Apple Watch Series 7 (41mm) vs Apple Watch SE 3 (40mm) GPS + LTE

The SE 3 is the newer watch and the better buy for most people. It has a faster S10 chip, 64GB of storage, an always-on display, sleep apnea notifications, a temperature sensor and built-in cellular, so it works without your phone. The Series 7 has the ECG app and blood oxygen readings, which the SE 3 lacks, and its 41mm case sits slightly larger on the wrist. Owners praise both for comfort and reliability; the Series 7 is now a 2021 design on older silicon, while the SE 3 carries current internals and longer software support.

• Choose the Apple Watch Series 7 if you want ECG and blood oxygen readings and a slightly bigger 41mm screen.
• Choose the Apple Watch SE 3 if you want the newest chip, cellular built in, sleep apnea alerts and the longest software support.