Oppo A55 vs Vivo Y21d
Short Description
Oppo A55
Screen size: 6.51" / Resolution: 720 x 1600 px / Main camera: 50 MP & 2 MP & 2 MP / Front camera: 16MP / RAM: 4GB, 6GB / Battery power: 5000 mAh / Internal storage: 64GB, 128GB / SIM cards: 2 SIM
Vivo Y21d
Screen size: 6.68" / Resolution: 720 x 1608 px / Main camera: 50 MP / Front camera: 5MP / RAM: 4GB, 6GB, 8GB / Battery power: 6500 mAh / Internal storage: 128GB, 256GB / SIM cards: 2 SIM
Key Differences
Oppo A55
Vivo Y21d
How is Oppo A55 better than Vivo Y21d?
Faster CPU speed: 4 x 2.3 GHz & 4 x 1.8 GHz vs 2 x 1.8 GHz & 6 x 1.8 GHz
More megapixels front camera: 16MP vs 5MP
Lighter: 193 g (6.81 ounces) vs 209 g (7.37 ounces)
Narrower: 75.7 mm (2.98 inches) vs 77 mm (3.03 inches)
Shorter: 163.6 mm (6.44 inches) vs 166.1 mm (6.54 inches)
More color options: Rainbow Blue, Starry Black, Green vs Lavender Purple, Black
Oppo A55
Vivo Y21d
How is Vivo Y21d better than Oppo A55?
Bigger battery capacity: 6500 mAh vs 5000 mAh
More RAM memory capacity in max option: 4GB, 6GB, 8GB vs 4GB, 6GB
More internal storage in max option: 128GB, 256GB vs 64GB, 128GB
Has a larger display diagonal: 6.68" vs 6.51"
Better display resolution: 720 x 1608 px vs 720 x 1600 px
Higher charging speed: 44W vs 18W
The phone is 4 years newer
Size Comparison
Oppo A55
Vivo Y21d
Height
163.6 mm
(6.44 inches)
Width
75.7 mm
(2.98 inches)
Thickness
8.4 mm
(0.33 inches)
Screen size
6.51"
Weight
193 g
(6.81 ounces)
6.51"
6.68"
Height
166.1 mm
(6.54 inches)
Width
77 mm
(3.03 inches)
Thickness
8.4 mm
(0.33 inches)
Screen size
6.68"
Weight
209 g
(7.37 ounces)
Height
163.6 mm
(6.44 inches)
Width
75.7 mm
(2.98 inches)
Thickness
8.4 mm
(0.33 inches)
Screen size
6.51"
Weight
193 g
(6.81 ounces)
Height
166.1 mm
(6.54 inches)
Width
77 mm
(3.03 inches)
Thickness
8.4 mm
(0.33 inches)
Screen size
6.68"
Weight
209 g
(7.37 ounces)
Vote for Your option
Oppo A55
Vote for Your option
Vivo Y21d
Technical Specifications
Show differences
Show differences
Specs
Oppo A55
Vivo Y21d
Design
Weight
193 g (6.81 ounces)
209 g (7.37 ounces)
Thickness
8.4 mm (0.33 inches)
8.4 mm (0.33 inches)
Width
75.7 mm (2.98 inches)
77 mm (3.03 inches)
Height
163.6 mm (6.44 inches)
166.1 mm (6.54 inches)
Is weather-sealed (splashproof)
✔
-
Ingress Protection (IP) rating
-
IP68
Waterproof depth rating
-
6 m
Volume
104.03 cm³
107.43 cm³
Color options
Rainbow Blue, Starry Black, Green
Lavender Purple, Black
Water resistance
-
Waterproof
Display
Screen size
6.51"
6.68"
Display type
IPS, LCD
LCD, IPS
Pixel density
270 ppi
264 ppi
Resolution
720 x 1600 px
720 x 1608 px
Refresh rate
-
90Hz
Brightness (typical)
480 nits
-
Has branded damage-resistant glass
-
✔
Has a touch screen
✔
✔
Performance
Internal storage
64GB, 128GB
128GB, 256GB
RAM
4GB, 6GB
4GB, 6GB, 8GB
Android version
Android 11
Android 15
CPU speed
4 x 2.3 GHz & 4 x 1.8 GHz
2 x 1.8 GHz & 6 x 1.8 GHz
GPU clock speed
650 MHz
-
Has integrated LTE
✔
✔
RAM speed
1600 MHz
-
Semiconductor size
12 nm
-
Supports 64-bit
✔
-
DirectX version
DirectX 12
-
Has integrated graphics
✔
-
OpenGL ES version
3.2
-
Uses big.LITTLE technology
