Ios watch appliance type second screen operating system compatibility ios 100 and later compatible devices apple iphone 7 plus apple iphone 7 apple iphone 6s plus apple iphone 6s apple iphone 6 plus apple iphone 6 apple iphone se apple iphone 5s apple iphone 5c apple iphone 5 style modern housing material stainless steel casing properties shockproof scratchproof housing colour grey case height 114 mm watch strap material metal watch strap colour black