Oppo A78 vs Vivo Y21d
Short Description
Oppo A78
Screen size: 6.56" / Resolution: 720 x 1612 px / Main camera: 50 MP & 2 MP / Front camera: 8MP / RAM: 4GB, 8GB / Battery power: 5000 mAh / Has 5G support: ✔ / Internal storage: 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 A78
Vivo Y21d
How is Oppo A78 better than Vivo Y21d?
Faster CPU speed: 2 x 2.2 GHz & 6 x 2 GHz vs 2 x 1.8 GHz & 6 x 1.8 GHz
More megapixels front camera: 8MP vs 5MP
Better display resolution: 720 x 1612 px vs 720 x 1608 px
Lighter: 188 g (6.63 ounces) vs 209 g (7.37 ounces)
Narrower: 75.1 mm (2.96 inches) vs 77 mm (3.03 inches)
Shorter: 163.8 mm (6.45 inches) vs 166.1 mm (6.54 inches)
Oppo A78
Vivo Y21d
How is Vivo Y21d better than Oppo A78?
Bigger battery capacity: 6500 mAh vs 5000 mAh
More internal storage in max option: 128GB, 256GB vs 128GB
Has a larger display diagonal: 6.68" vs 6.56"
Higher charging speed: 44W vs 33W
The phone is 2 years and 8 months newer
Size Comparison
Oppo A78
Vivo Y21d
Height
163.8 mm
(6.45 inches)
Width
75.1 mm
(2.96 inches)
Thickness
8 mm
(0.31 inches)
Screen size
6.56"
Weight
188 g
(6.63 ounces)
6.56"
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
163.8 mm
(6.45 inches)
Width
75.1 mm
(2.96 inches)
Thickness
8 mm
(0.31 inches)
Screen size
6.56"
Weight
188 g
(6.63 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 A78
Vote for Your option
Vivo Y21d
Technical Specifications
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Specs
Oppo A78
Vivo Y21d
Design
Weight
188 g (6.63 ounces)
209 g (7.37 ounces)
Thickness
8 mm (0.31 inches)
8.4 mm (0.33 inches)
Width
75.1 mm (2.96 inches)
77 mm (3.03 inches)
Height
163.8 mm (6.45 inches)
166.1 mm (6.54 inches)
Is weather-sealed (splashproof)
✔
-
Ingress Protection (IP) rating
IP54
IP68
Waterproof depth rating
-
6 m
Volume
98.41 cm³
107.43 cm³
Color options
Glowing Black, Glowing Purple
Lavender Purple, Black
Water resistance
-
Waterproof
Display
Screen size
6.56"
6.68"
Display type
LCD, IPS
LCD, IPS
Pixel density
269 ppi
264 ppi
Resolution
720 x 1612 px
720 x 1608 px
Refresh rate
90Hz
90Hz
Brightness (typical)
480 nits
-
Has branded damage-resistant glass
-
✔
Has a touch screen
✔
✔
Performance
Internal storage
128GB
128GB, 256GB
RAM
4GB, 8GB
4GB, 6GB, 8GB
Android version
Android 12
Android 15
CPU speed
2 x 2.2 GHz & 6 x 2 GHz
2 x 1.8 GHz & 6 x 1.8 GHz
Has integrated LTE
✔
✔
RAM speed
2133 MHz
-
Semiconductor size
7 nm
-
Supports 64-bit
✔
-
DirectX version
DirectX 12
-
Has integrated graphics
✔
-
OpenGL ES version
3.2
-
Uses big.LITTLE technology
✔
-
CPU threads
8 threads
-
Has TrustZone
✔
-
Maximum memory bandwidth
17.07 GB/s
12.8 GB/s
OpenCL version
2
-
DDR memory version
4
-
Maximum memory amount
12GB
-
Thermal Design Power (TDP)
10W
-
Shading units
32
-
Release date
2023
2026
Has an external memory slot
✔
✔
GPU turbo
950 MHz
614.4 MHz
Has NX bit
✔
-
Memory channels
2
-
Cameras
Main camera
50 MP & 2 MP
50 MP
Front camera
8MP
5MP
Video recording (main camera)
1080 x 30 fps
1080 x 30 fps
Wide aperture (main camera)
f/2.4 & f/1.8
f/1.8
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
✔
✔
Has a dual-lens (or multi-lens) main camera
✔
-
Optical zoom
-
0x
Number of flash LEDs
1
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
✔
✔
Has scrolling screenshots
✔
-
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 PiP
-
✔
Has notification permissions
-
✔
Has media picker
-
✔
Has full-page screenshots
-
✔
Battery
Battery power
5000 mAh
6500 mAh
Supports fast charging
✔
✔
Charging speed
33W
44W
Has an ultra power-saving mode
✔
-
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
Has 5G support
✔
-
Wi-Fi version
Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Download speed
1200 MBits/s
300 MBits/s
Upload speed
210 MBits/s
100 MBits/s
Has USB Type-C
✔
✔
USB version
2
2
Has NFC
✔
-
SIM cards
2 SIM
2 SIM
Has a fingerprint scanner
✔
✔
Bluetooth version
5.3
5.2
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 A78
Vote for Your option
Vivo Y21d
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