Why is TAT2139 better than K20i?
- Active noise cancellingYes · K20i: No
Why is K20i better than TAT2139?
- Battery life7 h vs 10 h+43%
- Total with charging case28 h vs 36 h+29%
- Water resistance (IPx)IPx4 vs IPx5+25%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver size | 13 mm | 13 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 16 Ω | 16 Ω |
| Sensitivity | 94 dB | — |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Microphones | — | 2 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 7 h | 10 h |
| Total with charging case | 28 h | 36 h |
| Battery capacity | 50 mAh | — |
| Charging time | 2 h | 2 h |
| Quick charge (claimed) | — | 10 min → 2 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| USB-C | Yes | Yes |
| Low-latency game mode | — | Yes |
| Smart & streaming | ||
| Voice assistant | Google Assistant, Siri | — |
| Companion app | — | Yes |
| Design & build | ||
| Earbud weight (each) | — | 3.3 g |
| Protection rating | IPX4 | IPX5 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Colours | — | Jet Black |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | Yes |
