The Oppo F31 and F15 represent different eras of Oppo's mid-range strategy. The F15, released earlier, focused on providing a balanced experience at a competitive price. The F31, however, arrives with a more modern chipset and significantly faster charging, aiming for a more premium feel without a flagship price tag. This comparison dissects the key differences to help you determine which device best suits your needs.
🏆 Quick Verdict
For most users, the Oppo F31 is the clear winner. Its Mediatek Dimensity 6300 chipset delivers substantially improved performance and future-proofing compared to the F15’s Helio P70. The 80W charging is a game-changer, drastically reducing recharge times. While the F15 remains a viable option for basic users, the F31 offers a superior overall experience.
| Network |
|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G bands | 1, 3, 5, 8, 19, 28, 38, 40, 41, 42, 48 | 1, 3, 5, 8, 38, 40, 41 |
| 5G bands | 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA | - |
| Speed | HSPA, LTE, 5G | HSPA, LTE |
| Technology | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE |
| Launch |
|---|
| Announced | 2025, September 17 | 2020, January 16. Released 2020, January |
| Status | Available. Released 2025, September 27 | Discontinued |
| Body |
|---|
| Build | - | Glass front (Gorilla Glass 5), plastic back, plastic frame |
| Dimensions | 158.2 x 75 x 8 mm (6.23 x 2.95 x 0.31 in) | 160.2 x 73.3 x 7.9 mm (6.31 x 2.89 x 0.31 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 185 g (6.53 oz) | 172 g (6.07 oz) |
| Display |
|---|
| Protection | AGC DT-Star D+ | Corning Gorilla Glass 5 |
| Resolution | 1080 x 2372 pixels (~397 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~408 ppi density) |
| Size | 6.57 inches, 105.0 cm2 (~88.5% screen-to-body ratio) | 6.4 inches, 100.4 cm2 (~85.5% screen-to-body ratio) |
| Type | AMOLED, 1B colors, 120Hz, 600 nits (typ), 1400 nits (HBM) | AMOLED, 430 nits (typ) |
| Platform |
|---|
| CPU | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) |
| Chipset | Mediatek Dimensity 6300 (6 nm) | Mediatek MT6771V Helio P70 (12 nm) |
| GPU | Mali-G57 MC2 | Mali-G72 MP3 |
| OS | Android 15, ColorOS 15 | Android 9.0 (Pie), upgradable to Android 11, ColorOS 11.1 |
| Memory |
|---|
| Card slot | microSDXC | microSDXC (dedicated slot) |
| Internal | 128GB 8GB RAM, 256GB 8GB RAM | 128GB 4GB RAM, 128GB 8GB RAM |
| | - | UFS 2.1 |
| Main Camera |
|---|
| Dual | 50 MP, f/1.8, (wide), PDAF
Auxiliary lens | - |
| Features | LED flash, HDR, panorama | LED flash, HDR, panorama |
| Quad | - | 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.3, 13mm (ultrawide), 1/4.0", 1.12µm
2 MP B/W, f/2.4, 1/5.0", 1.75µm
Auxiliary lens |
| Video | 1080p@30/60/120fps | 1080p@30fps, gyro-EIS |
| Selfie camera |
|---|
| Features | Panorama | HDR |
| Single | 16 MP, f/2.4, (wide) | 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm |
| Video | 1080p@30fps | 1080p@30fps |
| Sound |
|---|
| 3.5mm jack | - | Yes |
| 35mm jack | No | Yes |
| Loudspeaker | Yes, with stereo speakers | Yes |
| Comms |
|---|
| Bluetooth | 5.4, A2DP, LE, aptX HD | 4.2, A2DP, LE |
| NFC | No | No |
| Positioning | GPS, GALILEO, GLONASS, BDS, QZSS | GPS, GLONASS, BDS |
| Radio | Unspecified | FM radio |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Features |
|---|
| Sensors | Fingerprint (under display, optical), accelerometer, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Battery |
|---|
| Charging | 80W wired, 33W PPS, 13.5W PD
Reverse wired charging | 20W wired, 50% in 30 min |
| Type | Si/C Li-Ion 7000 mAh | Li-Po 4025 mAh |
| Misc |
|---|
| Colors | Midnight Blue, Bloom Red, Cloud Green | Lightening Black, Unicorn White |
| Models | CPH2781 | CPH2001 |
| Price | ₹ 23,999 | About 250 EUR |
| SAR | 1.18 W/kg (head) 0.81 W/kg (body) | 1.20 W/kg (head) 0.55 W/kg (body) |
Oppo F31
- Significantly faster performance with Dimensity 6300
- Ultra-fast 80W charging with PPS/PD support
- More efficient chipset for potentially better battery life
- Potentially higher price point
- May not offer a drastically improved display over the F15
Oppo F15
- More affordable price
- Decent performance for basic tasks
- Potentially slightly better battery life for light usage
- Outdated Helio P70 chipset
- Slow 20W charging
- Less future-proof
Display Comparison
Neither Oppo provides detailed display specifications beyond resolution. However, given the F15’s release timeframe, it likely utilizes an IPS LCD panel. The F31, benefiting from newer technology, *may* incorporate a more advanced panel, potentially with improved color accuracy and viewing angles. The real differentiator here isn't the display itself, but the processing power to drive more complex display features. The F31’s Dimensity 6300 has a more capable GPU for rendering smoother visuals and supporting higher refresh rates (though not confirmed on either device).
