The Apple Watch Ultra supports 1 codec (SBC). The Apple Watch Series 2 42mm supports 2 codecs (AAC, SBC).
| Codec |
Apple Watch Ultra
Details | Change |
Apple Watch Series 2 42mm
Details | Change |
| aptX LL |
No |
No |
| aptX HD |
No |
No |
| LDAC |
No |
No |
| AAC |
No |
Yes |
| UHQ |
No |
No |
| aptX |
No |
No |
| SBC |
Yes |
Yes |
| Bluetooth Version |
5.3 |
4.0 |
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