TL;DR
- Android 15 is preparing to tweak the threshold that determines whether a charger is seen as fast, from a measly 7.5W to a more reasonable 20W.
- The operating system has long considered any charging speeds of at least 7.5W to be fast, which is far, far below what actual fast chargers can deliver nowadays.
- The change isn’t live yet in the latest Android 15 beta, though, so chargers that deliver 7.5W of power will still be seen as fast on Pixels.
Fast, normal, and slow are not clear either, I think. We see here that the “fast” term needs to evolve because it probably feels pretty slow now. Wattages are pretty clear reference points when users come to understand what they mean, especially over time.
Expecting the average user to understand numbers is a high expectation