Wireless Charging Consortium standard for wireless power transfer, widely used in smartphones.
In plain language
Qi means the device supports wireless charging using the most common standard. If both your phone and charger have the Qi logo, they'll work together. Qi2 is the newer, faster version.
What this marking confirms
Legal compliance
Required by WPC to use the Qi trademark.
Quality
Indicates tested wireless charging interoperability.
Safety
Qi certification includes safety testing for thermal management and foreign object detection.
Is this marking mandatory?
VoluntaryRequired by WPC to use the Qi trademark.
How to obtain this marking
- 1Join WPC
- 2Test product at authorized lab
- 3Pass interoperability and safety tests
- 4Receive Qi certification
How to verify
Search WPC product database at wirelesspowerconsortium.com.
Common errors and misuse
Using Qi mark without WPC certification
Confusing Qi and Qi2
Related standards
wpc-qi-spec