OPPO’s F-series blends style with everyday speed, and the OPPO F31 sticks to that winning formula. You get a slim, lightweight body, a vibrant 120Hz AMOLED screen, fast charging, 5G-ready performance, and cameras tuned for bright, social-ready photos. It’s aimed at students and daily commuters who want a premium feel without the premium price.
Highlights
| Feature | Details |
|---|---|
| Segment (India) | Budget–mid 5G smartphone |
| Display | ~6.6–6.7-inch FHD+ AMOLED, up to 120Hz refresh |
| Processor | Efficient 6nm octa-core 5G chipset (stability focused) |
| Memory & storage | 6GB/128GB or 8GB/256GB; virtual RAM on select variants |
| Cameras | 50MP main + assist sensors; ~16MP selfie (market dependent) |
| Battery & charging | 5,000mAh; fast wired charging |
| Software | ColorOS on a recent Android version |
| Extras | In-display/side fingerprint (variant dependent), dual-SIM; microSD on select variants |
Design & Build
The F31 leans sleek and minimal: flat sides, a thin profile, and a matte back that resists fingerprints. Camera rings sit nearly flush for minimal desk wobble, while the weight balance stays friendly for one-handed texting. Buttons feel clicky and precise, and the tasteful color options help it pass for something pricier. It’s sturdy enough for backpack life yet polished enough for the office.
Display & Audio
A 120Hz FHD+ AMOLED is the centerpiece. Scrolling feels buttery, animations pop, and HDR video looks punchy with deep blacks and lively color. Peak brightness keeps maps and chats readable in strong sunlight, and touch response is snappy for gaming UIs. The single speaker is fine for reels and podcasts; for movies or long playlists, pair TWS earbuds for fuller sound and better separation.
Performance
Powered by an efficient 6nm octa-core 5G chipset, the F31 focuses on real-world smoothness over flashy benchmarks. Everyday tasks—WhatsApp, Instagram, UPI, delivery apps, and hopping between browser tabs—run without fuss, especially on the 8GB RAM variant (with virtual RAM where available). UFS-class storage helps apps open quickly and keeps installs snappy. Popular games are best at balanced/medium graphics for steady frames and cooler temps during longer sessions.
Cameras
The 50MP main camera delivers bright, social-ready photos in daylight. Autofocus locks quickly, colors have pleasant pop, and portrait mode cuts subjects cleanly in good light. Auxiliary sensors assist with depth or close-ups—use them outdoors for best results. The ~16MP selfie camera handles video calls and reels sharply; dial down beauty effects for natural skin tones. In low light, lean on Night mode and a steady hand—results are shareable, with noise control typical for the segment.
Battery & Charging
A 5,000mAh battery anchors the experience, comfortably covering a full day of mixed 5G data, reels, maps, and messaging. Light users can stretch further with adaptive brightness and modest refresh rates. Fast wired charging is a genuine quality-of-life perk: short top-ups add meaningful hours, and thermal behavior stays sensible so the phone doesn’t get toasty on the desk.
Software & Extras
ColorOS adds helpful touches—Smart Sidebar, flexible theming, app cloner, and granular privacy controls—without feeling heavy. Pre-installs are minimal and can be trimmed. Depending on the variant, you get an in-display or side-mounted fingerprint reader; both are quick and consistent, with face unlock as a handy backup. Call quality on major Indian networks is dependable, and dual-SIM flexibility plus a dedicated or hybrid microSD slot (on select models) makes storage and work/personal juggling easy.
Verdict
The OPPO F31 nails the “style plus substance” brief: a slick 120Hz AMOLED, reliable 5G performance, fast charging, and cameras tuned for bright, shareable photos—wrapped in a slim, modern design. If your checklist reads “premium look, smooth display, strong battery, and fuss-free daily speed,” the F31 belongs on your shortlist. Hardcore gamers may prefer pricier silicon, but for most buyers this is a balanced, polished all-rounder at the right price.