# Amazon Echo Show 21

*Amazon*

> The Echo Show 21 is Amazon's largest Echo Show, a wall-mountable 21-inch display with Fire TV built in. It is a Matter controller and connects Wi-Fi, Thread and Zigbee devices directly. It suits Alexa users, with native support through Matter over Thread.

- Canonical page: https://smarthomecanon.com/devices/amazon-echo-show-21
- Last checked: 2026-10-13

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Amazon](https://smarthomecanon.com/brands/amazon) |
| Category | Smart display |
| Status | withheld |
| Released | withheld |
| Display | withheld |
| Smart home hub | withheld |

## Integration paths

**How the Amazon Echo Show 21 connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter / Thread](https://smarthomecanon.com/protocols/matter-thread) | withheld | unknown | unknown |
| [Zigbee](https://smarthomecanon.com/protocols/zigbee) | withheld | unknown | unknown |

**Platform support for the Amazon Echo Show 21**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter / Thread | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | withheld |  |
| Zigbee | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | withheld |  |

## Roles in a smart home

**Infrastructure roles**

| Role | Acts as one |
| --- | --- |
| Matter controller | withheld |
| Zigbee coordinator | withheld |

## Related pages

- [Echo Show and Echo Hub displays](https://smarthomecanon.com/lines/amazon-echo-displays) (line)
- [Amazon](https://smarthomecanon.com/brands/amazon) (brand)
- [Matter over Thread](https://smarthomecanon.com/protocols/matter-thread) (protocol)
- [Zigbee](https://smarthomecanon.com/protocols/zigbee) (protocol)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)