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Should you buy Samsung Galaxy A51 128GB or QMobile Energy X2 16GB? Compare the differences in functions and specifications/performances thoroughly

Created date: 2019-12-11 21:14:40, Updated date: 2021-10-20 22:39:23

Samsung Galaxy A51 128GBQMobile Energy X2 16GB
Samsung Galaxy A51 128GBQMobile Energy X2 16GB

How did the evaluations between the "Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB" differ when we compared the two? We reviewed each of the most commonly scrutinized features. If you are thinking about which smartphone to get, check out this review immediately!

Samsung Galaxy A51 128GBQMobile Energy X2 16GB
Samsung Galaxy A51 128GB

QMobile Energy X2 16GB

General rating:
Holding comfortrating-image3.3
73.6mm x 158.5mm x 7.9mm
rating-image3.1
73.0mm x 143.0mm x 9.9mm
Weightrating-image3.1
172.0g
rating-image2.8
184.0g
Screen sizerating-image4.5
6.5inch
rating-image3.7
5.0inch
Display qualityrating-image4.2
404ppi
rating-image3.0
293ppi
Battery liferating-image4.0
4000.0mAh
rating-image4.2
5000.0mAh
Processing powerrating-image4.5
2.3GHz+1.7GHz×8(8.0-cores)
rating-image1.8
1.3GHz×4(4.0-cores)
Memory capacityrating-image4.5
6.0GB
rating-image2.5
2.0GB
Storage capacityrating-image4.5
128.0GB
rating-image2.5
16.0GB
Rear camera performancerating-image4.9
48.0MP
rating-image2.5
8.0MP
Front camera performancerating-image4.9
32.0MP
rating-image2.5
5.0MP

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", performance comparison

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB" size comparison. Which to choose?

The size of the body has a big influence on the ease of carrying and one-handed operation. The narrower the width, the easier it is to firmly grasp and hold, but you also have to take into account the device's thickness. Also, if the width and height are smaller, its easier to operate one-handed since its easier to extend your fingers. On the contrary, if the width and height are large, it's difficult to fit in your pocket and is bulky even when put in a bag, and portability is impaired.

The "Samsung Galaxy A51 128GB" has a width of 73.6mm, a length of 158.5mm, and a thickness of 7.9mm. Also, the "QMobile Energy X2 16GB" has a width of 73.0mm, a length of 143.0mm, and a thickness of 9.9mm.

Comparing the width and thickness of the body, there isn't much difference between the "Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB" in terms of size. For that reason, the ease of gripping and carrying the devices in one hand is about the same for both. Therefore it's better to compare them in terms of performance and functionality.

Comparing the width and thickness of the body, the "QMobile Energy X2 16GB" is a more compact size than the "Samsung Galaxy A51 128GB". For that reason the "QMobile Energy X2 16GB" has higher one-handed operability, and has greater portability, being less likely to get in the way when being carried. For these reasons, we recommend the "QMobile Energy X2 16GB".

Comparing the overall size of the two devices, there isn't a big difference in size between the "Samsung Galaxy A51 128GB" and the "QMobile Energy X2 16GB". For that reason the ease of carrying and use with one hand is about the same for both. That's why it is better to compare the two in terms of other aspects of performance and functionality.

ScoreDimensions (width x height x thickness)
Samsung Galaxy A51 128GB65/10073.6mm x 158.5mm x 7.9mm
QMobile Energy X2 16GB62/10073.0mm x 143.0mm x 9.9mm

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", which is more comfortable to hold? Weight comparison

The weight of the device affects hand fatigue and the burden placed upon the wrist. The lighter it is, the longer you'll be able to operate the device without tiring. Also, if the burden placed on the wrist is lower, you'll be able to use the device more comfortably. However if the weight isn't right for you, it could place more of a burden on your body, causing you to feel stress.

The weight of the "Samsung Galaxy A51 128GB" is about 172.0g, and the weight of the "QMobile Energy X2 16GB" is about 184.0g. Comparing the weight of the two devices, there isn't much difference in weight between the "Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB". That's why the likelihood of fatigue in the fingers and wrists after extended use is about the same for both. That's why it is better to compare the two in terms of other aspects of performance and functionality.

ScoreWeight
Samsung Galaxy A51 128GB61/100172.0g
QMobile Energy X2 16GB56/100184.0g

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", whose display is easier to use?

The size of the screen affects usability and screen visibility. A larger screen means larger letters and buttons on apps, so the user is less likely to tap adjacent buttons by mistake. In addition, the user can enjoy a more intense experience when playing games and watching videos.

