vs
7.2Noise control & calls9.3
5.3Battery2.8
Why is Free Pro 3 better than RZ-B310WDE-K?
- Battery life7.5 h vs 6 h+25%
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · RZ-B310WDE-K: No
- aptXYes · RZ-B310WDE-K: No
- Battery life with ANC6 h vs 5 h+20%
Why is RZ-B310WDE-K better than Free Pro 3?
RZ-B310WDE-K 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 | Dynamic |
| Driver size | 7 mm | — |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | Yes | — |
| Battery & charging | ||
| Battery life | 7.5 h | 6 h |
| Battery life with ANC | 6 h | 5 h |
| Total with charging case | — | 20 h |
| Battery capacity | — | 40 mAh |
| Charging time | 1.5 h | — |
| Quick charge (claimed) | — | 15 min → 1 h |
| Fast charging support | — | Yes |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | aptX Adaptive, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | Yes | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | — |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Design & build | ||
| Earbud weight (each) | 5 g | — |
| Protection rating | IPX5 | — |
| Water resistance (IPx) | IPx5 | — |
| Colours | — | Black |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | Yes |
