Amazon Echo Show 21 vs Amazon Echo Show 8 (3rd Gen)

The Amazon Echo Show 21 wins if you want the largest screen, a 21-inch panel versus the 8-inch display on the Amazon Echo Show 8 (3rd Gen). The Show 8 is the better buy for a smaller space and a much lower price.

It is size and placement. The Echo Show 21 is a wall-mounted 21-inch display that doubles as a kitchen or living room TV, while the Echo Show 8 (3rd Gen) is a compact 8-inch unit for a counter, with spatial audio.

Yes. The Echo Show 21 and the Echo Show 8 (3rd Gen) each include a Zigbee coordinator, a Thread border router, and a Matter bridge, so either can control devices on those protocols directly alongside Alexa.

For most rooms, yes. The Echo Show 8 (3rd Gen) costs far less, fits neatly on a counter or shelf, and is praised for spatial audio, delivering the same full hub as the Show 21 without the TV-sized screen.

Buy the Echo Show 21 if you want Amazon's biggest display to replace a kitchen or living room TV via Fire TV, run the family calendar, and control a full Zigbee/Thread/Matter smart home.

Buy the Echo Show 8 (3rd Gen) if you want an affordable, compact smart display with a camera, spatial audio, and a full built-in hub for a kitchen counter or nightstand.