Oppo F31 5G vs OPPO F21 Pro 4G
Quick Comparison
Both Oppo F31 5G and OPPO F21 Pro 4G comes with same RAM. In terms of display resolution, Oppo F31 5G has better resolution of 2412 x 1080 than OPPO F21 Pro 4G which has resolution of 2400 x 1080. Both have the same amount of internal memory.
| Name | Oppo F31 5G | OPPO F21 Pro 4G |
| RAM | 8 GB | 8 GB |
|---|---|---|
| Display | 6.57 in | 6.5 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 7000 mAh | 4500 mAh |
| Camera | 50 MP + 2 MP Dual | 64 MP + 2 MP + 2 MP Triple |
| Price | Rs. 22999 | Rs. 20999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is September 15, 2025. The cost of Oppo F31 5G is Rs. 22999. The launch Date of the second phone is April 12, 2022. The cost of OPPO F21 Pro 4G is Rs. 20999.
Display comparison
OPPO F21 Pro 4G has screen size of 6.5 inches which falls short to Oppo F31 5G's 6.57 inch screen. There is AMOLED Screen Type in both the phones. OPPO F21 Pro 4G has display density of 409 PPI & Oppo F31 5G has only 402 PPI display density. In terms of screen to body ratio, Oppo F31 5G has better screen to body ratio of ~ 92.2% than OPPO F21 Pro 4G's ~ 90.8%. Both phones 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 F21 Pro 4G's 64 MP + 2 MP + 2 MP Triple Rear Camera outshines Oppo F31 5G's 50 MP + 2 MP Dual Rear Camera in terms of resolution. OPPO F21 Pro 4G will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to Oppo F31 5G's 16 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 12 version.
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Full Comparison
| Name | Oppo F31 5G | OPPO F21 Pro 4G |
| General | ||
| Country of Origin | India | |
| Model | CPH2781 | F21 Pro |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | September 15, 2025 | April 12, 2022 |
| In The Box | Handset, Charger, USB Data Cable, Sim Ejector Tool, Quick Guide, Protective Case | |
| Design | ||
| Dimensions | 73.2 x 159.9 x 7.5 mm | |
| Weight | 175 g | |
| Display | ||
| Type | Color AMOLED Screen (16M Colors) | Color AMOLED Screen (16.7M) |
| Touch | Yes, 360 Hz Touch Sampling Rate | Yes |
| Size | 6.57 inches, 1080 x 2412 pixels, 120 Hz | 6.5 inches, 1080 x 2400 pixels, 90 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 402 PPI | ~ 409 PPI |
| Screen to Body Ratio | ~ 92.2% | ~ 90.8% |
| Glass Type | AGC DT-Star D+ | Corning Gorilla Glass 5 |
| Features | Normal mode: 430 nits (Typical), High Brightness Mode: 600 nits (Typical), Vivid mode: 97% NTSC/95% DCI-P3, Gentle Mode: sRGB | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 8 GB | 8 GB |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | Upto 5 GB Extra Virtual RAM |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | UFS 2.2 |
| Card Slot | Yes, upto 256 GB | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | No |
| 5G Bands | n1/n3/n5/n7/n8/n20/n28A/n28B/n66/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 | 802.11 a/b/g/n/ac, Wi-Fi 5 (802.11 ac), 802.11 a/b/g/n, WLAN (2.4 GHz | 5 GHz), WLAN Display, WLAN Tethering, 1 x 1 SOSO | |
| Bluetooth | Yes, v5.4, Support SBC, AAC, aptX, aptX HD, LDAC, LHDC | Yes, v5.1 |
| USB | Yes, USB-C v2.0 | Yes, USB-C |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO, QZSS | Built-in GPS, A-GPS, BeiDou, GLONASS, Galileo, QZSS |
| Fingerprint Sensor | Yes, Side | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Geomagnetic Induction, Ambient Light Induction, Proximity Sensor, Acceleration Sensor, Gravity Sensor, Gyroscope, Infrared Sensor, Step Recording Function, Facial Recognition Sensor | Geomagnetic Sensor, Proximity Sensor, Optical Sensor, Accelerometer, Gravity Sensor, Gyroscope, Pedometer, Compass |
| 3.5mm Headphone Jack | No | Yes |
| AI Features | Smart Document (AI summaries, translations, rewriting), Smart Note (AI-enhanced note-taking), and high-quality scanning. Integrated Google Gemini delivers multimodal AI intelligence | |
| Water Resistance | Yes | |
| IP Rating | IP69+IP68+IP66 | |
| Dust Resistant | Yes | |
| Extra Features | 4300 mm² VC cooling system | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) Sensor: OV50D40, Sensor size: 1/2.88″, Single pixel size: 0.612 um, Aperture size: f/1.8, Focal length: 27 mm, Lens configuration: 5P, Supporting AF 2 MP Sensor: GC02M1-C24YK, Sensor size: 1/5″, Single pixel size: 1.75 um, Aperture size: f/2.4, Focal length: 22 mm, Lens configuration: 3P | 64 MP ƒ/1.7 (Wide Angle) 2 MP ƒ/3.3 Microscope 2 MP ƒ/2.4 Mono |
| Auto Focus | Yes | Yes |
| Features | Panorama, Portrait, Time-lapse, Slow-motion, Text scanner, Google Lens, Extra HD, Macro, Sticker | |
| Video Recording | 1080p @ 30 fps FHD, 720p | 1080p, 720p |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP (Wide Angle) Sensor size: 1/3.09″, Single pixel size: 1.0 um, Aperture size: f/2.4, Focal length: 23 mm, Lens configuration: 4P Punch Hole | 32 MP ƒ/2.4 Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p |
| Technical | ||
| OS | Android v15 | Android v12 |
| Custom UI | ColorOS 15 | |
| Chipset | Mediatek Dimensity 6300 | Qualcomm Snapdragon 680 |
| CPU | 2.4 GHz, Octa Core Processor | 2.4 GHz, Octa Core Processor |
| Core Details | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz | 4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver |
| GPU | Arm Mali-G57 MC2 | Adreno 610 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh | 4500 mAh, Li-Po Battery |
| Fast Charging | Yes, 80W SUPERVOOC Charging | Yes, 33W Fast Charging |
| Reverse Charging | Yes | |