The "Samsung Galaxy A51 128GB" has a 6.5inch display. Also, the "QMobile Energy X2 16GB" has a 5.0inch display. Comparing the screen size, the "Samsung Galaxy A51 128GB" has a considerably larger screen than the "QMobile Energy X2 16GB", with a difference of approximately 1.5inch. The "Samsung Galaxy A51 128GB" is superior to the "QMobile Energy X2 16GB" in terms of its larger buttons and the intensity of the user's experience when playing games and watching videos. In addition, the larger screen on the "Samsung Galaxy A51 128GB" has the benefit of being easier on the user's eyes. If you are looking for a smartphone that you are less likely to mistap, offers a more intense viewing and gaming experience, and decreases eyestrain, then we recommend the "Samsung Galaxy A51 128GB" over the "QMobile Energy X2 16GB".

ScoreDisplay size
Samsung Galaxy A51 128GB90/1006.5inch
QMobile Energy X2 16GB74/1005.0inch

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", which has a clearer display?

Pixel density affects picture quality, and the higher the pixel density, the better the picture quality, which means the user can gain more enjoyment from games and videos. In addition, higher picture quality decreases eyestrain, which means that the user will experience less eye fatigue after prolonged use.

The resolution on the "Samsung Galaxy A51 128GB" is 1080 x 2400, and pixel density is 404ppi. Also, the resolution on the "QMobile Energy X2 16GB" is 720 x 1280, and pixel density is 293ppi. Comparing the pixel count, the "Samsung Galaxy A51 128GB" has much higher pixel density than the "QMobile Energy X2 16GB", with a difference of roughly 111ppi. In terms of having better picture quality and exerting less strain on the eyes, the "Samsung Galaxy A51 128GB" is superior to the "QMobile Energy X2 16GB". If you are looking for a smartphone that is easy on the eyes, displaying texts and pictures clearly without any blurring, we recommend the "Samsung Galaxy A51 128GB" over the "QMobile Energy X2 16GB".

ScorePixel density
Samsung Galaxy A51 128GB84/100404ppi
QMobile Energy X2 16GB59/100293ppi

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", a summary of the differences in battery life

Battery performance greatly affects battery life, but greater battery capacity does not necessarily mean greater battery life, since battery efficiency should also be considered. Bigger screens and higher CPU performance will mean the batteries are depleted more quickly.

The "Samsung Galaxy A51 128GB" is 4000.0mAh, and the "QMobile Energy X2 16GB" is 5000.0mAh. Regarding battery capacity, there is a negligible difference in battery capacity between the "Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB". Since both have roughly equal battery life, you are better off comparing them based on other aspects of performance and functionality.

ScoreBattery capacity
Samsung Galaxy A51 128GB80/1004000.0mAh
QMobile Energy X2 16GB83/1005000.0mAh

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", which has better CPU?

CPU performance affects the ability to process programs, and the ability to process programs is determined by the product of the number of cores in the CPU and the CPU frequency. The higher this performance is, the more smoothly apps and games will run, and with low performance apps and games become heavy and stress is experienced.

The "Samsung Galaxy A51 128GB"'s CPU is a Exynos 9611, with performance measured at 2.3GHz+1.7GHz×8(8.0-cores). Also, the "QMobile Energy X2 16GB"'s CPU is a Mediatek MT6580M, with performance measured at 1.3GHz×4(4.0-cores). Comparing CPU performance, the "Samsung Galaxy A51 128GB" has considerably higher specs than the "QMobile Energy X2 16GB". In terms of being able to comfortably play games and run apps smoothly, the "Samsung Galaxy A51 128GB" is superior to the "QMobile Energy X2 16GB". If you're going for a high spec smart phone that runs smoothly and comfortably handles games, we recommend purchasing the "Samsung Galaxy A51 128GB" over the "QMobile Energy X2 16GB".

ScoreCPU specs
Samsung Galaxy A51 128GB90/1002.3GHz+1.7GHz×8(8.0-cores)
QMobile Energy X2 16GB36/1001.3GHz×4(4.0-cores)

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", what's the difference in memory capacity?

RAM affects multitasking ability and the stability of apps. The larger the amount of RAM is, the more stability there will be even in situations where multiple apps are running simultaneously, allowing for comfortable use. In addition, animation will be more smooth, and apps will be less likely to freeze or crash. Also, without sufficient RAM, there are games you won't be able to run, so it is necessary to be careful.

The weight of the "Samsung Galaxy A51 128GB" is 6.0GB and the weight of the "QMobile Energy X2 16GB" is 2.0GB. Comparing the devices in terms of RAM, the "Samsung Galaxy A51 128GB" has a significantly larger amount of RAM than the "QMobile Energy X2 16GB", with a difference of about 4GB. In terms of the unlikeliness of crashing and the ease of multitasking, 3D games and VR, the "Samsung Galaxy A51 128GB" is superior to the "QMobile Energy X2 16GB". If you're looking for a smart phone that can run multiple apps simultaneously with stability and also allows you to comfortably enjoy 3D games and VR, then we recommend purchasing the "Samsung Galaxy A51 128GB" over the "QMobile Energy X2 16GB".

