vs
4.8Noise control & calls3.1
3.6Battery3.2
Why is HA-Z66T better than Redmi Buds 4?
- Battery life7 h vs 6 h+17%
Why is Redmi Buds 4 better than HA-Z66T?
Redmi Buds 4 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Semi-open | Semi-open |
| Driver type | Dynamic | Dynamic |
| Noise control | ||
| Active noise cancelling | No | No |
| Transparency / ambient mode | Yes | — |
| Battery & charging | ||
| Battery life | 7 h | 6 h |
| Total with charging case | 23 h | — |
| Charging time | — | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.1 | 5.2 |
| Bluetooth codecs | — | AAC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Design & build | ||
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | — |
| Features | ||
| Touch controls | Yes | — |



