Qi2 is the latest standard for wireless charging. This standard was developed by the Wireless Power Consortium (WPC) and builds upon the earlier Qi technology. The main difference is that a Qi2 charger uses magnetic alignment, ensuring your smartphone is positioned better on the charger. This not only makes charging easier but also more efficient. The original Qi2 standard supports up to 15W wireless charging. Qi2 25W has since been introduced as a faster extension of the standard.