ScoreRAM size
Samsung Galaxy A51 128GB90/1006.0GB
QMobile Energy X2 16GB50/1002.0GB

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", which has more data storage?

Storage capacity affects the amount of data that is capable of being stored. The larger the storage capacity, the more pictures you can take and the more applications you can install. In addition, if your smartphone accepts SD cards, then you can increase its storage capacity. However, there are performance related drawbacks, including a slower data transfer rate than the primary memory, and you cannot transfer all your data on the card, so be warned.

The data storage capacity of the "Samsung Galaxy A51 128GB" is 128.0GB. Also the "QMobile Energy X2 16GB" is 16.0GB. Regarding storage capacity, the "Samsung Galaxy A51 128GB" has a much larger data storage capacity compared to the "QMobile Energy X2 16GB", with a roughly 112GB difference. In terms of the number of pictures you can save and the applications that you can install, the "Samsung Galaxy A51 128GB" is superior to the "QMobile Energy X2 16GB". If you are looking for a smartphone that can save more data, we recommend the "Samsung Galaxy A51 128GB" over the "QMobile Energy X2 16GB".

ScoreStorage size
Samsung Galaxy A51 128GB90/100128.0GB
QMobile Energy X2 16GB50/10016.0GB

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB" rear camera performance comparison. Which has a higher resolution?

One factor that determines the performance of the exterior camera located on the back of the device (the rear/back camera) is the pixel count. The larger the pixel count, the higher the resolution of the pictures you can take, and the cleaner the pictures will look when printed.

"Samsung Galaxy A51 128GB" has a 48.0MP main camera. Also, "QMobile Energy X2 16GB" has a 8.0MP main camera. Comparing rear camera performance, the "Samsung Galaxy A51 128GB" has a much higher pixel count compared to the "QMobile Energy X2 16GB", with a roughly 40MP difference. In terms of taking or shooting high resolution pictures or videos that will look clean when printed, the "Samsung Galaxy A51 128GB" is superior to the "QMobile Energy X2 16GB". If you are looking for a smartphone that is suited for shooting videos and taking pictures, we recommend the "Samsung Galaxy A51 128GB" over the "QMobile Energy X2 16GB".

ScoreRear-camera resolution
Samsung Galaxy A51 128GB97/10048.0MP
QMobile Energy X2 16GB50/1008.0MP

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", whose front camera has a better picture quality?

One factor that determines the performance of the exterior camera located on the front of the device (the in/front camera) is the pixel count. The larger the pixel count, the higher the resolution of the pictures you can take, and the cleaner the pictures will look when printed.

"Samsung Galaxy A51 128GB" has an 32.0MP front camera and "QMobile Energy X2 16GB" has an 5.0MP front camera. Comparing rear camera performance, the front camera of the "Samsung Galaxy A51 128GB" has a much higher pixel count compared to the "QMobile Energy X2 16GB", with a roughly 27MP difference. As a result, the "Samsung Galaxy A51 128GB" is more suited than the "QMobile Energy X2 16GB" for shooting videos and taking pictures. If you are looking for a smartphone that is suited for shooting high resolution selfies which will look clean when printed, we recommend the "Samsung Galaxy A51 128GB" over the "QMobile Energy X2 16GB".

ScoreFront-camera resolution
Samsung Galaxy A51 128GB97/10032.0MP
QMobile Energy X2 16GB50/1005.0MP

"Samsung Galaxy A51 128GB" and "QMobile Energy X2 16GB", performance comparison by specification sheet

Samsung Galaxy A51 128GBQMobile Energy X2 16GB
ImageSamsung Galaxy A51 128GBQMobile Energy X2 16GB
MakerSamsungQMobile
Release date2019-12-262017-02
ColorPrism/Crush Black/White/Blue/PinkGold/Silver/Gray
OSAndroidAndroid
Dimensions (width x height x thickness)73.6mm x 158.5mm x 7.9mm73.0mm x 143.0mm x 9.9mm
Weight172.0g184.0g
Display size6.5inch5.0inch
Display typeSuper AMOLEDIPS LCD
Screen resolution (width x height)1080 x 2400720 x 1280
Pixel density404ppi293ppi
Battery capacity4000.0mAh5000.0mAh
ChipsetExynos 9611Mediatek MT6580M
CPU specs2.3GHz+1.7GHz×8(8.0-cores)1.3GHz×4(4.0-cores)
RAM size6.0GB2.0GB
Storage size128.0GB16.0GB
Rear-camera resolution48.0MP8.0MP
Front-camera resolution32.0MP5.0MP

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