Charging Modes and Real-World Speed
INIU lists four charging modes: 15W fast charging for LG phones, 10W for Samsung Galaxy, 7.5W for iPhone and 5W standard charging for any other Qi device. The stand picks the mode your phone supports, so the 15W figure applies only to a narrow group of phones. For an iPhone, 7.5W is the most it will deliver, which is fine overnight but noticeably slower than a wired fast charger. At 5W, an older or unsupported phone can take hours to charge fully: one owner with an older Galaxy that only accepts 5W was caught out by how slow a full charge was, and another measured charging well below the advertised rate on a recent Pixel. Others find it charges quickly enough that they are never left waiting, including across newer Galaxy models. Speed also depends on the wall adapter you supply, so an old low-power adapter will hold it back.