Dimensions
Size comparison
Echo Show 21Smart SUB 10
| Echo Show 21 | Smart SUB 10 | Difference | |
|---|---|---|---|
| Height | 340 mm | 160 mm | +180 mm |
| Width | 540 mm | 420 mm | +120 mm |
| Depth | 38 mm | 420 mm | −382 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Echo Show 21 better than Smart SUB 10?
Echo Show 21 has no measurable advantages in this pair.
Why is Smart SUB 10 better than Echo Show 21?
Smart SUB 10 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Output power | — | 200 W |
| Lowest frequency | — | 27 Hz |
| Battery & charging | ||
| Mains powered | Yes | Yes |
| Battery powered (portable) | No | No |
| Connectivity | ||
| Wireless | Yes | Yes |
| Smart & streaming | ||
| Wi-Fi | Yes | — |
| Voice assistant | Alexa | — |
| Voice assistant built in | Yes | Yes |
| Screen | Yes | — |
| Design & build | ||
| Weight | — | 11,800 g |
| Width | 540 mm | 420 mm |
| Height | 340 mm | 160 mm |
| Depth | 38 mm | 420 mm |
| Colours | Black | — |
