- Too little RAM memory (2 GB RAM)
- Low pixel density screen (267 ppi)
The Samsung Galaxy J4 sports a standard 5.5-inch AMOLED display. The 14nm Exynos 7570 chipset powers the device. Made for entry-level handsets, the chip includes four Cortex-A53 cores running at a clock speed of 1.4GHz. On the back is a 13MP camera, while a 5MP selfie snapper (with flash) is found at the front. Keeping the lights on is a 3000mAh battery, and the unit is equipped with dual-SIM slots and Android Oreo.
- 5.97 x 3.04 x 0.32 inches (151.7 x 77.2 x 8.1 mm)
6.17 oz (175 g)
- Touch sensitive control keys
- Android (8.0), Samsung Experience UI
- 6.17 oz (175 g)
- Physical size:
- Pixel density:
Pixel density – The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.
Technology – There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes.
Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed.
Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.
- Screen-to-body ratio:
Screen-to-body ratio – Shows what part of the frontal area of a phone its screen occupies.
- Ambient light sensor, Proximity sensor
- Aperture size:
Aperture size – The aperture of a camera is the opening through which light travels before it reaches the camera sensor. The smaller the number is, the bigger this opening is, allowing for more light to pass.
- Hardware Features:
- 1920×1080 (1080p HD) (30 fps)
- Video calling, Video sharing
- Front-facing camera:
- System chip:
System chip – Most modern handsets use an advanced chip that includes many of the device’s hardware modules like the processor, Wi-Fi, Bluetooth and sometimes even the wireless radio. This field shows what particular system chip (or System-on-a-Chip) is used in the phone.
- Samsung Exynos 7 Quad 7570
Processor – The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.
- Quad-core, 1400 MHz, ARM Cortex-A53, 64-bit, 14 nm
- Graphics processor:
Graphics processor – The graphics processor is important for the smooth operation of the system and especially in games and other applications that may involve complex graphics and animations.
- System memory:
System memory – System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.
- Built-in storage:
Built-in storage – Bigger storage capacity allows you to keep more content saved onto your device, such as more applications, photos or video. Games and video content typically take up the biggest amount of storage space.
- Maximum User Storage:
- Storage expansion:
Storage expansion – Some handsets allow you to expand their storage capacity by using a memory expansion card – most often microSD. Expansion memory is mostly suitable for media storage, such as photo, video or music content.
Capacity – The bigger, the better! However, battery capacity is not the only factor that has an effect on battery life. Those include the chipset in use, the software running on the device, as well as the consumer’s unique usage pattern.
- Talk time (3G):
the Internet use:
- Music playback:
- Video playback:
- 20.00 hours
- Screen mirroring:
- Music player:
- Filter by:
- Album, Artist, Genre, Playlists
- Album art cover, Background playback
- Filter by:
- LTE (FDD):
- LTE (TDD):
- Micro SIM:
- Multiple SIM cards:
- Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
- Other features:
- Voice dialing, Voice commands, Voice recording
- Mobile hotspot:
Mobile hotspot – Turns your phone into a Wi-Fi access point to which other Wi-Fi-capable devices can connect. These devices can then access the internet via your phone’s data connectivity.
Positioning – This field shows the positioning systems supported by the device. The most common types are GPS and A-GPS.
GPS – This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather.
A-GPS – A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization.
- GPS, A-GPS, Glonass, BeiDou
- Turn-by-turn navigation, Voice navigation
- VoIP, Tethering, Computer sync, OTA sync
This device is also known as
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