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OnePlus 5T vs Samsung Galaxy S21 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
8.7
OnePlus 5T
8.5
Samsung Galaxy S21
OnePlus 5T Samsung Galaxy S21
Released · Nov 21, 2017
Released · Jan 29, 2021
6.0-inch · 2160x1080px
6.2-inch · 2400x1080px
Dual camera
Triple camera
8GB · 128GB
8GB · 128GB
3300 mAh
4000 mAh
Check prices

Design

Dimensions
6.15 x 2.95 x 0.29 inches
156.1 x 75 x 7.3 mm 		5.97 x 2.80 x 0.31 inches
151.7 x 71.2 x 7.9 mm
Weight
5.71 oz (162.0 g) 6.03 oz (171.0 g)
Materials
Back: Aluminum Back: Plastic
Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
2D Face unlock, Fingerprint (touch) 2D Face unlock, Ultrasonic in-screen fingerprint
Keys
Left: Volume control; Right: Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Black, Red, White Phantom pink, Violet, Gray, White

Display

Size
6.0-inch 6.2-inch
Resolution
2160x1080px, 18:9 ratio, 400 PPI 2400x1080px, 20:9 ratio, 424 PPI
Technology
AMOLED Dynamic AMOLED
Refresh rate
120Hz (adaptive)
Screen-to-body
80.43 % 86.06 %
Peak brightness
1300 cd/m2 (nit)
Features
Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 835 MSM8998 (10 nm) Qualcomm Snapdragon 888 (5 nm)
Processor
Octa-core
2450 MHz
Kryo 280 		Octa-core
1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680
GPU
Adreno 540 Adreno 660
RAM
8GB (LPDDR4) 8GB (LPDDR5)
Internal storage
128GB 128GB (UFS 3.0)
Storage expansion
not expandable not expandable
OS
Android (10, 9.0 Pie, 8.1 Oreo, 8.0 Oreo, 7.1 Nougat), OnePlus OxygenOS UI Android (13, 12, 11), Samsung One UI

Battery

Capacity
3300 mAh 4000 mAh
Type
Li - Polymer Li - Polymer
Charging
OnePlus Dash Charge Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
Wired: 25.0W
Wireless: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
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
Dual camera Triple camera
Main camera
16 MP (PDAF)
Aperture size: F1.7
Focal length: 27 mm
Sensor size: 1/2.8"
Pixel size: 1.12 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
20 MP (PDAF)
Aperture size: F1.7
Focal Length: 27 mm
Sensor size: 1/2.8"
Pixel size: 1 μm 		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
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
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (120 fps)
Time-lapse video, Picture-taking during video recording, EIS, Video calling, Video sharing 		7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS
Front
16 MP (HDR), Video capture: 1920x1080 (Full HD) 10 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
802.11 a,b,g,n,ac,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
USB
Type-C, USB 2.0 Type-C, USB 3.2
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers) Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC, VoIP, Tethering, Computer sync, OTA sync NFC, ANT+

Multimedia

Headphones
3.5mm jack No 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
Album art cover, Background playback 32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM, Stereo, RDS
Additional microphone(s)
Noise cancellation Noise cancellation, Video recording

Cellular

5G
Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
4G (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), 66(AWS-3) 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)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+) Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 12/13 (600/150 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: Nov 17, 2017
FCC ID value: 2ABZ2-A5010 		Date approved: Dec 08, 2020
FCC ID value: A3LSMG991U
Measured SAR
Head: 1.38 W/kg
Body: 0.76 W/kg
Simultaneous Transmission: 1.50 W/kg
Wireless Router: 1.25 W/kg
Phablet: 3.61 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

Buyers information

MSRP
$ 559 $ 800
In The Box
Screen Protector (pre-applied), Translucent case, Dash Type-C Cable, Dash Power Adapter, SIM Tray Ejector, Quick Start Guide, Safety information C to C Data Cable, Ejection Pin

Availability

Officially announced
Nov 16, 2017 Jan 14, 2021

Alternative variants

with 64 GB storage
RAM 6GB
Internal storage 64GB
MSRP $ 500
with 256GB storage
Internal storage 256GB
for Europe
System chip Samsung Exynos 2100 (5 nm)
Processor Octa-core
2900 MHz
1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55
GPU Mali G78 MP14
Weight 5.96 oz (169.0 g)
5G Bands SA, NSA, Sub-6
FCC approval Date approved: Dec 18, 2020
FCC ID value: A3LSMG991B
Measured SAR Head: 0.42 W/kg
Body: 0.94 W/kg
Simultaneous Transmission: 3.96 W/kg
Wireless Router: 1.34 W/kg
Phablet: 2.37 W/kg
FCC OKs Cingular\'s purchase of AT&T Wireless