OPPO A9 (2020) vs Samsung Galaxy S21+ 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.

8.5
Samsung Galaxy S21+
OPPO A9 (2020) Samsung Galaxy S21+
Released · Sep 11, 2019
Released · Jan 29, 2021
6.5-inch
6.7-inch
Quad camera
Triple camera
4GB · 128GB
8GB · 128GB
5000 mAh
4800 mAh
Check prices

Design

Dimensions
6.44 x 2.98 x 0.36 inches
163.6 x 75.6 x 9.1 mm
6.35 x 2.98 x 0.31 inches
161.5 x 75.6 x 7.8 mm
Weight
6.88 oz (195.0 g) 7.13 oz (202.0 g)
Materials
Back: Plastic
Frame: Plastic
Back: Glass (Corning Gorilla Glass Victus)
Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
2D Face unlock, Fingerprint (touch) 2D Face unlock, Ultrasonic in-screen fingerprint
Keys
Left: Volume control; Right: Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Space purple, Marine green, Vanilla mint Phantom silver, Black, Violet

Display

Size
6.5-inch 6.7-inch
Resolution
720x1600px, 20:9 ratio, 270 PPI 2400x1080px, 20:9 ratio, 393 PPI
Technology
IPS LCD Dynamic AMOLED
Refresh rate
120Hz (adaptive)
Screen-to-body
82.39 % 88.63 %
Peak brightness
1300 cd/m2 (nit)
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 665 SM6125 (11 nm) Qualcomm Snapdragon 888 (5 nm)
Processor
Octa-core
2000 MHz
Kryo 260
Octa-core
1x2.84GHz Kryo 680
3x2.42GHz Kryo 680
4x1.80GHz Kryo 680
GPU
Adreno 610 Adreno 660
RAM
4GB (LPDDR4) 8GB (LPDDR5)
Internal storage
128GB 128GB (UFS 3.0)
Storage expansion
microSDXC up to 256 GB not expandable
OS
Android (10, 9.0 Pie), OPPO ColorOS UI Android (13, 12, 11), Samsung One UI

Battery

Capacity
5000 mAh 4800 mAh
Type
Li - Polymer Li - Polymer
Charging
Reverse wired charging 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
5h 26min
Browsing
10h 50min
Video
8h 27min
Gaming
8h 36min

Camera

Rear
Quad camera Triple camera
Main camera
48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2.3"
Pixel size: 0.8 μm
12 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/1.76"
Pixel size: 1.8 μm
Second camera
8 MP (Ultra-wide, Autofocus)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm
12 MP (Ultra-wide, PDAF)
Aperture size: F1.8
Focal Length: 13 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Third camera
2 MP
Aperture size: F2.4
Sensor size: 1/5"
Pixel size: 1.75 μm
64 MP (Telephoto, OIS, PDAF)
Aperture size: F2.0
Focal Length: 29 mm
Sensor size: 1/2.55"
Pixel size: 0.8 μm
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Sensor size: 1/5"
Pixel size: 1.75 μm
Flash
LED LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps)
Time-lapse video, EIS
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, Video capture: 1920x1080 (Full HD) 10 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
802.11 b,g,n
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, 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), Barometer
Other
NFC, ANT+

Multimedia

Headphones
No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers
Features
Dolby Atmos 32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM
Additional microphone(s)
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), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT) 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 38(2600), 40(2300), 41(2600+) Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 5(850), 8(900), 1(2100) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
Dual SIM
Yes
SIM type
Nano SIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Dec 18, 2020
FCC ID value: A3LSMG996U
Measured SAR
Head: 0.65 W/kg
Body: 0.95 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.04 W/kg
Phablet: 3.97 W/kg

Buyers information

MSRP
$ 1000
In The Box
Adapter, Headset, Micro USB Cable, Booklet with Warranty Card, Quick Start Guide, SIM Card Tool, Protective Film (pre-applied), Case C to C Data Cable, Ejection Pin

Availability

Officially announced
Jan 14, 2021

Alternative variants

with 8GB RAM
RAM 8GB
with 256GB storage
Internal storage 256GB
MSRP $ 1050
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 7.05 oz (200.0 g)
5G Bands SA, NSA, Sub-6
FCC approval Date approved: Dec 18, 2020
FCC ID value: A3LSMG996B
Measured SAR Head: 0.24 W/kg
Body: 0.75 W/kg
Simultaneous Transmission: 3.59 W/kg
Wireless Router: 1.26 W/kg
Phablet: 1.95 W/kg
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