In depth comparison and review of Xiaomi MI A3 and Xiaomi Redmi 12. 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 | Xiaomi Redmi 12 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 153.48 mm | 168.6 mm | Xiaomi Redmi 12 has greater height than Xiaomi MI A3. |
| Width | 71.85 mm | 76.28 mm | Xiaomi Redmi 12 has greater width than Xiaomi MI A3. |
| Depth | 8.475 mm | 8.17 mm | Xiaomi Redmi 12 is narrower than Xiaomi MI A3. |
| Weight | 173.8 g | 198.5 g | Xiaomi MI A3 is lighter than Xiaomi MI A3. |
| Body Colour | Kind of grey | Midnight black | |
| Body Material | Corning Gorilla Glass 5 | - | |
| Protection | - | Spill-resistant, dust-resistant | |
| Waterproof (Water-resistant) | - | - | Xiaomi Redmi 12 is waterproof. |
| IP rating | - | IP53 | |
| SAR Value | 2.34 W/kg (limb), 1.097 W/kg (body), 0.301 W/kg (head) | - | |
| Integrated Components | - | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | AMOLED | - | |
| Screen Size (Display Size) | 6.088" | 6.79" | Xiaomi Redmi 12 has larger screen size than Xiaomi MI A3. |
| Screen Resolution (Display Resolution) | 1560 x 720 pixels | 2460 x 1080 pixels | Xiaomi Redmi 12 has better screen resolution than Xiaomi MI A3. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | - | 396 ppi | |
| Aspect Ratio | 19.5:9 | - | |
| Max Brightness | - | 550 cd/m² | |
| Contrast Ratio | 60000:1 | 1500:1 | Xiaomi MI A3 has better display contrast ratio than Xiaomi Redmi 12. |
| Display Enhancement Technology | - | Reading mode 3.0 | |
| Display Refresh Rate | - | 90 Hz | |
| Display Features | 2.5D Glass, Dot Drop display | Reading mode, Dot Display, AdaptiveSync technology, 70% NTSC | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 665 | MediaTek Helio G88 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2 GHz | Both phones have the same clock speed. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 610 | ARM Mali-G52 |
| MEMORY | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 4 GB + up to 16 GB virtual extension | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Xiaomi Redmi 12 has more internal memory than Xiaomi MI A3. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | Up to 256 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | Xiaomi Redmi 12 has better camera resolution than Xiaomi MI A3. |
| Sensor Size | 1/2" | - | |
| Lens Aperture | F/1.79 | F/1.8 | Xiaomi MI A3 has better lens aperture than Xiaomi MI A3. |
| Lens Construction | 6-element | - | |
| Pixel Size | 1.6 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Camera Modes | AI portrait mode | - | |
| 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 | |
| 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 | 8 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Field of View (2nd Camera) | 118 degree(s) | 120 degree(s) | Xiaomi Redmi 12 has larger second camera lens field of view than Xiaomi MI A3. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | Depth camera | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 8 Megapixel | Xiaomi MI A3 has better front camera resolution than Xiaomi Redmi 12. |
| Lens Aperture (Front) | F/2.0 | F/2.1 | Xiaomi MI A3 has better front lens aperture than Xiaomi MI A3. |
| Lens Element Qty (Front) | 5-element | - | |
| Field of View (Front) | 79 degree(s) | - | |
| Pixel Size (Front) | 1.6 μm | - | |
| Focus Adjustment | Focus free | - | |
| Camera Modes (Front) | Selfie panorama, AI portrait mode, AI Beautify | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) 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 | - |
| BATTERY AND CHARGING | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| Battery Capacity (Battery Size) | 4030 mAh | 5000 mAh | Xiaomi Redmi 12 has larger battery capacity than Xiaomi MI A3. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | - | Xiaomi MI A3 has fast charging technology. |
| Standby Time | - | 552 hours | |
| Talk Time | - | 2220 minutes | |
| Run Time Details | - | Talk: up to 2220 min Standby: up to 552 hrs Playback (video): up to 16 hrs Reading: up to 26 hrs |
| CELLULAR | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 13 | |
| User Interface | - | MIUI 14 | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 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 5.3 | |
| NFC | - | Yes | Xiaomi Redmi 12 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| 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 | Xiaomi Redmi 12 |
|---|
| 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, digital compass | |
| Security Devices | Fingerprint reader (under display) | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | AI face unlock | Fast Charging, IR blaster |
| OTHERS | Xiaomi MI A3 | Xiaomi Redmi 12 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, soft case | Power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | - | IP53, SGS Low Blue Light Certification |
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