vs
3.9Battery5.0
Why is RZ-S500W better than CX 400BT True Wireless CX400TW1?
- Driver size8 mm vs 7 mm+14%
Why is CX 400BT True Wireless CX400TW1 better than RZ-S500W?
- Battery life6 h vs 7 h+17%
- Lowest frequency20 Hz vs 5 Hz4×
- aptXNo · RZ-S500W: Yes
- Charging time2 h vs 1.5 h+33%
- Highest frequency20,000 Hz vs 21,000 Hz+5%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 8 mm | 7 mm |
| Number of drivers | 1 | — |
| Lowest frequency | 20 Hz | 5 Hz |
| Highest frequency | 20,000 Hz | 21,000 Hz |
| Sensitivity | — | 107 dB |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Battery & charging | ||
| Battery life | 6 h | 7 h |
| Battery life with ANC | 6 h | — |
| Charging time | 2 h | 1.5 h |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.1 |
| Bluetooth codecs | AAC, SBC | aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | Yes |
| LDAC | No | No |
| USB-C | — | Yes |
| Smart & streaming | ||
| Voice assistant | Alexa, Google Assistant | — |
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | — | 12 g |
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | — |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | — | Yes |
