Detailed comparison and review of Fairphone 4 and Xiaomi Redmi A1. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 162 mm | 164.9 mm | Xiaomi Redmi A1 has greater height than Fairphone 4. |
| Width | 75.5 mm | 76.75 mm | Xiaomi Redmi A1 has greater width than Fairphone 4. |
| Depth | 10.5 mm | 9.09 mm | Xiaomi Redmi A1 is narrower than Fairphone 4. |
| Weight | 225 g | 192 g | Xiaomi Redmi A1 is lighter than Fairphone 4. |
| Body Colour | Grey | Light green | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | IP54 | - | |
| SAR Value | 0.494 W/kg (head), 0.993 W/kg (body), 2.916 W/kg (limb) | 0.997 W/kg (body), 0.846 W/kg (head), 2.541 W/kg (limb) | |
| Integrated Components | - | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 6.3" | 6.52" | Xiaomi Redmi A1 has larger screen size than Fairphone 4. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1600 x 720 pixels | Fairphone 4 has better screen resolution than Xiaomi Redmi A1. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 410 ppi | - | |
| Aspect Ratio | 19.5:9 | 20:9 | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | Full Lamination, Pixelworks technology | Night light screen, Dot Drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 750G | MediaTek Helio A22 | |
|---|---|---|---|
| Processor Number | SM7225 | - | |
| Clock Speed | 2.2 GHz | 2 GHz | Fairphone 4 has higher clock speed than Xiaomi Redmi A1. |
| Processor Core Qty | 8-core | Quad-core | Fairphone 4 has higher processor core quantity than Xiaomi Redmi A1. |
| Graphics System (GPU) | Qualcomm ADRENO 619 | - |
| MEMORY | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| RAM | 6 GB | LPDDR4X SDRAM - 2 GB | Fairphone 4 has more RAM than Xiaomi Redmi A1. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 32 GB | Fairphone 4 has more internal memory than Xiaomi Redmi A1. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 2 TB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 8 Megapixel | Fairphone 4 has better camera resolution than Xiaomi Redmi A1. |
| Sensor Size | 1/2" | - | |
| Sensor Name | Sony Exmor RS IMX582 sensor | - | |
| Lens Aperture | F/1.6 | F/2.0 | Fairphone 4 has better lens aperture than Fairphone 4. |
| Pixel Size | 0.8 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Fairphone 4 has optical stabilisation. |
| Focus Adjustment | Automatic | - | |
| Digital Zoom | 8x | - | |
| Special Effects | HDR | HDR | |
| Camera Modes | Slow motion video, Pro mode, night mode | Time-lapse mode, portrait mode, Short video 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, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Laser detection auto focus (LDAF), TOF sensor, colour sensor | AI Dual camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 48 Megapixel | 8 Megapixel | Fairphone 4 has better second camera resolution than Xiaomi Redmi A1. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | - | |
| Field of View (2nd Camera) | 120 degree(s) | - | |
| Pixel Size (2nd Camera) | 0.8 μm | - | |
| Camera Functions (2nd Camera) | Macro focus | - | |
| Still Image Resolutions | 8000 x 6000 | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 25 Megapixel | 5 Megapixel | Fairphone 4 has better front camera resolution than Xiaomi Redmi A1. |
| Sensor Size (Front) | 1/2.78" | - | |
| Sensor Name (Front) | Sony Exmor RS IMX576 sensor | - | |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | - | Beautify | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | Up to 8x digital zoom, digital image stabilisation, ToF sensor, colour sensor | AI Selfie |
| BATTERY AND CHARGING | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| Battery Capacity (Battery Size) | 3905 mAh | 5000 mAh | Xiaomi Redmi A1 has larger battery capacity than Fairphone 4. |
|---|---|---|---|
| Standby Time | 200 hours | 746 hours | Xiaomi Redmi A1 has longer standby time than Fairphone 4. |
| Talk Time | 780 minutes | 1800 minutes | Xiaomi Redmi A1 has longer battery life when making calls than Fairphone 4. |
| Run Time Details | Talk: up to 780 min Standby: up to 200 hrs |
Talk: up to 1800 min Standby: up to 746 hrs Playback (video): up to 22 hrs Playback (Music): up to 161 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 4G | Fairphone 4 has more advanced generation mobile network. |
| Operating System | Android 11 | Android 12 (Go edition) | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo, GNSS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, VoWiFi, 5G NR | 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 12, Band 18, Band 19, Band 20, Band 28, Band 32, Band 38, Band 40, Band 41, Band 71 | 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 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 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n71, n77, n78 | - | |
| 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 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | Wi-Fi | |
| Bluetooth | Bluetooth 5.1 LE | Bluetooth 5.0 | |
| NFC | Yes | - | Fairphone 4 has NFC reader for mobile payments. |
| MEDIA | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| 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 | - |
| FEATURES | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | Accelerometer | |
|---|---|---|---|
| Security Devices | Fingerprint reader (side) | - | |
| Additional Phone Features | MIMO technology, modular and repairable design, recycled and fair materials | Fast Charging |
| OTHERS | Fairphone 4 | Xiaomi Redmi A1 |
|---|
| Included Accessories | - | USB cable, SIM card removal tool, 10W charger | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G, IP54 | - |
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