vs
8.8Build & features8.2
Why is Endurance Race 2 better than Rail?
- Battery life12 h vs 9 h+33%
- Water resistance (IPx)IPx8 vs IPx5+60%
- Dust protection (IP)6 vs 5+20%
- Driver size6.8 mm vs 6 mm+13%
Why is Rail better than Endurance Race 2?
Rail has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | 6.8 mm | 6 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 16 Ω | 16 Ω |
| Sensitivity | 104 dB | 100 dB |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | 12 h | 9 h |
| Battery life with ANC | 10 h | — |
| Battery capacity | 70 mAh | — |
| Charging time | 2 h | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.2 |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| Design & build | ||
| Weight | — | 49 g |
| Earbud weight (each) | 12.8 g | — |
| Protection rating | IP68 | IP55 |
| Water resistance (IPx) | IPx8 | IPx5 |
| Dust protection (IP) | 6 | 5 |
| Features | ||
| Hands-free calls | — | Yes |




