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Samsung Galaxy J7 Duo Review

Smartphones are available on the market with a variety of design characteristics, and are often replaced because of socioeconomic and technical reasons. So, it’s very important to comprehend some specific hardware components (e.g. display, battery, back cover), as well as the OS, and gain long time use of such devices so you do not need to replace them shortly. Fortunately, this Samsung Galaxy J7 Duo review will help you to cover all the specifications that you need to buy your best smartphone.

Samsung Galaxy J7 Duo model status in the market is Available. However, it is announced by Samsung company on 4/1/2018 and released in 2018, April.
Samsung Galaxy J7 Duo has 32GB 3GB RAM, and 3000 mAh battery life (the more mAh value gives more strength to the battery). When you buy Samsung Galaxy J7 Duo, you will gain 13 MP, f/1.9, AF rear camera and 8 MP, f/1.9 selfie camera.
Samsung Galaxy J7 Duo comes with a 5.5 inches, 83.4 cm2 display size.
Samsung Galaxy J7 Duo has these software and hardware platforms:
* Android 8.0 (Oreo), upgradable to Android 9.0 (Pie) OS,
* Exynos 7885 (14 nm) Chipset
* Octa-core (2×2.2 GHz Cortex-A73 & 6×1.6 GHz Cortex-A53) Processor.

In this article, you will find Samsung Galaxy J7 Duo review which will sort out the main Samsung Galaxy J7 Duo features that you need to make a well-informed decision about your new mobile phone.

Samsung Galaxy J7 Duo Review of The Body Features

Samsung Galaxy J7 Duo Review - Body Features

When planning to purchase a new cellular phone, the body parameters must be taken into consideration. These physical features include body size, weight, and build. You can read Samsung Galaxy J7 Duo review in terms of the body features in the lines that follow.

* Body Dimensions: 153.5 x 77.2 x 8.2 mm (6.04 x 3.04 x 0.32 in) which means height, width, and thickness (depth) respectively.

* Body Weight: 174 g (6.14 oz).
For mobile phones, a weight between 140g to 170g is considered suitable and appropriate for most users.

Get Your Preferred Color – Samsung Galaxy J7 Duo Review

Samsung Galaxy J7 Duo Review - Available Colors

Competition between smartphone manufacturers is no longer limited to technological matters, such as memory size, camera capabilities, and processor power. Rather, it went beyond the competition in the colors of the mobile phone covers, which have become significantly more diverse.
Samsung Galaxy J7 Duo comes in the following colors: Black, Gold, Rose Gold, White, Blue.

All About Display features in one Samsung Galaxy J7 Duo Review

Samsung Galaxy J7 Duo Review - Display Specs

As smartphones inventions evolve very fast, it is difficult to know any cellphone or combination of features as the best. This applies to the quality and specs of the screen. In fact, choosing it depends on your preference and the areas in which you use cellular phones. In the following lines, we will sort out the fundamental display features of Samsung Galaxy J7 Duo

Display Type: Super AMOLED – Remember that you need to look for a screen type that grants more bright colors and proper black color.

Display Size: 5.5 inches, 83.4 cm2 – The popular standard screen size of cell phones now averages between 4.7 and 6.5 inches.

Screen To Body Ratio: (~70.4% screen-to-body ratio). It gives the percentage of how much the display covers the front face. Smartphones that have the largest screen-to-body ratio look delicate and that give them a premium look.

Display Ratio: 16:9 ratio. the Aspect ratio is the relevance between the height and width of the smartphone screen. Taller aspect ratios like 19.5:9 is coming with the most modern smartphones, and it is suitable for web browsing, and other portrait orientation apps.

Display Resolution: 720 x 1280 pixels. It is the clarity of an image video in detail and sharpness. The pixel resolution for high-definition screens is 1920 x 1080.

Display Density: (~267 ppi density). It is the number of physical pixels per inch on a screen and is measured in Pixels Per Inch (ppi).

Samsung Galaxy J7 Duo Review of The Camera Specifications

Samsung Galaxy J7 Duo Review - Camera Specifications

In the following lines, you will find Samsung Galaxy J7 Duo review about the main cameras.
* Main Camera Single: 13 MP, f/1.9, AF.
The following lines sort out some of the symbols included in the camera features:
MP (Megapixels) is the resolution of the image taken by a cellphone.
(f value) is the aperture of a lens that indicates how much light it lets in. A bigger aperture lets in more light, and vice versa.
(mm value) This measurement is of the lens’s focal length, which affects the final image that is produced by your camera.
AutoFocus (AF) is the function of a camera to automatically focus on a subject.

* Main Camera Dual: 5 MP, f/1.9, (depth)
The main camera features are as follows:
LED flash, HDR, panorama, 1080p@30fps main video camera.

Here is the Samsung Galaxy J7 Duo review of the selfie camera:
* Selfie Camera Single: 8 MP, f/1.9
The main camera features are:
LED flash, 1080p@30fps Selfie video camera.

