The name Samsung Galaxy J7 is already familiar to smartphone users in Indonesia, especially young people who are still in school.

In 2018, the Samsung Galaxy J7 Duo comes with newer specifications in order to compete with other current output smartphones.

A glimpse of the Samsung Galaxy J7 Duo does not look a striking difference compared to the preceding Galaxy J models. But this seems to be characteristic of Samsung because the differences from each generation to the J Series line are indeed not too many.

The same design

2018 is the year in which smartphones with thin bezels, bangs screens, and loss of physical buttons in front. This seems different on the Samsung Galaxy J7 Duo which still has the same design as the previous model with a home physical button below the screen that also functions as a finger scan sensor.

You Samsung smartphone users will definitely not be familiar with the design of the Galaxy J7 Duo, but this also makes it seem old-fashioned because it still uses a popular design more than 2 years ago. So from that the screen still offers a 16: 9 ratio compared to 18: 9 which is being used by today's smartphones.

Even so, it needs to be recognized that the Samsung Galaxy J7 Duo is quite comfortable to hold for a 5.5-inch smartphone size. Curved edges and sturdy polycarbonate material show Samsung's reliability in presenting a design that has contours right in the hand.

Unfortunately the back navigation button and the menu next to the home button do not have backlight or backlight so it will be quite difficult to find out where the buttons are in the dark room if the user doesn't remember them.

Samsung did not choose the unibody design for the Galaxy J7 Duo so that the rear is possible to be removed. Inside is a SIM card, microSD, and removable battery slot. This is quite rarely found, but it can be a plus for users who prefer to carry a spare battery instead of Powerbank.

At the back there is also a speaker hole placed next to the camera so that it is not easily covered by the hand when using a smartphone in a landscape position.

The camera is quite reliable


The Samsung Galaxy J7 Duo is armed with two 13MP and 5MP rear cameras which both have F1.9 aperture and an 8MP front camera which also has F1.9 aperture for selfie needs. Both front and rear both do not have EIS or OIS, but the camera shutter is fairly fast.

The dual rear camera of the Galaxy J7 Duo allows users to take photos with bokeh photos through the Live Focus feature available in the camera application. With this feature, users can set their own level of blur or blurring themselves.

The resulting bokeh effect is felt to be sufficient if the object being taken has a large size, but it will begin to look short when taking complex objects, especially those with a sidelines. I think this is quite reasonable because there are many smartphones that have difficulty detecting the surface of the object properly until now.

In addition to the Live Focus, Samsung also presents other modes that can be used starting from Pro, HDR, Night, Sport, to Sound & shot. This mode option can be accessed by sliding the screen to the left while sliding to the right will bring up the color filter option.

Samsung also provides an AR Sticker that is very interactive and funny like the one in their flagship class. This AR Sticker will attach stickers to photo objects in real time so the photos look more attractive.

Photographs from the back camera of the Galaxy J7 Duo are fairly good, especially when getting ideal lighting like during the day. The same thing I can't say when taking photos in mini light because the result will be quite dark if you don't use the Night mode.

Both the rear and front cameras both experience post-processing quite aggressively so that sometimes the photo will look blurry and like watercolor if it is enlarged and can be more severe when shooting in dark conditions. Even so, this issue will not be too apparent in normal photo situations.

For this, here are some examples of photos from the Samsung Galaxy J7 Duo camera so you can determine yourself.

Qualified Performance in Life

Samsung Galaxy J7 Duo is included in the middle class which I think is enough to meet the general needs of smartphone users today.

At its center there is the Exynoss 7885 chipset which has eight core 1.6GHz speed and 3GB RAM and 32GB internal storage which can still be upgraded with microSD up to 256GB if the user wants it.

The screen has an HD resolution of 1280 x 720 pixels adjusting to existing specifications. That way the content planned will not be too heavy so that it can be used more optimally.

Galaxy J7 Duo has a deficiency in the sensor segment. Although this smartphone features Fingerprint and Face Recognition features, there is no NFC or Gyroscope support. The sensor is only Proximity and Accelerometer while Ambient and Compass are also absent on this smartphone.

With these specifications, as usual I tried to run several benchmark applications. This synthesis test is carried out to see the performance that can be expected from a smartphone.

The first experiment, I used the Geekbench application to show the performance of the processor when running an application. The result is the Galaxy J7 Duo won 1,218 for single-core and 4,077 for multi-core. This value shows that this smartphone is capable of running everyday applications.

Next I run the popular AnTuTu application. This benchmark application that tests the overall smartphone gives a value of 97,476, making up 26% of other users who have tested smartphones with AnTuTu.

In the last trial, I used the 3DMark application to see its ability to process 3D graphics and PCMark to test performance in running everyday productivity applications.

As a result the Galaxy J7 Duo in Work 2.0 mode won the 4,959 value in PCMark. In 3DMark, this smartphone gets a score of 819 for the Sling Shot test while the Ice Storm test cannot be run at all because it always crashes. These results are somewhat unsatisfactory for me.

Then how is the performance in the real world? Samsung Galaxy J7 Duo has no problems when used daily such as browsing the internet, watching youtube, or opening social media applications. All my favorite applications can run smoothly and the transition when moving applications also feels smooth.

Unfortunately the same thing I can't say when trying to play games. Actually the game can run quite smoothly, but this smartphone starts to look difficult when playing games that have more realistic 3D graphics.

