Side by side comparison and review of Fairphone 4 and Xiaomi 12. 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 | Fairphone 4 | Xiaomi 12 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 162 mm | 152.7 mm | Fairphone 4 has greater height than Xiaomi 12. |
| Width | 75.5 mm | 69.9 mm | Fairphone 4 has greater width than Xiaomi 12. |
| Depth | 10.5 mm | 8.16 mm | Xiaomi 12 is narrower than Fairphone 4. |
| Weight | 225 g | 180 g | Xiaomi 12 is lighter than Fairphone 4. |
| Body Colour | Grey | Grey | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | IP54 | - | |
| SAR Value | 0.494 W/kg (head), 0.993 W/kg (body), 2.916 W/kg (limb) | 0.596 W/kg (head), 0.998 W/kg (body), 1.972 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Fairphone 4 | Xiaomi 12 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | AMOLED | |
| Screen Size (Display Size) | 6.3" | 6.28" | Fairphone 4 has larger screen size than Xiaomi 12. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2400 x 1080 pixels | Xiaomi 12 has better screen resolution than Fairphone 4. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 410 ppi | 419 ppi | Xiaomi 12 has better pixel density than Fairphone 4. |
| Aspect Ratio | 19.5:9 | 20:9 | |
| Max Brightness | - | 1100 cd/m² | |
| Colour Depth | 16.7 million colours | 68 billion colours | Xiaomi 12 has better colour depth than Fairphone 4. |
| Contrast Ratio | - | 5000000:1 | |
| 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 | Full Lamination, Pixelworks technology | 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 | Fairphone 4 | Xiaomi 12 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 750G | Qualcomm Snapdragon 8 Gen 1 | |
|---|---|---|---|
| Processor Number | SM7225 | - | |
| Clock Speed | 2.2 GHz | 3 GHz | Xiaomi 12 has higher clock speed than Fairphone 4. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 619 | Qualcomm ADRENO |
| MEMORY | Fairphone 4 | Xiaomi 12 |
|---|
| RAM | 6 GB | LPDDR5 SDRAM - 8 GB | Xiaomi 12 has more RAM than Fairphone 4. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | Xiaomi 12 has more internal memory than Fairphone 4. |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 2 TB | - |
| CAMERA | Fairphone 4 | Xiaomi 12 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | Xiaomi 12 has better camera resolution than Fairphone 4. |
| Sensor Size | 1/2" | 1/1.56" | Fairphone 4 has better camera sensor size than Xiaomi 12. |
| Sensor Name | Sony Exmor RS IMX582 sensor | Sony IMX766 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.6 | F/1.88 | Fairphone 4 has better lens aperture than Fairphone 4. |
| Lens Construction | - | 6-element | |
| Pixel Size | 0.8 μm | 1 μm | Xiaomi 12 has larger camera pixel size than Fairphone 4. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 8x | - | |
| Special Effects | HDR | Moving crowd, Neon trails, Oil painting, Light painting, Starry sky, Star trails | |
| Camera Modes | Slow motion video, Pro mode, night 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 | Dual LED flash | LED flash | |
| Still Image Resolutions | 8000 x 6000 | - | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 4000 x 3000 (4K UHD) | 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) | Laser detection auto focus (LDAF), TOF sensor, colour sensor | 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) | 48 Megapixel | 13 Megapixel | Fairphone 4 has better second camera resolution than Xiaomi 12. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | Fairphone 4 has better second camera lens aperture than Fairphone 4. |
| Field of View (2nd Camera) | 120 degree(s) | 123 degree(s) | Xiaomi 12 has larger second camera lens field of view than Fairphone 4. |
| Pixel Size (2nd Camera) | 0.8 μm | - | |
| Camera Functions (2nd Camera) | Macro focus | - | |
| Still Image Resolutions | 8000 x 6000 | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Tele-macro lens | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Focal Length Equivalent to 35mm Camera | - | 50mm | |
| Camera Features (3rd Camera) | - | AF (3cm-7cm) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 25 Megapixel | 32 Megapixel | Xiaomi 12 has better front camera resolution than Fairphone 4. |
| Sensor Size (Front) | 1/2.78" | - | |
| Sensor Name (Front) | Sony Exmor RS IMX576 sensor | - | |
| Lens Aperture (Front) | F/2.2 | F/2.45 | Fairphone 4 has better front lens aperture than Fairphone 4. |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR | HDR | |
| Camera Modes (Front) | - | 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 | 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) | Up to 8x digital zoom, digital image stabilisation, ToF sensor, colour sensor | 4-in-1 to 1.4μm Super Pixel, Video HDR |
| BATTERY AND CHARGING | Fairphone 4 | Xiaomi 12 |
|---|
| Battery Capacity (Battery Size) | 3905 mAh | 4500 mAh | Xiaomi 12 has larger battery capacity than Fairphone 4. |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 39 min | |
| Wireless Charging | - | Yes | Xiaomi 12 can be charged wirelessly. |
| Standby Time | 200 hours | - | |
| Talk Time | 780 minutes | - | |
| Run Time Details | Talk: up to 780 min Standby: up to 200 hrs |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Fairphone 4 | Xiaomi 12 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | Android 11 | Android 12 | |
| User Interface | - | MIUI 13 | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo, GNSS | GPS, A-GPS, GLONASS, BeiDou, Galileo, NavIC |
| COMMUNICATIONS | Fairphone 4 | Xiaomi 12 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, VoWiFi, 5G NR | 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 12, Band 18, Band 19, Band 20, Band 28, Band 32, Band 38, Band 40, Band 41, Band 71 | 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 700a, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, FDD 600 | 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, n71, n77, n78 | 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 600, TDD TD 3700, TDD TD 3500 | 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 | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 5.1 LE | Bluetooth 5.2 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| MEDIA | Fairphone 4 | Xiaomi 12 |
|---|
| Supported Digital Audio Standards | WAV, AAC, AIFF, MP3, FLAC, AAC +, eAAC+, ALAC, OPUS, AMR-WB, AMR-NB, Vorbis, AAC-ELD | - | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, DivX, MPEG-2, H.264, H.263, HEVC, VP9 | - | |
| Sound Enhancements | - | Harman Kardon Sound technology, Dolby Atmos sound technology |
| FEATURES | Fairphone 4 | Xiaomi 12 |
|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, flicker sensor, gyroscope, 360° ambient light sensor | |
|---|---|---|---|
| Security Devices | Fingerprint reader (side) | Fingerprint reader (under display) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | MIMO technology, modular and repairable design, recycled and fair materials | 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 | Fairphone 4 | Xiaomi 12 |
|---|
| Included Accessories | - | SIM card removal tool, USB-C cable, protective case, 67W charger | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G, IP54 | SGS Low Blue Light Certification |
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