Galaxy S26 Ultra vs S25 Ultra Speed Test & One UI 8.5 Comparison

Samsung Galaxy S26 Ultra vs Galaxy S25 Ultra speed test showdown running the brand new One UI 8.5 update! Today we put the Snapdragon 8 Elite Gen 5 inside the new S26 Ultra head-to-head against the Snapdragon 8 Gen 4 in the S25 Ultra to see exactly how much faster the new generation is in the real world. In this ultimate real-world speed test, we do a side-by-side app opening race, check RAM management, test heavy mobile gaming boot times (PUBG, Asphalt, and Genshin Impact), and evaluate how One UI 8.5 performance and animation smoothness differ between these two premium flagships. Is it worth upgrading to the Galaxy S26 Ultra for the performance jump, or does the S25 Ultra hold its own? Let's find out! galaxy s26 ultra vs galaxy s25 ultra speed test, samsung galaxy s26 ultra vs s25 ultra, galaxy s26 ultra speed test, s26 ultra vs s25 ultra speed test, one ui 8.5 speed test, galaxy s26 ultra one ui 8.5, samsung s26 ultra vs s25 ultra speed, galaxy s26 ultra vs s25 ultra ram test, snapdragon 8 elite gen 5 vs snapdragon 8 gen 4, samsung galaxy s26 ultra performance, one ui 8.5 features, s26 ultra comparison, tech review, speed test samsung 2026 #GalaxyS26Ultra #GalaxyS25Ultra #OneUI85 #SamsungSpeedTest #S26Ultra #S25Ultra #SamsungGalaxy #Snapdragon8Elite #TechReview #Android16 #SpeedTest #SamsungShowdown #FlagshipPerformance