Camera Comparison
Without detailed camera specs, a direct comparison is difficult. However, the F31’s more powerful ISP (Image Signal Processor) within the Dimensity 6300 chipset will likely result in better image processing, particularly in low-light conditions. The F15’s Helio P70 ISP is older and less capable. While both phones likely feature similar primary camera resolutions, the F31’s processing power will allow for more effective noise reduction, dynamic range optimization, and detail preservation. The inclusion of features like AI scene detection will also be more refined on the F31.
Performance
The performance gap between these two devices is substantial. The Oppo F31’s Mediatek Dimensity 6300, built on a 6nm process, is a significant upgrade over the F15’s 12nm Helio P70. The Dimensity 6300’s octa-core configuration, featuring 2x2.4 GHz Cortex-A76 cores and 6x2.0 GHz Cortex-A55 cores, provides a noticeable boost in CPU performance compared to the F15’s 4x2.1 GHz Cortex-A73 and 4x2.0 GHz Cortex-A53 setup. This translates to faster app loading times, smoother multitasking, and a more responsive user interface. The newer architecture also offers improved power efficiency. The F15’s Helio P70 is adequate for everyday tasks, but will struggle with demanding games or resource-intensive applications.
Battery Life
The Oppo F15 boasts 20W wired charging, claiming a 50% charge in 30 minutes. The F31, however, leaps ahead with 80W wired charging, significantly reducing recharge times. Furthermore, the F31 supports 33W PPS and 13.5W PD, offering greater charging flexibility. While battery capacity isn’t specified, the F31’s more efficient Dimensity 6300 chipset will likely offset any potential capacity difference, providing comparable or even better real-world battery life despite the faster charging speeds. The F31 also offers reverse wired charging, a feature absent on the F15.
Buying Guide
Buy the Oppo F31 if you prioritize performance for gaming, multitasking, or demanding applications, and value incredibly fast charging. You'll benefit from a smoother user experience and a device that will remain relevant for longer. Buy the Oppo F15 if you are on a very tight budget and primarily need a phone for basic communication, social media, and light web browsing. Its efficiency might offer slightly better battery life for these use cases, but at the cost of overall speed.
Frequently Asked Questions
❓ Will the Oppo F31 handle demanding games like PUBG or Call of Duty Mobile smoothly?
Yes, the Dimensity 6300 chipset in the Oppo F31 is significantly more capable of handling demanding games than the Helio P70 in the F15. You should expect smoother frame rates and a more consistent gaming experience, even at higher graphics settings. While specific frame rate numbers aren't available, the architectural improvements of the Dimensity 6300 are substantial.
❓ How much faster is the 80W charging on the Oppo F31 compared to the 20W charging on the F15?
The 80W charging on the F31 is *significantly* faster. While the F15 takes 30 minutes to reach 50% charge, the F31 can likely fully charge from 0-100% in under 30 minutes. This is a game-changer for users who frequently need to top up their battery quickly. The inclusion of PPS and PD standards also provides greater compatibility with various chargers.
❓ Does the Oppo F31's Dimensity 6300 chipset generate more heat than the F15's Helio P70 during prolonged use?
While the Dimensity 6300 is more powerful, its 6nm manufacturing process is more efficient than the F15’s 12nm Helio P70. This means it generates less heat for the same level of performance. Oppo likely employs thermal management solutions in both devices, but the F31 should exhibit less thermal throttling during extended gaming sessions or demanding tasks.
