OPPO Find X vs OnePlus 7T vs Samsung Galaxy S21

Compare phone and tablet specifications of up to three devices at once.

Comparison mode:

Display

Size:

6.4 inches
6.5 inches
6.2 inches

Resolution:

2340 x 1080 pixels, 401 PPI
2400 x 1080 pixels, 20:9 ratio, 402 PPI
2400 x 1080 pixels, 20:9 ratio, 424 PPI

Technology:

AMOLED
Super AMOLED
Dynamic AMOLED

Screen-to-body:

87.04 %
86.43 %
86.06 %

Peak brightness:

1300 cd/m2 (nit)

Features:

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
90Hz refresh rate, HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
120Hz refresh rate, HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 845 SDM845
Qualcomm Snapdragon 855+ SM8150-AC
Qualcomm Snapdragon 888

Processor:

Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2960 MHz, Kryo 485, 64-bit, 7 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Adreno 630
Adreno 640
Adreno 660

RAM:

8GB LPDDR4
8GB LPDDR4
8GB LPDDR5

Internal storage:

256GB
128GB (UFS 3.0), not expandable
128GB (UFS 3.0), not expandable

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (8.1 Oreo), ColorOS UI
Android (11, 10), OxygenOS UI
Android (11), Samsung One UI

Battery

Capacity:

3730 mAh
3800 mAh
4000 mAh

Type:

Li - Ion, Not user replaceable
Not user replaceable
Li - Polymer, Not user replaceable

Battery life test results:

Charging:

OPPO VOOC
OnePlus Warp Charge
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 30.0W
Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Dual camera
Triple camera
Triple camera

Main camera:

16 MP (OIS, PDAF)
48 MP (OIS, PDAF)
12 MP (OIS, PDAF)

Specifications:

Aperture size: F2.0; Sensor size: 1/2.6"; Pixel size: 1.22 μm
Aperture size: F1.6; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 1.8 μm

Second camera:

20 MP
12 MP (Telephoto, PDAF)
64 MP (Telephoto, OIS, PDAF)

Specifications:

Aperture size: F2.0; Sensor size: 1/2.8"; Pixel size: 1 μm
Optical zoom: 2.0x; Aperture size: F2.2; Focal Length: 51 mm; Pixel size: 1 μm
Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Third camera:

16 MP (Ultra-wide, Autofocus)
12 MP (Ultra-wide, Autofocus)

Specifications:

Aperture size: F2.2; Focal Length: 17 mm
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

HDR, Video calling, Video sharing
HDR, Time-lapse video, EIS
OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS

Front:

25 MP
16 MP (EIS, HDR)
10 MP (PDAF, HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)
3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

6.17 x 2.92 x 0.38 inches (156.7 x 74.2 x 9.6 mm)
6.34 x 2.93 x 0.32 inches (160.94 x 74.44 x 8.13 mm)
5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)

Weight:

6.56 oz (186.0 g)
6.70 oz (190.0 g)
6.03 oz (171.0 g)

Materials:

Back: Glass; Frame: Aluminum
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Plastic; Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

3D Face unlock
2D Face unlock, In-screen fingerprint
2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Left: Volume control; Right: Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Blue, Red
Glacier blue, Frosted silver
Phantom pink, Violet, Gray, White

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

LTE (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), 32(1500 L-band), 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), 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), 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)

LTE (TDD):

Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 34(2000), 38(2600), 39(1900+), 41(2600+), 46, 48(3600)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS:

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 6(800), 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
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Yes
Yes

SIM type:

Nano SIM, Micro SIM
Nano SIM
Nano SIM

Multimedia

Headphones:

No 3.5mm jack
No 3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Multiple speakers
Earpiece, Multiple speakers

Features:

Album art cover, Background playback
Dolby Atmos, aptX-HD
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation
for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

5.0, EDR
5.0
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
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 (reversible), USB 2.0
Type-C (reversible), USB 3.1
Type-C (reversible), USB 3.2

Features:

Mass storage device, OTG, Charging, Headphones port
Charging, Headphones port
Charging, Headphones port, OTG, Video out

Location:

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Dual-band positioning, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

VoIP, Tethering, Computer sync, OTA sync
NFC
NFC, ANT+

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Dec 08, 2020

FCC ID value:

A3LSMG991U

Measured SAR:

Head:

1.57 W/kg
0.36 W/kg

Body:

1.66 W/kg
1.08 W/kg

Simultaneous Transmission:

3.96 W/kg

Wireless Router:

1.09 W/kg

Phablet:

2.49 W/kg

Buyers information

Price:

$ 599
$ 800

User Manual:

This is the official OnePl​us 7T User Guide in English provided from the manufacturer.

In The Box:

Warp Charge 30 power adapter, Warp Type-C cable, Quick Start guide, Welcome letter, Safety information and Warranty card, LOGO sticker, Case, Screen protector (pre-applied), SIM Tray ejector
C to C Data Cable, Ejection Pin

Availability

Officially announced:

Jun 19, 2018
Sep 26, 2019
Jan 14, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless