If we look on Samsung's Galaxy S lineage beginning the S6's metal unibody in 2015 to modern AI-powered flagships in 2026, Samsung started a new era when the Galaxy S6 and S6 Edge were unveiled at Mobile World Congress 2015 in Barcelona.
Samsung introduced premium metal-and-glass construction and a dual-curved display that wrapped around the sides for the S6 Edge. Both models rode a 5.1-inch Quad HD panel, carried non-removable batteries (2,550 mAh on the S6 and 2,600 mAh on the S6 Edge), and used a 3GB RAM configuration with storage options of 32/64/128GB, but had no microSD expansion. Samsung installed on phones Exynos 7420 octa-core chip, when Samsung Pay and Knox were among the new features shown at launch.
The phones began shipping all over the world in April 2015. S6 Edge’s curved display design would influence Samsung’s approach to flagship aesthetics. In future year’s Galaxy S7/S7 Edge added such features as water resistance and support of microSD. It was more a signal about a refinement of the Edge concept rather than a new level in the whole strategy. Major OS updates for the S6 family ended by the end of the decade. As a result, it marked the end of official support for those devices.
In current 2026 year, Samsung’s flagship strategy is looking toward the new Galaxy S26 series. Samsung company placed previews on a February - March 2026 reveal and ongoing rumors of lineup restructuring that could affect whole Edge branding. At the same time, Samsung has outlined a whole plan to embed AI capabilities across its entire 2026 smartphone lineup. According to their plans, it will start a new era in which on-device AI and smarter software experiences define flagship experiences.