Oppo F31 5G launched in India on September 15, 2025, alongside F31 Pro 5G and F31 Pro+ 5G, targeting budget-conscious users needing a tough phone for daily rough use. Phone emphasizes IP69 rating and massive battery in the competitive price segment.
With the dimensions of 158.2 x 75 x 8 mm and weighs 185 grams, it ensures easy handling despite rugged features.
6.57-inch AMOLED Display
Oppo F31 5G features a 6.57-inch AMOLED display with FHD+ resolution (1080 x 2372 pixels) and 120Hz refresh rate. The panel offers 397 PPI density, 600 nits typical brightness (1400 nits HBM peak), 100% DCI-P3 gamut in Vivid mode, and 1.07 billion colors (10-bit).
Protected by AGC DT-Star D+ glass with 240Hz touch sampling for smooth scrolling. 93% screen-to-body ratio and 3840Hz PWM dimming ensure eye comfort during extended use.
MediaTek Dimensity Processor with Android 15
Oppo F31 5G uses MediaTek Dimensity 6300 (6nm) octa-core processor (2x Cortex-A76 @2.4GHz + 6x A55 @2.0GHz) with Mali-G57 MC2 GPU. The chipset delivers solid mid-range efficiency for multitasking, gaming, and 5G, scoring ~450k on AnTuTu with good thermal management via VC cooling.
Runs ColorOS 15 based on Android 15 out-of-box, with AI features like photo editor, 4 years of security updates, and smooth animations.
7000mAh Battery with 80W Charging
Oppo F31 5G packs a massive 7000mAh battery, delivers up to 2 days of moderate usage or 1.5 days of heavy use, including streaming and gaming. Active Use Score reaches 20:44 hours, with video playback at 24 hours, web browsing at 19 hours, and gaming around 12 hours under tests.
Oppo F31 5G supports 80W SUPERVOOC Flash Charge, reaching 58% in 30 minutes and full charge in about 58-60 minutes.
50MP Rear with 16MP Selfie Camera
Oppo F31 5G features a dual rear camera with 50MP main (f/1.8, 5P lens, AF, 76° FOV) and 2MP monochrome (f/2.4, 3P lens, 89° FOV), plus 16MP front (f/2.4, 4P lens, 85° FOV). It records 1080p at 60/30fps rear (720p slo-mo@120fps), 1080 at @30fps front, with time-lapse, multi-view, 10x digital zoom, and underwater support.
Rear camera offers modes like Photo, Portrait, Night, Panorama, Slo-mo, Dual-view, Time-lapse, Sticker, Hi-res, Google Lens, Underwater, Pro, and Doc Scanner for versatile shooting.
The front camera uses a 16MP sensor (f/2.4 aperture, 4P lens, 85° FOV, likely Sony IMX480). It records 1080p at 30fps and 720p at 30fps, plus 1080p time-lapse at 30fps with multi-view shooting capabilities.
8GB RAM with Up to 256GB Storage
Oppo F31 5G offers 8GB LPDDR4X RAM paired with either 128GB or 256GB UFS 2.2 internal storage. Phone supports microSDXC card slot for additional storage and USB OTG for external drives, with actual available space varying due to pre-installed software.
Water Resistant, Fingerprint Sensor and Face Unlock
Oppo F31 5G provides robust security options with side-mounted fingerprint sensor plus face unlock for quick access. With ColorOS 15 privacy tools like Private Safe, app encryption, and permission manager.
Oppo F31 5G holds IP66, IP68, and IP69 ratings for comprehensive dust and water resistance, tested under lab conditions. IP66 protects against powerful water jets and dust; IP68 allows submersion up to 1.5m for 30 minutes; IP69 withstands high-pressure, high-temperature water jets.
Connectivity and Color Options
Oppo F31 5G supports dual nano-SIM with 5G, 4G LTE, 3G, and 2G connectivity. Additionally, phone includes Wi-Fi 802.11 (dual-band), Bluetooth 5.4, USB Type-C 2.0 (OTG), and GPS. Phone uses USB Type-C 2.0 port for charging, data transfer, and audio.
Phone features stereo speakers for immersive sound and supports Hi-Res audio via USB Type-C.
Oppo F31 5G in India comes in three color options: Cloud Green, Midnight Blue, and Bloom Red.
Price Under ₹30,000
Oppo F31 5G is priced ₹24,999 for the bae variant of 8GB RAM and 128GB storage while it is priced at ₹26,999 for the higher variant of 8GB RAM and 256GB storage. Phone is available on company website, major online platforms, and selected offline stores.