Apple - Watch Ultra 3 vs Samsung - Galaxy Watch 7 Pro

The Watch Ultra 3 is the clear pick on raw spec strength, leading by 13.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Watch Ultra 3 if you care most about display size. The biggest gaps in its favor are display size.

Pick the Galaxy Watch 7 Pro 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 battery life, weight.

Both ship with comparable ecg, cellular, spo2, so those specs don't separate the two — focus on the differences below.

Bottom line: the Watch Ultra 3 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.