Was thinking about getting a series 0 watch as they are cheap and WatchOS3 seems to make them work faster. My question is anyone think WatchOS4+ will be supported? I don't want to spend all this money and not get future updates. Also the only difference between series 0 and 2 is GPS and water-proofing right? I know it has a faster CPU/GPU something etc. With series 0 I can still get the AW splashed/wash hands right?