As a reminder, all new iPhones support wireless charging, but as of iOS 11.1.1, which is the latest official software, only 5W Qi wireless chargers are supported. Although the added support for 7.5W Qi charging won’t introduce a dramatically quicker wireless charging experience, the evidence points out that users should expect marginally improved charging speeds.
As MacRumors points out, an iPhone X running the iOS 11.2 beta got charged from 46% to 66% by a 7.5W Belkin wireless charger in about 30 minutes. Using a non-7.5W wireless charger topped the same iPhone X from 46% to 60% in over 30 minutes, which speaks of marginal gains here and there, but gains nonetheless.
Still, that ramp up to 7.5W is barely touching the current limits of the Qi wireless charging technology, which allows for up to 15W of power to be transmitted to compatible devices. Needless to say this charges their batteries faster and is overall a user-friendly trait that Apple will likely catch up on sometime in the future provided that the hardware inside the all-new trio of 2017 iPhones allows it. No one wants another Note 7 debacle, especially when a $1,000 animoji machine is involved.
No word when iOS 11.2 is coming along to an iPhone near you, but it shouldn’t take long.
Source of news : Phonearena