OnePlus 8 vs Samsung Galaxy A21 Specs Comparison

Design

Dimensions
6.31 x 2.87 x 0.31 inches 160.2 x 72.9 x 8 mm	6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm
Weight
6.35 oz (180.0 g)	6.81 oz (193.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum	Back: Plastic Frame: Plastic
Biometrics
2D Face unlock, Optical in-screen fingerprint	Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Glacial green	Black

Display

Size
6.5-inch	6.5-inch
Resolution
2400x1080px, 20:9 ratio, 402 PPI	1600x720px, 20:9 ratio, 270 PPI
Technology
AMOLED	IPS LCD
Refresh rate
90Hz	60Hz
Screen-to-body
88.65 %	79.20 %
Peak brightness
1100 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 865 SM8250 (7 nm)	Mediatek Helio P35 MT6765 (12 nm)
Processor
Octa-core 2840 MHz Kryo 585	Octa-core 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53
GPU
Adreno 650	PowerVR GE8320
RAM
8GB (LPDDR4)	3GB (LPDDR4)
Internal storage
128GB (UFS 3.0)	32GB (eMMC 5.1), available to use: 19.8 GB
Storage expansion
not expandable	microSDXC up to 512 GB
OS
Android (11, 10)	Android (10), Samsung One UI

Battery

Capacity
4300 mAh	4000 mAh
Type
Li - Polymer	Li - Polymer
Charging
OnePlus Warp Charge	Fast charging
Charge speed
Wired: 30.0W	Wired: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

9h 37min

Gaming

10h 16min

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Triple camera	Quad camera
Main camera
48 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 25 mm Sensor size: 1/2" Pixel size: 0.8 μm	16 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3.06" Pixel size: 1 μm
Second camera
16 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 14 mm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
2 MP (Macro) Aperture size: F2.4 Pixel size: 1.75 μm	2 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information) Aperture size: F2.4
Flash
Dual LED	LED
Video recording
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (480 fps) OIS, HDR, Time-lapse video, EIS	1920x1080 (Full HD) (30 fps)
Front
16 MP (EIS, HDR), Video capture: 1920x1080 (Full HD)	13 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.1	5.0
WLAN
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,dual-band Wi-Fi Direct, Hotspot
USB
Type-C, USB 3.1	Type-C, USB 2.0
Hearing aid compatible
	M4/T3
Location
GPS, A-GPS, Glonass, Galileo, Dual-band positioning, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass
Other
NFC	NFC

Multimedia

Headphones
No 3.5mm jack	3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Loudspeaker
Features
Dolby Atmos, aptX-HD
Screen mirroring
DLNA,Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
Noise cancellation

Cellular

5G
Bands n2, n5, n41, n66, n71, SA, NSA
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
4G (TDD)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes

Regulatory Approval

FCC approval
Date approved: Jan 24, 2021 FCC ID value: 2ABZ2-EE103	Date approved: Apr 17, 2020 FCC ID value: ZCASMA215U
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: 0.42 W/kg Body: 1.27 W/kg Simultaneous Transmission: 1.27 W/kg Wireless Router: 1.27 W/kg

Buyers information

MSRP
$ 699	$ 250
In The Box
Warp Charge 30 Power Adapter, Warp Type-C Cable (Support USB 2.0), Quick Start Guide, Welcome Letter, Safety Information and Warranty Card, LOGO Sticker, Screen Protector, SIM Tray Ejector	This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced
Apr 14, 2020	Apr 08, 2020

Alternative variants

with 256GB storage

RAM	12GB
Internal storage	256GB
Colors	Onyx black, Interstellar glow
MSRP	$ 799

for Verizon

4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
4G (TDD)	Bands 38(2600), 40(2300), 41(2600+)
3G	Bands 5(850), 8(900), 2(1900), 1(2100)

for Europe

5G	Bands n1, n3, n7, n28, n78, SA, NSA
4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
4G (TDD)	Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 46

for Sprint

4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)	Bands 41(2600+)

for T-Mobile

Resistance	Water, Dust; IP68

Links

Full specifications
OnePlus 8 Specs	Samsung Galaxy A21 Specs
PhoneArena Review
OnePlus 8 Review
User Reviews
OnePlus 8 User Reviews	Samsung Galaxy A21 User Reviews