The aptX HD codec was developed and released before aptX Adaptive. aptX adaptive is backward compatible with aptX HD, and in some cases where a phone supports aptX HD, but not the newer aptX Adaptive the codec shown will be aptX HD.
The aptX HD codec was developed and released before aptX Adaptive. aptX adaptive is backward compatible with aptX HD, and in some cases where a phone supports aptX HD, but not the newer aptX Adaptive the codec shown will be aptX HD.