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Realme U1 (2018) 64GB vs Zenfone 4 Pro ZS551KL 128GB

Created date: 2018-12-13 07:00:34, Updated date: 2020-04-16 15:38:33

Realme U1 (2018) 64GBZenfone 4 Pro ZS551KL 128GB
Realme U1 (2018) 64GBZenfone 4 Pro ZS551KL 128GB

Are you having trouble comparing the differences in features and performance of the "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB", or unsure about their differences in ease-of-use, and wondering which to buy? We did a deep-dive comparison of the features, specs, and capabilities of these two smartphone, and provided our rating of which one was a better buy.

Realme U1 (2018) 64GBZenfone 4 Pro ZS551KL 128GB
Realme U1 (2018) 64GB

Zenfone 4 Pro ZS551KL 128GB

General rating:
Portabilityrating-image3.2
74.0mm x 157.0mm x 8.0mm
rating-image3.1
75.6mm x 156.9mm x 7.6mm
Weightrating-image3.2
168.0g
rating-image3.0
175.0g
Size of screenrating-image4.5
6.3inch
rating-image4.1
5.5inch
Screen clarityrating-image4.3
409ppi
rating-image4.3
400ppi
Battery durationrating-image3.6
3500.0mAh
rating-image3.7
3600.0mAh
Processing capabilityrating-image4.3
2.1GHz+2.0GHz×8(8.0-cores)
rating-image4.6
2.45GHz+1.9GHz×8(8.0-cores)
Memory capacityrating-image3.5
4.0GB
rating-image4.5
6.0GB
Storage capacityrating-image3.4
64.0GB
rating-image4.5
128.0GB
Rear camera functionrating-image3.1
13.0MP
rating-image3.4
16.0MP
Front camera functionrating-image4.4
25.0MP
rating-image2.9
8.0MP

Compare Performance and Usability

Size comparison of "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB". Which one would you choose?

Your device's size has a huge influence on how easy it is to hold or to operate with one hand. The smaller your device's width, the easier it will be to hold, but you'll also need to take device thickness into account. And when the length and width are both smaller, you'll find that it's much easier for you to operate it one-handed, since your fingers will find it much easier to reach where you want them to. On the other hand, longer lengths and wider widths might lead to devices that are hard to carry in your pocket, bulky even when you keep them in your bag, and all around less portable.

The "Realme U1 (2018) 64GB" is 74.0mm wide, 157.0mm tall, and 8.0mm thick. The "Zenfone 4 Pro ZS551KL 128GB" is 75.6mm tall, 156.9mm wide, and 7.6mm thick.

There is no real difference between the "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB" when comparing their width, thickness, and slimness; they are both around the same in terms of one-handed ease of use and carry. Because of this, it is better to compare them based on other aspects of performance and function.

There is no real difference in length or width between the "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB", so they are both about the same in terms of usability, ease of carry, and bulkiness. Because of this, it is better to compare them based on other aspects of performance and function.

When comparing their sizes as a whole, there is no real difference between the "Realme U1 (2018) 64GB"and "Zenfone 4 Pro ZS551KL 128GB". Thus they are roughly the same in terms of ease of carry and one-handed use. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreDimensions (width x height x thickness)
Realme U1 (2018) 64GB64/10074.0mm x 157.0mm x 8.0mm
Zenfone 4 Pro ZS551KL 128GB62/10075.6mm x 156.9mm x 7.6mm

Which one is easier to hold, "Realme U1 (2018) 64GB" or "Zenfone 4 Pro ZS551KL 128GB"? Compare weight

The device weight will effect how quickly you tire from holding it, and how much stress is put on your wrist. The lighter it is, the longer you can hold it without feeling tired. Also, less stress on your wrist will make using it easier and more pleasant. Unless the weight is right for you, it might put too much strain on your body and make using it more stressful.

The "Realme U1 (2018) 64GB" weighs 168.0g. The "Zenfone 4 Pro ZS551KL 128GB" clocks in at 175.0g. The "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB" have around the same weight, so prolonged use will tire out fingers nd wrists to around the same degree. Because of this, it is better to compare them based on other aspects of performance and function.

ScoreWeight
Realme U1 (2018) 64GB63/100168.0g
Zenfone 4 Pro ZS551KL 128GB60/100175.0g

Which is better in terms of display, "Realme U1 (2018) 64GB" or "Zenfone 4 Pro ZS551KL 128GB"?

Screen size influences how well you can control your device, as well as how clear the display is. With a large screen, the text and buttons in apps will display large enough so you'll be less likely to accidentally tap the button next to the one you were aiming for. Plus, you'll be able to enjoy more high-impact visuals for games and movies.

