The Allview A4 Duo supports 1 codec (SBC). The Xiaomi Redmi K30 5G supports 3 codecs (aptX HD, aptX, SBC).
| Codec |
Allview A4 Duo
Details | Change |
Xiaomi Redmi K30 5G
Details | Change |
| aptX LL |
No |
No |
| aptX HD |
No |
Yes |
| LDAC |
No |
No |
| AAC |
No |
No |
| UHQ |
No |
No |
| aptX |
No |
Yes |
| SBC |
Yes |
Yes |
| Bluetooth Version |
4.0 |
5.1 |
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