For first-time Apple Watch buyers, do you buy the $199 Apple Watch Series 3 or the $399 Apple Watch Series 5? I've used every Apple Watch since it was first announced, and on the surface, it feels like the Series 5 isn't that big of an upgrade (especially compared to the Series 4), but after two weeks of testing, the Series 5 feels like what the Apple Watch should have been from the start. In addition to the AOD, you're getting a bigger screen, fall detection, and Apple's ECG app for detecting irregular heart rhythms. For me, my money's on peace of mind, a watch that feels like a watch, and the larger display.