OnePlus 6 vs Samsung Galaxy A51 Specs Comparison

Design

Dimensions
6.13 x 2.97 x 0.31 inches 155.7 x 75.4 x 7.75 mm	6.24 x 2.90 x 0.31 inches 158.5 x 73.6 x 7.9 mm
Weight
6.24 oz (177.0 g)	6.07 oz (172.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Metal	Back: Plastic Frame: Plastic
Resistance
Splash
Biometrics
2D Face unlock, Fingerprint (touch)	2D Face unlock, Optical in-screen fingerprint
Features
Notification light
Keys
Left: Volume control; Right: Lock/Unlock key, Other	Right: Volume control, Lock/Unlock key
Colors
Black, Red, White	Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Display

Size
6.3-inch	6.5-inch
Resolution
2280x1080px, 19:9 ratio, 402 PPI	2400x1080px, 20:9 ratio, 405 PPI
Technology
AMOLED	Super AMOLED
Refresh rate
	60Hz
Screen-to-body
83.81 %	87.37 %
Features
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor	Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 845 SDM845 (10 nm)	Samsung Exynos 9611 (10 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core 2300 MHz 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53
GPU
Adreno 630	Mali-G72 MP3
RAM
8GB (LPDDR4)	4GB (LPDDR4)
Internal storage
256GB	128GB, available to use: 105.9 GB
Storage expansion
not expandable	microSDXC up to 512 GB
OS
Android (8.1 Oreo), OxygenOS UI	Android (11, 10), Samsung One UI

Battery

Capacity
3300 mAh	4000 mAh
Type
Li - Polymer	Li - Polymer
Charging
OnePlus Dash Charge	Fast charging

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

5h 22min

Browsing

11h 35min

Video

8h 35min

Gaming

6h 40min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera	Quad camera
Main camera
16 MP (OIS, PDAF, CMOS image sensor) Aperture size: F1.7 Focal length: 25 mm Sensor size: 1/2.6" Pixel size: 1.22 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
20 MP (PDAF, CMOS image sensor) Aperture size: F1.7 Focal Length: 25 mm Sensor size: 1/2.8" Pixel size: 1 μm	12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm
Third camera
	5 MP (Macro) Aperture size: F2.4 Focal Length: 40 mm
Fourth camera
	5 MP (Depth information) Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm
Flash
Dual LED	LED
Video recording
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (480 fps) Time-lapse video, EIS, Video calling, Video sharing	3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps) Hyperlapse, EIS
Front
16 MP (HDR), Video capture: 1920x1080 (Full HD)	32 MP (HDR), 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
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)
Other
NFC, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync	NFC, ANT+

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
aptX-HD	Dolby Atmos
Screen mirroring
Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

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), 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), 14(700 PS), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+)	Bands 38(2600), 39(1900+), 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 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
Dual SIM
Yes
SIM type
Nano SIM	Nano SIM
HD Voice
Yes
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: May 17, 2018 FCC ID value: 2ABZ2-A6003	Date approved: Nov 28, 2019 FCC ID value: A3LSMA515FN
Measured SAR
Head: 1.26 W/kg Body: 0.90 W/kg Simultaneous Transmission: 1.53 W/kg Wireless Router: 1.29 W/kg Phablet: 3.50 W/kg	Head: 0.89 W/kg Body: 1.18 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.12 W/kg Phablet: 2.76 W/kg

Buyers information

MSRP
$ 629	$ 400
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

Availability

Officially announced
May 16, 2018	Dec 12, 2019

Alternative variants

with 64 GB storage

RAM	6GB
Internal storage	64GB
MSRP	$ 529

with 128GB storage

RAM	6GB
Internal storage	128GB

with 128 GB storage

Internal storage	128GB
MSRP	$ 579

for Verizon

4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3)
3G	Bands 5(850), 8(900), 2(1900), 1(2100)

for AT&T

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

for Sprint

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

for Europe

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), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)	Bands 38(2600), 40(2300), 41(2600+)
Dual SIM	Yes

Links

Full specifications
OnePlus 6 Specs	Samsung Galaxy A51 Specs
PhoneArena Review
OnePlus 6 Review	Samsung Galaxy A51 Review
User Reviews
OnePlus 6 User Reviews	Samsung Galaxy A51 User Reviews