OPPO A91 vs Samsung Galaxy A21s Specs Comparison

Availability

Officially announced
Dec 20, 2019	May 15, 2020
Prices (MSRP)
	€240

Design

Dimensions
6.31 x 2.89 x 0.31 inches 160.2 x 73.3 x 7.9 mm	6.44 x 2.96 x 0.35 inches 163.7 x 75.3 x 8.9 mm
Weight
6.07 oz / 172.0 g	6.77 oz / 192.0 g
Materials
Back: Plastic Frame: Plastic
Biometrics
Optical in-screen fingerprint	2D Face unlock, Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Lightening Black, Unicorn White, Blazing Blue	Black, White, Blue, Red

Display

Size
6.4-inch, 84.05% screen-to-body	6.5-inch, 82.94% screen-to-body
Type
AMOLED, 60Hz	TFT
Resolution
2400x1080px, 20:9 ratio, 411 PPI	1600x720px, 20:9 ratio, 270 PPI
Protection
Corning Gorilla Glass 5

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
Untested	4.6 (Poor)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Mediatek Helio P70 MT6771V (12 nm)	Samsung Exynos 850
Processor
Octa-core 2100 MHz Cortex-A73	Octa-core 8x2.0GHz Cortex-A55
GPU
Mali-G72 MP3	Mali-G76
Memory
4GB (LPDDR4)/128GB (UFS 2.1) 8GB/128GB	3GB (LPDDR4)/32GB (eMMC 5.1) 4GB/64GB 6GB/64GB
Storage expansion
microSDXC	microSDXC up to 512 GB
OS
Android (9.0 Pie)	Android (10)

Battery

Type
4025 mAh, Li - Polymer	5000 mAh, Li - Polymer
Charging
SuperVOOC 3.0	Fast charging
Charge speed
Wired: 20.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

Untested

Browsing

Untested

Video

11h 9min

Gaming

7h 48min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera	Quad camera
Main camera
48 MP (PDAF) Aperture size: F1.8 Focal length: 26mm (wide) mm Sensor size: 1/2.3" Pixel size: 0.8 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/1.4" Pixel size: 1.12 μm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
2 MP (Macro) Aperture size: F2.4 Sensor size: 1/1.5" Pixel size: 1.75 μm	2 MP (Macro) Aperture size: F2.4
Fourth camera
2 MP (Depth information) Aperture size: F2.4 Sensor size: 1/3.1" Pixel size: 1 μm	2 MP (Depth information) Aperture size: F2.4
Flash
LED	LED
Video recording
1080p (30 fps) HDR, Time-lapse video, EIS	1080p (30 fps)
Front
16 MP Video capture: 720p (30 fps)	13 MP Video capture: 1080p

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
b,g,n,ac Wi-Fi Direct, Hotspot 802.11 b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
	NFC

Discover more

Full Specs OPPO A91 Specs

Full Specs Samsung Galaxy A21s Specs PA Review Samsung Galaxy A21s Review

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 5, 7, 8	1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands
38, 40, 41	38, 40, 41
3G Bands
1, 5, 8	1, 2, 5, 8
Data Speed
LTE, HSDPA+ (4G) 42.2 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
No	Yes
SIM type
Nano SIM	Nano SIM

Alternative variants

Comes with 8GB RAM

Memory	8GB

with 4GB RAM

Memory	4GB/64GB

with 6GB RAM

Memory	6GB/64GB