The Xiaomi Redmi K50 Ultra supports 1 codec (SBC). The vivo X21i supports 5 codecs (aptX HD, LDAC, AAC, aptX, SBC).
| Codec |
Xiaomi Redmi K50 Ultra
Details | Change |
vivo X21i
Details | Change |
| aptX LL |
No |
No |
| aptX HD |
No |
Yes |
| LDAC |
No |
Yes |
| AAC |
No |
Yes |
| UHQ |
No |
No |
| aptX |
No |
Yes |
| SBC |
Yes |
Yes |
| Bluetooth Version |
5.2 |
5.0 |
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