vs
5.6Noise control & calls4.9
6.6Battery7.8
Why is TONE Free T90S better than Liberty 4 NC?
- Active noise cancellingYes · Liberty 4 NC: No
- aptXYes · Liberty 4 NC: No
- Charging time2 h vs 3 h+50%
Why is Liberty 4 NC better than TONE Free T90S?
- Battery life9 h vs 10 h+11%
- Total with charging case36 h vs 50 h+39%
- LDACNo · TONE Free T90S: Yes
- Microphones4 vs 6+50%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 11 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | — | 10 Ω |
| Spatial / 3D audio | Yes | — |
| Head tracking | Yes | — |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Adaptive ANC | Yes | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | 4 | 6 |
| Noise reduction for calls | Yes | Yes |
| Battery & charging | ||
| Battery life | 9 h | 10 h |
| Total with charging case | 36 h | 50 h |
| Charging time | 2 h | 3 h |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | aptX Adaptive, AAC, SBC | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | No |
| LDAC | No | Yes |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | Google Assistant, Siri | — |
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | — | 5.2 g |
| Protection rating | — | IPX4 |
| Water resistance (IPx) | — | IPx4 |
| Colours | — | Velvet Black, Clear White, Navy Blue, Pastel Pink, Light Blue |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | — | Yes |
