Interface : USB 2.0Screen material: LCD full-view circular screenWearing method: wrist strapMenu language : multi-languageAdditional features: health monitoring, information push, motion tracking, smart reminder, mobile positioning, monitoring, sleep analysis, step counting, audio and video entertainmentWireless distance: 5m (inclusive) -10m (inclusive)Battery capacity :660Mode of operation: touch + buttonWrist strap material: siliconeCompatible platforms: iOSFunction : Smart reminder