S21 Ultra 5G: Dimensions:165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in). Weight:227 g (Sub6), 229 g (mmWave) (8.01 oz). SIM:Nano-SIM. Display Type:Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak). Size:6.8 inches. Resolution:1440 x 3200 pixels, 20:9 ratio (~515 ppi density). OS:Android. Internal:128GB 12GB RAM. Features:Dual video call, Auto-HDR. Battery Type:Li-Ion 5000 mAh, non-removable.