Canon - EOS R1 vs Sony - α1 II

The α1 II is the clear pick on raw spec strength, leading by 18.4 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 EOS R1 if you care most about af points. The biggest gaps in its favor are af points.

Pick the α1 II if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight, megapixels, max video.

Both ship with comparable sensor size, in-body stabilization, log profile, so those specs don't separate the two — focus on the differences below.

Bottom line: the α1 II is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.