Fairphone 4 Specifications, Tests and Review

Display
6.3", 2340 x 1080
Front Camera
25 Megapixel
Main Camera
48 Megapixel
Operating System
Android 11
Storage
128 GB
RAM
6 GB
Processor
Qualcomm Snapdragon 750G
Battery
3905 mAh

Other Variants:

Get the key specs, technical data, ratings and full review of Fairphone 4 all in one place. Compare your selected model with other alternatives and give your decision on the best phone a solid base with our comprehensive overview.

DESIGN AND DIMENSIONS Fairphone 4
Product Type Smartphone
Form Factor Touch
Height 162 mm Better than 91 % of phones rated.
Width 75.5 mm Better than 82 % of phones rated.
Depth 10.5 mm Worse than 53 % of phones rated.
Weight 225 g Worse than 96 % of phones rated.
Body Colour 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
SIM Card Type (Size) Nano SIM, Electronic SIM card (e-SIM)
SIM Card Qty Dual-SIM

The Fairphone 4 has dimensions 162 mm × 75.5 mm × 10.5 mm. Its weight is 225 g.

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DISPLAY Fairphone 4
Display Type LCD display
Display Technology IPS
Screen Size (Display Size) 6.3" Better than 84 % of phones rated.
Screen Resolution (Display Resolution) 2340 x 1080 pixels Better than 85 % of phones rated.
Display Format Full HD+
Pixel Density 410 ppi Better than 64 % of phones rated.
Aspect Ratio 19.5:9
Colour Depth 16.7 million colours Better than 98 % of phones rated.
Display Features Full Lamination, Pixelworks technology
Display Protection (Screen Protector) Corning Gorilla Glass 5 (scratch resistant glass)

The screen size reaches 6.3" inches. With a large display, phone offers a great experience for watching videos, playing games and reading. The best phones today are 6.5'' or more. They have the advantage of a large display area that allows you to see more content than with conventional display sizes. LCD displays are currently taking a back seat. This is mainly due to higher power consumption. In addition, they have the disadvantage of lower colour contrast, which can be reflected e.g. in the resulting photos. On the other hand, phones with LCD displays are in general cheaper than those with OLED technology.

Display Resolution of Fairphone 4 is 2340 x 1080 pixels. A higher display resolution is a prerequisite for a sharper image. The standard for mid-range phones today is a Full HD resolution of 1920 × 1080 px. Cheaper phones, which usually have a smaller diagonal, have an HD resolution of 1280 × 720 px. Smaller resolutions can only be found in older models. Best phones, on the other hand, have a 4K resolution of 3840 x 2160 px. Another important factor having impact on the final image is display´s pixel density. In case of this model, the value reaches 410 ppi. With pixel density, the higher the value, the sharper the image will be. On average today, the image fineness value is around 350-400 ppi. This will guarantee a sufficiently fine and sharp image for normal use. However, the best phones on the market today are equipped with pixel density of 450 ppi or higher.

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PROCESSOR Fairphone 4
Processor Type (CPU) Qualcomm Snapdragon 750G
Processor Number SM7225
Clock Speed 2.2 GHz Better than 79 % of phones rated.
Processor Core Qty 8-core Better than 99 % of phones rated.
Graphics System (GPU) Qualcomm ADRENO 619

Fairphone 4 is supplied with Qualcomm Snapdragon 750G. The number of processor cores is 8. It is a number of cores that plays an important role in evaluating the performance of phone as it is responsible for computing operations. Smartphones already commonly have a core count of around 4 to 8. Multi-core processors can perform better and reduce the processing time of a request to a minimum, which is reflected in the responsiveness of the phone, e.g. in the speed of opening applications. Another important parameter is the processor frequency, which indicates how many instructions the phone can process in one second. Similar to refresh rate, the higher the number, the faster the phone responds. Processor frequency of phone Fairphone 4 is 2.2 GHz. As standard today, you'll find this value between 1.8 GHz and 2.8 GHz.

The processor also includes the graphics accelerator Qualcomm ADRENO 619.

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MEMORY Fairphone 4
RAM 6 GB Better than 85 % of phones rated.
Internal Memory Size (Storage Capacity) 128 GB Better than 90 % of phones rated.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSD, microSDXC - up to 2 TB

One of the most important parameters for user´s decision is often internal memory capacity. The larger it is, the more apps, photos, movies and other files your phone can store. This phone has 128 GB storage. It is currently the most common storage size among today´s smartphones. The capacity is perfectly adequate for the average user. It will allow you to store thousands of photos, high-resolution videos, dozens of apps and several games on your phone. But if you're one of those really demanding users and you use your phone to shoot 4K videos etc., then you should rather pay extra to have a larger storage of 256 GB or more. Nowadays, you can usually find one phone model on the market with several different memory sizes. This allows each user to choose what suits them best.

For this model it is possible to increase the storage size by inserting a memory card.

Size of the RAM memory tells us how powerful the phone is. Fairphone 4 is equipped with 6 GB. Commonly today you will find phones with 6 to 8 GB of RAM. This means that the phone can easily handle normal operation and more demanding applications or games. Higher RAM of 12 GB can be found in best phones on market and are ideal especially for avid gamers. On the other hand, operating memory below 4 GB is more of an issue with lower-end phones and older models. However, even they will find their fans among less demanding users, who don´t want to spend much on buying new phone.

