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OnePlus 6T vs Samsung Galaxy A21 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
8.9
OnePlus 6T
Samsung Galaxy A21
OnePlus 6T Samsung Galaxy A21
Released · Nov 01, 2018
Released · Jun 29, 2020
6.4-inch
6.5-inch
Dual camera
Quad camera
8GB · 256GB
3GB · 32GB
3700 mAh
4000 mAh

Design

Dimensions
6.20 x 2.94 x 0.32 inches
157.5 x 74.8 x 8.2 mm 		6.61 x 3.02 x 0.32 inches
167.8 x 76.7 x 8.1 mm
Weight
6.53 oz (185.0 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, Other Right: Volume control, Lock/Unlock key
Colors
Black, Purple Black

Display

Size
6.4-inch 6.5-inch
Resolution
2340x1080px, 19.5:9 ratio, 402 PPI 1600x720px, 20:9 ratio, 270 PPI
Technology
AMOLED IPS LCD
Refresh rate
60Hz
Screen-to-body
85.77 % 79.20 %
Features
Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 845 SDM845 (10 nm) Mediatek Helio P35 MT6765 (12 nm)
Processor
Octa-core
2800 MHz
Kryo 385 		Octa-core
4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53
GPU
Adreno 630 PowerVR GE8320
RAM
8GB (LPDDR4) 3GB (LPDDR4)
Internal storage
256GB 32GB (eMMC 5.1), available to use: 19.8 GB
Storage expansion
not expandable microSDXC up to 512 GB
OS
Android (11, 10, 9.0 Pie), OxygenOS UI Android (10), Samsung One UI

Battery

Capacity
3700 mAh 4000 mAh
Type
Li - Ion Li - Polymer
Charging
OnePlus Dash Charge Fast charging
Charge speed
Wired: 15.0W

Camera

Rear
Dual camera Quad camera
Main camera
16 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 25 mm
Sensor size: 1/2.6"
Pixel size: 1.22 μm 		16 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3.06"
Pixel size: 1 μm
Second camera
20 MP (PDAF)
Aperture size: F1.7
Focal Length: 25 mm
Sensor size: 1/2.8"
Pixel size: 1 μm 		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
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)
EIS, Video calling, Video sharing 		1920x1080 (Full HD) (30 fps)
Front
16 MP (HDR), Video capture: 1920x1080 (Full HD) 13 MP, Video capture: 1920x1080 (Full HD)

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,dual-band
Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0 Type-C, USB 2.0
Hearing aid compatible
M3/T3 M4/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers) Accelerometer, Gyroscope, Compass
Other
NFC, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync NFC

Multimedia

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

Cellular

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), 32(1500 L-band), 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 Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 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 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS 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 Yes
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Oct 30, 2018
FCC ID value: 2ABZ2-A6013 		Date approved: Apr 17, 2020
FCC ID value: ZCASMA215U
Measured SAR
Head: 1.34 W/kg
Body: 1.19 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.32 W/kg
Phablet: 3.62 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
$ 629 $ 250
In The Box
Screen Protector (pre-applied), Case, Fast Charge Type-C Cable, Fast Charge Power Adapter, SIM Tray Ejector, Welcome Letter, Quick Start Guide / Poster, Safety Information, Type-C to 3.5 mm Headphone Jack Adapter This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced
Oct 29, 2018 Apr 08, 2020

Alternative variants

with 128 GB storage
Internal storage 128GB
MSRP $ 579
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)
with 6 GB RAM
RAM 6GB
Internal storage 128GB
MSRP $ 549
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+)
Single SIM, no CDMA
Internal storage 128GB
RAM 10GB
MSRP $ 700
FCC OKs Cingular\'s purchase of AT&T Wireless