phone book， anti-theft alarm， pedometer， alarm clock， sleep monitoring. Most of the android camera phones， remote synchronization text messages， QQ WeChat information remind， watch for cell phone.3， the android system temporarily not perfectly compatible with millet， huawei， cool， VIVO， Nubian， backgammon， OPPO， meizu domestic models， some features may be missing.4， D8 and strap， is the difference between D8S D8 for metal strap， D8S for leather belt. Function， makes no difference.