vs
9.3Noise control & calls5.8
9.1Battery8.0
8.8Build & features9.4
Why is Endurance Race 2 better than Sport X20?
- Battery life with ANC10 h vs 7 h+43%
- Charging time2 h vs 3 h+50%
Why is Sport X20 better than Endurance Race 2?
- Earbud weight (each)12.8 g vs 6.5 g+97%
- Driver size6.8 mm vs 11 mm+62%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | Dynamic |
| Driver size | 6.8 mm | 11 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 16 Ω | 16 Ω |
| Sensitivity | 104 dB | — |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | — | Yes |
| Transparency / ambient mode | — | Yes |
| Microphones | — | 6 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 12 h | 12 h |
| Battery life with ANC | 10 h | 7 h |
| Total with charging case | — | 48 h |
| Battery capacity | 70 mAh | — |
| Charging time | 2 h | 3 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 |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| Design & build | ||
| Earbud weight (each) | 12.8 g | 6.5 g |
| Protection rating | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Dust protection (IP) | 6 | 6 |
| Colours | — | Black, White, Green |
| Features | ||
| Hands-free calls | — | Yes |
