Ios watch android watch appliance type second screen operating system compatibility android 43 and later ios 80 and later compatible devices apple iphone 4s apple iphone 5 apple iphone 6 samsung galaxy s6 style classic housing material stainless steel housing colour silver housing design round watch strap material real leather watch strap colour beige armband features interchangeable bracelets clasp pin buckle deployment clasp operating system pebble o