tldr; The one that started ECG. Still capable but losing software support. Buy used only, upgrade to SE if budget allows.
$112.00 on AmazonScores based on sentiment analysis of topic-related comments
Best praise vs top criticism for Apple Watch Series 4
“Oh really. So they make and receive calls but not messages? That seems strange to me. Was just looking into the Apple watches and wow, the battery life is absolutely horrible. My old series 4 lasts longer than any of the new models specs show. Although it looks like the tradeoff is much faster charging. Now I'm really torn. Haha. Battery life is most important for me, well after the design. I want to be able to wear it all week and charge on the weekend. Mainly so I can track my sleep. All 3 that I mentioned claim that they can do that.”
“I have a different problem. When exercising on a rowing machine after 45 minutes the watch records only 56 kcal and activity for 25 minutes. Watch S4..”
13 Reddit opinions analyzed • Last updated 4/5/2026