Samsung Galaxy S20 vs Samsung Galaxy S21

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Galaxy S20 compared with Galaxy S21

	SamsungGalaxy S20	SamsungGalaxy S21
Overview
Released
Released	March 2020	January 2021
Display
Screen size
Screen size	6.2″	6.2″
Resolution
Resolution	3200 × 1440 (better)	2400 × 1080
Sharpness
Sharpness	566 pixels per inch (better)	424 pixels per inch
Panel
Panel	OLED	OLED
Refresh rate
Refresh rate	120 Hz	120 Hz
Display type
Display type	Quad HD+ Dynamic AMOLED 2X Infinity-O Display (3,200 × 1,440), HDR10+ certified; 120 Hz supported at up to FHD+ (60 Hz by default); 6.2 inches as a full rectangle, 6.1 inches with rounded corners	Flat FHD+ Dynamic AMOLED 2X Infinity-O Display (2,400 × 1,080), HDR10+ certified; adaptive 120 Hz (48–120 Hz); 6.2 inches as a full rectangle, 6.1 inches with rounded corners
Pixel density
Pixel density	563 ppi (Samsung)	421 ppi
Brightness detail
Brightness detail	Up to 1,200 nits peak (Samsung)	1,300 nits peak
Screen protection
Screen protection	Corning Gorilla Glass 6 front and back (Corning)	Corning Gorilla Glass Victus front
Display features
Display features	–	Eye Comfort Shield
Performance
Chip
Chip	Exynos 990	Exynos 2100
Memory
Memory	8 GB – 12 GB (better)	8 GB
Storage
Storage	128 GB	128 GB, 256 GB (better)
CPU
CPU	7 nm, 64-bit octa-core, 2.73 GHz + 2.5 GHz + 2 GHz; 8 GB of LPDDR5 RAM (4G) or 12 GB (5G)	5 nm, 64-bit octa-core, 2.9 GHz + 2.8 GHz + 2.2 GHz; 8 GB of LPDDR5 RAM
Storage type
Storage type	128 GB (104 GB available); microSD card slot up to 1 TB (shared with the second SIM)	128 or 256 GB; no microSD slot
Cameras
Main camera
Main camera	12 MP	12 MP
Ultra wide camera
Ultra wide camera	12 MP	12 MP
Telephoto camera
Telephoto camera	64 MP	64 MP
Optical zoom
Optical zoom	1.06×	1.1× (better)
Front camera
Front camera	10 MP	10 MP
Main camera
Main camera	12 MP wide-angle, F1.8, 79°, Super Speed Dual Pixel AF, OIS	12 MP wide-angle, Dual Pixel AF, OIS, F1.8, 1.8 µm, 79°
Ultra wide camera
Ultra wide camera	12 MP, F2.2, 120°	12 MP fixed focus, F2.2, 1.4 µm, 120°
Telephoto camera
Telephoto camera	64 MP, F2.0, 76°, PDAF, OIS; approximately 1.06x optical zoom (Notebookcheck)	64 MP, phase detection AF, OIS, F2.0, 0.8 µm, 76°; 1.1x optical zoom (MobileSyrup)
Front camera
Front camera	10 MP, Dual Pixel AF, F2.2, 80°	10 MP Dual Pixel AF, F2.2, 1.22 µm, 80°
Zoom
Zoom	Hybrid Optic Zoom 3x; Space Zoom (digital) up to 30x	3x Hybrid Optic Zoom; 30x Space Zoom
Video recording
Video recording	8K (7,680 × 4,320) at 24 fps; 4K at 60 fps; up to 960 fps super slow motion at HD resolution	8K at 24 fps; 4K at 60 fps
Camera features
Camera features	Single Take; Night mode; Super Steady video	–
Battery and charging
Battery
Battery	4,000 mAh	4,000 mAh
Video playback (maker's claim)
Video playback (maker's claim)	–	Up to 20 hours
Wired charging
Wired charging	Up to 25 W	Up to 25 W
Wireless charging
Wireless charging	Yes (wattage not published)	Up to 15 W
Battery life detail
Battery life detail	4,000 mAh typical, 3,880 mAh rated; internet use up to 14 hours (LTE) or 15 hours (Wi-Fi); talk time up to 20 hours (4G)	4,000 mAh typical, 3,880 mAh rated; wireless video playback up to 20 hours; internet use up to 14 hours (LTE) or 15 hours (Wi-Fi); talk time up to 33 hours (4G)
Wired charging
Wired charging	25 W fast charger included; compatible with QC2.0 and AFC	USB PD 3.0 (PPS) fast charging, AFC and QC2.0 compatible; up to 25 W
Wireless charging
Wireless charging	Fast Wireless Charging 2.0 with chargers of 10 W or more (WPC)	Fast Wireless Charging 2.0 (WPC); up to 15 W
Charges other devices
Charges other devices	Wireless PowerShare	Wireless PowerShare
Design
Type
Type	Standard	Standard
Weight
Weight	163 g (better)	169 g
Thickness
Thickness	7.9 mm	7.9 mm
Height × width
Height × width	151.7 × 69.1 mm	151.7 × 71.2 mm
Water and dust resistance
Water and dust resistance	IP68	IP68
Materials
Materials	Gorilla Glass 6 front and back with a metal frame	Metal frame with Contour Cut camera housing; Deluxe Frosted Haze matte finish
Colours
Colours	Cosmic Grey, Cloud Blue, Cloud Pink	Phantom Violet, Phantom Grey, Phantom Pink, Phantom White
Water resistance detail
Water resistance detail	IP68, up to 1.5 m for 30 minutes	IP68, up to 1.5 m of fresh water for up to 30 minutes; not advised for beach or pool use
Biometrics
Biometrics	Ultrasonic in-screen fingerprint sensor, face recognition	Ultrasonic in-screen fingerprint sensor, face recognition
Sensors
Sensors	Ultrasonic fingerprint, accelerometer, barometer, gyro, geomagnetic, Hall, proximity, RGB light	Ultrasonic fingerprint, accelerometer, barometer, gyro, geomagnetic, Hall, proximity, ambient light
Speakers
Speakers	Stereo speakers and earphones sound by AKG; Dolby Atmos	Stereo speakers; UHQ 32-bit and DSD64/128 playback
Software
Operating system
Operating system	Android	Android
Software at launch
Software at launch	Android 10	Android 11
Connectivity
Mobile network
Mobile network	5G model: 5G Sub6 (NSA, SA, DSS); both models: LTE Cat 20 (up to 2.0 Gbps down, 200 Mbps up), 4×4 MIMO, up to 7CA, LAA	5G (NSA, SA), Sub6
SIM
SIM	Hybrid dual SIM (nano-SIM plus nano-SIM or microSD) and eSIM	Nano-SIM and eSIM
Wi-Fi
Wi-Fi	Wi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 and 5 GHz, HE80, MIMO, 1024-QAM	Wi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 and 5 GHz, HE80, MIMO, 1024-QAM
Bluetooth
Bluetooth	Bluetooth 5.0; ANT+	Bluetooth 5.0
NFC
NFC	Yes	Yes
USB
USB	USB Type-C; no 3.5 mm headphone jack	USB Type-C, USB 3.2 Gen 1; DisplayPort output up to 4K at 60 fps
Positioning
Positioning	GPS, Galileo, Glonass, BeiDou	GPS, Galileo, Glonass, BeiDou