Samsung Galaxy Z Flip4 Specifications, Tests and Review

Display
6.7", 2640 x 1080
Front Camera
10 Megapixel
Main Camera
12 Megapixel
Operating System
Android 12
Storage
128 GB
RAM
8 GB
Battery
3700 mAh

Other Variants:

Get the key specs, technical data, ratings and full review of Samsung Galaxy Z Flip4 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 Samsung Galaxy Z Flip4
Product Type Smartphone
Manufacturer Model Number SM-F721B
Form Factor Folder (flip) - touch screen, dual screen
Height 165.2 mm Better than 97 % of phones rated.
Width 71.9 mm Better than 64 % of phones rated.
Depth 6.9 mm Better than 99 % of phones rated.
Weight 187 g Worse than 82 % of phones rated.
Dimensions Details Unfolded - 71.9 mm x 6.9 mm x 165.2 mm
Folded - 71.9 mm x 17.1 mm x 84.9 mm
Body Colour Blue | Bora purple | Pink gold | Graphite
Body Material Corning Gorilla Glass Victus, Armour Aluminium frame
Protection Water-resistant
Waterproof (Water-resistant) Yes Better than 86 % of phones rated.
IP rating IPX8
SAR Value 2.75 W/kg (limb), 1.151 W/kg (head), 1.198 W/kg (body)
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 Samsung Galaxy Z Flip4 has dimensions 165.2 mm × 71.9 mm × 6.9 mm. Its weight is 187 g. A feature worth highlighting is definitely the water resistance of the phone.

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DISPLAY Samsung Galaxy Z Flip4
Display Type OLED display
Display Technology Dynamic AMOLED 2X
Foldable Display Yes
Display Design Inward folding
Screen Size (Display Size) 6.7" Better than 98 % of phones rated.
Screen Resolution (Display Resolution) 2640 x 1080 pixels Better than 92 % of phones rated.
Display Format Full HD+
Pixel Density 425 ppi Better than 71 % of phones rated.
Colour Depth 16.7 million colours Better than 98 % of phones rated.
HDR Yes Better than 91 % of phones rated.
HDR Technology HDR10+
Display Refresh Rate 120 Hz Better than 94 % of phones rated.
Display Features AOD(Always On Display), Video Wallpaper
Display Protection (Screen Protector) Samsung Ultra Thin Glass
SECOND DISPLAY
Second Display Type OLED display - colour
Second Display Screen Size 1.9"
Second Display Resolution 512 x 260 pixels
Second Display Colour Depth 16.7 million colours
UNFOLDED DISPLAY
Unfolded Display Screen Size 6.7 in
Unfolded Display Resolution 2640 x 1080 pixels

The screen size reaches 6.7" 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. Owing to OLED technology, the display offers a true representation of colours, especially black. The resulting contrast is significantly higher and colours appear more vivid. OLED technology is now part of most smartphones, while LCD displays are becoming a thing of the past in mobile phones. OLED displays also have lower power consumption compared to LCD technology.

Display Resolution of Samsung Galaxy Z Flip4 is 2640 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 425 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.

The refresh rate is 120 Hz. This value indicates how many times per second display shows new information. Previously, 60 Hz was considered the standard, but today the average frequency for mid-range phones is more like 90 Hz. Modern phones now reach frequencies of around 120 Hz and above. Higher frequencies mean a better user experience when browsing the internet and especially when playing games.

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PROCESSOR Samsung Galaxy Z Flip4
Clock Speed 3.18 GHz Better than 99 % of phones rated.
Processor Core Qty 8-core Better than 99 % of phones rated.

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 Samsung Galaxy Z Flip4 is 3.18 GHz. As standard today, you'll find this value between 1.8 GHz and 2.8 GHz.

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MEMORY Samsung Galaxy Z Flip4
RAM 8 GB Better than 92 % of phones rated.
Internal Memory Size (Storage Capacity) 128 GB Better than 90 % of phones rated.
User Memory 99.8 GB
Memory Interface UFS 3.1

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.

Size of the RAM memory tells us how powerful the phone is. Samsung Galaxy Z Flip4 is equipped with 8 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 Samsung Galaxy Z Flip4
MAIN CAMERA
Number of Main Cameras 2
Sensor Resolution 12 Megapixel Better than 62 % of phones rated.
Lens Type Wide-angle lens
Lens Aperture F/1.8 Better than 80 % of phones rated.
Field of View (FoV) 83 degree(s) Better than 71 % of phones rated.
Pixel Size 1.8 μm Better than 93 % of phones rated.
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) Better than 87 % of phones rated.
Focus Adjustment Automatic
Digital Zoom 10x Better than 91 % of phones rated.
Self-Timer Delay Yes
Special Effects HDR, Grid Line
Camera Modes Panorama, Slow motion mode, Pro mode, HYPERLAPSE, Quick Shot, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Clothes, Night view, Portrait, Night, Mountain, Filter mode, Single Take, Pro Video, Portrait video, Director's View
Light Source High CRI 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, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Hyperlapse 4K video support at 30 fps, Super Steady 1080p video support at 30 fps
Camera Features (Functions) Playback zoom, Motion photo, QR-code scanner, RAW image capture, VDIS (Video Digital Image Stabilisation), Tracking AF, Video location tags, Dual Pixel Autofocus technology, AR sticker, Scene Optimiser, Flaw detection, Shot suggestions, AR Emoji, HDR10+ recording, Super steady, HEIF image capture, AR Doodle, Microphone Control, HEVC (High Efficiency Video coding), Dual preview, Auto framing, Corning Gorilla Glass DX (protective lens glass), Auto FPS, AR Emoji Studio, Deco PIC, FlexCam
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel Better than 81 % 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) 123 degree(s) Better than 97 % of phones rated.
Pixel Size (2nd Camera) 1.12 μm Better than 55 % of phones rated.
FRONT CAMERA
Number of Front Cameras 1
Sensor Resolution (Front) 10 Megapixel Better than 71 % of phones rated.
Lens Aperture (Front) F/2.4 Worse than 82 % of phones rated.
Field of View (Front) 80 degree(s) Better than 58 % of phones rated.
Pixel Size (Front) 1.22 μm Better than 94 % of phones rated.
Focus Adjustment Focus free