What’s The SIM card? Samsung Galaxy J7 Duo Review

Samsung Galaxy J7 Duo Review - SIM Features

A SIM (Subscriber Identity Module) is an electronic card that connects your smartphone to the mobile network so that you can make calls, send SMS messages, and use mobile internet services like 3G, 4G LTE, and 5G. For more info about 3G / 4G networks, refer to Samsung Galaxy J7 Duo 3G or Samsung Galaxy J7 Duo 4G articles You can use your cellular phone without a SIM card for many things, like using the calculator, saving notes, playing games, capturing photos, and many other uses. The following three sizes are available for SIM cards: Standard (Mini), Micro, and Nano.

This cellphone model comes with Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by) card. For more info, refer to How to insert SIM card in Samsung Galaxy J7 Duo article.
Here are the common SIM card kinds:
* Nano-SIM. It is the smallest removable SIM card size, so it is the most modern one (other than eSIMs, which we’ll read about very soon) and most modern devices are using it.

* Micro-SIM. They have a slightly larger chip, and they haven’t been utilized too often recently.

* Standard SIM (Mini-SIM). It is the biggest SIM card size in use, and it’s the most seldom used.

* eSIM. It is an embedded SIM card, meaning that you can’t remove it from your smartphone.

The Performance – Samsung Galaxy J7 Duo Review

Samsung Galaxy J7 Duo Review - Hardware Performance

This model has Exynos 7885 (14 nm) chipset.
A chipset on a cellphone is most usually termed as a system-on-chip (SoC). It is an integrated circuit that combines all the basic components of a device on one chip. The most common kinds are Qualcomm Snapdragon, MediaTek chipsets, and Intel Atom.

Samsung Galaxy J7 Duo has Octa-core (2×2.2 GHz Cortex-A73 & 6×1.6 GHz Cortex-A53) CPU.
The performance of the CPU will be improved if the CPU has more cores and a higher speed of processing.

Samsung Galaxy J7 Duo has the following GBU (Graphics Processing Unit): Mali-G71.
All graphics jobs are handled and accelerated by this chip, and the faster the GPU, the more powerful the cellphone will be.

Samsung Galaxy J7 Duo Review of the Storage features and Capacity

Samsung Galaxy J7 Duo Review - Storage and Capacity

The amount of storage that a new cellular phone provides is one of the fundamental decision considerations. Actually, Samsung Galaxy J7 Duo comes with a microSDXC memory card slot, and the following internal storage: 32GB 3GB RAM – 32GB 4GB RAM

Two types of phone’s memory are available:
Internal: It is built into the phone, and can’t be extended. Nowadays, the majority of smartphones have internal memory that is at least 32GB or 64GB and a few high-end models feature 256GB or 512GB.
External: It is a removable SD card used as an alternative memory to store photos, music, videos, etc., regardless of the type of SD card slot.

Samsung Galaxy J7 Duo Review – Mobile Networks and communication

Samsung Galaxy J7 Duo Review - Networks and Connectivity

A wireless network is the system that provides wireless connections for mobile devices. This is done through telecommunications towers comprising specific separate areas. There are three types of these networks: 3G, 4G (LTE), and 5G. These types are supported by the most modern cell phones.

Samsung Galaxy J7 Duo supports the following networks: 3G. For more information, refer to Samsung Galaxy J7 Duo 3G article. – 4G. For more information, refer to Samsung Galaxy J7 Duo 4G article.

Samsung Galaxy J7 Duo Review – Available Wireless Connections

Samsung Galaxy J7 Duo Review - Wireless Connections

This model supports the following wireless connections:
* WLAN connection: Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot. Wireless Local Area Network depends on Wi-Fi to connect to the home or office wireless network using the local router and offers Internet access.

* Bluetooth connection: 4.2, A2DP, LE}. It is a common wireless communication protocol used to connect two devices together over short distances, allowing them to share data between different devices.

* GBS connection: Yes, with A-GPS, GLONASS, BDS. Global Positioning System enables mobile phones to locate any position you need.

* USB connection: micro-USB 2.0. Universal Serial Bus is wired technology that allows users to connect two devices, such as a smartphone with a PC, to either transfer data or charge the connected device.

* Features Sensors: Fingerprint (front-mounted), accelerometer, proximity. The sensor is a device that detects and majors the changes in the nearby environment such as ambient light and motion.

Samsung Galaxy J7 Duo Review – The Operating System

Samsung Galaxy J7 Duo Review - Operating System

This model comes with Android 8.0 (Oreo), upgradable to Android 9.0 (Pie) operating system.

Samsung Galaxy J7 Duo Review of The Battery Main Specs

Samsung Galaxy J7 Duo Review - Battery Main Specs

Nothing is more essential than the battery of the cellphone that keeps these gadgets running and keeping daily life functioning. The following lines are including Samsung Galaxy J7 Duo review of its main battery.
* Battery Technology: Li-Ion.
* Samsung Galaxy J7 Duo comes with a removable battery.
* Battery Capacity: 3000 mAh. It refers to the amount of storage volume a particular battery can provide. A battery with a 3100 mAh capacity rating could supply a current of 3100 mA for one hour. Higher mAh ratings for the same battery kind will usually mean more working time.

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