Samsung didn't reinvent the Ultra, it made the parts outdoor users care about better. The battery jumped 35% to 800mAh, the screen hits 5,000 nits so you can read it in direct sun, and the case is 12% thinner and 26% lighter than the first Ultra. Diving certifications and a Mares dive computer arriving later this year push it past a basic swim tracker. Starts at $699.99.