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Nothing Phone (3a) vs OPPO F31

What Phone (3a) does better (13) and where F31 wins (8) — every spec side by side.

Nothing Phone (3a)
Nothing · 2025Phone (3a)
8.3Score
13 advantages≈ $390
vs
OPPO F31
OPPO · 2025F31
8.3Score
8 advantages≈ $340
Higher score
8.5Display8.2
8.3Camera5.5
6.4Battery9.2
6.9Features6.7
Dimensions

Size comparison

Phone (3a)F31
77.5 × 163.58.475 × 158.28
Phone (3a)F31Difference
Height163.5 mm158.2 mm+5.3 mm
Width77.5 mm75 mm+2.5 mm
Thickness8.4 mm8 mm+0.4 mm
Weight201 g185 g+16 g

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

Why is Phone (3a) better than F31?

  1. Peak brightness3,000 nits vs 1,400 nits2.1×
  2. RAM12 GB vs 8 GB+50%
  3. Optical stabilisationYes · F31: No
  4. Telephoto cameraYes · F31: No
  5. NFCYes · F31: No
  6. Rear cameras3 vs 13×
  7. Ultra-wide cameraYes · F31: No
  8. Max video4K vs 1080p
  9. Selfie camera32 MP vs 16 MP2×
  10. CPU frequency2.5 GHz vs 2.4 GHz+4%
  11. Screen size6.8″ vs 6.6″+3%
  12. Process4 nm vs 6 nm+50%

Why is F31 better than Phone (3a)?

  1. Battery capacity5,000 mAh vs 7,000 mAh+40%
  2. Wired charging50 W vs 80 W+60%
  3. Water resistance (IPx)IPx4 vs IPx82×
  4. Memory card slotNo · Phone (3a): Yes
  5. Weight201 g vs 185 g+9%
  6. Pixel density387 ppi vs 397 ppi+3%
  7. Main camera aperturef/1.9 vs f/1.8+6%
  8. Thickness8.4 mm vs 8 mm+5%
Specifications

Side by side

OPPO F31OPPO F31≈ $3408.3
Design
Weight201 g185 g
Thickness8.4 mm8 mm
Height163.5 mm158.2 mm
Width77.5 mm75 mm
FramePlastic—
BackGlass—
Ingress protectionIP64IP68
Water resistance (IPx)IPx4IPx8
Glass protectionPanda GlassAGC DT-Star D+
ColoursBlack, White, Blue, Community Edition greenMidnight Blue, Bloom Red, Cloud Green
Display
Screen size6.8″6.6″
PanelAMOLEDAMOLED
OLED panelYesYes
Resolution (width)1,080 px1,080 px
Resolution (height)2,392 px2,372 px
Pixel density387 ppi397 ppi
Refresh rate120 Hz120 Hz
Peak brightness3,000 nits1,400 nits
Measured brightness1,273 nits—
Screen-to-body ratio88%88.5%
HDRYes—
Performance
ChipsetQualcomm SM7635 Snapdragon 7s Gen 3Mediatek Dimensity 6300
Chip makerQualcommMediaTek
Process4 nm6 nm
CPU cores88
CPU frequency2.5 GHz2.4 GHz
GPUAdreno 810Mali-G57 MC2
AnTuTu score828,429—
Geekbench 6 (multi-core)3,278—
3DMark Wild Life Extreme1,064—
Memory
RAM12 GB8 GB
Storage (max)256 GB256 GB
Storage (base)128 GB128 GB
Storage typeUFS 2.2UFS 2.2
Memory card slotNoYes
Camera
Main camera50 MP50 MP
Main camera aperturef/1.9f/1.8
Main sensor size1/1.57"—
Rear cameras31
Optical stabilisationYesNo
Ultra-wide cameraYesNo
Telephoto cameraYesNo
Optical zoom2×—
Max video4K1080p
4K video frame rate30 fps—
Selfie camera32 MP16 MP
4K selfie videoNoNo
Battery
Battery capacity5,000 mAh7,000 mAh
Battery typeLi-PoSi/C
Active use (test)13.6 h—
Wired charging50 W80 W
Charged in 30 min79%—
Wireless chargingNoNo
Connectivity
5GYesYes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 6Wi-Fi 5
Bluetooth5.45.4
NFCYesNo
USBUSB Type-C 2.0USB Type-C 2.0
USB version22
Satellite navigationGLONASS, GALILEO, BDS, QZSSGLONASS, GALILEO, BDS, QZSS
Features
Stereo speakersYesYes
3.5 mm headphone jackNoNo
Loudspeaker loudness-24.1 LUFS—
Fingerprint sensorUnder displayUnder display
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, proximity, compass
SAR (head)—1.18 W/kg
Software
OS at launchAndroid 15Android 15
PlatformAndroidAndroid
InterfaceNothing OS 4.0ColorOS 15
Major OS updates promised3—
EU label
Energy classC—
Battery charge cycles1,400—
Endurance per cycle44 h—
Repairability classC—
Drop resistance classC—
To compare: 0up to 4 models
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