The Galaxy S25 and Galaxy S25+’s wired charging speeds information were spotted on China’s 3C certification website.
Samsung Galaxy S25, S25+ charging speeds
According to the 3C listing, the SM-S9360 model (believed to be Galaxy S25+) sports 45W (15.0VDC, 3.0A) charging capability and the SM-S9310 (believed to be Galaxy S25) has a 25W (9.0VDC, 2.77A) charging speed.
If you recall, the Galaxy S24+ also sports 45W wired charging speed and Galaxy S24 features 25W charging capability.
So, as mentioned already, Samsung seems to be sticking to the same playbook as the Galaxy S24 series, Galaxy S23 series, and Galaxy S22 series. The S21+ supported only up to 25W wired charging and starting Galaxy S22 lineup, it has stayed unchanged.