vs
2.9Sound5.5
4.6Build & features6.7
Dimensions
Size comparison
ZeroULT FIELD 1
| Zero | ULT FIELD 1 | Difference | |
|---|---|---|---|
| Height | 35 mm | 77 mm | −42 mm |
| Width | 450 mm | 206 mm | +244 mm |
| Depth | 45 mm | 76 mm | −31 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Zero better than ULT FIELD 1?
Zero has no measurable advantages in this pair.
Why is ULT FIELD 1 better than Zero?
- Battery life4 h vs 12 h3×
- Output power3 W vs 20 W6.7×
- Water resistance (IPx)IPx6 vs IPx7+17%
Specifications
Side by side
| Sound | ||
| Output power | 3 W | 20 W |
| Speaker channels | 1.0 | — |
| Channel count | 1 | — |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Adjustable equaliser | — | Yes |
| Stereo | No | — |
| Battery & charging | ||
| Battery life | 4 h | 12 h |
| Battery capacity | 250 mAh | — |
| Charging time | 1.5 h | — |
| Mains powered | No | No |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | — | 5.3 |
| Bluetooth codecs | SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| USB-C | Yes | Yes |
| Design & build | ||
| Weight | 30 g | — |
| Width | 450 mm | 206 mm |
| Height | 35 mm | 77 mm |
| Depth | 45 mm | 76 mm |
| Protection rating | IPX6 | IP67 |
| Water resistance (IPx) | IPx6 | IPx7 |
| Dust protection (IP) | — | 6 |
| Features | ||
| Hands-free calls | Yes | Yes |
| Party / stereo pairing | — | Yes |