The rear camera of the phone Samsung Galaxy Z Flip4 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 main lens is designed as Wide-angle lens. The resolution of main lens is 12 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 1.8 μm. Another important factor is the aperture, which in this case is F/1.8 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 10x. 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 123 degree(s). The resolution reaches size of 12 Megapixel. Pixel size in this case is 1.12 μm. In addition, this lens also features lens aperture of F/2.2.

Front camera
The front camera of phone Samsung Galaxy Z Flip4 has one lens. This number of lenses is standard on most smartphones nowadays. The lens is equipped with 10 Megapixel. However, do not forget there are other factors than resolution having impact on the final quality of front camera photos. The pixel size itself is 1.22 μm. The main front lens also achieves F/2.4. As for the field of view of main lens of front camera, it reaches 80 degree(s).

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BATTERY AND CHARGING Samsung Galaxy Z Flip4
Battery Capacity (Battery Size) 3700 mAh Better than 80 % of phones rated.
Fast Charging Technology Qualcomm Quick Charge 2.0, Adaptive Fast Charging Better than 86 % of phones rated.
Wireless Charging Yes Better than 91 % of phones rated.
Wireless Charging Standards WPC, Qi, Fast Wireless Charging 2.0, Wireless PowerShare, Reverse wireless charging
Talk Time 2040 minutes Better than 94 % of phones rated.
Run Time Details Talk (4G): up to 2040 min
Active online usage (LTE): up to 16 hrs
Active online usage (Wi-Fi): up to 16 hrs
Playback (wireless video): up to 19 hrs
Playback (wireless audio): up to 56 hrs

The battery size of Samsung Galaxy Z Flip4 is 3700 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 phone Samsung Galaxy Z Flip4 will last one charge with constant phone calls 2040 minutes. Today, wireless charging feature is popular and appreciated by many users. You don't have to worry about your phone overheating, and it's also practical in that you don't wear out your phone's connector unnecessarily. The fast charging function will also please many people. Owing to fast charging, phone charges up to several times faster, which you will appreciate, for example, on the go.

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CELLULAR Samsung Galaxy Z Flip4
Technology WCDMA (UMTS) / GSM
Mobile Broadband Generation 5G Better than 99 % of phones rated.
Operating System Android 12
User Interface One UI
Intelligent Assistant Bixby
Payment Technology Samsung Pay
Navigation GPS, GLONASS, BeiDou, Galileo, QZSS

Standard 4G connectivity is currently being replaced by 5G, but is still the preserve of the latest phones. Samsung Galaxy Z Flip4 supports 5G. 3G connectivity is now only found in the oldest phones. The operating system in the case of this model is Android 12. This model also offers ability to pay by phone with Samsung Pay.

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COMMUNICATIONS Samsung Galaxy Z Flip4
Data Transmission FDD-LTE, TDD-LTE, LAA, 5G NR FR1
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 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
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
5G NR Band N1, n2, n3, n5, n7, n8, n20, n28, n38, n41, n66, n75, n77, n78, n40, n25, n12
5G NR Frequency FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, SDL DL 1500+, TDD TD 3700, TDD TD 3500, TDD 2300, FDD 1900, n12
Wireless Interface IEEE 802.11a/b/g/n/ac/ax
Bluetooth Bluetooth 5.2 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 5.2 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 Samsung Galaxy Z Flip4
Supported Digital Audio Standards WAV, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128
Supported Digital Video Standards MKV, FLV, AVI, 3GP, M4V, WebM, 3G2, MP4
Sound Enhancements Dolby Digital Plus sound, Dolby Atmos sound technology, Dolby Digital sound
FEATURES Samsung Galaxy Z Flip4
Sensors Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor
Security Devices Face recognition, fingerprint reader (side)
Additional Phone Features MIMO technology, Samsung KNOX, High AOP Mic, Bixby Vision, Secure Folder function, TalkBack, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, Samsung Smart Switch, Flex mode
OTHERS Samsung Galaxy Z Flip4
Included Accessories SIM card removal tool, USB-C cable
Compliant Standards VDE, IPX8
Max Depth of Water Resistance 1.5 m

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