OnLeaks and Smartprix say that the S25 Slim’s camera system will include a 200MP main camera, a 50MP ultrawide camera, and a 50MP telephoto lens with 3.5X optical zoom. The telephoto lens will apparently have a special design:

Press photos showing the Galaxy S25 Ultra and Galaxy S25 leak before next week's Unpacked launch event confirming the smartphones' design.

The tipster claims that the battery capacities of the iPhone 17 Air and Galaxy S25 Slim will be between 3,000mAh to 4,000mAh, give or take. While this is a disappointing revelation, it’s not a huge surprise that Samsung and Apple would go with smaller batteries.