✔
-
CPU threads
8 threads
-
Uses HMP
✔
-
Has TrustZone
✔
-
Maximum memory bandwidth
14.9 GB/s
12.8 GB/s
OpenCL version
1.2
-
EMMC version
5.1
-
DDR memory version
4
-
Maximum memory amount
6GB
-
GPU execution units
2
-
Thermal Design Power (TDP)
2.2W
-
Release date
-
2026
Has NX bit
✔
-
Memory channels
2
-
Has an external memory slot
✔
✔
GPU turbo
680 MHz
614.4 MHz
Bits executed at a time
128
-
VFP version
4
-
Cameras
Main camera
50 MP & 2 MP & 2 MP
50 MP
Front camera
16MP
5MP
Video recording (main camera)
1080 x 30 fps
1080 x 30 fps
Wide aperture (main camera)
f/1.8 & f/2.4 & f/2.4
f/1.8
Has a dual-tone LED flash
✔
-
Has a BSI sensor
✔
-
Has continuous autofocus when recording movies
✔
✔
Has phase-detection autofocus for photos
✔
✔
Supports slow-motion video recording
✔
✔
Has a built-in HDR mode
✔
-
Has a flash
✔
✔
Has manual exposure
✔
✔
Optical zoom
-
0x
Number of flash LEDs
2
1
Has a CMOS sensor
✔
✔
Has manual ISO
✔
✔
Has a serial shot mode
✔
✔
Has manual focus
✔
✔
Has a front camera
✔
✔
Has manual white balance
✔
✔
Has touch autofocus
✔
✔
Can create panoramas in-camera
✔
✔
Wide aperture (front camera)
f/2.0
f/2.2
Has timelapse function
✔
✔
Operating system
Has clipboard warnings
-
✔
Has location privacy options
-
✔
Has camera/microphone privacy options
-
✔
Has theme customization
✔
✔
Can play games while they download
-
✔
Has dark mode
✔
✔
Has Wi-Fi password sharing
✔
-
Has battery health check
-
✔
Has an extra dim mode
-
✔
Has focus modes
✔
-
Has dynamic theming
-
✔
Can offload apps
-
✔
Has customizable notifications
✔
✔
Supports split screen
✔
✔
Supports instant markup
✔
-
Supports PiP and PaP
✔
-
Has sharing intents
✔
✔
Has a child lock
✔
✔
Supports widgets
-
✔
Is free and open source
✔
✔
Tracks the current position of a mobile device
✔
✔
Is a multi-user system
✔
✔
Can block app tracking
-
✔
Has on-device machine learning
-
✔
Has Live Text
-
✔
Supports widgets
✔
-
More languages supported
125
-
Has offline voice recognition
✔
✔
The browser has word wrap
✔
-
Has voice commands
✔
✔
Has notification permissions
-
✔
Has media picker
-
✔
Has full-page screenshots
-
✔
Has PiP
-
✔
Battery
Battery power
5000 mAh
6500 mAh
Supports fast charging
✔
✔
Charging speed
18W
44W
Has a battery level indicator
✔
✔
Has a rechargeable battery
✔
✔
Comes with a charger
-
✔
Audio
Has stereo speakers
-
✔
Has aptX
✔
-
Has a socket for a 3.5 mm audio jack
✔
-
Features
Wi-Fi version
Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Download speed
300 MBits/s
300 MBits/s
Upload speed
150 MBits/s
100 MBits/s
Has USB Type-C
✔
✔
USB version
2
2
SIM cards
2 SIM
2 SIM
Has a fingerprint scanner
✔
✔
Bluetooth version
5
5.2
Has a gyroscope
✔
-
Has GPS
✔
✔
Has a compass
✔
✔
Supports Wi-Fi
✔
✔
Has a cellular module
✔
✔
Supports Galileo
✔
✔
Has an accelerometer
✔
✔
Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Vote for Your option
Oppo A55
Vote for Your option
Vivo Y21d
Popular Oppo A55 comparisons
Oppo A55 vs Oppo A57
See comparison
Oppo A55 vs Samsung Galaxy A54
See comparison
Oppo A55 vs Oppo A17
See comparison
Oppo A55 vs Oppo A16
See comparison
