OnePlus 6 vs realme 8 vs Samsung Galaxy S21

Compare phone and tablet specifications of up to three devices at once.

Comparison mode:

Display

Size:

6.3 inches
6.4 inches
6.2 inches

Resolution:

2280 x 1080 pixels, 19:9 ratio, 402 PPI
2400 x 1080 pixels, 20:9 ratio, 411 PPI
2400 x 1080 pixels, 20:9 ratio, 424 PPI

Technology:

AMOLED
Super AMOLED
Dynamic AMOLED

Screen-to-body:

83.81 %
83.34 %
86.06 %

Peak brightness:

1000 cd/m2 (nit)
1300 cd/m2 (nit)

Features:

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
60Hz refresh rate, Ambient light sensor, Proximity sensor
120Hz refresh rate (adaptive), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 845 SDM845
MediaTek Helio G95 MT6785V
Qualcomm Snapdragon 888

Processor:

Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2050 MHz, Cortex-A76, 64-bit, 12 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Adreno 630
Mali G76
Adreno 660

RAM:

8GB LPDDR4
4GB LPDDR4
8GB LPDDR5

Internal storage:

256GB, not expandable
128GB (UFS 2.1)
128GB (UFS 3.0), not expandable

Storage expansion:

microSDXC

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (10, 9.0 Pie, 8.1 Oreo), OxygenOS UI
Android (11), realme 2.0 UI
Android (11), Samsung One UI

Battery

Capacity:

3300 mAh
5000 mAh
4000 mAh

Type:

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Charging:

OnePlus Dash Charge
Fast charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 30.0W
Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Dual camera
Quad camera
Triple camera

Main camera:

16 MP (OIS, PDAF, CMOS image sensor)
64 MP (PDAF)
12 MP (OIS, PDAF)

Specifications:

Aperture size: F1.7; Focal length: 25 mm; Sensor size: 1/2.6"; Pixel size: 1.22 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 1.8 μm

Second camera:

20 MP (PDAF, CMOS image sensor)
8 MP (Ultra-wide)
64 MP (Telephoto, OIS, PDAF)

Specifications:

Aperture size: F1.7; Focal Length: 25 mm; Sensor size: 1/2.8"; Pixel size: 1 μm
Aperture size: F2.2; Focal Length: 16 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Third camera:

2 MP (Macro)
12 MP (Ultra-wide, Autofocus)

Specifications:

Aperture size: F2.4
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Fourth camera:

2 MP (Black and White)

Specifications:

Aperture size: F2.4

Video recording:

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

Time-lapse video, EIS, Video calling, Video sharing
Time-lapse video, Picture-taking during video recording, EIS
OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS

Front:

16 MP (HDR)
16 MP (HDR)
10 MP (PDAF, HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)
3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

6.13 x 2.97 x 0.31 inches (155.7 x 75.4 x 7.75 mm)
6.32 x 2.91 x 0.31 inches (160.6 x 73.9 x 8 mm)
5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)

Weight:

6.24 oz (177.0 g)
6.24 oz (177.0 g)
6.03 oz (171.0 g)

Materials:

Back: Glass (Corning Gorilla Glass 5); Frame: Metal
Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Aluminum

Resistance:

Splash
Water, Dust; IP68

Biometrics:

2D Face unlock, Fingerprint (touch)
In-screen fingerprint
2D Face unlock, Ultrasonic in-screen fingerprint

Features:

Notification light

Keys:

Left: Volume control; Right: Lock/Unlock key, Other
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black, Red, White
Cyber Silver, Cyber Black
Phantom pink, Violet, Gray, White

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 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), 32(1500 L-band), 66(AWS-3), 71(600)
Bands 1(2100), 3(1800), 5(850), 8(900)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)

LTE (TDD):

Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS:

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 4(1700/2100), 5(850), 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, HSDPA+ (4G) 42.2 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Yes
Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

aptX-HD
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

5.0
5.1
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.2

Features:

Charging, Mass storage device
Charging, OTG
Charging, Headphones port, OTG, Video out

Location:

GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

NFC, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

May 17, 2018
Dec 08, 2020

FCC ID value:

2ABZ2-A6003
A3LSMG991U

Measured SAR:

Head:

1.26 W/kg
0.36 W/kg

Body:

0.90 W/kg
1.08 W/kg

Simultaneous Transmission:

1.53 W/kg
3.96 W/kg

Wireless Router:

1.29 W/kg
1.09 W/kg

Phablet:

3.50 W/kg
2.49 W/kg

Buyers information

Price:

$ 629
€ 199
$ 800

In The Box:

Screen protector (pre-applied), Translucent case, OnePlus fast charge Type-C cable, OnePlus fast charge power adapter, SIM tray ejector, Quick start guide, Safety information
USB Type-C Cable, 5V6A Charge Adapter, SIM Card Needle, Screen Protect Film, Protect Case, Quick Start Guide, Important Product Information (including the Warranty Card)
C to C Data Cable, Ejection Pin

Availability

Officially announced:

May 16, 2018
Mar 24, 2021
Jan 14, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless