In depth comparison and review of Xiaomi MI A3 and Realme C31. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Xiaomi MI A3 | Realme C31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | RMX3501 | |
| Form Factor | Touch | Touch | |
| Height | 153.48 mm | 164.7 mm | Realme C31 has greater height than Xiaomi MI A3. |
| Width | 71.85 mm | 76.1 mm | Realme C31 has greater width than Xiaomi MI A3. |
| Depth | 8.475 mm | 8.4 mm | Realme C31 is narrower than Xiaomi MI A3. |
| Weight | 173.8 g | 197 g | Xiaomi MI A3 is lighter than Xiaomi MI A3. |
| Body Colour | Kind of grey | Light silver | Dark green | |
| Body Material | Corning Gorilla Glass 5 | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 2.34 W/kg (limb), 1.097 W/kg (body), 0.301 W/kg (head) | 1.147 W/kg (body), 0.957 W/kg (head), 2.663 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
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 | Xiaomi MI A3 | Realme C31 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | AMOLED | - | |
| Screen Size (Display Size) | 6.088" | 6.5" | Realme C31 has larger screen size than Xiaomi MI A3. |
| Screen Resolution (Display Resolution) | 1560 x 720 pixels | 1600 x 720 pixels | Realme C31 has better screen resolution than Xiaomi MI A3. |
| Display Format | HD+ | HD+ | |
| Aspect Ratio | 19.5:9 | 20:9 | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 60000:1 | - | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 120 Hz | |
| Display Features | 2.5D Glass, Dot Drop display | Ultra-clear View | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi MI A3 | Realme C31 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 665 | Unisoc | |
|---|---|---|---|
| Processor Number | - | T612 | |
| Clock Speed | 2 GHz | 1.82 GHz | Xiaomi MI A3 has higher clock speed than Realme C31. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 610 | ARM Mali-G57 |
| MEMORY | Xiaomi MI A3 | Realme C31 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 4 GB + up to 7 GB virtual extension | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | Up to 256 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Xiaomi MI A3 | Realme C31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 13 Megapixel | Xiaomi MI A3 has better camera resolution than Realme C31. |
| Sensor Size | 1/2" | - | |
| Lens Aperture | F/1.79 | F/2.2 | Xiaomi MI A3 has better lens aperture than Xiaomi MI A3. |
| Lens Construction | 6-element | 5-element | |
| Pixel Size | 1.6 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR | |
| Camera Modes | AI portrait mode | Burst mode, Panorama, Time-lapse mode, Pro mode, Portrait, Filter mode, Macro mode, Night Pro | |
| Light Source | Flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 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), 4-in-1 Super Pixel, AI scene detection, AI Triple camera, 27 different scenes | AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | Xiaomi MI A3 has better second camera resolution than Realme C31. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | Xiaomi MI A3 has better second camera lens aperture than Xiaomi MI A3. |
| Field of View (2nd Camera) | 118 degree(s) | - | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | - | 4cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 0.3 Megapixel | Xiaomi MI A3 has higher resolution third camera than Realme C31. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.8 | |
| Camera Functions (3rd Camera) | Depth camera | B&W lens |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 5 Megapixel | Xiaomi MI A3 has better front camera resolution than Realme C31. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Xiaomi MI A3 has better front lens aperture than Xiaomi MI A3. |
| Lens Element Qty (Front) | 5-element | 3-element | |
| Field of View (Front) | 79 degree(s) | - | |
| Pixel Size (Front) | 1.6 μm | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | Selfie panorama, AI portrait mode, AI Beautify | Beauty mode, Filter mode | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
| Camera Features (Front) | 4-in-1 Super Pixel technology, AI scene detection, 12 different scenes, AI Selfie, Palm shutter, AI face unlock | AI Selfie |
| BATTERY AND CHARGING | Xiaomi MI A3 | Realme C31 |
|---|
| Battery Capacity (Battery Size) | 4030 mAh | 5000 mAh | Realme C31 has larger battery capacity than Xiaomi MI A3. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | - | Xiaomi MI A3 has fast charging technology. |
| CELLULAR | Xiaomi MI A3 | Realme C31 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 11 | |
| User Interface | - | Realme UI (R Edition) | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI A3 | Realme C31 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | 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 2, Band 4, Band 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 | 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 800 DD, FDD 700 APT, TDD 2600, TDD 2300 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi MI A3 | Realme C31 |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, AMR-WB, AMR-NB | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, H.264, M4V, MPEG4-ASP, MPEG-4 SP, MP4 | - |
| FEATURES | Xiaomi MI A3 | 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, vibration sensor | Accelerometer, proximity sensor, magnetometer, gyro sensor, light sensor | |
| Security Devices | Fingerprint reader (under display) | Fingerprint reader (side) | |
| Additional Phone Features | AI face unlock | MIMO technology, Ultra Power Saving Mode, Fast Charging |
| OTHERS | Xiaomi MI A3 | Realme C31 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, soft case | SIM card removal tool, 10W charger, micro-USB cable | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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