The Allview X4 Xtreme supports 1 codec (SBC). The vivo V9 Youth supports 5 codecs (aptX HD, LDAC, AAC, aptX, SBC).
| Codec |
Allview X4 Xtreme
Details | Change |
vivo V9 Youth
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 |
4.0 |
4.2 |
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