In depth comparison and review of Xiaomi MI A3 and Xiaomi 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 12 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 153.48 mm | 152.7 mm | Xiaomi MI A3 has greater height than Xiaomi 12. |
| Width | 71.85 mm | 69.9 mm | Xiaomi MI A3 has greater width than Xiaomi 12. |
| Depth | 8.475 mm | 8.16 mm | Xiaomi 12 is narrower than Xiaomi MI A3. |
| Weight | 173.8 g | 180 g | Xiaomi MI A3 is lighter than Xiaomi MI A3. |
| Body Colour | Kind of grey | Grey | |
| 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) | 0.596 W/kg (head), 0.998 W/kg (body), 1.972 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI A3 | Xiaomi 12 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | AMOLED | |
| Screen Size (Display Size) | 6.088" | 6.28" | Xiaomi 12 has larger screen size than Xiaomi MI A3. |
| Screen Resolution (Display Resolution) | 1560 x 720 pixels | 2400 x 1080 pixels | Xiaomi 12 has better screen resolution than Xiaomi MI A3. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | - | 419 ppi | |
| Aspect Ratio | 19.5:9 | 20:9 | |
| Max Brightness | - | 1100 cd/m² | |
| Colour Depth | - | 68 billion colours | |
| Contrast Ratio | 60000:1 | 5000000:1 | Xiaomi 12 has better display contrast ratio than Xiaomi MI A3. |
| HDR | - | Yes | Xiaomi 12 has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | - | Dolby Vision, Sunlight mode, AdaptiveSync technology | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 480 Hz | |
| Display Features | 2.5D Glass, Dot Drop display | Reading mode, DCI-P3 Wide colour gamut, Dot Display, True Colour, DisplayMate A+, 16000 levels auto brightness adjustment | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | Xiaomi MI A3 | Xiaomi 12 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 665 | Qualcomm Snapdragon 8 Gen 1 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 3 GHz | Xiaomi 12 has higher clock speed than Xiaomi MI A3. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 610 | Qualcomm ADRENO |
| MEMORY | Xiaomi MI A3 | Xiaomi 12 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR5 SDRAM - 8 GB | Xiaomi 12 has more RAM than Xiaomi MI A3. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 256 GB | Xiaomi 12 has more internal memory than Xiaomi MI A3. |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | Up to 256 GB | - |
| CAMERA | Xiaomi MI A3 | Xiaomi 12 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | Xiaomi 12 has better camera resolution than Xiaomi MI A3. |
| Sensor Size | 1/2" | 1/1.56" | Xiaomi MI A3 has better camera sensor size than Xiaomi 12. |
| Sensor Name | - | Sony IMX766 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.79 | F/1.88 | Xiaomi MI A3 has better lens aperture than Xiaomi MI A3. |
| Lens Construction | 6-element | 6-element | |
| Pixel Size | 1.6 μm | 1 μm | Xiaomi MI A3 has larger camera pixel size than Xiaomi 12. |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Xiaomi 12 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | Moving crowd, Neon trails, Oil painting, Light painting, Starry sky, Star trails | |
| Camera Modes | AI portrait mode | Night mode, Documents, Vlog mode, Pro Video mode, Movie frame, Night portrait mode, photo filters, Timed burst, Photo clones, Dual video mode, Ultra Night Video, Pro Time-lapse, 50MP 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, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, 7680 x 4320 (8K) at 24 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 | HDR10+ recording, Google Lens, One-click AI cinema, HDR video recording, 2.1μm 4-in-1 Super Pixel, Xiaomi ProFocus |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 13 Megapixel | Xiaomi 12 has better second camera resolution than Xiaomi MI A3. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | 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) | 123 degree(s) | Xiaomi 12 has larger second camera lens field of view than Xiaomi MI A3. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 5 Megapixel | Xiaomi 12 has higher resolution third camera than Xiaomi MI A3. |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Tele-macro lens | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Focal Length Equivalent to 35mm Camera | - | 50mm | |
| Camera Functions (3rd Camera) | Depth camera | - | |
| Camera Features (3rd Camera) | - | AF (3cm-7cm) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 32 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | F/2.0 | F/2.45 | 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 | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | Selfie panorama, AI portrait mode, AI Beautify | Panoramic selfies, AI Beautify, Timed burst, Selfie Night mode, Capture Dual, Time-lapse selfie, AI portrait mode with bokeh and depth control, AI portrait video | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | |
| Camera Features (Front) | 4-in-1 Super Pixel technology, AI scene detection, 12 different scenes, AI Selfie, Palm shutter, AI face unlock | 4-in-1 to 1.4μm Super Pixel, Video HDR |
| BATTERY AND CHARGING | Xiaomi MI A3 | Xiaomi 12 |
|---|
| Battery Capacity (Battery Size) | 4030 mAh | 4500 mAh | Xiaomi 12 has larger battery capacity than Xiaomi MI A3. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | - | Xiaomi MI A3 has fast charging technology. |
| Recharge Time (Charging Time) | - | 39 min | |
| Wireless Charging | - | Yes | Xiaomi 12 can be charged wirelessly. |
| CELLULAR | Xiaomi MI A3 | Xiaomi 12 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Xiaomi 12 has more advanced generation mobile network. |
| Operating System | - | Android 12 | |
| User Interface | - | MIUI 13 | |
| Intelligent Assistant | Google Assistant | - | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo, NavIC |
| COMMUNICATIONS | Xiaomi MI A3 | Xiaomi 12 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 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 2, Band 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 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 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 32, Band 38, Band 39, Band 40, Band 41, Band 42, Band 48, Band 66 | |
| 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 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 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 3600, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n79, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD TD 4500, TDD 2300 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 | |
| NFC | - | Yes | Xiaomi 12 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi MI A3 | Xiaomi 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 | - | |
| Sound Enhancements | - | Harman Kardon Sound technology, Dolby Atmos sound technology |
| FEATURES | Xiaomi MI A3 | Xiaomi 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, ambient light sensor, proximity sensor, digital compass, flicker sensor, gyroscope, 360° ambient light sensor | |
| Security Devices | Fingerprint reader (under display) | Fingerprint reader (under display) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | AI face unlock | MIMO technology, linear motor, VC Liquid Cooling, Reverse wireless charging, dual stereo speakers, X-axis linear vibration motor, IR blaster, Qualcomm 7th generation AI Engine, Xiaomi AdaptiveCharge |
| OTHERS | Xiaomi MI A3 | Xiaomi 12 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, soft case | SIM card removal tool, USB-C cable, protective case, 67W charger | |
|---|---|---|---|
| Compliant Standards | - | SGS Low Blue Light Certification |
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