When you spend hundreds on an Apple Watch with so many unique features, you want the most bang for your buck. From a software perspective, Apple's current watchOS 26 supports all the way back to the Apple Watch Series 6, introduced in September 2020. But will Apple Watch hardware last that long (or longer) for basic tracking and notifications? Redditor gespenst_mk2 wore a Series 4 model introduced in 2018 for five years, and it continued to work well. That said, you can reasonably expect an Apple Watch to last for a ballpark of around five to six years, though it could last longer.