OPPO · CPH2781
OPPO F31 5G
OPPO F31 5G is a 6.57-inch 5G smartphone with the MediaTek Dimensity 6300 chip, a 50 MP main camera and a 7,000 mAh battery. It launched in India in September 2025.
In short
OPPO F31 5G is a phone from OPPO, released September 2025. Its Comparezi Score is 45.2 out of 100, ranked #105 of 347 phones. Key specifications: display size 6.57", processor MediaTek Dimensity 6300, RAM 8 GB. Among phones here it fits best for light and compact.
Should you buy it now?
Not enough price history yet
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- Display size
- 6.57"
- Processor
- MediaTek Dimensity 6300
- RAM
- 8 GB
- Main camera
- 50 MP
- Battery
- 7,000 mAh
Variants
Where to buy
No current price recorded from any seller in India.
Comparezi Score
How the 45.2 was computed
| Factor | This product | Position in category | Weight | Points |
|---|---|---|---|---|
| Battery | 7,000 mAh |
51%
|
11.3 | |
| RAM | 8 GB |
43%
|
7.1 | |
| 5G | Yes | has it | 5.6 | |
| Refresh rate | 120 Hz |
57%
|
5.1 | |
| Charging speed | 80 W |
64%
|
4.9 | |
| Weight | 185 g |
72%
|
4.0 | |
| Main camera | 50 MP |
22%
|
3.6 | |
| Storage | 128 GB |
20%
|
2.2 | |
| Display size | 6.57" |
24%
|
1.3 |
Each factor is placed between the lowest and highest value in Phones (0-100 %), multiplied by its weight, and summed. It is a computed figure, not a rating, and never uses reviews.
Pros
- IP68 + IP69 dust and water resistance
- Light at 185 g
Who should buy it
- Best for Light and compact · What matters most? (pick any) #41 of 368 phones for this
Full specifications
Display
| Display size | 6.57" |
|---|---|
| Display type | AMOLED |
| Resolution | 2372 x 1080 |
| Refresh rate | 120 Hz |
| Peak brightness | 1,400 nits |
| Brightness measured as | High brightness mode, HBM |
Performance
| Processor | MediaTek Dimensity 6300 |
|---|---|
| Chipset process | 6 nm |
| RAM | 8 GB |
| Storage | 128 GB |
| Memory options | 8 GB + |
Camera
| Main camera | 50 MP |
|---|---|
| Front camera | 16 MP |
Battery
| Battery | 7,000 mAh |
|---|---|
| Charging speed | 80 W |
Software
| Operating system | Android |
|---|---|
| Software | Android 15, ColorOS 15 |
| OS updates promised | 2 |
| OS updates counted in | Years |
| Security updates promised | 3 years |
Build
| Weight | 185 g |
|---|---|
| 5G | Yes |
| Water resistance | IP68 + |
| SIM | Dual SIM (Nano-SIM) |
| Colours | Midnight Blue, Bloom Red, Cloud Green |
About the F31 5G
OPPO F31 5G is a 6.57-inch 5G smartphone with the MediaTek Dimensity 6300 chip, a 50 MP main camera and a 7,000 mAh battery. It launched in India in September 2025. It is one of 38 OPPO phones and 368 phones compared on Comparezi.
OPPO F31 5G at a glance
- Display: 6.57-inch AMOLED, 120 Hz
- Processor: MediaTek Dimensity 6300
- Memory: 8 GB + 128 GB, 8 GB + 256 GB
- Cameras: a 50 MP main rear camera and a 16 MP front camera
- Battery: 7,000 mAh, 80 W wired charging
- Software (as listed): Android 15, ColorOS 15
- Updates: 2 years of OS updates and 3 years of security updates
- Water and dust: IP68 + IP69
- Weight: 185 g
Display
The OPPO F31 5G has a 6.57-inch AMOLED screen with a resolution of 2372 x 1080. It refreshes at up to 120 Hz. OPPO quotes a peak brightness of 1,400 nits (measured as high brightness mode, HBM). Brands measure peak brightness in different ways (full screen, a small bright area, high brightness mode), so Comparezi does not rank phones on this figure.
Performance and memory
It runs on the MediaTek Dimensity 6300, built on a 6 nm process. Memory options: 8 GB + 128 GB, 8 GB + 256 GB.
Cameras
The main camera has a 50 MP sensor. The front camera is 16 MP.
Battery and charging
The battery is rated at 7,000 mAh, larger than 74 % of the 359 phones Comparezi has this figure for. Wired charging is rated at up to 80 W, faster than 71 % of the 338 phones Comparezi has this figure for.
Software and updates
OPPO lists its software as Android 15, ColorOS 15. OPPO promises 2 years of OS updates and 3 years of security updates.
Design and durability
It weighs 185 g, lighter than 83 % of the 343 phones Comparezi has this figure for. It is rated IP68 + IP69: dust-tight and protected against continuous immersion and high-pressure, high-temperature water jets. It supports 5G. SIM: Dual SIM (Nano-SIM). Colours: Midnight Blue, Bloom Red, Cloud Green.
Who should buy the OPPO F31 5G
On its published specifications, the OPPO F31 5G suits buyers who prioritise long battery life and a light phone (185 g).
Strengths
- IP68 + IP69 dust and water resistance
- Light at 185 g
How the OPPO F31 5G compares
The phones closest to it on specifications, from other brands:
- realme 15T 5G: wired charging 80 W on the OPPO F31 5G vs 60 W on the realme 15T 5G. OPPO F31 5G vs realme 15T 5G: full comparison
- vivo Y400 5G: battery 7,000 mAh on the OPPO F31 5G vs 6,000 mAh on the vivo Y400 5G; wired charging 80 W on the OPPO F31 5G vs 90 W on the vivo Y400 5G; weight 185 g on the OPPO F31 5G vs 197 g on the vivo Y400 5G. OPPO F31 5G vs vivo Y400 5G: full comparison
- realme 15x 5G: wired charging 80 W on the OPPO F31 5G vs 60 W on the realme 15x 5G; screen 6.57" on the OPPO F31 5G vs 6.8" on the realme 15x 5G; weight 185 g on the OPPO F31 5G vs 212 g on the realme 15x 5G. OPPO F31 5G vs realme 15x 5G: full comparison
- realme 16 5G: wired charging 80 W on the OPPO F31 5G vs 60 W on the realme 16 5G. OPPO F31 5G vs realme 16 5G: full comparison
Other OPPO phones
- OPPO A6 Pro 5G (OPPO F31 5G vs OPPO A6 Pro 5G)
- OPPO F33 5G (OPPO F31 5G vs OPPO F33 5G)
- OPPO F33 Pro 5G (OPPO F31 5G vs OPPO F33 Pro 5G)
See all OPPO phones.
Specifications from OPPO's official product page (www.oppo.com), checked 12 October 2026. Specifications the manufacturer does not publish are left blank rather than estimated. Percentages compare published figures only; see how Comparezi compares phones.
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F31 5G vs F33 5G
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Questions
F31 5G FAQs
Data sources
- Manufacturer official pages
Last updated
Product details
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