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Key Features
Key Features
- Display: 6.57 inches (16.69 cm), AMOLED, 120 Hz Refresh Rate
- Memory: 8GB RAM, 128GB ROM
- Processor: MediaTek Dimensity 6300, Octa Core, 2.4 GHz
- Camera: 50 MP + 2 MP Dual Rear & 16 MP Front Camera
- Battery: 7000 mAh with 80W SuperVOOC Flash Charge
- USP: IP66, IP68 & IP69 Waterproof, Reverse Wired Charging, AI LinkBoost 3.0
Specifications
Mobile Category
Mobile Type
- Android Smartphone
Mobile Design
- Touch
Manufacturer Details
Brand
- Oppo
Model Series
- F31
Model Number
- CPH2781
Product Dimensions (Open)
Dimensions In CM (WxDxH)
- 7.50 x 0.80 x 15.82
Product Weight
- 185 g
Dimensions In Inches (WxDxH)
- 2.95 x 0.31 x 6.23
Operating System
OS Type
- Android OS
OS Name & Version
- Android 15
User Interface
- ColorOS 15
Processor Details
Processor Name
- Dimensity 6300
GPU (Graphics)
- Mali-G57 MC2 at 1072MHz
Processor Brand
- MediaTek
CPU Specs
- SoC: 2 Arm A76 2.4GHz, 6 Arm A55 2.0GHz
Number of Cores
- Octa Core
Storage Specifications
Internal Storage
- 128GB
Memory Card Supported
- Yes
Memory Card Slot Type
- Hybrid Slot in SIM Tray
OTG Support
- Yes
RAM
- 8GB
Screen Specifications
Screen Type
- AMOLED
Screen Ratio
- 93%
Refresh Rate
- 120 Hz
Screen Resolution
- 1080 x 2372 Pixel
Screen Size in CM
- 16.69 cm
Screen Size in Inches
- 6.57 Inches
Brightness
- 1400 Nits
Sound
Additional Audio Features
- Dual Speakers, Ultra Volume Mode, Boosted & Immersive Sound
Speaker Type
- Stereo Speakers
Audio Jack Port
- USB Type-C Port
Smartphone Functions
Smart Sensors
- Proximity Sensor, Ambient Light Sensor, E-compass, Accelerometer, In-display Optical Fingerprint Sensor
Additional Smart Functions
- AI GameBoost 2.0, AI LinkBoost 3.0, AI Night Mode, AI Portrait Retouching, AI Recompose, AI Perfect Shot, AI Eraser 2.0, AI Reflection Remover, AI Unblur, AI Assistant for Documents, AI Assistant for Notes
Physical Attributes
Buttons & Controls
- Power Control | Volume Up/Down
Additional Physical Features
- 360 Degree Armour Body, Ultra-Slim, Ultra-Immersive, 1.67mm Infinite Edge
Fingerprint Reader Placement
- In-Display
SIM Details
Number of SIMs Supported
- 2
Secondary SIM Type
- Nano
SIM Type
- Nano
Dual SIM Mode
- Dual Stand-by
Hybrid SIM Slot
- Yes
Network Technology
Cellular Technology
- 5G
Network Technology Supported
- LTE
Bands Supported
- 5G NR: n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78 | 4G LTE FDD: Band 1/3/5/8/19/28B, LTE TDD: Band 38/40/41/42/48 | 3G WCDMA: Band 1/8 | 2G GSM: 900/180MHz
Network Connectivity
NFC
- No
Wi-Fi Supported
- Yes
Bluetooth Specifications
- Bluetooth 5.4
Bluetooth Features
- Bluetooth Low Energy, Bluetooth Audio Codec: SBC, AAC, LDAC, aptX, aptX HD
Wi-Fi Specifications
- IEEE 802.11a/b/g/n/ac
Bluetooth Supported
- Yes
Wi-Fi Features
- Wi-Fi 5 (802.11ac) Supported, 802.11a/b/g/n Supported, Wi-Fi Display Supported, WLAN Tethering Supported, 1 x 1 SISO Supported
Camera
Rear Camera Configuration
- Dual Rear Camera
Rear Flash
- Yes
Front Camera Configuration
- Single Front Camera
Camera Features
- Rear Camera: Main: 50MP, f/1.8, FOV 76°, 5P lens, AF Supported, Monochrome: 2MP, f/2.4, FOV 89°, 3P Lens, Shooting Mode: Photo, Video, Portrait, Night, Panorama, SLO-MO, Dual-view video, TIME-LAPSE, STICKER, HI-RES, Google Lens, Underwater, PRO, DOC SCANNER | Front Camera: 16MP, f/2.4, FOV 85°, 4P Lens, Shooting Mode: Photo, Video, Portrait, Night, Panorama, Dual-view video, TIME-LAPSE, STICKER, Screen Fill Light, HI-RES
Video Recording Features
- Rear Camera: 1080P Video: 60 fps, 30 fps, 720P Video: 60 fps, 30 fps, 720P SLO-MO: 120 fps, 1080P TIME-LAPSE: 30 fps, Dual-view Video, up to 10x Digital Zoom, Underwater Video Support | Front Camera: 1080P Video: 30 fps, 720P Video: 30 fps, 1080P TIME-LAPSE: 30 fps, Dual-view Video Support
Rear Camera
- 50 MP | 2 MP
Front Camera
- 16 MP
Access Control And Security
Lock
- Fingerprint, Facial Recognition
Additional Features
Included Software
- Google Apps
Additional Features
- Display: Touch Sampling Rate: Maximum: 240Hz, Default: 120Hz, Colour Gamut: Vivid Mode: 100% DCI-P3, Natural Mode: 100% sRGB, Colour Depth: 1.07 Billion Colours (10-bit), Pixel Density: 397 PPI, Brightness: Normal brightness: 600nits (Typical), HBM: 1400nits (Typical), Panel: AGC DT-Star D+, Cover Glasses: AGC DT-Star D+, Cell Broadcast Service (CBS), Location Technology: GNSS: Single band: Beidou, GPS, GLONASS, Galileo, QZSS, Others: Supports A-GPS Assisted Positioning, Supports WLAN Positioning, Supports Cellular Network Positioning, Supports A-GNSS Assisted Positioning, SuperCool VC System
