Amazon - Echo Show 10 (3rd gen) vs JBL - Authentics 300

The Authentics 300 is the clear pick on raw spec strength, leading by 13.5 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 Echo Show 10 (3rd gen) if you care most about matter / thread. The biggest gaps in its favor are matter / thread.

Pick the Authentics 300 if you care most about output. Its strongest claims are output.

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

Bottom line: the Authentics 300 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.