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InnoReviews

OPPO F31 Pro 5G vs Samsung Galaxy S21 Ultra

WINNER
OPPO F31 Pro 5G
55.4Inno Score
VS
Samsung Galaxy S21 Ultra
53.9Inno Score
46.7Performance37.2
55.2Display56.3
45.9Camera72
79.8Battery46.4
52Features78.7
4 spec wins — OPPO F31 Pro 5G7 spec wins — Samsung Galaxy S21 Ultra

InnoReviews verdict

OPPO F31 Pro 5G wins this phone face-off, 55.4 to 53.9, pulling ahead mainly in battery (+33) and performance (+10). Samsung Galaxy S21 Ultra still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the OPPO F31 Pro 5G

  • Stronger performance score: 47 vs 37
  • Stronger battery score: 80 vs 46
  • 220% higher Wired charging: 80 W vs 25 W
  • 40% higher capacity: 7,000 mAh vs 5,000 mAh
  • 17% lower weight: 190 g vs 228 g

Reasons to pick the Samsung Galaxy S21 Ultra

  • Stronger camera score: 72 vs 46
  • Stronger features score: 79 vs 52
  • 116% higher Main camera: 108 MP vs 50 MP
  • 100% higher OS update pledge: 4 years vs 2 years
  • 30% higher Pixel density: 515 ppi vs 397 ppi

Display

Display comparison: OPPO F31 Pro 5G versus Samsung Galaxy S21 Ultra
SpecOPPO F31 Pro 5GSamsung Galaxy S21 Ultra
Screen size6.57 ″6.8 ″+4%
Panel typeAMOLEDLTPO AMOLED
Resolution2372x10803200x1440
Pixel density397 ppi515 ppi+30%
Refresh rate120 Hz120 Hz
Peak brightness1,400 nits1,500 nits+7%
Screen-to-body93 %—

Performance

Performance comparison: OPPO F31 Pro 5G versus Samsung Galaxy S21 Ultra
SpecOPPO F31 Pro 5GSamsung Galaxy S21 Ultra
ChipsetDimensity 7300-EnergySamsung Exynos 2100
AnTuTu—783,817Bottom 22%
AnTuTu 11 (CPU)—263,424Bottom 17%
AnTuTu 11 (GPU)—126,989Bottom 33%
AnTuTu 11 (Memory)—165,563Bottom 35%
AnTuTu 11 (UX)—227,841Bottom 20%
Geekbench 6 (single)—1,430Top 46%
Geekbench 6 (multi)—3,550Bottom 50%
RAM (max)12 GB12 GB
Storage options128GB / 256GB128GB / 256GB / 512GB
Storage typeUFS 3.1UFS 3.1

Camera

Camera comparison: OPPO F31 Pro 5G versus Samsung Galaxy S21 Ultra
SpecOPPO F31 Pro 5GSamsung Galaxy S21 Ultra
Main camera50 MP108 MP+116%
Main aperturef/1.8f/1.8
Ultra-wide—12 MP
Telephoto—10 MP
Optical zoom—10 x
Max video4K@30fps8K@24fps
Front camera32 MP40 MP+25%
OISYesYes

Battery

Battery comparison: OPPO F31 Pro 5G versus Samsung Galaxy S21 Ultra
SpecOPPO F31 Pro 5GSamsung Galaxy S21 Ultra
Capacity7,000 mAh+40%5,000 mAh
Wired charging80 W+220%25 W
Wireless charging—15 W

Design

Design comparison: OPPO F31 Pro 5G versus Samsung Galaxy S21 Ultra
SpecOPPO F31 Pro 5GSamsung Galaxy S21 Ultra
Weight190 g+17%228 g
Thickness8 mm+10%8.9 mm
IP ratingIP66/IP68/IP69IP68
Frame materialAluminumAluminum

Connectivity

Connectivity comparison: OPPO F31 Pro 5G versus Samsung Galaxy S21 Ultra
SpecOPPO F31 Pro 5GSamsung Galaxy S21 Ultra
5GYesYes
Wi-FiWi-Fi 6Wi-Fi 6E
Bluetooth5.45.2
NFC—Yes
USBUSB-C 2.0USB-C 3.2
eSIMNoYes

Software

Software comparison: OPPO F31 Pro 5G versus Samsung Galaxy S21 Ultra
SpecOPPO F31 Pro 5GSamsung Galaxy S21 Ultra
OS at launchAndroid 15 (ColorOS 15)Android 11 (One UI 3.1)
OS update pledge2 years4 years+100%

Audio

Audio comparison: OPPO F31 Pro 5G versus Samsung Galaxy S21 Ultra
SpecOPPO F31 Pro 5GSamsung Galaxy S21 Ultra
Stereo speakersYesYes
3.5mm jackNoNo

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