In depth comparison and review of OnePlus 9 and Fairphone 4. 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 | OnePlus 9 | Fairphone 4 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 160 mm | 162 mm | Fairphone 4 has greater height than OnePlus 9. |
| Width | 74.2 mm | 75.5 mm | Fairphone 4 has greater width than OnePlus 9. |
| Depth | 8.7 mm | 10.5 mm | OnePlus 9 is narrower than OnePlus 9. |
| Weight | 192 g | 225 g | OnePlus 9 is lighter than OnePlus 9. |
| Body Colour | Astral black | Arctic sky | Grey | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | - | IP54 | |
| SAR Value | - | 0.494 W/kg (head), 0.993 W/kg (body), 2.916 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 | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OnePlus 9 | Fairphone 4 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Fluid Amoled | IPS | |
| Screen Size (Display Size) | 6.55" | 6.3" | OnePlus 9 has larger screen size than Fairphone 4. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2340 x 1080 pixels | OnePlus 9 has better screen resolution than Fairphone 4. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 402 ppi | 410 ppi | Fairphone 4 has better pixel density than OnePlus 9. |
| Aspect Ratio | 20:9 | 19.5:9 | |
| Max Brightness | 1100 cd/m² | - | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| HDR | Yes | - | OnePlus 9 has HDR. |
| HDR Technology | HDR10+ | - | |
| Display Enhancement Technology | Vibrant Color Effect | - | |
| Display Refresh Rate | 120 Hz | - | |
| Display Features | Always-on display, Reading mode, night mode, Wide colour display (P3), sRGB support | Full Lamination, Pixelworks technology | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | OnePlus 9 | Fairphone 4 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 | Qualcomm Snapdragon 750G | |
|---|---|---|---|
| Processor Number | - | SM7225 | |
| Clock Speed | - | 2.2 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 660 | Qualcomm ADRENO 619 |
| MEMORY | OnePlus 9 | Fairphone 4 |
|---|
| RAM | LPDDR5 SDRAM - 8 GB | 6 GB | OnePlus 9 has more RAM than Fairphone 4. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | UFS 3.1 | - | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 2 TB |
| CAMERA | OnePlus 9 | Fairphone 4 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 2 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 48 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | 1/1.43" | 1/2" | Fairphone 4 has better camera sensor size than OnePlus 9. |
| Sensor Name | Sony Exmor RS IMX689 sensor | Sony Exmor RS IMX582 sensor | |
| Lens Aperture | F/1.8 | F/1.6 | Fairphone 4 has better lens aperture than OnePlus 9. |
| Lens Construction | 7-element | - | |
| Pixel Size | 1.12 μm | 0.8 μm | OnePlus 9 has larger camera pixel size than Fairphone 4. |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Fairphone 4 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 23 mm | - | |
| Digital Zoom | - | 8x | |
| Special Effects | HDR | HDR | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, HYPERLAPSE, Nightscape capture mode, Portrait, Filter mode, Super Macro, Portrait video, UltraShot HDR, Smart Scene Recognition, Tilt-shift mode, Focus Peaking, Cat/Dog Face Focus, Super Stable, Video Nightscape | Slow motion video, Pro mode, night mode | |
| Light Source | Dual LED flash | Dual 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, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 30fps | 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) | |
| Camera Features (Functions) | Tracking Focus, Phase Detect Auto-Focus (PDAF), Continuous Auto Focus (CAF), RAW image capture, Dual Native ISO, 2x2 On-Chip Lens (OCL), Hasselblad Camera, Natural Color Calibration, 12-bit RAW | Laser detection auto focus (LDAF), TOF sensor, colour sensor |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 50 Megapixel | 48 Megapixel | OnePlus 9 has better second camera resolution than Fairphone 4. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/1.56" | - | |
| Sensor Name (2nd Camera) | Sony Exmor RS IMX766 sensor | - | |
| 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. |
| Lens Element Qty (2nd Camera) | 7-element | - | |
| Field of View (2nd Camera) | 119 degree(s) | 120 degree(s) | Fairphone 4 has larger second camera lens field of view than OnePlus 9. |
| Pixel Size (2nd Camera) | - | 0.8 μm | |
| Minimum Focal Length (2nd Camera) | 14 mm | - | |
| Camera Functions (2nd Camera) | - | Macro focus | |
| Still Image Resolutions | - | 8000 x 6000 | |
| Camera Features (2nd Camera) | 2x2 On-Chip Lens (OCL), Freeform Lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Lens Element Qty (3rd Camera) | 3-element | - | |
| Camera Functions (3rd Camera) | Monochrome | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 25 Megapixel | Fairphone 4 has better front camera resolution than OnePlus 9. |
| Sensor Size (Front) | - | 1/2.78" | |
| Sensor Name (Front) | Sony Exmor RX IMX471 sensor | Sony Exmor RS IMX576 sensor | |
| Lens Aperture (Front) | F/2.4 | F/2.2 | Fairphone 4 has better front lens aperture than OnePlus 9. |
| Pixel Size (Front) | 1 μm | - | |
| Focus Adjustment | Focus free | Focus free | |
| Special Effects (Front) | HDR, face retouch | HDR | |
| Camera Modes (Front) | Time-lapse mode | - | |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Front) | Electronic Image Stabiliser (EIS) | Up to 8x digital zoom, digital image stabilisation, ToF sensor, colour sensor |
| BATTERY AND CHARGING | OnePlus 9 | Fairphone 4 |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 3905 mAh | OnePlus 9 has larger battery capacity than Fairphone 4. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge, Warp Charge 65T technology | - | OnePlus 9 has fast charging technology. |
| Recharge Time (Charging Time) | 29 min | - | |
| Wireless Charging | Yes | - | OnePlus 9 can be charged wirelessly. |
| Wireless Charging Standards | Qi | - | |
| 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 | OnePlus 9 | Fairphone 4 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | OxygenOS (based on Android 11) | Android 11 | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, GNSS |
| COMMUNICATIONS | OnePlus 9 | Fairphone 4 |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, VoWiFi, 5G NR | |
|---|---|---|---|
| 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 9, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900, 1700, 800 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | 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 66 | 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 | |
| 4G LTE Frequency | 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, FDD 1700 - 2110 AWS-3 | 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 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n78, n40 | 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 AWS-3, TDD TD 3500, TDD 2300 | 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/ax | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.1 LE | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Modem | Snapdragon X55 5G | - |
| MEDIA | OnePlus 9 | Fairphone 4 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, EAC3-JOC, AC-4 | WAV, AAC, AIFF, MP3, FLAC, AAC +, eAAC+, ALAC, OPUS, AMR-WB, AMR-NB, Vorbis, AAC-ELD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | XviD, DivX, MPEG-2, H.264, H.263, HEVC, VP9 | |
| Sound Enhancements | Qualcomm aptX audio, Qualcomm aptX HD audio, Dolby Atmos Surround Sound | - |
| FEATURES | OnePlus 9 | Fairphone 4 |
|---|
| 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, flicker sensor, sensor core | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | Fingerprint reader (side) | |
| Additional Phone Features | Noise Cancellation Technology, MIMO technology, Gesture Controls, OnePlus Switch, Alert Slider, dual stereo speakers, Zen mode 2.0, OnePlus Games | MIMO technology, modular and repairable design, recycled and fair materials |
| OTHERS | OnePlus 9 | Fairphone 4 |
|---|
| Included Accessories | SIM card removal tool, sticker, screen protector, USB-C to USB-C cable, protective case, Warp Charge 65 power adapter | - | |
|---|---|---|---|
| Compliant Standards | SGS | MIL-STD 810G, IP54 |
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