In the Mobile Legends game, the Samsung Galaxy J7 Duo is able to use the highest possible graphics settings including activating the High Frame Rate feature for smoother movement. Therefore it can be said that this smartphone is strong enough to play MOBA games or the like.

The same thing unfortunately I didn't meet when I tried playing the PUBG Mobile game that had heavier 3D graphics. In Medium settings that are automatically set, movements sometimes experience stutter or fracture.

Targeting the enemy when you want to shoot becomes more difficult because the movements are less smooth so it often takes a long time to really hit the mark.

Although the Galaxy J7 Duo supports high graphics and frame rates, it is not recommended to use it. I have to choose Smooth graphics to be able to play PUBG Mobile comfortably.

After trying this smartphone for some time, then I can say that the Galaxy J7 Duo is only capable of running casual games or those that don't mean much. But for those of you who want to play 3D games with high-quality graphics need to reconsider .

Surely if you really only want to use a smartphone for browsing and opening social media, then the performance provided by the Galaxy J7 Duo is very capable.

Adequate for Multimedia

Samsung Galaxy J7 Duo is equipped with a HD resolution screen of 1280 x 720 pixels with a span of 5.5 inches. This screen already uses Super AMOLED panels so that the brightness and accuracy of the colors they have are far better than standard LCD panels.

The content displayed looks sharp and detailed so it makes me feel more comfortable watching videos on the Galaxy J7 Duo. When using a smartphone in the sun there is no problem because this screen has a high enough brightness level, especially there is an Outdoor mode that makes the screen look clearer.

In addition, Samsung also presents several screen modes that can be used such as AMOLED cinema and AMOLED photo to maximize color coverage according to preference. I myself still use the Adaptive display mode which will adjust automatically for optimal results.

Unfortunately, Samsung still chooses a screen with a 16: 9 ratio while most smartphones today carry a full screen design with a ratio of 18: 9. Not a real problem when watching videos or playing games, but there is little sense of dissatisfaction for those who often use a full-screen smartphone.

Regarding audio, the speakers on the Samsung Galaxy J7 Duo are fairly ordinary. The sound produced is not too loud and the bass is not too energetic. This smartphone speaker is enough to be used to play or listen to light music, but if you want to get maximum experience, you should use additional earphones.

All-day battery life

Samsung Galaxy J7 Duo has a capacity of 3,000 mAh battery which is believed to power this smartphone to be used in daily activation. The time needed to fill the battery to full is fairly standard, which is about 2 hours 10 minutes.

Through the Geekbench benchmark it can be seen that the battery of the Galaxy J7 Duo can last for 7 hours 32 minutes until the battery is completely discharged. Good enough, but in my opinion the Galaxy J7 Duo should last even longer.

When used in my daily life that is not too intensive, the Galaxy J7 Duo can easily last up to night without the need to recharge at midday. Even watching two full films while on the road, the battery is only reduced by about 25%.

That way the Galaxy J7 Duo can accompany your daily activities without the need to be afraid to be afraid of losing it during the day. Of course, keep in mind how many applications installed on a smartphone will be very influential.

Highly Responsive Operating System

The Samsung Galaxy J7 Duo is no longer running TouchWiz but rather the display variant of the successor interface named Samsung Experience 9.0 based on the Android 8.0 Oreo operating system.

Compared to its predecessor, the Samsung Experience feels smooth when used. Opening, closing, and other activities carried out on this smartphone feels fast and responsive. I haven't even experienced the name slow down or slowing down when navigating on the Galaxy J7 Duo.

This smartphone also supports finger and face scan sensor security solutions. Both can detect my face and fingerprint quite accurately and quickly. I rarely have to try twice to unlock my smartphone.

Of course not to miss additional applications such as Samsung Max which can save internet data usage, Smart Thing as a hub for connecting other Samsung devices, and Samsung Health which can help monitor the health of users.

Of all the features presented by Samsung on the Galaxy J7 Duo, there are two features that attract my attention. First, there is a Secure Folder that can store personal data more safely so that other people cannot easily open it, especially when lending it.

One more feature is the Adaptive WiFi Controller. This feature can remember where the user was connected to a WiFi network. Later the WiFi network will automatically turn on when around the area and automatically die when going away.

That way the battery will become more economical because WiFi does not have to be kept on to be able to be directly connected and users also do not need to activate or deactivate WiFi connectivity manually.

Bixby also attended the Samsung Galaxy J7 Duo, but until now I have not found a reason to use it because what I want has been fulfilled by the Google Assistant.

Final conclusion

Samsung Galaxy J7 Duo can be said according to expectations that can be expected on a middle-class smartphone. But with the selling price of Rp3,799,000 at the start of the launch, it was difficult to choose this one smartphone because there were several competitors who offered better performance at lower prices.

This non-current design will also make some users less interested. Plus various types of sensors are absent on this smartphone, making the price feel expensive.

Even so, this smartphone has a camera that is quite decent and capable to record your every moment. Likewise for the matter of performance, the application is guaranteed to run smoothly and you can use your smartphone comfortably thanks to the look of Samsung Experience.

The removable back also has its own advantages, especially for those who want to replace the battery themselves. Plus the configuration of three slots for microSD and SIM cards make users more free without worrying about choosing one.

Surely with this Galaxy J7 Duo, you will get a Samsung-quality smartphone that is guaranteed and excellent after-sales service compared to competitors.