Updated October 2026
Data from the official Amazon site.
2026 verdict
Do you want a wall-sized TV, or a smart kitchen screen?
The Amazon Echo Show 8 (2025) is the better buy for the second job, undercutting the Amazon Echo Show 21 on price and packing a fuller sensor bar, ambient temperature and light alongside motion, that the giant display leaves out. The Amazon Echo Show 21 meets that with a genuinely different scale: a 21-inch Full HD panel built to double as a Fire TV and stay readable from across a room, plus the higher owner rating of the two. Connectivity, the Zigbee, Thread and Matter hub inside, platform integrations and the camera are all evenly matched, so neither has a clear edge on smart-home reach alone. Kitchens and living rooms that want one screen to also replace a TV should look at the Amazon Echo Show 21; anyone who wants a compact, sensor-rich display without paying for all that extra glass should pick the Amazon Echo Show 8 (2025).
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| Feature | Amazon Echo Show 21 | Amazon Echo Show 8 (2025) | Winner |
|---|---|---|---|
| Price | $499.99 | $199.99 | Amazon Echo Show 8 (2025) |
| Rating | 4.4 | 4.2 | Amazon Echo Show 21 |
| Screen Size | 21" | 8.7" | Amazon Echo Show 21 |
| Sensors | Motion, Ambient Light | Motion, Temperature, Ambient Light | Amazon Echo Show 8 (2025) |
| Warranty | 1 year | 1 year | Tie |
| Connectivity | 2.4 GHz WiFi, 5 GHz WiFi, 6 GHz WiFi, Bluetooth | 2.4 GHz WiFi, 5 GHz WiFi, 6 GHz WiFi, Bluetooth | Tie |
| Integrations | Alexa, Home Assistant | Alexa, Home Assistant | Tie |
| Hub | Zigbee Coordinator, Thread Border Router, Matter Bridge | Zigbee Coordinator, Thread Border Router, Matter Bridge | Tie |
| Voice Assistant | Amazon Alexa | Amazon Alexa | Tie |
| Camera | YES | YES | Tie |
| Local Control | NO | NO | Tie |
$499.99
- + Rating: 4.4
- + Screen Size: 21"
- - Price: $499.99 vs $199.99
- - Sensors: Motion, Ambient Light vs Motion, Temperature, Ambient Light
Winner
$199.99
- + Price: $199.99
- + Sensors: Motion, Temperature, Ambient Light
- - Rating: 4.2 vs 4.4
- - Screen Size: 8.7" vs 21"
Frequently Asked Questions
Which is better overall: Amazon Echo Show 8 (2025) or Amazon Echo Show 21?
Amazon Echo Show 8 (2025) has the overall edge on price and a fuller sensor bar. Amazon Echo Show 21 answers with a higher owner rating and a vastly larger 21-inch screen built to double as a TV.
What is the biggest difference between Amazon Echo Show 8 (2025) and Amazon Echo Show 21?
Scale and purpose. The Echo Show 21 is a wall-sized panel with built-in Fire TV, meant to replace a kitchen or living room TV as well as run smart home routines. The Echo Show 8 (2025) is a compact counter display sized for one person cooking or making a call.
Can the Amazon Echo Show 21 replace a TV?
Yes, that is one of its main selling points. It bundles Fire TV so it streams the major apps and live TV on its 21-inch Full HD screen, which owners commonly use in place of a separate kitchen television.
Which one has more sensors?
The Amazon Echo Show 8 (2025), which reads motion, ambient temperature and ambient light. The Amazon Echo Show 21 only detects motion.
Who should buy Amazon Echo Show 8 (2025)?
Choose Amazon Echo Show 8 (2025) for a compact, sensor-rich kitchen or bedside display at a lower price, without paying for a screen you do not need.
Who should buy Amazon Echo Show 21?
Choose Amazon Echo Show 21 for a wall-sized display that also works as a family TV, accepting the higher price and a shorter sensor list.
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