The vivo X21 UD supports 5 codecs (aptX HD, LDAC, AAC, aptX, SBC). The Samsung Gear S2 3G supports 1 codec (SBC).
| Codec |
vivo X21 UD
Details | Change |
Samsung Gear S2 3G
Details | Change |
| aptX LL |
No |
No |
| aptX HD |
Yes |
No |
| LDAC |
Yes |
No |
| AAC |
Yes |
No |
| UHQ |
No |
No |
| aptX |
Yes |
No |
| SBC |
Yes |
Yes |
| Bluetooth Version |
5.0 |
4.1 |
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