OnePlus 8 vs Samsung Galaxy S21 Specs Comparison

Availability

Officially announced
Apr 14, 2020	Jan 14, 2021
Prices (MSRP)
8GB/128GB - $699 12GB/256GB - $799	$800

Design

Dimensions
6.31 x 2.87 x 0.31 inches 160.2 x 72.9 x 8 mm	5.97 x 2.80 x 0.31 inches 151.7 x 71.2 x 7.9 mm
Weight
6.35 oz / 180.0 g	6.03 oz / 171.0 g Europe version - 169 g
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum	Back: Plastic Frame: Aluminum
Resistance
	Water, Dust; IP68
Biometrics
2D Face unlock, Optical in-screen fingerprint	2D Face unlock, Ultrasonic in-screen fingerprint
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Glacial green	Phantom pink, Violet, Gray, White

Display

Size
6.5-inch, 88.65% screen-to-body	6.2-inch, 86.06% screen-to-body
Type
AMOLED, 90Hz, HDR, 1100 nits	Dynamic AMOLED, 120Hz, HDR, 1300 nits
Resolution
2400x1080px, 20:9 ratio, 402 PPI	2400x1080px, 20:9 ratio, 424 PPI
Protection
Corning Gorilla Glass 5	Corning Gorilla Glass Victus

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
2.3 (Average)	1.2 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 865 SM8250 (7 nm)	Snapdragon 888 (5 nm) Europe version - Exynos 2100 S5E9840
Processor
Octa-core Kryo 585	Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680 Europe version - Octa-core, 1x2.91GHz Cortex-X1, 3x2.81G​Hz Cortex-A78, 4x2.2G​Hz Cortex-A55
GPU
Adreno 650	Adreno 660 Europe version - Mali-G78 MP14
Memory
8GB (LPDDR4)/128GB (UFS 3.0) 12GB/256GB	8GB (LPDDR5)/128GB (UFS 3.0) 8GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (11, 10)	Android (13, 12, 11)

Battery

Type
4300 mAh, Li - Polymer	4000 mAh, Li - Polymer
Charging
OnePlus Warp Charge	Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
Wired: 30.0W	Wired: 25.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

9h 37min

Gaming

10h 16min

Battery Life Estimate

4h 28min

Browsing

7h 47min

Video

7h 36min

Gaming

7h 9min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Triple camera
Main camera
48 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 25 mm Sensor size: 1/2" Pixel size: 0.8 μm	12 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.76" Pixel size: 1.8 μm
Second camera
16 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 14 mm	12 MP (Ultra-wide, Autofocus) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
2 MP (Macro) Aperture size: F2.4 Pixel size: 1.75 μm	64 MP (Telephoto, OIS, PDAF) Aperture size: F2.0 Focal Length: 29 mm Sensor size: 1/1.7" Pixel size: 0.8 μm
Flash
Dual LED	LED
Video recording
4K UHD (60 fps), 1080p (240 fps), 720p (480 fps) OIS, HDR, Time-lapse video, EIS	8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS
Front
16 MP (EIS, HDR) Video capture: 1080p (30 fps)	10 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)

Connectivity & Features

Bluetooth
5.1	5.0
WLAN
Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.1	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M3/T3
Location
GPS, A-GPS, Glonass, Galileo, Dual-band positioning, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC	NFC, ANT+

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
Dolby Atmos, aptX-HD	32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Cellular

5G Bands
n2, n5, n41, n66, n71, SA, NSA Europe version - n1, n3, n7, n28, n78, SA, NSA	n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71 Europe version - 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71
TDD Bands
34, 38, 39, 40, 41, 46, 48 Europe version - 34, 38, 39, 40, 41, 42, 46	38, 39, 40, 41, 46, 48
3G Bands
1, 2, 4, 5, 6, 8	1, 2, 4, 5, 8
Data Speed
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
Dual SIM
Yes
SIM type
Nano SIM	Nano SIM

Regulatory Approval

FCC approval
Date approved: Jan 24, 2021 FCC ID value: 2ABZ2-EE103	Date approved: Dec 08, 2020 FCC ID value: A3LSMG991U
Measured SAR
Head: 1.01 W/kg Body: 0.78 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 0.92 W/kg	Head: 0.36 W/kg Body: 1.08 W/kg Simultaneous Transmission: 3.96 W/kg Wireless Router: 1.09 W/kg Phablet: 2.49 W/kg

Discover more

Full Specs OnePlus 8 Specs PA Review OnePlus 8 Review

Full Specs Samsung Galaxy S21 Specs PA Review Samsung Galaxy S21 Review