The Samsung Galaxy S21 is a series of Android-based smartphones designed, developed, marketed, and manufactured by Samsung Electronics as part of its Galaxy S series. They collectively serve as the successor to the Galaxy S20 series.The lineup comprises three devices, with the Galaxy S21 being the least expensive with a smaller screen size and a (plastic) polycarbonate back. In contrast to the Galaxy S20+, the Galaxy S21+ is very similar to the S21 spec-wise, with the exception of a larger display, higher battery capacity, and back glass instead of plastic. The Galaxy S21 Ultra has an even larger screen size, battery, and a host of other improvements over the other models, including a more advanced camera setup highlighted by its 108 MP main sensor with laser auto-focus and a higher resolution 1440p display. The S21 Ultra is also the first phone in the Galaxy S series to support the S Pen, albeit sold separately and with limited functionality.
"OS: Android 11, One UI 3.1rnNetwork Technology: 5GrnMemory: 512GBrnBody Dimensions: 165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)rnBody Weight: 227 g (8.01 oz)rnDisplay Type: Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)rnDisplay Size: 6.8 inches, 112.1 cm2rnDisplay Resolution: 1440 x 3200 pixels, 20:9 ratiornBattery Type: Li-Ion 5000 mAh, non-removablern"