Apple - Watch SE 3 vs Apple - Watch Ultra 2

The Watch Ultra 2 edges ahead on the Mars Score (56.1 vs 60.5), but the 4.4-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Watch SE 3 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight.

Pick the Watch Ultra 2 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are peak brightness, battery life, display size, among others.

Both ship with comparable cellular, so those specs don't separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.