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Oppo A55s 5G vs Oppo A91
Oppo A55s 5G
vs
Oppo A91
comparison
Show Only Differences
Highlight Differences
Oppo A55s 5G
Oppo A91
key specs
Display
6.50-inch
6.40-inch
Processor
Qualcomm Snapdragon 480
octa-core
Front Camera
8-megapixel
Unspecified
Rear Camera
13-Ultrapixel + 2-megapixel
48-megapixel + 8-megapixel
RAM
6GB, 8GB
8GB
Storage
128GB
128GB
Battery Capacity
4000mAh
4000mAh
OS
Android 11
Android 9
Resolution
1080x2400 pixels
1080x2400 pixels
general
Brand
Oppo
Oppo
Model
A55s 5G
A91
Release date
November 19, 2021
December 20, 2019
Launched in India
No
-
Form factor
Touchscreen
Touchscreen
Dimensions (mm)
162.10 x 74.70 x 8.20
-
Weight (g)
178.00
-
Battery capacity (mAh)
4000
4000
Colours
Black, Green
Black, Blue, Red
Removable battery
-
No
Fast charging
-
VOOC
display
Refresh Rate
90 Hz
-
Screen size (inches)
6.50
6.40
Touchscreen
Yes
Yes
Resolution
1080x2400 pixels
1080x2400 pixels
Pixels per inch (PPI)
405
-
Protection type
-
Gorilla Glass
hardware
Processor
1.8GHz octa-core (2x2.04GHz + 6x1.8GHz)
octa-core
Processor make
Qualcomm Snapdragon 480
-
RAM
6GB, 8GB
8GB
Internal storage
128GB
128GB
Expandable storage
Yes
-
Expandable storage type
microSD
-
camera
Rear camera
13-Ultrapixel (f/2.2) + 2-megapixel (f/2.4)
48-megapixel + 8-megapixel
No. of Rear Cameras
2
-
Front camera
8-megapixel (f/2.0)
Unspecified
No. of Front Cameras
1
-
Rear autofocus
-
Yes
Rear flash
-
Yes
Front flash
-
No
software
Operating system
Android 11
Android 9
Skin
ColorOS 11
ColorOS
connectivity
Wi-Fi
Yes
Yes
Wi-Fi standards supported
802.11 a/b/g/n/ac
802.11 a/b/g/n
GPS
Yes
Yes
Bluetooth
Yes, v 5.00
Yes
USB Type-C
Yes
-
Headphones
3.5mm
-
Number of SIMs
2
-
Active 4G on both SIM cards
-
Yes
sim 1
SIM Type
Nano-SIM
-
GSM/CDMA
GSM
-
3G
Yes
-
4G/ LTE
Yes
-
sim 2
SIM Type
Nano-SIM
-
GSM/CDMA
GSM
-
3G
Yes
-
4G/ LTE
Yes
-
sensors
Face unlock
Yes
-
Proximity sensor
Yes
Yes
Accelerometer
Yes
Yes
Fingerprint sensor
-
Yes
Compass/ Magnetometer
-
Yes
Ambient light sensor
-
Yes
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