OnePlus 6 vs Samsung Galaxy S21 Ultra Specs Comparison

Availability

Officially announced
May 16, 2018	Jan 14, 2021
Prices (MSRP)
$629	$1200 | €1399

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, 83.81% screen-to-body	6.8-inch, 89.33% screen-to-body
Type
AMOLED	Dynamic AMOLED, 120Hz, HDR, 1500 nits
Resolution
2280x1080px, 19:9 ratio, 402 PPI	3200x1440px, 20:9 ratio, 516 PPI
Protection
Corning Gorilla Glass 5	Corning Gorilla Glass Victus

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
1 (Excellent)	1.5 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 845 SDM845 (10 nm)	Snapdragon 888 SM8350 (5 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680
GPU
Adreno 630	Adreno 660
Memory
8GB (LPDDR4)/256GB 6GB/64GB 8GB/128GB	12GB (LPDDR5)/128GB (UFS 3.1) 12GB/256GB 16GB/512GB
Storage expansion
not expandable	not expandable
OS
Android (8.1 Oreo)	Android (14, 13, 12, 11)

PhoneArena Performance Test

GeekBench 6 Single
Untested	1117
GeekBench 6 Multi
Untested	3312
3D Mark High
Untested	1963
3D Mark Low
Untested	1179

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
3300 mAh, Li - Polymer	5000 mAh, 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

6h 15min

Browsing

14h 43min

Video

8h 52min

Gaming

8h 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	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
4K UHD (60 fps), 1080p (240 fps), 720p (480 fps) Time-lapse video, EIS, Video calling, Video sharing	8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Video light, EIS
Front
16 MP (HDR) Video capture: 1080p	40 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)

Connectivity & Features

Bluetooth
5.0	5.1
WLAN
a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 2.0	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
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
Additional microphone(s)
Noise cancellation

Cellular

5G Bands
	n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71
4G (TDD) Bands
34, 38, 39, 40, 41	38, 39, 40, 41, 46, 48
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
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

Alternative variants

with 64 GB storage

Memory	6GB/64GB
Prices (MSRP)	$529

with 256GB storage

Memory	256GB
Colors	Phantom black
Prices (MSRP)	$1250

with 128 GB storage

Memory	128GB
Prices (MSRP)	$579

with 512GB storage

Memory	16GB/512GB
Colors	Phantom black
Prices (MSRP)	$1380

for Europe

System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 1x2.91GHz Cortex-X1 3x2.81G​Hz Cortex-A78 4x2.2G​Hz 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