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Galaxy S20 5G vs Galaxy S21 5G

Samsung Galaxy S20 5G vs Samsung Galaxy S21 5G

What Galaxy S20 5G does better (6) and where Galaxy S21 5G wins (4) — every spec side by side.

Samsung · 2020Galaxy S20 5G

8.0Score

6 advantages≈ $170

Higher score

Samsung · 2021Galaxy S21 5G

7.9Score

4 advantages≈ $185

7.7Display7.7

7.9Camera7.9

3.8Battery3.8

9.5Features9.4

Dimensions

Size comparison

Galaxy S20 5GGalaxy S21 5G

	Galaxy S20 5G	Galaxy S21 5G	Difference
Height	151.7 mm	151.7 mm	=
Width	69.1 mm	71.2 mm	−2.1 mm
Thickness	7.9 mm	7.9 mm	=
Weight	163 g	169 g	−6 g

Drawn to the same scale from the official dimensions (front and side).

Why is Galaxy S20 5G better than Galaxy S21 5G?

RAM12 GB vs 8 GB+50%
Pixel density563 ppi vs 421 ppi+34%
Memory card slotYes · Galaxy S21 5G: No
Weight163 g vs 169 g+4%
Resolution (width)1,440 px vs 1,080 px+33%
Screen-to-body ratio89.5% vs 87.2%+3%

Why is Galaxy S21 5G better than Galaxy S20 5G?

Storage (max)128 GB vs 256 GB2×
Peak brightness1,200 nits vs 1,300 nits+8%
CPU frequency2.84 GHz vs 2.9 GHz+2%
Process7 nm vs 5 nm+40%

Specifications

Side by side

Only differences	Samsung Galaxy S20 5G≈ $1708.0	Samsung Galaxy S21 5G≈ $1857.9
Design
Weight	163 g	169 g
Thickness	7.9 mm	7.9 mm
Height	151.7 mm	151.7 mm
Width	69.1 mm	71.2 mm
Frame	Aluminium	Aluminium
Back	Glass	Plastic
Ingress protection	IP68	IP68
Water resistance (IPx)	IPx8	IPx8
Glass protection	Corning Gorilla Glass 6	Corning Gorilla Glass Victus
Colours	Cosmic Grey, Cloud Blue, Cloud Pink, Cloud White, Aura Red	Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
Display
Screen size	6.2″	6.2″
Panel	Dynamic AMOLED 2X	Dynamic AMOLED 2X
OLED panel	Yes	Yes
Resolution (width)	1,440 px	1,080 px
Resolution (height)	3,200 px	2,400 px
Pixel density	563 ppi	421 ppi
Refresh rate	120 Hz	120 Hz
Peak brightness	1,200 nits	1,300 nits
Measured brightness	—	856 nits
Screen-to-body ratio	89.5%	87.2%
HDR	Yes	Yes
Performance
Chipset	Exynos 990 - Global	Exynos 2100 - International
Chip maker	Qualcomm	Qualcomm
Process	7 nm	5 nm
CPU cores	8	8
CPU frequency	2.84 GHz	2.9 GHz
GPU	Mali-G77 MP11 - Global Adreno 650 - USA	Mali-G78 MP14 - International Adreno 660 - USA/China
AnTuTu score	—	584,055
Geekbench 6 (multi-core)	—	3,238
3DMark Wild Life Extreme	—	1,800
Memory
RAM	12 GB	8 GB
Storage (max)	128 GB	256 GB
Storage (base)	128 GB	128 GB
Storage type	UFS 3.0	UFS 3.1
Memory card slot	Yes	No
Camera
Main camera	12 MP	12 MP
Main camera aperture	f/1.8	f/1.8
Main sensor size	1/1.76"	1/1.76"
Rear cameras	3	3
Optical stabilisation	Yes	Yes
Ultra-wide camera	Yes	Yes
Telephoto camera	Yes	Yes
Optical zoom	1.1×	1.1×
Max video	8K	8K
4K video frame rate	60 fps	60 fps
Selfie camera	10 MP	10 MP
4K selfie video	Yes	Yes
Battery
Battery capacity	4,000 mAh	4,000 mAh
Battery type	Li-Ion	Li-Ion
Wired charging	25 W	25 W
Charged in 30 min	—	55%
Wireless charging	Yes	Yes
Wireless charging power	15 W	15 W
Reverse wireless charging	Yes	Yes
Connectivity
5G	Yes	Yes
eSIM	Yes	Yes
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 6	Wi-Fi 6
Bluetooth	5	5
NFC	Yes	Yes
USB	USB Type-C 3.2	USB Type-C 3.2
USB version	3.2	3.2
Satellite navigation	GLONASS, GALILEO, BDS	GLONASS, GALILEO, BDS
Features
Stereo speakers	Yes	Yes
3.5 mm headphone jack	No	No
Loudspeaker loudness	—	-26.4 LUFS
Fingerprint sensor	Under display, ultrasonic	Under display, ultrasonic
Barometer	Yes	Yes
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
SAR (head)	0.38 W/kg	0.46 W/kg
Software
OS at launch	Android 10	Android 11
Platform	Android	Android
Interface	One UI 5.1	One UI 7
Major OS updates promised	—	4