It seems after the Verge review, that people think the Apple Watch is slow. I'm an iOS developer so I'll explain this a bit. It's a fluid OS - the OS is not the issue, it's how the Apple Watch deals with 3rd party app updates. Any Apple native apps are fluid, but 3rd party 'glances' show their GUI first, THEN query the iPhone for an update, transfer the data, and then show the results. 3rd party apps are forced to work this way right now. Apple does not allow 3rd party code to run on the actual watch. All 3rd party code must run on the phone and transfer data via bluetooth to the watch. So, say you click a button on the watch (in a 3rd party app), the watch must then tell the phone over bluetooth that the button was clicked, the phone then does the processing/web requests, then when done, tells the watch over bluetooth what to display on the screen next. So, this will be slow, and work this way, until probably September. I'm guessing new Watch APIs will be introduced at WWDC in June, then released as part of iOS 9. Apple apps don't need this round-trip watch-phone-watch interaction, thus are snappy. This is one reason you won't see many games on the watch at launch. Card games, tic-tac-toe games will be fine. But action games are too slow. Maybe some savvy developer can figure out a way to use animated gifs and a slower reaction time to make something interesting, but they'll be rare until September.