vs
3.8Noise control & calls6.9
Why is Hi-X25BT better than REAL Blue 2021?
- Weight270 g vs 280 g+4%
- Highest frequency24,000 Hz vs 20,000 Hz+20%
- Driver size44 mm vs 40 mm+10%
Why is REAL Blue 2021 better than Hi-X25BT?
- Active noise cancellingNo · Hi-X25BT: Yes
- Battery life30 h vs 55 h+83%
- aptXNo · Hi-X25BT: Yes
- Lowest frequency12 Hz vs 10 Hz+20%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 44 mm | 40 mm |
| Number of drivers | — | 1 |
| Lowest frequency | 12 Hz | 10 Hz |
| Highest frequency | 24,000 Hz | 20,000 Hz |
| Impedance | 25 Ω | 18 Ω |
| Sensitivity | 113 dB | 102 dB |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | — | Yes |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 30 h | 55 h |
| Battery life with ANC | — | 41 h |
| Battery capacity | — | 700 mAh |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5 |
| Bluetooth codecs | SBC | aptX, AAC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | Yes |
| LDAC | No | No |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | 270 g | 280 g |
| Foldable | Yes | Yes |
| Colours | Black | — |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | — |
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