The Apple Watch Series 8 Aluminum supports 1 codec (SBC). The Karbonn A21 supports 1 codec (SBC).
| Codec |
Apple Watch Series 8 Aluminum
Details | Change |
Karbonn A21
Details | Change |
| aptX LL |
No |
No |
| aptX HD |
No |
No |
| LDAC |
No |
No |
| AAC |
No |
No |
| UHQ |
No |
No |
| aptX |
No |
No |
| SBC |
Yes |
Yes |
| Bluetooth Version |
5.3 |
2.1 |
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