vs
5.8Noise control & calls7.2
8.7Battery7.8
Why is Air Pro 4 better than Tune Flex 2 Ghost Edition?
- Total with charging case52 h vs 24 h2.2×
- Water resistance (IPx)IPx5 vs IPx4+25%
- Highest frequency40,000 Hz vs 20,000 Hz2×
Why is Tune Flex 2 Ghost Edition better than Air Pro 4?
- Battery life11 h vs 12 h+9%
- Battery life with ANC7.5 h vs 8 h+7%
- Driver size10 mm vs 12 mm+20%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 10 mm | 12 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 40,000 Hz | 20,000 Hz |
| Impedance | — | 13 Ω |
| Sensitivity | — | 98 dB |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | Yes | — |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 6 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 11 h | 12 h |
| Battery life with ANC | 7.5 h | 8 h |
| Total with charging case | 52 h | 24 h |
| Battery capacity | 54 mAh | — |
| Charging time | 1 h | — |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | LDAC, aptX Lossless, aptX | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | — |
| aptX | Yes | — |
| LDAC | Yes | — |
| Multipoint (two devices) | Yes | — |
| LE Audio | Yes | — |
| Auracast | Yes | — |
| USB-C | Yes | — |
| Latency | 50 ms | — |
| Low-latency game mode | Yes | — |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant |
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 5.2 g | — |
| Protection rating | IPX5 | IP54 |
| Water resistance (IPx) | IPx5 | IPx4 |
| Dust protection (IP) | — | 5 |
| Features | ||
| Touch controls | Yes | — |
| Wear detection (auto pause) | Yes | — |
| Hands-free calls | Yes | — |
