The Apple Watch Edition Series 7 supports 1 codec (SBC). The Xiaomi Mi 9X supports 3 codecs (aptX HD, aptX, SBC).
| Codec | Apple Watch Edition Series 7 Details | Change |
Xiaomi Mi 9X 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 | 5.0 | 5.0 |
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