Side by side comparison and review of OnePlus 7 and Realme C31. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | OnePlus 7 | Realme C31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | RMX3501 | |
| Form Factor | Touch | Touch | |
| Height | 157.7 mm | 164.7 mm | Realme C31 has greater height than OnePlus 7. |
| Width | 74.8 mm | 76.1 mm | Realme C31 has greater width than OnePlus 7. |
| Depth | 8.2 mm | 8.4 mm | OnePlus 7 is narrower than OnePlus 7. |
| Weight | 182 g | 197 g | OnePlus 7 is lighter than OnePlus 7. |
| Body Colour | Mirror grey | Light silver | Dark green | |
| Body Material | 3D glass | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.147 W/kg (body), 0.957 W/kg (head), 2.663 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OnePlus 7 | Realme C31 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | Optic AMOLED | - | |
| Screen Size (Display Size) | 6.41" | 6.5" | Realme C31 has larger screen size than OnePlus 7. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1600 x 720 pixels | OnePlus 7 has better screen resolution than Realme C31. |
| Display Format | - | HD+ | |
| Pixel Density | 402 ppi | - | |
| Aspect Ratio | 19.5:9 | 20:9 | |
| Colour Depth | - | 16.7 million colours | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 120 Hz | |
| Display Features | 2.5D Glass, Reading mode, night mode, DCI-P3 Wide colour gamut, Video Enhancer | Ultra-clear View | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | - |
| PROCESSOR | OnePlus 7 | Realme C31 |
|---|
| Processor Type (CPU) | Snapdragon 855 | Unisoc | |
|---|---|---|---|
| Processor Number | - | T612 | |
| Clock Speed | 2.84 GHz | 1.82 GHz | OnePlus 7 has higher clock speed than Realme C31. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | OnePlus 7 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 640 | ARM Mali-G57 |
| MEMORY | OnePlus 7 | Realme C31 |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR4X SDRAM - 4 GB + up to 7 GB virtual extension | OnePlus 7 has more RAM than Realme C31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 64 GB | OnePlus 7 has more internal memory than Realme C31. |
| Memory Interface | UFS 3.0 | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | OnePlus 7 | Realme C31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 13 Megapixel | OnePlus 7 has better camera resolution than Realme C31. |
| Sensor Name | Sony Exmor RS IMX586 sensor | - | |
| Lens Aperture | F/1.7 | F/2.2 | OnePlus 7 has better lens aperture than OnePlus 7. |
| Lens Construction | - | 5-element | |
| Pixel Size | 0.8 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | OnePlus 7 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | HDR | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, night mode, Portrait | Burst mode, Panorama, Time-lapse mode, Pro mode, Portrait, Filter mode, Macro mode, Night Pro | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), RAW image capture, AI scene detection, AI studio lighting | AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 2 Megapixel | OnePlus 7 has better second camera resolution than Realme C31. |
|---|---|---|---|
| Lens Aperture (2nd Camera) | F/2.4 | F/2.4 | Both phones have the same second camera lens aperture. |
| Pixel Size (2nd Camera) | 1.12 μm | - | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | - | 4cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 0.3 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.8 | |
| Camera Functions (3rd Camera) | - | B&W lens |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 5 Megapixel | OnePlus 7 has better front camera resolution than Realme C31. |
| Sensor Name (Front) | Sony Exmor RX IMX471 sensor | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | OnePlus 7 has better front lens aperture than OnePlus 7. |
| Lens Element Qty (Front) | - | 3-element | |
| Pixel Size (Front) | 1 μm | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR, face retouch | HDR | |
| Camera Modes (Front) | Time-lapse mode | Beauty mode, Filter mode | |
| Face Recognition (Face ID) | Face recognition | - | OnePlus 7 has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Front) | Electronic Image Stabiliser (EIS) | AI Selfie |
| BATTERY AND CHARGING | OnePlus 7 | Realme C31 |
|---|
| Battery Capacity (Battery Size) | 3700 mAh | 5000 mAh | Realme C31 has larger battery capacity than OnePlus 7. |
|---|
| CELLULAR | OnePlus 7 | Realme C31 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | OxygenOS (based on Android Pie) | Android 11 | |
| User Interface | - | Realme UI (R Edition) | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo, SBAS | GPS, A-GPS, BeiDou, Galileo |
| COMMUNICATIONS | OnePlus 7 | Realme C31 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8, Band 9, Band 19 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900, 1700, 800 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 32, Band 34, Band 38, Band 39, Band 40, Band 41, Band 66 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | OnePlus 7 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | OnePlus 7 | Realme C31 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, IMY, EAC3, MID, AMR-WB, AMR-NB | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | - | |
| Sound Enhancements | Dolby Atmos sound technology | - |
| FEATURES | OnePlus 7 | Realme C31 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | Accelerometer, proximity sensor, magnetometer, gyro sensor, light sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | Fingerprint reader (side) | |
| Additional Phone Features | Face Unlock, Noise Cancellation Technology, MIMO technology, Fast Charging, AI Engine | MIMO technology, Ultra Power Saving Mode, Fast Charging |
| OTHERS | OnePlus 7 | Realme C31 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, sticker, USB-C cable, screen protector (pre-applied), protective case | SIM card removal tool, 10W charger, micro-USB cable | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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