Why is Up better than P31i?
Up has no measurable advantages in this pair.
Why is P31i better than Up?
- Active noise cancellingNo · Up: Yes
- Battery life6 h vs 10 h+67%
- Total with charging case24 h vs 50 h2.1×
- Hi-res codec (LDAC / aptX HD / LHDC)No · Up: Yes
- Water resistance (IPx)IPx4 vs IPx5+25%
- LDACNo · Up: Yes
- Bluetooth version5.3 vs 6.1+15%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Open-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 40,000 Hz |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Adaptive ANC | — | Yes |
| Noise reduction (claimed) | — | 52 dB |
| Microphones | — | 6 |
| Noise reduction for calls | Yes | Yes |
| Battery & charging | ||
| Battery life | 6 h | 10 h |
| Battery life with ANC | — | 40 h |
| Total with charging case | 24 h | 50 h |
| Charging time | 4 h | — |
| Quick charge (claimed) | — | 10 min → 3,5 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 6.1 |
| Bluetooth codecs | AAC, SBC | LDAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | Yes |
| aptX | No | No |
| LDAC | No | Yes |
| Multipoint (two devices) | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Protection rating | IPX4 | IP55 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Dust protection (IP) | — | 5 |
| Colours | Black | Midnight Black, Pearl White, Light Blue, Rose Gold |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
