Oppo F31 5G vs Vivo S1


Quick Comparison


Oppo F31 5G has better RAM than Vivo S1. In terms of display resolution, Oppo F31 5G has better resolution of 2412 x 1080 than Vivo S1 which has resolution of 2340 x 1080. Both have the same amount of internal memory.

NameOppo F31 5GVivo S1
RAM8 GB4 GB
Display6.57 in6.38 in
Internal Memory128 GB128 GB
Battery7000 mAh4500 mAh
Camera50 MP + 2 MP Dual16 MP + 8 MP + 2 MP Triple
PriceRs. 26999Rs. 8999

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Detailed Comparison


Price And Launch

The launch Date of the first phone is September 15, 2025. The cost of Oppo F31 5G is Rs. 26999. The launch Date of the second phone is August 7, 2019. The cost of Vivo S1 is Rs. 8999.

Display comparison

Vivo S1 has screen size of 6.38 inches which falls short to Oppo F31 5G's 6.57 inch screen. Oppo F31 5G has AMOLED Screen type where as Vivo S1 has Super AMOLED Screen type. Vivo's phone has display density of 404 PPI & OPPO's phone has only 402 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 92.2% than Vivo's phone ~ 83.3%. Oppo F31 5G has 20:9 aspect ratio where as Vivo S1 has 19.5:9 aspect ratio.

Memory comparison

Oppo F31 5G's larger 8 GB RAM is better for playing games and all with respect to Vivo S1's lower 4 GB RAM. and both have same Internal Memory of 128 GB.

Camera comparison

Oppo F31 5G's 50 MP + 2 MP Dual Rear Camera outshines Vivo S1's 16 MP + 8 MP + 2 MP Triple Rear Camera in terms of resolution. Vivo S1 will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to Oppo F31 5G's 16 MP Front Camera.

Technical comparison

Both the phones has Android Operating System but the first one runs on version 15 and the second one on 9.0 version.

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Full Comparison


NameOppo F31 5GVivo S1
General
Country of OriginIndia
ModelCPH2781S1
Sim TypeDual Sim, GSM+GSM (Hybrid Slot)Dual Sim, GSM+GSM
Dual SimYesYes
Sim SizeNano+Nano SIMNano SIM
Device TypeSmartphoneSmartphone
Release DateSeptember 15, 2025August 7, 2019
In The BoxHandset, Charger, USB Data Cable, Sim Ejector Tool, Quick Guide, Protective Case
Design
Dimensions75.2 x 159.5 x 8.1 mm
Weight179 g
Display
TypeColor AMOLED Screen (16M Colors)Color Super AMOLED Screen (16M Colors)
TouchYes, 360 Hz Touch Sampling RateYes
Size6.57 inches, 1080 x 2412 pixels, 120 Hz6.38 inches, 1080 x 2340 pixels
Aspect Ratio20:919.5:9
PPI~ 402 PPI~ 404 PPI
Screen to Body Ratio~ 92.2%~ 83.3%
Glass TypeAGC DT-Star D+
FeaturesFull HD+, Always-on display
NotchYes, Punch HoleYes, Water Drop Notch
Memory
RAM8 GB4 GB
Expandable RAMUpto 8 GB Extra Virtual RAM
Storage128 GB128 GB
Storage TypeUFS 2.2
Card SlotYes, (Hybrid Slot)Yes, upto 256 GB
Connectivity
GPRSYesYes
EDGEYesYes
3GYesYes
4GYesYes
5GYes
5G Bandsn1/n3/n5/n7/n8/n20/n28A/n28B/n66/n38/n40/n41/n77/n78
VoLTEYes, Dual Stand-ByYes
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, v5.4, Support SBC, AAC, aptX, aptX HD, LDAC, LHDCYes, v5.0
USBYes, USB-C v2.0Yes, microUSB v2.0
USB FeaturesUSB on-the-go, USB ChargingUSB on-the-go
IR BlasterYes
Extra
GPSYes, with A-GPS, GLONASS, BDS, GALILEO, QZSSYes, with A-GPS, GLONASS, GALILEO, BDS
Fingerprint SensorYes, SideYes, In Display
Face UnlockYesYes
SensorsGeomagnetic Induction, Ambient Light Induction, Proximity Sensor, Acceleration Sensor, Gravity Sensor, Gyroscope, Infrared Sensor, Step Recording Function, Facial Recognition SensorAccelerometer, Proximity, Compass, Gyroscope, Ambient Light Sensor
3.5mm Headphone JackNoYes
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 Camera50 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
16 MP ƒ/1.8 (Wide Angle)
8 MP ƒ/2.2 (Ultra Wide)
2 MP ƒ/2.4 (Depth Sensor)
Auto FocusYesYes
FeaturesHDR, Panorama
Video Recording1080p @ 30 fps FHD, 720p1080p @ 30 fps FHD
FlashYes, LEDYes, LED
Front Camera16 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
32 MP ƒ/2
Front Video Recording1080p @ 30 fps FHD1080p @ 30 fps FHD
Technical
OSAndroid v15Android v9.0 (Pie)
Custom UIColorOS 15
ChipsetMediatek Dimensity 6300Mediatek Helio P65
CPU2.4 GHz, Octa Core Processor2 GHz, Octa Core Processor
Core Details2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz2 GHz, Dual core, Cortex A75 + 1.7 GHz, Hexa Core, Cortex A55
GPUArm Mali-G57 MC2Mali-G52 MC2
JavaNoNo
BrowserYesYes, supports HTML5
Multimedia
EmailYesYes
MusicYesYes
VideoYesYes
FM RadioNoYes
Document ReaderYesYes
Battery
TypeNon-Removable BatteryNon-Removable Battery
Size7000 mAh4500 mAh, Li-Po Battery
Fast ChargingYes, 80W SUPERVOOC ChargingYes, 18W Dual-Engine Fast Charging
Reverse ChargingYes

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