Sonos - Era 300 vs Sonos - Symfonisk Bookshelf (Gen 2)

These two are evenly matched on the broad strokes, with the decision sitting on which individual spec advantages weigh more for your use.

Pick the Era 300 if you care most about dolby atmos and matter / thread. The biggest gaps in its favor are dolby atmos, matter / thread.

The Symfonisk Bookshelf (Gen 2) similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.

Both ship with comparable output, 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.