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CAMERA Fairphone 4
MAIN CAMERA
Number of Main Cameras 2
Sensor Resolution 48 Megapixel Better than 93 % of phones rated.
Sensor Size 1/2" Better than 59 % of phones rated.
Sensor Name Sony Exmor RS IMX582 sensor
Lens Aperture F/1.6 Better than 98 % of phones rated.
Pixel Size 0.8 μm
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) Better than 87 % of phones rated.
Focus Adjustment Automatic
Digital Zoom 8x Better than 79 % of phones rated.
Special Effects HDR
Camera Modes Slow motion video, Pro mode, night mode
Light Source 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, 4000 x 3000 (4K UHD)
Camera Features (Functions) Laser detection auto focus (LDAF), TOF sensor, colour sensor
SECOND CAMERA
Sensor Resolution (2nd Camera) 48 Megapixel Better than 97 % of phones rated.
Lens Type (2nd Camera) Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.2 Better than 87 % of phones rated.
Field of View (2nd Camera) 120 degree(s) Better than 80 % of phones rated.
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
Sensor Resolution (Front) 25 Megapixel Better than 94 % of phones rated.
Sensor Size (Front) 1/2.78"
Sensor Name (Front) Sony Exmor RS IMX576 sensor
Lens Aperture (Front) F/2.2 Better than 51 % of phones rated.
Focus Adjustment Focus free
Special Effects (Front) HDR
Video Resolutions (Front) 1920 x 1080 (1080p) at 30 fps
Camera Features (Front) Up to 8x digital zoom, digital image stabilisation, ToF sensor, colour sensor

The rear camera of the phone Fairphone 4 has 2 lenses. Today's modern phones usually have several rear lenses. The most common are macro lens, telephoto lens and wide-angle lens. Each is used to capture the perfect photo - macro lens is designed for close-up photography, telephoto lens, often equipped with an optical zoom, is for photos of objects in distance, and wide-angle lens captures larger areas where you need a wider field of view. The resolution of main lens is 48 Megapixel. Nonetheless, resolution alone does not necessarily mean a good photo. Therefore, you should look at other parameters such as lens aperture or pixel size. Pixel size is typically around 0.8-1.8 μm in better mobile phones. The higher the value, the better the quality of the resulting photo should be. In the case of main lens, the pixel size reaches 0.8 μm.

The size of the phone's sensor is also among the parameters that affect quality of the photo. In case of Fairphone 4, it is 1/2". Focus mainly on the value after the slash, where the higher it is, the better photo quality will be. Another important factor is the aperture, which in this case is F/1.6 and determines how much light passes through the sensor. Best phones have an aperture of up to F/1.5. But the most common lenses today are F/1.8 to F/2.2. In this case, the lower the number after the slash, the higher the photo quality.

Digital zoom in this case offers zooming up to 8x. Of course, the higher the lens value, the more distant object can be zoomed in. Nonetheless, the disadvantage of digital zoom is that the quality and sharpness of photo deteriorates when using it. An undeniable advantage is the optical image stabilisation, which makes image significantly more stable without any loss in quality. Cheaper phone models are equipped with electronic stabilisation, which has a negative effect on the resulting image quality.

Second camera
The second lens of rear camera is designed as Ultra wide-angle lens. The field of view of second lens reaches 120 degree(s). The resolution reaches size of 48 Megapixel. Pixel size in this case is 0.8 μm. In addition, this lens also features lens aperture of F/2.2.

Front camera
The front camera of phone Fairphone 4 has one lens. This number of lenses is standard on most smartphones nowadays. The lens is equipped with 25 Megapixel. However, do not forget there are other factors than resolution having impact on the final quality of front camera photos. The main front lens also achieves F/2.2.

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BATTERY AND CHARGING Fairphone 4
Battery Capacity (Battery Size) 3905 mAh Better than 81 % of phones rated.
Standby Time 200 hours Worse than 83 % of phones rated.
Talk Time 780 minutes Better than 63 % of phones rated.
Run Time Details Talk: up to 780 min
Standby: up to 200 hrs
Battery Technology Lithium Ion

The battery size of Fairphone 4 is 3905 mAh. Nevertheless, battery capacity is not the only factor that affects the phone's battery life. For example - the size of the display, the performance of the processor, the use of data functions and, of course, the intensity of use of phone in general all have a significant impact on battery life. Standard for most smartphones today is a battery capacity of around 4500 to 5000 mAH. Phones with this battery size usually guarantee a phone life of at least 1 day. Older or cheaper smartphone models can then reach battery capacities typically around 2500 mAH and below. With this capacity, you may find that if you use your phone heavily, you may need to recharge your phone during the day.

The standby time for this phone is 200 hours and tells us how long the phone lasts on a single charge when you're not actively using it. The phone Fairphone 4 will last one charge with constant phone calls 780 minutes.

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CELLULAR Fairphone 4
Technology WCDMA (UMTS) / GSM
Mobile Broadband Generation 5G Better than 99 % of phones rated.
Operating System Android 11
Navigation GPS, A-GPS, GLONASS, BeiDou, Galileo, GNSS

Standard 4G connectivity is currently being replaced by 5G, but is still the preserve of the latest phones. Fairphone 4 supports 5G. 3G connectivity is now only found in the oldest phones. The operating system in the case of this model is Android 11.

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COMMUNICATIONS Fairphone 4
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, VoWiFi, 5G NR
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 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 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 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, 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
Bluetooth Bluetooth 5.1 LE
NFC Yes Better than 66 % of phones rated.

Contactless payments are not a problem with this phone, thanks to NFC function. It can also be used, for example, to unlock doors or load menus in a restaurant using an NFC tag. Bluetooth 5.1 LE must not be missing from the basic package. It makes it easy to connect wireless headphones to your phone, connect your phone to your TV, tablet, speaker and more.

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MEDIA Fairphone 4
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
Sensors Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor
Security Devices Fingerprint reader (side)
Additional Phone Features MIMO technology, modular and repairable design, recycled and fair materials
OTHERS Fairphone 4
Compliant Standards MIL-STD 810G, IP54

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