Battery
Battery Type
- Non-Removable
Battery Technology
- Li-Ion Polymer
Battery Capacity
- 7000 mAh
Standard Battery Life
- 27 Days Stand by
Charging
Charging Pin Type
- USB Type-C
Fast Charging Capability
- Yes
Battery Charge Time
- 30 Mins from 1% to 55%, 60 Mins Fully Charged
Additional Charging Features
- 80W SuperVOOC Flash Charge, Reverse Wired Charging
Materials & Durability
Resistance Type
- Water Resistant | Dust Proof | Shock Resistant
IP Rating
- IP66, IP68, IP69
Resistance Features
- Military-Grade Shock Resistance
Aesthetics
Brand Color
- Midnight Blue
Color
- BLUE
In The Box
Documents
- 1 x Quick Guide, 1 x Warranty Card
Main product
- 1 x Mobile Phone U
Accessories
- 1 x SIM Ejector Tool, 1 x Charger, 1 x USB Data Cable, 1 x Protective Case
Package Includes
- 1 x Mobile Phone U, 1 x SIM Ejector Tool, 1 x Charger, 1 x USB Data Cable, 1 x Protective Case, 1 x Quick Guide, 1 x Warranty Card
Generic Name
- Mobile Phone
Packaged Dimensions
After Sales & Services
Warranty on Main Product
- 12 Months
Warranty Type
- Carry-In
Standard Warranty Includes
- Manufacturing Defects
Standard Warranty Excludes
- Physical Damage
Warranty on Accessories
- 6 Months
Installation & Demo applicable
- No
Certification
Additional Certifications
- TUV Rheinland Certified
Company Contact Information
Customer Support Number
- 18005727662
Customer Support Email
- customersupport@croma.com
Manufacturer/Importer/Marketer Name & Address
- Manufacturer Name & Address: Oppo Mobiles India Private Limited, 5th Floor, Tower B, Building No. 8, DLF Cyber City, Gurgaon, Haryana - 122002
Country of Manufacture
- India
Country of Brand Origin
- China
Croma Service Promise
Customer Support Email
- customersupport@croma.com
Registered Name and Address
- Infiniti Retail Ltd. - Unit No. 701 & 702, 7th Floor, Kaledonia, Sahar Road, Andheri (East); Mumbai - 400069. India
Customer Support Number
- 1800 572 7662
Customer Care Contact Person
- Grievance Officer
Overview
Efficient MediaTek Dimensity 6300 Processor
Powered by the MediaTek Dimensity 6300 octa-core processor, the oppo F31 6.57-inch Android Smartphone delivers smooth performance across apps, games, and multitasking. Consequently, you enjoy a responsive and fluid smartphone experience.
Dedicated 8GB RAM
Including 8GB RAM, this Android smartphone supports seamless multitasking, allowing you to switch between apps, play games, and perform daily tasks without lag or slowdown.
Generous 128GB Internal Storage
With 128GB of inbuilt storage, this smartphone provides ample space for apps, media, photos, and documents. Consequently, you can carry your digital world with you without worrying about running out of space.
Massive 7000mAh Battery
With a large 7000mAh battery, this 6.57-inch smartphone delivers long-lasting power for uninterrupted usage. Hence, you can browse, stream, and connect throughout the day without worrying about frequent charging.
Immersive 6.57-inch Display
Offering a wide 6.57-inch screen, this smartphone ensures rich colours and sharp clarity for movies, games, and browsing. Hence, visuals appear more vibrant, enhancing both entertainment and everyday use.
High-Resolution Dual Rear Camera
Equipped with a 50MP and 2MP rear camera setup, this Android smartphone captures vivid and detailed photographs. Additionally, it allows you to switch easily between wide shots and close-ups with confidence.
Sharp 16MP Front Camera
With a 16MP front-facing camera, this smartphone ensures selfies and video calls look bright and natural. Therefore, social sharing and communication remain sharp and clear.
80W SuperVOOC Flash Charge
Integrated with 80W SuperVOOC technology, this smartphone recharges rapidly with minimal downtime. As a result, it gets you back to your tasks, entertainment, or gaming in just minutes.
360° Armour Body
Designed with a reinforced 360-degree Armour Body, this Android smartphone provides enhanced strength and protection. Thus, it withstands daily wear and tear, offering better durability against accidental drops.
Powerful Waterproof Protection
Rated IP69, IP68, and IP66, this smartphone offers strong resistance against water and dust. Consequently, it remains reliable even in harsh conditions, giving you confidence for outdoor adventures and everyday use.
Ultra-Slim Ergonomic Design
Boasting an ultra-slim build with smooth ergonomic contours, this oppo smartphone combines style and comfort. Therefore, it feels lightweight in the hand while projecting a sleek, modern look.









