OPPO F21 Pro 4G vs Oppo F31 5G

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Overview

Specs Score80 / 100
Better Specs
78 / 100
Display Resolution1080 x 2400 pixels1080 x 2412 pixels
Better Resolution
Rear Camera64 MP + 2 MP + 2 MP Triple
Better Camera Resolution
50 MP + 2 MP Dual
Front Camera32 MP
Better Front Camera Resolution
16 MP
Weight175 g
Lighter
Thickness7.5 mm
Slimmer
Battery4500 mAh7000 mAh
Bigger Battery
Unique Features
No
3.5mm Audio Jack
No
Memory Card Support
No
No
5G
No
Water Resistant
No
Reverse Charging
IR Blaster

General

Country of OriginIndia
ModelF21 ProCPH2781
Sim TypeDual Sim, GSM+GSMDual Sim, GSM+GSM (Hybrid Slot)
Dual SimYesYes
Sim SizeNano+Nano SIMNano+Nano SIM
Device TypeSmartphoneSmartphone
Release DateApril 12, 2022September 15, 2025
In The BoxHandset, Charger, USB Data Cable, Sim Ejector Tool, Quick Guide, Protective Case

Design

Dimensions73.2 x 159.9 x 7.5 mm
Weight175 g

Display

TypeColor AMOLED Screen (16.7M)Color AMOLED Screen (16M Colors)
TouchYesYes, 360 Hz Touch Sampling Rate
Size6.5 inches, 1080 x 2400 pixels, 90 Hz6.57 inches, 1080 x 2412 pixels, 120 Hz
Aspect Ratio20:920:9
PPI~ 409 PPI~ 402 PPI
Screen to Body Ratio~ 90.8%~ 92.2%
Glass TypeCorning Gorilla Glass 5AGC DT-Star D+
FeaturesNormal mode: 430 nits (Typical), High Brightness Mode: 600 nits (Typical), Vivid mode: 97% NTSC/95% DCI-P3, Gentle Mode: sRGB
NotchYes, Punch HoleYes, Punch Hole

Memory

RAM8 GB8 GB
Expandable RAMUpto 5 GB Extra Virtual RAMUpto 8 GB Extra Virtual RAM
Storage128 GB128 GB
Storage TypeUFS 2.2UFS 2.2
Card SlotYes, upto 256 GB

Connectivity

GPRSYesYes
EDGEYesYes
3GYesYes
4GYesYes
5GNoYes
5G Bandsn1/n3/n5/n7/n8/n20/n28A/n28B/n66/n38/n40/n41/n77/n78
VoLTEYes, Dual Stand-ByYes, Dual Stand-By
WifiYes, with wifi-hotspotYes, with wifi-hotspot
Wifi Version802.11 a/b/g/n/ac, Wi-Fi 5 (802.11 ac), 802.11 a/b/g/n, WLAN (2.4 GHz | 5 GHz), WLAN Display, WLAN Tethering, 1 x 1 SOSO
BluetoothYes, v5.1Yes, v5.4, Support SBC, AAC, aptX, aptX HD, LDAC, LHDC
USBYes, USB-CYes, USB-C v2.0
USB FeaturesUSB on-the-go, USB ChargingUSB on-the-go, USB Charging
IR BlasterYes

Extra

GPSBuilt-in GPS, A-GPS, BeiDou, GLONASS, Galileo, QZSSYes, with A-GPS, GLONASS, BDS, GALILEO, QZSS
Fingerprint SensorYes, In DisplayYes, Side
Face UnlockYesYes
SensorsGeomagnetic Sensor, Proximity Sensor, Optical Sensor, Accelerometer, Gravity Sensor, Gyroscope, Pedometer, CompassGeomagnetic Induction, Ambient Light Induction, Proximity Sensor, Acceleration Sensor, Gravity Sensor, Gyroscope, Infrared Sensor, Step Recording Function, Facial Recognition Sensor
3.5mm Headphone JackYesNo
AI FeaturesSmart Document (AI summaries, translations, rewriting), Smart Note (AI-enhanced note-taking), and high-quality scanning. Integrated Google Gemini delivers multimodal AI intelligence
Water ResistanceYes
IP RatingIP69+IP68+IP66
Dust ResistantYes
Extra Features4300 mm² VC cooling system

Camera

Rear Camera64 MP ƒ/1.7 (Wide Angle)
2 MP ƒ/3.3
Microscope
2 MP ƒ/2.4
Mono
50 MP ƒ/1.8 (Wide Angle)
Sensor: OV50D40, Sensor size: 1/2.88″, Single pixel size: 0.612 um, Aperture size: f/1.8, Focal length: 27 mm, Lens configuration: 5P, Supporting AF
2 MP
Sensor: GC02M1-C24YK, Sensor size: 1/5″, Single pixel size: 1.75 um, Aperture size: f/2.4, Focal length: 22 mm, Lens configuration: 3P
Auto FocusYesYes
FeaturesPanorama, Portrait, Time-lapse, Slow-motion, Text scanner, Google Lens, Extra HD, Macro, Sticker
Video Recording1080p, 720p1080p @ 30 fps FHD, 720p
FlashYes, LEDYes, LED
Front Camera32 MP ƒ/2.4
Punch Hole
16 MP (Wide Angle)
Sensor size: 1/3.09″, Single pixel size: 1.0 um, Aperture size: f/2.4, Focal length: 23 mm, Lens configuration: 4P
Punch Hole
Front Video Recording1080p1080p @ 30 fps FHD

Technical

OSAndroid v12Android v15
Custom UIColorOS 15
ChipsetQualcomm Snapdragon 680Mediatek Dimensity 6300
CPU2.4 GHz, Octa Core Processor2.4 GHz, Octa Core Processor
Core Details4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz
GPUAdreno 610Arm Mali-G57 MC2
JavaNoNo
BrowserYesYes

Multimedia

EmailYesYes
MusicYesYes
VideoYesYes
FM RadioNoNo
Document ReaderYesYes

Battery

TypeNon-Removable BatteryNon-Removable Battery
Size4500 mAh, Li-Po Battery7000 mAh
Fast ChargingYes, 33W Fast ChargingYes, 80W SUPERVOOC Charging
Reverse ChargingYes

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