S21s

The Samsung Galaxy S21 series, often referred to as the S21s, is Samsung Electronics’ flagship line released in January 2021 as the successor to the Galaxy S20 lineup. It comprises three models: Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra. The family emphasizes high-refresh displays, strong performance, 5G connectivity, and advanced camera capabilities, with regional variations in chipset and features.

Design and display: The Galaxy S21 and S21+ feature 6.2-inch and 6.7-inch Dynamic AMOLED 2X displays with 1080p resolution and up to 120 Hz adaptive refresh. They use a plastic back (often described as glasstic) with an aluminum frame, while the S21 Ultra has a glass back and a larger, more prominent camera array. All models employ a centered front-facing camera cutout and Gorilla Glass on the front.

Performance and storage: In the United States, the S21 family uses the Snapdragon 888 processor; in other regions, the Exynos 2100. All models support 5G and Wi‑Fi 6. Storage options include 128 GB and 256 GB, with no microSD expansion. RAM varies by model and region, with the Ultra offering higher-end configurations. The devices are IP68 rated for water and dust resistance.

Cameras: The S21 and S21+ have a triple camera system featuring a 12 MP main sensor, a 12 MP ultrawide, and a 64 MP telephoto lens. The S21 Ultra adds a 108 MP main sensor, a 12 MP ultrawide, and two 10 MP telephotos with 3x and 10x optical zoom, delivering up to around 100x “Space Zoom.”

Battery and software: Battery capacities are approximately 4000 mAh (S21), 4800 mAh (S21+), and 5000 mAh (S21 Ultra), with wired and wireless charging and, on the Ultra, Wireless PowerShare. The line launched with Android 11 and One UI and received subsequent updates to newer Android versions and One UI. The S21 series was positioned as a high-end option competing with other premium flagships through 2021 and beyond.