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Displays · Head to head

Amazon Echo Show 15 (2nd Gen) vs Amazon Echo Show 21

Full Smart Displays comparison in 2026

Updated September 2026
Data from Amazon.
2026 verdict
Amazon Echo Show 21 edges the Amazon Echo Show 15 on one thing only, a bigger screen: 21 inches against 15.6, both at 1920 x 1080.
Amazon Echo Show 21
Winner
Amazon Echo Show 21
$349.99$499.9930% OFF
Buy on Amazon USACheck price
Everything else is the same recipe, launched together in 2024: a camera with a physical shutter, a motion sensor, 2.4, 5 and 6 GHz Wi-Fi, a wall mount, Alexa, built-in Fire TV and a Zigbee coordinator, Thread border router and Matter bridge. The Amazon Echo Show 15 is the more affordable of the two, weighs 2250 g instead of nearly twice that, and packs the same pixels into a smaller panel, so it looks sharper up close. Choose the Amazon Echo Show 21 for a large kitchen or living area where people watch from across the room, and the Amazon Echo Show 15 for a smaller wall, a narrower space or a noticeboard you read from arm's length.
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FeatureAmazon Echo Show 15 (2nd Gen)Amazon Echo Show 21Winner
Price$249.99$349.99Amazon Echo Show 15 (2nd Gen)
Screen Size15.6"21"Amazon Echo Show 21
Rating4.44.4Tie
Warranty1 year1 yearTie
Connectivity2.4 GHz WiFi, 5 GHz WiFi, 6 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFi, 6 GHz WiFi, BluetoothTie
IntegrationsAlexa, Home AssistantAlexa, Home AssistantTie
HubZigbee Coordinator, Thread Border Router, Matter BridgeZigbee Coordinator, Thread Border Router, Matter BridgeTie
Voice AssistantAmazon AlexaAmazon AlexaTie
CameraYESYESTie
SensorsMotion, Ambient LightMotion, Ambient LightTie

What the differences mean

Screen size

21 inches against 15.6, both Full HD. The Amazon Echo Show 21 is easier to watch from across a large room; the Amazon Echo Show 15 packs the same 1920 x 1080 pixels into a smaller panel, so text and photos look crisper from close up.

Size on the wall

The Amazon Echo Show 15 measures 400 x 250 x 35 mm and weighs 2250 g. The Amazon Echo Show 21 measures 540 x 350 x 38 mm and weighs more than twice as much, so measure the wall and the counter before choosing.

Everything else

No difference in camera, sensors, Wi-Fi bands, hub roles, Alexa or Fire TV. Buying the bigger one gets you more screen, not more features.

Which one to buy if

What owners say

Owners of both big Echo Shows describe the same device in two sizes: a household command center with widgets for calendars and lists, built-in Fire TV good enough to replace a kitchen TV, and a favourite Ring camera view on the big screen. Both groups also criticise the same things, namely Alexa+ feeling unfinished and not working in portrait orientation, and ads on the home screen until they are turned off. The contrast is in sound and polish. Amazon Echo Show 15 owners describe the sound as surprisingly good for its size, and many long-time Echo users call it the best Echo they have owned. Amazon Echo Show 21 owners praise a screen readable across the room and a photo frame that looks like art, but call the built-in sound only okay, often add a soundbar, and report updates that broke features such as album art and the back button.

Upgrading from the Amazon Echo Show 15 (2nd Gen)?

Moving from the Amazon Echo Show 15 to the Amazon Echo Show 21 buys screen area and nothing else: the resolution stays at 1920 x 1080, and the camera, sensors, Wi-Fi, Fire TV, Alexa and the Zigbee, Thread and Matter hub are identical. If your Amazon Echo Show 15 is readable from where you usually stand, there is no reason to change. Upgrade only if the display has become the room's TV and you watch it from a distance, and make sure the wall has room for a 540 x 350 mm panel.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Amazon Echo Show 15 (2nd Gen)
  • Amazon Echo Show 21

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Frequently Asked Questions

Echo Show 15 vs 21: which is better, the Amazon Echo Show 15 or the Amazon Echo Show 21?

The Amazon Echo Show 21 if you want the biggest screen, at 21 inches. Otherwise they are the same device: the Amazon Echo Show 15 has identical features on a 15.6-inch screen, is lighter and costs less.

What is the difference between the Amazon Echo Show 15 and the Amazon Echo Show 21?

Only the size. The Amazon Echo Show 21 has a 21-inch screen and the Amazon Echo Show 15 a 15.6-inch one, both at 1920 x 1080. Camera, sensors, Wi-Fi including 6 GHz, Fire TV, Alexa and the Zigbee, Thread and Matter hub are the same.

How do the Amazon Echo Show 15 and the Amazon Echo Show 21 compare in size?

The Amazon Echo Show 15 measures 400 x 250 x 35 mm and weighs 2250 g. The Amazon Echo Show 21 measures 540 x 350 x 38 mm and weighs more than twice as much.

Were the Amazon Echo Show 15 and the Amazon Echo Show 21 released at the same time?

Yes, the Amazon Echo Show 15 and the Amazon Echo Show 21 are both 2024 models, and they share the same features in two different sizes.

Who should buy the Amazon Echo Show 15?

Alexa households that want a wall-mounted family hub and kitchen TV for a normal-sized wall, with a sharp screen for calendars and lists at a lower cost than the larger model.

Who should buy the Amazon Echo Show 21?

Homes with a large kitchen or open living area where the display doubles as the main TV and needs to be readable from across the room.

Full comparison table

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