Oppo F31
Released: September 27, 2025
The Oppo F31 is a feature-packed mid-range smartphone built for users who prioritize extreme durability, multi-day battery life, and smooth daily performance. Encased in a surprisingly sleek 8mm profile weighing just 185g, the device brings an impressive balance of ruggedness and modern design. Running Android 15 with ColorOS 15 out of the box, it offers a refined software experience paired with high-speed 5G connectivity. Massive Battery with 80W Fast Charging The standout feature of the Oppo F31 is its enormous 7000 mAh Silicon-Carbon (Si/C) battery, designed to easily power through heavy usage across multiple days. Charging is quick and efficient thanks to 80W wired fast charging support, alongside versatility provided by 33W PPS, 13.5W PD, and reverse wired charging capabilities. Military-Grade Durability and Vibrant AMOLED Display Engineered to withstand tough environments, the phone boasts an extraordinary IP68/IP69 rating for water and dust resistance, along with MIL-STD-810H compliance for drop and shock protection. Up front, it features a 6.57-inch 120Hz AMOLED display outputting 1 billion colors and reaching up to 1400 nits high brightness, shielded by AGC DT-Star D+ glass. 5G Performance and Expandable Storage Under the hood, the device is powered by the 6nm MediaTek Dimensity 6300 chipset, paired with 8GB of RAM and up to 256GB of UFS 2.2 internal storage. Photographers get a primary 50 MP main camera supporting 1080p video capture up to 120fps, while media lovers benefit from dual stereo speakers and expandable storage via a microSDXC card slot. Who is this for? / Should you buy it? The Oppo F31 is ideally suited for outdoor workers, travelers, and power users who demand extraordinary battery life and rugged protection without sacrificing screen quality or physical portability. If you need a durable daily driver that handles standard tasks effortlessly and eliminates battery anxiety, the Oppo F31 presents a highly compelling package.
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Reasons to Buy
- Huge 7000 mAh battery with fast 80W wired charging
- Exceptional durability with IP68/IP69 rating and MIL-STD-810H compliance
- Vibrant 6.57-inch 120Hz AMOLED display with 1400 nits peak brightness
- Slim 8mm profile despite the massive battery capacity
- Expandable storage support via microSDXC card slot
- Ships with modern Android 15 and ColorOS 15
Reasons to Avoid
- Lacks NFC for contactless payments
- No 3.5mm headphone jack
- MediaTek Dimensity 6300 provides basic mid-range performance
- Main and selfie cameras are capped at 1080p video recording
Full Specifications
Network
Launch
Body
Display
Platform
Memory
Main Camera
Selfie Camera
Sound
Connectivity
Features
Battery
Misc
Oppo F31 Review
The Oppo F31 is a feature-packed mid-range smartphone built for users who prioritize extreme durability, multi-day battery life, and smooth daily performance. Encased in a surprisingly sleek 8mm profile weighing just 185g, the device brings an impressive balance of ruggedness and modern design. Running Android 15 with ColorOS 15 out of the box, it offers a refined software experience paired with high-speed 5G connectivity.
Massive Battery with 80W Fast Charging The standout feature of the Oppo F31 is its enormous 7000 mAh Silicon-Carbon (Si/C) battery, designed to easily power through heavy usage across multiple days. Charging is quick and efficient thanks to 80W wired fast charging support, alongside versatility provided by 33W PPS, 13.5W PD, and reverse wired charging capabilities.
Military-Grade Durability and Vibrant AMOLED Display Engineered to withstand tough environments, the phone boasts an extraordinary IP68/IP69 rating for water and dust resistance, along with MIL-STD-810H compliance for drop and shock protection. Up front, it features a 6.57-inch 120Hz AMOLED display outputting 1 billion colors and reaching up to 1400 nits high brightness, shielded by AGC DT-Star D+ glass.
5G Performance and Expandable Storage Under the hood, the device is powered by the 6nm MediaTek Dimensity 6300 chipset, paired with 8GB of RAM and up to 256GB of UFS 2.2 internal storage. Photographers get a primary 50 MP main camera supporting 1080p video capture up to 120fps, while media lovers benefit from dual stereo speakers and expandable storage via a microSDXC card slot.
Who is this for? / Should you buy it? The Oppo F31 is ideally suited for outdoor workers, travelers, and power users who demand extraordinary battery life and rugged protection without sacrificing screen quality or physical portability. If you need a durable daily driver that handles standard tasks effortlessly and eliminates battery anxiety, the Oppo F31 presents a highly compelling package.
Frequently Asked Questions
Yes, the Oppo F31 supports 5G network connectivity alongside 4G LTE, 3G, and 2G networks.
The Oppo F31 is equipped with a large 7000 mAh battery that supports 80W wired fast charging and reverse wired charging.
The phone is powered by a MediaTek Dimensity 6300 (6 nm) octa-core processor and a Mali-G57 MC2 GPU.
Yes, the Oppo F31 features an IP68/IP69 rating for dust and water resistance and is also MIL-STD-810H compliant.
It features a 6.57-inch AMOLED display with a 120Hz refresh rate, 1080 x 2372 pixel resolution, up to 1400 nits brightness, and AGC DT-Star D+ protection.
The phone has a 50 MP main rear camera with an auxiliary lens, capable of recording up to 1080p video at 120fps. On the front, it features a 16 MP camera for selfies.
The Oppo F31 includes a microSDXC card slot for expandable storage, but it does not come with a 3.5mm audio port.
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