Oppo F31 Pro vs Vivo V20 2021 256gb

Key Specs

Battery
-	4000 mAh
Display
-	6.44 inches (16.36 cm)
Front Camera
-	44 MP
Processor
-	Qualcomm Snapdragon 730
RAM
-	8 GB
Rear Camera
-	64 MP + 8 MP + 2 MP

Battery

Capacity
5500mAh	4000 mAh
Quick Charging
80W SuperVOOC fast charging	Yes, Flash, 33W: 65 % in 30 minutes
Removable
-	No
Type
-	Li-ion
USB Type-C
Yes	Yes

Camera

Front Camera
32MP	-
Rear Camera
50MP + 8MP + 2MP	-

Design

Build Material
Aerospace-grade aluminum alloy	Back: Mineral Glass
Colours
Gemstone Blue, Himalayan White, Festival Pink	Midnight Jazz, Sunset Melody
Height
-	161.3 mm
Thickness
-	7.38 mm
Water Resistance
IP68 and IP69 ratings	-
Weight
-	171 grams
Width
-	74.2 mm

Display

Aspect Ratio
-	20:9
Bezel-less display
-	Yes with waterdrop notch
Display Type
FHD+ AMOLED	AMOLED
Pixel Density
-	409 ppi
Refresh Rate
120Hz	-
Resolution
-	1080x2400 px (FHD+)
Screen Size
6.78-inch	6.44 inches (16.36 cm)
Screen to Body Ratio (calculated)
-	83.66 %
Touch Screen
-	Yes, Capacitive Touchscreen, Multi-touch

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Front Camera

Camera Setup
-	Single
Resolution
-	44 MP f/2.0, Wide Angle, Primary Camera

General

Brand
Oppo	vivo
Custom UI
ColorOS 15	Funtouch OS
Launch Date
September 15, 2025	March 10, 2021 (Official)
Model
F31 Pro	-
Operating System
Android 15	Android v11

Main Camera

Autofocus
-	Yes
Camera Features
-	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
-	Triple
Flash
-	Yes, Dual-color LED Flash
Image Resolution
-	9000 x 7000 Pixels
Resolution
-	64 MP f/1.89, Wide Angle, Primary Camera(26 mm focal length, 1.7" sensor size, 0.8µm pixel size)8 MP f/2.2, Ultra-Wide Angle Camera(16 mm focal length, 4.0" sensor size, 1.12µm pixel size)2 MP f/2.4, Mono Camera
Settings
-	Exposure compensation, ISO control
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	3840x2160 @ 30 fps

Multimedia

Audio Jack
-	3.5 mm
Loudspeaker
-	Yes

Network & Connectivity

Bluetooth
5.3	Yes, v5.1
GPS
-	Yes with A-GPS, Glonass
Network Support
5G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SIM 1
-	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
-	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
-	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual SIM	Dual SIM, GSM+GSM
USB Connectivity
-	Mass storage device, USB charging
VoLTE
-	Yes
Wi-Fi
Wi-Fi 6E	Yes, Wi-Fi 5 (802.11 b/g/n/ac) 5GHz
Wi-Fi Features
-	Mobile Hotspot

Performance

Architecture
-	64 bit
CPU
-	Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Chipset
-	Qualcomm Snapdragon 730
Fabrication
-	8 nm
Graphics
-	Adreno 618
Processor
MediaTek Dimensity 9300+ (4nm, octa-core)	-
Processor Fabrication
4 nm	-
RAM
8GB or 12GB	8 GB

Sensors

Fingerprint Sensor
Under-display	Yes
Fingerprint Sensor Position
-	On-screen
Fingerprint Sensor Type
-	Optical
Other Sensors
-	Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Storage

Expandable Memory
expandable via microSD	Yes, Up to 1 TB
Internal Memory
128GB or 256GB	256 GB
USB OTG
-	Yes