Multi-function digital bluetooth watch Sports watchs

Multi-function digital bluetooth watch Sports watchs​: Video Resolution 1280*720P Operated on the watch 640*480P operated on the app Video Format MP4 Visual Angle 90 degree Battery capacity 360mAh Voice-Recording Range 5 m2 Storage Temperature -20 80 degree centigrade Operating Temperature -10 48 degree centigrade The Type of Memory card TF card Optional Memory 8 GB 32 GB Play software The video player sofeware which is the buil-in one of operation sytem or mainstream one