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Oppo F31 5G Smartphone, 8GB RAM, 128GB Storage - Midnight Blue
SKU: 6932169381383
Inclusive of all taxes
The OPPO F31 5G in Midnight Blue pairs a 7000mAh battery and 80W SUPERVOOC charging with IP66, IP68 and IP69 water and dust resistance. It uses the MediaTek Dimensity 6300 with 8GB of RAM and 128GB of storage, and a 6.57-inch 120Hz AMOLED screen and 50MP main camera.
Colour
Ram: 8 GB
Storage
Out of Stock
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₹26,999
Delivery Details
Expected delivery: 2-3 Days Delivery
Country of Origin: India
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Midnight Blue finish; 360-degree Armour Body, 8.0 mm thin, about 185 g.
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7000mAh battery (typical), 6830mAh rated, over 80% capacity after five years (OPPO lab).
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80W SUPERVOOC charging, 1% to 55% in about 30 minutes; charger included in the box.
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IP66, IP68 and IP69 water and dust resistance (OPPO lab tests).
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Drop and impact tested based on MIL-STD-810H methods, SGS certified.
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MediaTek Dimensity 6300 with 8GB LPDDR4X RAM and 128GB UFS 2.2 storage; storage card supported.
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50MP main camera with autofocus, 2MP mono lens and Underwater mode.
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16MP front camera; 1080p video front and back.
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6.57-inch FHD+ AMOLED screen, up to 120Hz, 1400 nits in high brightness mode.
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ColorOS 15; dual nano-SIM, Wi-Fi 5, Bluetooth 5.4, dual stereo speakers.
The OPPO F31 5G in Midnight Blue is made for long days and rough handling. Its 7000mAh battery goes from 1% to 55% in about 30 minutes on the 80W SUPERVOOC charger in the box, and OPPO says it keeps over 80% of its capacity after five years of daily charging. A 4,300 sq mm vapour chamber helps keep it cool during games.
OPPO rates it IP66, IP68 and IP69, and its 360-degree Armour Body went through drop and impact tests based on MIL-STD-810H methods. The Midnight Blue model has a deep navy finish that shifts with the light and resists scratches. It is 8.0 mm thick and weighs about 185 g. The 50MP main camera has autofocus and an Underwater mode for fresh water, with a 2MP mono lens for portraits and a 16MP front camera.
Inside is the MediaTek Dimensity 6300 with 8GB of LPDDR4X RAM and 128GB of UFS 2.2 storage, and the phone takes a storage card. It runs ColorOS 15 on a 6.57-inch AMOLED screen that reaches 1400 nits. Video tops out at 1080p, Wi-Fi is Wi-Fi 5, and there is no NFC and no headphone jack.
Use the SIM ejector tool from the box to open the SIM tray and fit up to two nano-SIM cards, and a storage card if you want more space. Charge the phone with the charger and USB cable from the box, switch it on and follow the setup steps. OPPO's Clone Phone app can copy contacts, photos and apps from your old phone.
OPPO F31 5G, charger, USB data cable, SIM ejector tool, protective case and quick guide.
OPPO India covers the phone with a 12-month standard warranty. Keep your invoice, as OPPO's authorised service centres ask for it.
Network
- Technology
- 5G, 4G LTE, 3G, 2G
Body
- Dimensions
- 158.2 x 75.0 x 8.0 mm
- Weight
- About 185 g
- Build
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- 360-degree Armour Body
- Passed multi-angle drop and impact tests based on MIL-STD-810H methods, with SGS certification (OPPO lab tests)
- SIM
- Dual nano-SIM
- Water Resistance
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- IP66, IP68 and IP69 (IEC 60529 lab tests)
- Fresh water only, up to 1.5 m for 30 minutes; liquid damage is not covered by warranty
Display
- Size
- 6.57 Inches
- Resolution
- 1080 x 2372 pixels
- Type
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- 6.57-inch (16.69 cm) FHD+ AMOLED, 2372 x 1080 pixels, 397 PPI, up to 120Hz, up to 240Hz touch sampling
- 10-bit colour, 100% DCI-P3, 600 nits typical, 1400 nits HBM; Outdoor Mode 2.0 and Glove Touch
- Protection
- AGC DT-Star D+ cover glass
Platform
- OS
- ColorOS 15
- Chipset
- MediaTek Dimensity 6300
- CPU
- 8-core
- GPU
- Arm Mali-G57 MC2, 1072MHz
Memory
- Card slot
- Storage card supported
- Internal
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- 8GB LPDDR4X RAM with 128GB UFS 2.2 storage
- RAM expansion adds virtual RAM from storage
Main Camera
- Dual
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- 50MP main, f/1.8, autofocus, 76-degree view
- 2MP mono lens, f/2.4, 89-degree view
- Features
- Portrait, Night, Panorama, Slow motion, Time-lapse, Dual-view video, Hi-Res, Underwater, Pro and Document Scanner modes; Google Lens; Motion Photo; AI Eraser 2.0, AI Unblur, AI Reflection Remover, AI Recompose, AI Perfect Shot
- Video
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- 1080p and 720p at 60fps or 30fps; slow motion at 720p 120fps; 1080p time-lapse
- Dual-view video, up to 10x digital zoom while recording, underwater video
Selfie camera
- Single
- 16MP, f/2.4, 85-degree view
- Features
- Portrait, Night, Panorama, Time-lapse, Screen Fill Light, Hi-Res and Dual-view video modes; AI Portrait Retouching
- Video
- 1080p and 720p at 30fps; 1080p time-lapse
Sound
- Loudspeaker
- Dual stereo speakers, 300% Ultra Volume mode
- 3.5mm jack
- No (USB Type-C digital and analogue headphones both work)
Comms
- WLAN
- Wi-Fi 5 (802.11ac), Wi-Fi Display, hotspot
- Bluetooth
- Bluetooth 5.4; SBC, AAC, LDAC, aptX, aptX HD
- Positioning
- GPS, GLONASS, Galileo, BeiDou, QZSS (single band), A-GPS
- NFC
- No
- USB
- USB Type-C, OTG
Features
- Sensors
- In-display optical fingerprint sensor, face unlock, proximity, ambient light, e-compass, accelerometer
Battery
- Charging
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- 80W SUPERVOOC wired; charger included in the box
- Also works with SUPERVOOC chargers up to 67W, 33W PPS and 13.5W PD chargers
- Reverse wired charging for small devices (up to 5V/1.5A, with an OTG Type-C cable)
- Type
- 7000mAh typical (6830mAh rated)
Launch
- Status
- Launched in India on 15 September 2025, on sale from 27 September 2025