Side by side comparison and review of CUBOT J3 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 | CUBOT J3 | Realme C31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | RMX3501 | |
| Form Factor | Touch | Touch | |
| Height | 141.4 mm | 164.7 mm | Realme C31 has greater height than CUBOT J3. |
| Width | 66.3 mm | 76.1 mm | Realme C31 has greater width than CUBOT J3. |
| Depth | 8.8 mm | 8.4 mm | Realme C31 is narrower than CUBOT J3. |
| Weight | - | 197 g | |
| Body Colour | Blue | Light silver | Dark green | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.147 W/kg (body), 0.957 W/kg (head), 2.663 W/kg (limb) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B | 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 | CUBOT J3 | Realme C31 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Screen Size (Display Size) | 5" | 6.5" | Realme C31 has larger screen size than CUBOT J3. |
| Screen Resolution (Display Resolution) | 960 x 480 pixels | 1600 x 720 pixels | Realme C31 has better screen resolution than CUBOT J3. |
| Display Format | - | HD+ | |
| Pixel Density | 215 ppi | - | |
| Aspect Ratio | 18:9 | 20:9 | |
| Max Brightness | 430 cd/m² | - | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Contrast Ratio | 1000:1 | - | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 120 Hz | |
| Display Features | 2.5D Glass | Ultra-clear View |
| PROCESSOR | CUBOT J3 | Realme C31 |
|---|
| Processor Type (CPU) | MediaTek | Unisoc | |
|---|---|---|---|
| Processor Number | MT6580 | T612 | |
| Clock Speed | 1.3 GHz | 1.82 GHz | Realme C31 has higher clock speed than CUBOT J3. |
| Processor Core Qty | Quad-core | 8-core | Realme C31 has higher processor core quantity than CUBOT J3. |
| 64-bit Architecture | Yes | - | CUBOT J3 has 64-bit architecture. |
| Graphics System (GPU) | ARM Mali-400 MP2 | ARM Mali-G57 |
| MEMORY | CUBOT J3 | Realme C31 |
|---|
| RAM | 1 GB | LPDDR4X SDRAM - 4 GB + up to 7 GB virtual extension | Realme C31 has more RAM than CUBOT J3. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | Realme C31 has more internal memory than CUBOT J3. |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 64 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | CUBOT J3 | Realme C31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 8 Megapixel | 13 Megapixel | Realme C31 has better camera resolution than CUBOT J3. |
| Lens Aperture | - | F/2.2 | |
| Lens Construction | - | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR | |
| Camera Modes | - | Burst mode, Panorama, Time-lapse mode, Pro mode, Portrait, Filter mode, Macro mode, Night Pro | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Functions) | - | AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| 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) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | - | F/2.2 | |
| Lens Element Qty (Front) | - | 3-element | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Beauty mode, Filter mode | |
| Video Resolutions (Front) | - | 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Front) | - | AI Selfie |
| BATTERY AND CHARGING | CUBOT J3 | Realme C31 |
|---|
| Battery Capacity (Battery Size) | 2000 mAh | 5000 mAh | Realme C31 has larger battery capacity than CUBOT J3. |
|---|---|---|---|
| Standby Time | 168 hours | - | |
| Run Time Details | Standby: up to 168 hrs Playback (audio): up to 15 hrs Continuous browsing: up to 10 hrs Reading (book): up to 13 hrs |
- |
| CELLULAR | CUBOT J3 | Realme C31 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | Realme C31 has more advanced generation mobile network. |
| Operating System | Android Go | Android 11 | |
| User Interface | - | Realme UI (R Edition) | |
| Navigation | GPS, A-GPS | GPS, A-GPS, BeiDou, Galileo |
| COMMUNICATIONS | CUBOT J3 | Realme C31 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | - | 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 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11b/g/n | Wi-Fi | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | - |
| MEDIA | CUBOT J3 | Realme C31 |
|---|
| Supported Digital Audio Standards | AAC, MP3, OGG, M4A, MID, 3GP | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, 3GP, F4V, MP4 | - |
| FEATURES | CUBOT J3 | Realme C31 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Ambient light sensor, G-sensor, distance sensor | Accelerometer, proximity sensor, magnetometer, gyro sensor, light sensor | |
| Security Devices | Face recognition | Fingerprint reader (side) | |
| Additional Phone Features | - | MIMO technology, Ultra Power Saving Mode, Fast Charging |
| OTHERS | CUBOT J3 | Realme C31 |
|---|
| Included Accessories | USB cable, power adapter, protective case | SIM card removal tool, 10W charger, micro-USB cable | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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