Samsung may not have increased the Galaxy S26 Ultra’s battery capacity, but it has improved both wired and wireless charging speeds. Now, the reason behind the phone’s faster wireless charging performance has come to light.

WiTS, a South Korean company specializing in wireless power transmission and electronic components, has announced that it supplied its 25W high-power wireless charging receiver module for the Galaxy S26 Ultra. According to the company, the module achieves higher performance through improved heat management and enhanced power stability. It has also been redesigned to be slimmer, allowing it to fit inside thinner smartphones.

A WiTS representative stated that the initial production volume of the Galaxy S26 series is approximately 4.9 million units, with the Galaxy S26 Ultra accounting for about 70% of that total. The company aims to further strengthen its position as a key component supplier for the Galaxy S26 lineup.

WiTS was established in 2019 after acquiring Samsung Electro-Mechanics’ wireless charging business. Given this background, it is not surprising that Samsung continues to source wireless charging modules from WiTS. The company also manufactured Samsung’s 3-in-1 wireless charging stand last year.

While the Galaxy S26 Ultra supports 25W wireless charging, the standard Galaxy S26 remains limited to 15W. The Galaxy S26+ supports up to 20W wireless charging when paired with a compatible charger. Unfortunately, none of them have built-in magnets, and they rely on cases with built-in magnets for Qi2 compatibility.