Why is Vibe Flex better than HP-C28BT?
Vibe Flex has no measurable advantages in this pair.
Why is HP-C28BT better than Vibe Flex?
- Charging time2 h vs 1.5 h+33%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver type | — | Dynamic |
| Driver size | — | 6.1 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | — | 16 Ω |
| Sensitivity | — | 90 dB |
| Noise control | ||
| Active noise cancelling | No | — |
| Battery & charging | ||
| Battery life | — | 3.5 h |
| Charging time | 2 h | 1.5 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.3 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | — | 3 g |
| Protection rating | IP54 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | 5 | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
