Reserves open for the new Samsung phones!

OnePlus 6 vs Samsung Galaxy S21 Ultra 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.

9.0	9.1
OnePlus 6	Samsung Galaxy S21 Ultra
Released · May 22, 2018	Released · Jan 29, 2021
6.3-inch	6.8-inch
Dual camera	Quad camera
8GB · 256GB	12GB · 128GB
3300 mAh	5000 mAh
	Check prices

Design

Dimensions
6.13 x 2.97 x 0.31 inches 155.7 x 75.4 x 7.75 mm	6.50 x 2.98 x 0.35 inches (~0.37 inches with camera bump) 165.1 x 75.6 x 8.9 mm (~9.4 mm with camera bump)
Weight
6.24 oz (177.0 g)	8.04 oz (229.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Metal	Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum
Resistance
Splash	Water, Dust; IP68
Biometrics
2D Face unlock, Fingerprint (touch)	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
Colors
Black, Red, White	Phantom black, Silver

Display

Size
6.3-inch	6.8-inch
Resolution
2280x1080px, 19:9 ratio, 402 PPI	3200x1440px, 20:9 ratio, 516 PPI
Technology
AMOLED	Dynamic AMOLED
Refresh rate
	120Hz (adaptable)
Screen-to-body
83.81 %	89.33 %
Peak brightness
	1500 cd/m2 (nit)
Features
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 845 SDM845 (10 nm)	Qualcomm Snapdragon 888 SM8350 (5 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680
GPU
Adreno 630	Adreno 660
RAM
8GB (LPDDR4)	12GB (LPDDR5)
Internal storage
256GB	128GB (UFS 3.1)
Storage expansion
not expandable	not expandable
OS
Android (8.1 Oreo), OxygenOS UI	Android (14, 13, 12, 11), One UI

Battery

Capacity
3300 mAh	5000 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

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

6h 15min

Browsing

14h 43min

Video

8h 52min

Gaming

8h 40min

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	108 MP (OIS, Laser and PDAF) Aperture size: F1.8 Focal length: 24 mm Sensor size: 1/1.33" 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, PDAF) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
	10 MP (Telephoto, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm
Fourth camera
	10 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 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	7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) OIS, HDR, Hyperlapse, Video light, EIS
Front
16 MP (HDR), Video capture: 1920x1080 (Full HD)	40 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

Connectivity & Features

Bluetooth
5.0	5.1
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, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync	NFC, ANT+

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
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
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), 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), 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 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
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 Pro Cat 20 (2000/150 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: Dec 22, 2020 FCC ID value: A3LSMG998U
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: 0.77 W/kg Body: 1.02 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.16 W/kg Phablet: 3.15 W/kg

Buyers information

MSRP
$ 629	$ 1200 / € 1399
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	C to C Data Cable, Ejection Pin

Availability

Officially announced
May 16, 2018	Jan 14, 2021

Alternative variants

with 64 GB storage


RAM	6GB
Internal storage	64GB
MSRP	$ 529

with 256GB storage


Internal storage	256GB
Colors	Phantom black
MSRP	$ 1250

with 128 GB storage


Internal storage	128GB
MSRP	$ 579

with 512GB storage


RAM	16GB
Internal storage	512GB
Colors	Phantom black
MSRP	$ 1380

for Europe


System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55
GPU	Mali G78 MP14
Weight	8.01 oz (227.0 g)
5G	Bands SA, NSA, Sub-6
FCC approval	Date approved: Dec 22, 2020 FCC ID value: A3LSMG998B
Measured SAR	Head: 0.16 W/kg Body: 0.72 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.34 W/kg Phablet: 3.86 W/kg

Links

Full specifications
OnePlus 6 Specs	Samsung Galaxy S21 Ultra Specs
PhoneArena Review
OnePlus 6 Review	Samsung Galaxy S21 Ultra Review
User Reviews
OnePlus 6 User Reviews	Samsung Galaxy S21 Ultra User Reviews