> and needs to be tethered to an iPhone. How do you know? I couldn't find that on Apple's iWatch page. (Not doubting it, everyone is saying it, but I'm just wo

> and needs to be tethered to an iPhone. How do you know? I couldn't find that on Apple's iWatch page. (Not doubting it, everyone is saying it, but I'm just wondering where it is or if it's just an assumption.)