PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing.

Xiaomi Mi Air Charge Tech Wirelessly Recharges Multiple Devices Meters Away

Simply walking into a room will start recharging your devices.

 & Matthew Humphries Former Senior Editor

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology.

Our Expert
LOOK INSIDE PC LABS HOW WE TEST
65 EXPERTS
43 YEARS
41,500+ REVIEWS

(Photo: Xiaomi)


Wireless charging removes the need for a cable, but it still requires carefully placing your device on a charging pad. Xiaomi's latest tech promises a much better experience by allowing an entire room to act as a wireless recharging zone.

The tech is called Mi Air Charge, and Xiaomi claims it allows multiple electronic devices to be charged from meters away simultaneously. It uses a combination of 144 antennas and beamforming to accurately detect when a device is in range of the wireless charger and triggers charging to commence using "an extremely narrow millimeter-wide wave beam."

There are, of course, some limitations to this new technology. First of all, charging is limited to 5 watts, but multiple devices can be charged at the same time at that rate. The second limiting factor is the need for an array of "beacon antennas" to be present within the device being recharged. So this isn't going to work with existing devices.

Xiaomi envisions a future where you'll have a Mi Air Charge base station installed in your home and a whole range of compatible devices being recharged without you even thinking about it. Smartphones, smartwatches, fitness bands, even desk lamps and smart speakers could rely on the wireless charger for power.

If this sounds too good to be true, Xiaomi says, "it’s not science fiction, it’s technology." However, we don't yet know when Mi Air Charge devices will be available to purchase or how much they'll cost.

About Our Expert

Matthew Humphries

Matthew Humphries

Former Senior Editor

My Experience

I started working at PCMag in November 2016, covering all areas of technology and video game news. Before that I spent nearly 15 years working at Geek.com as a writer and editor. I also spent the first six years after leaving university as a professional game designer working with Disney, Games Workshop, 20th Century Fox, and Vivendi.

I hold two degrees: a Bachelor's degree in Computer Science and a Master's degree in Games Development. My first book, Make Your Own Pixel Art, is available from all good book shops.

My Areas of Expertise

  • PC components and system building
  • Raspberry Pi
  • Software development
  • Storage technology
  • Video games and gaming hardware

Read full bio