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Realme P3x vs Vivo Y31

What P3x does better (8) and where Y31 wins (5) — every spec side by side.

Realme P3x
Realme · 2025P3x
7.4Score
8 advantages≈ $150
vs
Vivo Y31
Vivo · 2025Y31
7.4Score
5 advantages≈ $160
Higher score
6.7Display6.2
4.6Camera4.6
8.2Battery8.4
6.0Features6.7
Dimensions

Size comparison

P3xY31
76.2 × 165.77.977 × 166.18.4
P3xY31Difference
Height165.7 mm166.1 mm−0.4 mm
Width76.2 mm77 mm−0.8 mm
Thickness7.9 mm8.4 mm−0.5 mm
Weight197 g209 g−12 g

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

Why is P3x better than Y31?

  1. Pixel density392 ppi vs 264 ppi+48%
  2. Wired charging45 W vs 44 W+2%
  3. CPU frequency2.5 GHz vs 2.2 GHz+14%
  4. Weight197 g vs 209 g+6%
  5. Resolution (width)1,080 px vs 720 px+50%
  6. Bluetooth5.3 vs 4.2+26%
  7. Thickness7.9 mm vs 8.4 mm+6%
  8. Screen-to-body ratio86.3% vs 84%+3%

Why is Y31 better than P3x?

  1. Storage (max)128 GB vs 512 GB4×
  2. Stereo speakersNo · P3x: Yes
  3. Battery capacity6,000 mAh vs 6,500 mAh+8%
  4. Peak brightness950 nits vs 1,000 nits+5%
  5. Process6 nm vs 4 nm+50%
Specifications

Side by side

Realme P3xRealme P3x≈ $1507.4
Vivo Y31Vivo Y31≈ $1607.4
Design
Weight197 g209 g
Thickness7.9 mm8.4 mm
Height165.7 mm166.1 mm
Width76.2 mm77 mm
FrameAluminium—
BackSilicone polymer—
Ingress protectionIP68IP68
Water resistance (IPx)IPx8IPx8
Glass protectionArmorShell glassGuardian Glass (ion-strengthened)
ColoursMidnight Blue, Stellar Pink, Lunar SilverRose Red, Diamond Green
Display
Screen size6.7″6.7″
PanelIPS LCDIPS LCD
OLED panelNoNo
Resolution (width)1,080 px720 px
Resolution (height)2,400 px1,608 px
Pixel density392 ppi264 ppi
Refresh rate120 Hz120 Hz
Peak brightness950 nits1,000 nits
Screen-to-body ratio86.3%84%
Performance
ChipsetMediatek Dimensity 6400Qualcomm SM4450 Snapdragon 4 Gen 2
Chip makerMediaTekQualcomm
Process6 nm4 nm
CPU cores88
CPU frequency2.5 GHz2.2 GHz
GPUMali-G57 MC2Adreno 613
Memory
RAM8 GB8 GB
Storage (max)128 GB512 GB
Storage (base)128 GB128 GB
Storage typeeMMC 5.1eMMC 5.1
Memory card slotYesYes
Camera
Main camera50 MP50 MP
Main camera aperturef/1.8f/1.8
Rear cameras11
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera8 MP8 MP
4K selfie videoNoNo
Battery
Battery capacity6,000 mAh6,500 mAh
Battery typeSi/CLi-Ion
Wired charging45 W44 W
Charged in 30 min—39%
Wireless chargingNoNo
Connectivity
5GYesYes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 5
Bluetooth5.34.2
NFCNoNo
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 jackNoNo
Fingerprint sensorSideSide
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, proximity, compass
SAR (head)—1.13 W/kg
Software
OS at launchAndroid 15Android 15
PlatformAndroidAndroid
Interface—Funtouch 15
To compare: 0up to 4 models
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