OnePlus 9 vs Oppo F31 Pro 5G
Quick Comparison
Both OnePlus 9 and Oppo F31 Pro 5G comes with same RAM. In terms of display resolution, OnePlus 9 has better resolution of 2400 x 1080 than Oppo F31 Pro 5G which has resolution of 2372 x 1080. Both have the same amount of internal memory.
| Name | OnePlus 9 | Oppo F31 Pro 5G |
| RAM | 8 GB | 8 GB |
|---|---|---|
| Display | 6.55 in | 6.57 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 4500 mAh | 7000 mAh |
| Camera | 50 MP + 48 MP + 2 MP Triple | 50 MP + 2 MP Dual |
| Price | Rs. 23250 | Rs. 25999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is March 23, 2021 . The cost of OnePlus 9 is Rs. 23250. The launch Date of the second phone is September 15, 2025. The cost of Oppo F31 Pro 5G is Rs. 25999.
Display comparison
Oppo F31 Pro 5G has larger screen size of 6.57 inches in comparison to OnePlus 9's 6.55 inch screen. OnePlus 9 has Screen type where as Oppo F31 Pro 5G has AMOLED Screen type. OnePlus's phone has display density of 396 PPI & OPPO's phone has only 390 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 93% than OnePlus's phone ~ 89.7%. Both mobiles have same aspect ratio of 20:9.
Memory comparison
Both phones come with 8 GB RAM and both have same Internal Memory of 128 GB.
Camera comparison
Oppo F31 Pro 5G's 50 MP + 2 MP Dual Rear Camera outshines OnePlus 9's 50 MP + 48 MP + 2 MP Triple Rear Camera in terms of resolution. Oppo F31 Pro 5G will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to OnePlus 9's 16 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 11 and the second one on 15 version.
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Full Comparison
| Name | OnePlus 9 | Oppo F31 Pro 5G |
| General | ||
| Model | 9 5G | F31 Pro |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| SAR | 1.13 W/kg (Head) 0.85 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| Release Date | March 23, 2021 | September 15, 2025 |
| In The Box | Phone x 1, Charger x 1, USB Data Cable x 1, SIM Ejector Tool x 1, Protective Case x 1, Quick Guide x 1 | |
| Design | ||
| Dimensions | 73.9 x 160 x 8.1 mm | 75 x 158.2 x 8 mm |
| Weight | 183 g | 191 g |
| Colors | Space Grey | Desert Gold | |
| Display | ||
| Type | Color Fluid AMOLED (16M Colors) | Color AMOLED Screen (1.07 B) |
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.55 inches, 1080 x 2400 pixels, 120 Hz | 6.57 inches, 1080 x 2372 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 396 PPI | ~ 390 PPI |
| Screen to Body Ratio | ~ 89.7% | ~ 93% |
| Glass Type | Corning Gorilla Glass 6 | DT-Star D+ |
| Brightness | Normal brightness: 600nits (Typical), HBM: 1400nits (Typical) | |
| HDR Support | Yes | |
| Features | Reading Mode, Night Mode, Vibrant Color Effect, HDR | Vivid mode: 100% DCI-P3, Natural mode: 100% sRGB |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 8 GB | 8 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 3.1 | UFS 3.1 |
| Card Slot | No | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 6 (802.11ax) Supported, Wi-Fi 5 (802.11ac) Supported, 802.11a/b/g/n Supported, Wi-Fi Display Supported, WLAN Tethering Supported | |
| Bluetooth | Yes, v5.2, A2DP, LE, aptX HD, LDAC, AAC | Yes, v5.4, SBC, AAC, LDAC, aptX, aptX HD |
| USB | Yes, USB-C v3.1 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | yes with A-GPS | Single band: Beidou, GPS, GLONASS, Galileo, QZSS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Electronic Compass, Gyroscope, Ambient Light Sensor, Proximity Sensor, Sensor Core, Flick-detect Sensor | Proximity, Ambient light, Color temperature, E-compass, Accelerometer, Gyroscope |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | |
| AI Features | AI Eraser 2.0, AI Perfect Shot, AI Group Photo Composer, AI Recompose, AI VoiceScribe, AI Call Assistant, AI Assistant for Notes, Google Gemini | |
| Water Resistance | Yes | |
| IP Rating | IP69 + IP68 + IP66 | |
| Dust Resistant | Yes | |
| Camera | ||
| Rear Camera | 48 MP ƒ/1.8 (Main) 50 MP ƒ/2.2 (Ultra Wide) 2 MP Monochrome | 50 MP ƒ/1.8 (Wide Angle) FOV 78°; 5P lens; AF Supported; Supports two-axis OIS 2 MP ƒ/2.4 (Macro) FOV 89°; 3P lens |
| OIS | Yes | |
| Auto Focus | Yes | Yes |
| Features | Co-Developed by Hasselblad, Nightscape, Super Macro, UltraShot HDR, Smart Scene Recognition, Portrait mode, Pro mode, Panorama | Photo, Video, Portrait, Night, Panorama, SLO-MO, DUAL-VIEW VIDEO, TIME-LAPSE, STICKER, HI-RES, Underwater, PRO, DOC SCANNER |
| Video Recording | 8K @ 30 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD | 4K @ 30 fps UHD, 1080p @ 60 fps FHD, 720p @ 60 fps HD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 16 MP ƒ/2.4 Punch Hole, Screen Flash | 32 MP ƒ/2.4 (Wide Angle) FOV 82°; 5P lens Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v11, upgradable to v12 | Android v15 |
| Custom UI | ColorOS 15 | |
| Chipset | Qualcomm Snapdragon 888 | mediatek Dimensity 7300 Energy |
| CPU | 2.84 GHz, Octa Core Processor | 2.5 GHz, Octa Core Processor |
| Core Details | Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 | 4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55 |
| GPU | Adreno 660 | Mali-G615 MC2 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, AAC, AAC+, WMA, AMR-NB, AMR-WB, WAV, FLAC, APE, OGG, MID, M4A, IMY, AC3, EAC3, EAC3-JOC, AC4 | Yes |
| Video | MKV, MOV, MP4, H.265(HEVC), AVI, WMV, TS, 3GP, FLV, WEBM | Yes |
| FM Radio | Yes | No |
| Audio Jack Type | USB Type-C | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 4500 mAh, Li-Po Battery | 7000 mAh |
| Fast Charging | Yes, Warp Charge 65T | Yes, 80W SuperVOOC |
| Reverse Charging | Yes | |