Mid-range · 2025

Oppo F31

Our Take

CPU capability matches mid-range phones like Samsung Galaxy A27

Best for

Strength 80W fast charging, All-day battery (7000mAh)

Extras Rugged build, Cooling system

6.57″ AMOLED · 120Hz

6300 8 / 128 GB

7000 mAh 80W charging

50 MP 16 MP selfie

Compare

Full specifications

Display

6.57″ · AMOLED · 1080 × 2372 · 120 Hz

OLED + smooth

A clean OLED panel — colours pop and sunlight visibility is solid.

Screen size

6.57"

Panel type

AMOLED

OLED

Resolution

1080 × 2372 px

Refresh rate

120 Hz

Smooth

Colour depth

10-bit (1B colours)

10-bit

Brightness

1400 nits

HDR

Not listed

Protection

AGC DT-Star D+

Performance

Mediatek Dimensity 6300 (6 nm) · 8-core 2.4 GHz · Mali-G57 MC2

Everyday capable

Daily apps and casual games run smoothly — heavy gaming will drop frames.

Chipset

Mediatek Dimensity 6300 (6 nm)

Current CPU tier

Mid-range

AnTuTu

402,999

Kimovil · Antutu v10

CPU

8-core, 2.4 GHz

GPU

Mali-G57 MC2

Process

6 nm

RAM type

LPDDR4X RAM

Storage type

UFS Storage 2.2

CPU layout

2x2.4 GHz ARM Cortex A76 +6x2.0 GHz ARM Cortex A55

Software & updates

Android 15, ColorOS 15 · 2-year support (brand estimate)

How long the maker keeps shipping Android and security updates — the main thing that decides how many years this phone stays current.

Operating system

Android 15, ColorOS 15

Software support

2 years of updates (brand estimate)

Updates remaining

~1 year

Camera

50 MP f/1.8 main · 16 MP selfie

A standard camera setup — sharp in daylight, expect noise in low light.

Main camera

50 MP f/1.8

Front camera

16 MP f/2.4

Slow motion

Yes, 120 fps

Video

1080p @ 120 fps

Battery

7000 mAh · 80 W wired

Plenty

A genuinely all-day battery — comfortably handles streaming and social.

Capacity

7000 mAh

Wired charging

80 W

Fast

Removable

Audio

Stereo

Stereo speakers

Speakers

Stereo

Memory

8 GB RAM · 128 GB · expandable

RAM

8 GB

Storage

128 GB

Configurations

8/128GB · 8/256GB

Storage type

UFS 2.2

Expandable

Yes

Connectivity

5G · Wi-Fi 5

Yes

4G LTE

Yes

NFC

Wi-Fi

Wi-Fi 5

Bluetooth

5.4

GPS systems

GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, BeiDou (B1)

USB

USB-C 2.0

USB OTG

Yes

3.5mm jack

IR blaster

SIM

1× Nano-SIM

Network bands

4G works on all four carriers — 5G on MTN & Airtel

Radio bands decide whether this phone sees MTN, Glo, Airtel or 9mobile towers — and how strong the signal holds indoors.

M MTN

4G works · 5G works No B20 or B7 — weaker indoor signal, and slower speeds where the network is busy.

Works

A Airtel

4G full · 5G works

Full

G Glo

4G works No B28 — signal can get weak indoors and outside the big cities.

Works

9 9mobile

4G full

Full

The bands Nigerian networks use

B3 main band

M A G 9

B7 extra speed

B20 indoor reach

B28 indoor reach

n78 the 5G band

M A

The dots show which network uses each band. ✓ means this phone has it, ✗ means it doesn't.

All reported bands

2G B3, B8

3G B1, B8

4G B3, B5, B8, B19, B28b

5G n1, n3, n5, n8, n28b, n38, n40, n41, n77, n78

Build & Design

185 g · 8.0 mm · IP68

Built to last

Height

158.2 mm

Width

75.0 mm

Thickness

8.0 mm

Weight

185 g

IP rating

IP68

Water resistant

Sensors

Fingerprint (under display, optical) · accelerometer · proximity · compass

Sensors

Fingerprint (under display, optical), accelerometer, proximity, compass

Images and battery life estimates from GSMArena

How it stacks up against the rest.

A few phones around the same price, so you can see what this one does better and what it gives up.

Apple iPhone 17

Loses on most 1 win 4 losses

90% larger battery capacity

80 W vs 40 W charging · 7,000 mAh vs 3,692 mAh battery

Lower-resolution screen

AMOLED vs Dynamic AMOLED panel · 1080 × 2372 vs 1206 × 2622 resolution

Lower benchmark score

403k vs 2.1M AnTuTu · Mid-range vs Flagship tier

Less stable camera

No OIS vs OIS · 1080p @ 120 fps vs 4K @ 60 fps video

No NFC

No NFC vs NFC

Same AnTuTu version, different test sources - treat this as a rough comparison.

Full comparison

Samsung Galaxy S25

Loses on most 1 win 4 losses

75% larger battery capacity

80 W vs 25 W charging · 7,000 mAh vs 4,000 mAh battery

Weaker display tech

AMOLED vs Dynamic AMOLED panel · Tradeoff: 6.57″ vs 6.2″ screen

Lower benchmark score

403k vs 2.2M AnTuTu · Mid-range vs Flagship tier

Less stable camera

No OIS vs OIS · — vs Telephoto · OIS · 1080p @ 120 fps vs 8K @ 30 fps video

No NFC

No NFC vs NFC

Same AnTuTu version, different test sources - treat this as a rough comparison.

Full comparison

Where to buy

We don't have any listings for this phone yet. Try searching on Konga or Jiji.

Search on Konga Search on Jiji

Similar Phones

How each one compares to the Oppo F31.

Entry-level

Oppo A6 Pro

₦450,000 – ₦455,000

NFC included

6GB 128GB 7000mAh

Entry-level

Oppo A6 Pro 4G

₦390,000 – ₦391,000

NFC included

8GB 128GB 7000mAh

Entry-level

Oppo A6s Pro

Newer (2026) · NFC included

8GB 256GB 7000mAh

Entry-level

Oppo A6s Pro (China)

Newer (2026) · NFC included

8GB 128GB 7000mAh