vs
4.8Sound3.8
6.4Noise control & calls6.9
5.5Battery6.6
6.3Connectivity2.6
Why is Space Q45 better than REAL Blue 2021?
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · REAL Blue 2021: No
- LDACYes · REAL Blue 2021: No
- Bluetooth version5.3 vs 5+6%
Why is REAL Blue 2021 better than Space Q45?
- Battery life50 h vs 55 h+10%
- Lowest frequency20 Hz vs 10 Hz2×
- aptXNo · Space Q45: Yes
- Weight295 g vs 280 g+5%
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Number of drivers | — | 1 |
| Lowest frequency | 20 Hz | 10 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 16 Ω | 18 Ω |
| Sensitivity | — | 102 dB |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | Yes | — |
| Transparency / ambient mode | Yes | Yes |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 50 h | 55 h |
| Battery life with ANC | — | 41 h |
| Battery capacity | — | 700 mAh |
| Charging time | 5 h | — |
| Quick charge (claimed) | 5 min → 4 h | — |
| Fast charging support | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5 |
| Bluetooth codecs | LDAC | aptX, AAC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | No | Yes |
| LDAC | Yes | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | Yes |
| Design & build | ||
| Weight | 295 g | 280 g |
| Foldable | Yes | Yes |
| Colours | Black, White, Blue | — |
| Features | ||
| Hands-free calls | Yes | — |
