The alcatel 3 supports 5 codecs (aptX HD, LDAC, AAC, aptX, SBC). The Apple Watch Series 2 42mm supports 2 codecs (AAC, SBC).
| Codec | alcatel 3 Details | Change |
Apple Watch Series 2 42mm Details | Change |
|---|---|---|
| aptX LL | No | No |
| aptX HD | Yes | No |
| LDAC | Yes | No |
| AAC | Yes | Yes |
| UHQ | No | No |
| aptX | Yes | No |
| SBC | Yes | Yes |
| Bluetooth Version | 4.2 | 4.0 |
Comments