[Google Pixel 6 Pro] ThugEsquire:
Hi team,

If you saw my other thread you'll know that I've not been impressed with the wireless charging speeds the Pixel 6 Pro gets. They advertise a maximum of 12W charging with compatible Qi stands and 23W with their (new, unreleased) wireless charger.

Tl;dr: most wireless chargers won't charge the Pixel 6 Pro at anywhere close to the maximum for any sustained period of time. Even Google's own Pixel Stand (last gen) has issues pushing the full 12W predictably. In comparison, both S21 Ultra and iPhone 13 Mini could consistently pull their respective maximums and were only limited by the maximum advertised rates of the phone/charger manufacturers.

I've since done some experimenting and actual measurements. For each of these measurements, I've ruled out cable/power brick issues by

using the included cable & power brick wherever possible

reproducing the measurement with multiple, high-quality cables

reproducing the measurement with multiple, OEM or otherwise high-quality power bricks

I've also reproduced the measurements with and without cases, and at various battery levels (e.g. <50% charge, etc).

I've also compared what other phones were able to get from these respective chargers, e.g. Samsung S21 Ultra, and iPhone 13 Mini, just to confirm that they were able to pull the expected power from the same chargers. In all cases, for all chargers, the S21 Ultra and iPhone 13 Mini pulled the expected maximum charge rates given whatever the charger could push (and Apple's own restriction of 11W for non-Apple-approved chargers).

Please note, all measurements are approximate since the meters I have are pretty affordable and not high-precision, but they still give a fair idea of what is possible in the real world. Please also note that you should not generally expect peak charge rates when the battery is at 90% charge. Here are my findings for the Pixel 6 Pro's actual wireless charging experience:

Charger make/model	Typical charge range	Maximum charge (observed)	Maximum charge (advertised)	Case sensitivity	Notes
Google Pixel Stand	4.5W - 12W	13W	11W	Medium	The lip is really small, so it's easy to knock the phone off of this stand, especially if you have a case. But it does seem to get the best, most consistent speeds. If you use a case, you may find it complaining about alignment randomly.
Samsung 15W stand (EP-N5200)	3.6W - 5.5W	6.4W	15W	None	Fluctuates a lot; slow to ramp up. Coil does not seem to align perfectly but the phone doesn't complain.
Moshi Sette Q	4.5W - 12W*	15W*	15W on both coils simultaneously (allegedly LOL)	High (hard to align with case, left coil doesn't work at all in many cases)	* These measurements are from the right coil. The left coil simply did not start charging most of the time, and was especially fussy about cases. The right coil worked a lot better with and without cases. If you buy this charger you should immediately test the left coil for functionality.
Samsung 9W Trio charger	4.5W - 5.5W	5.5W	9W	Low (better with case)	The main coils on the Trio charger advertise 9W each simultaneous. Without a case on, the Pixel slowly slips off the charger and out of alignment.

I think the numbers speak for themselves, but you can imagine I'm pretty disappointed in these results. I'd love to find out if anyone's getting a better, more consistent experience with wireless charging on their Pixel 6 Pro, and if so, what charger/case they are using. In short, in terms of wireless charging compatibility and experience, the Pixel 6 Pro is a big step backwards compared to the S21 Ultra.