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OPPO A5 4G vs Vivo Y31

What A5 4G does better (8) and where Y31 wins (8) — every spec side by side.

OPPO A5 4G
OPPO · 2025A5 4G
6.9Score
8 advantages≈ $160
vs
Vivo Y31
Vivo · 2025Y31
7.4Score
8 advantages≈ $160
Higher score
5.3Display6.2
4.1Camera4.6
8.2Battery8.4
5.8Features6.7
Dimensions

Size comparison

A5 4GY31
76.2 × 165.7877 × 166.18.4
A5 4GY31Difference
Height165.7 mm166.1 mm−0.4 mm
Width76.2 mm77 mm−0.8 mm
Thickness8 mm8.4 mm−0.4 mm
Weight193 g209 g−16 g

Drawn to the same scale from the official dimensions (front and side).

Why is A5 4G better than Y31?

  1. NFCYes · Y31: No
  2. Wired charging45 W vs 44 W+2%
  3. Rear cameras2 vs 12×
  4. 3.5 mm headphone jackYes · Y31: No
  5. Weight193 g vs 209 g+8%
  6. Bluetooth5 vs 4.2+19%
  7. Charged in 30 min42% vs 39%+8%
  8. Thickness8 mm vs 8.4 mm+5%

Why is Y31 better than A5 4G?

  1. Storage (max)256 GB vs 512 GB2×
  2. Stereo speakersNo · A5 4G: Yes
  3. Refresh rate90 Hz vs 120 Hz+33%
  4. Battery capacity6,000 mAh vs 6,500 mAh+8%
  5. Water resistance (IPx)IPx5 vs IPx8+60%
  6. Process11 nm vs 4 nm2.8×
  7. CPU frequency2.1 GHz vs 2.2 GHz+5%
  8. Selfie camera5 MP vs 8 MP+60%
Specifications

Side by side

OPPO A5 4GOPPO A5 4G≈ $1606.9
Vivo Y31Vivo Y31≈ $1607.4
Design
Weight193 g209 g
Thickness8 mm8.4 mm
Height165.7 mm166.1 mm
Width76.2 mm77 mm
Ingress protectionIP65IP68
Water resistance (IPx)IPx5IPx8
Glass protectionCorning Gorilla Glass 7iGuardian Glass (ion-strengthened)
ColoursMidnight Purple, Aurora Green, Mist WhiteRose Red, Diamond Green
Display
Screen size6.7″6.7″
PanelIPS LCDIPS LCD
OLED panelNoNo
Resolution (width)720 px720 px
Resolution (height)1,604 px1,608 px
Pixel density264 ppi264 ppi
Refresh rate90 Hz120 Hz
Peak brightness1,000 nits1,000 nits
Screen-to-body ratio84.9%84%
Performance
ChipsetQualcomm SM-6115 Snapdragon 6s 4G Gen1Qualcomm SM4450 Snapdragon 4 Gen 2
Chip makerQualcommQualcomm
Process11 nm4 nm
CPU cores88
CPU frequency2.1 GHz2.2 GHz
GPUAdreno 610Adreno 613
Memory
RAM8 GB8 GB
Storage (max)256 GB512 GB
Storage (base)128 GB128 GB
Storage typeUFS 2.1eMMC 5.1
Memory card slotYesYes
Camera
Main camera50 MP50 MP
Main camera aperturef/1.8f/1.8
Rear cameras21
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera5 MP8 MP
4K selfie videoNoNo
Battery
Battery capacity6,000 mAh6,500 mAh
Battery type—Li-Ion
Wired charging45 W44 W
Charged in 30 min42%39%
Wireless chargingNoNo
Connectivity
5G—Yes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 5
Bluetooth54.2
NFCYesNo
USBUSB Type-C 2.0USB Type-C 2.0
USB version22
Satellite navigationGLONASS, GALILEO, BDS, QZSSGLONASS, GALILEO, BDS, QZSS
Features
Stereo speakersNoYes
3.5 mm headphone jackYesNo
Fingerprint sensorSideSide
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (side-mounted), accelerometer, proximity, compass
SAR (head)—1.13 W/kg
Software
OS at launchAndroid 15Android 15
PlatformAndroidAndroid
InterfaceColorOS 15Funtouch 15
EU label
Energy classA—
Battery charge cycles1,600—
Endurance per cycle64 h—
Repairability classB—
Drop resistance classA—
To compare: 0up to 4 models
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