The screen size on the "Realme U1 (2018) 64GB" is 6.3inch, and 5.5inch on the "Zenfone 4 Pro ZS551KL 128GB". Comparing the size of the display and screen, the screen size of the "Realme U1 (2018) 64GB" is larger than that of the "Zenfone 4 Pro ZS551KL 128GB", with a difference of approximately 0.7inch. As a result, there will be unintended touches on the "Realme U1 (2018) 64GB" compared to the "Zenfone 4 Pro ZS551KL 128GB" and it is possible to enjoy games and videos on a large screen. For this reason, the "Realme U1 (2018) 64GB" is recommended.

ScoreDisplay size
Realme U1 (2018) 64GB90/1006.3inch
Zenfone 4 Pro ZS551KL 128GB82/1005.5inch

Which one has a better display, "Realme U1 (2018) 64GB" or "Zenfone 4 Pro ZS551KL 128GB"?

Pixel density influences how nice your device's screen looks, with high pixel densities making screens look more beautiful, and letting you get more out of your games and movies. Plus, the nicer you screen looks, the less strain you'll be putting on your eyes, so you'll tend to be able to use your device for longer before your eyes get tired.

The screen on the "Realme U1 (2018) 64GB" has a 1080 x 2340 resolution and a pixel density of 409ppi. The "Zenfone 4 Pro ZS551KL 128GB", on the other hand, has a screen resolution of 1080 x 1920 and a pixel density of 400ppi. There is not much of a difference in the pixel resolutions of the "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB", so they are about the same in terms of clarity of image and gentleness on the eyes. For this reason it is better to compare them based on other aspects of performance and function.

ScorePixel density
Realme U1 (2018) 64GB85/100409ppi
Zenfone 4 Pro ZS551KL 128GB85/100400ppi

How is the battery duration of "Realme U1 (2018) 64GB" different from that of "Zenfone 4 Pro ZS551KL 128GB" ? See the differences

Battery performance has a big effect on the battery life of your device. However, a high battery capacity doesn't necessarily mean a long battery life. Rather, the rate of power consumption needs to be taken into consideration as well. The larger the screen and the higher the CPU performance, the higher the rate of power consumption on your battery.

The "Realme U1 (2018) 64GB" has a battery capacity of 3500.0mAh, while the "Zenfone 4 Pro ZS551KL 128GB" has a 3600.0mAh battery. The batteries of both the "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB" perform to the same extent. There is also no difference in the battery capacities of the "Realme U1 (2018) 64GB" and the "Zenfone 4 Pro ZS551KL 128GB". Since their battery life is practically identical, it would be better to compare them based on other aspects of performance and function.

ScoreBattery capacity
Realme U1 (2018) 64GB72/1003500.0mAh
Zenfone 4 Pro ZS551KL 128GB74/1003600.0mAh

Which is better in terms of CPU function, "Realme U1 (2018) 64GB" or "Zenfone 4 Pro ZS551KL 128GB"?

Your CPU's speed will influence the processing power of the applications you run, and together with the number of cores in the CPU, as well as its clock frequency, will determine the processing power available for apps. The higher these performance factors, the smoother your games and apps will run. Conversely, if these factors are too low, your apps and games will be sluggish and struggle to run.

The "Realme U1 (2018) 64GB" is equipped with a Mediatek MT6771 Helio P70 processor, and its performance speed is 2.1GHz+2.0GHz×8(8.0-cores). The "Zenfone 4 Pro ZS551KL 128GB" uses an Qualcomm MSM8998 Snapdragon 835 CPU that performs at a speed of 2.45GHz+1.9GHz×8(8.0-cores). There is also no real discrepancy between the CPU performances of the "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB". Because of this, both phones will feel practically identical in terms of smoothness when running apps and ease of game play. This is why it is better to compare them based on other aspects of performance and function.

ScoreCPU specs
Realme U1 (2018) 64GB86/1002.1GHz+2.0GHz×8(8.0-cores)
Zenfone 4 Pro ZS551KL 128GB91/1002.45GHz+1.9GHz×8(8.0-cores)

How is "Realme U1 (2018) 64GB" different from "Zenfone 4 Pro ZS551KL 128GB" in terms of memory capacity?

Your device's multimedia performance and app stability are both influenced by the amount of memory it has available. The more memory, the more apps you can use simultaneously, while keeping everything stable and smooth. Plus, there'll be less chance of animations lagging or apps crashing. You also need to keep in mind that some games won't run at all if there's not enough memory available.

The "Realme U1 (2018) 64GB" has 4.0GB of memory. The "Zenfone 4 Pro ZS551KL 128GB", on the other hand, has 6.0GB. As for memory performance, the "Zenfone 4 Pro ZS551KL 128GB" has a larger memory capacity than the "Realme U1 (2018) 64GB", with a difference of about 2GB. The "Zenfone 4 Pro ZS551KL 128GB" has better multitasking, less crashing, and runs 3D games and VR video better than the "Realme U1 (2018) 64GB". If you're looking for a smartphone that will remain stable even when you are using multiple apps at the same time, and which will allow you to play 3D games and VR video comfortably, we recommend that you buy the "Zenfone 4 Pro ZS551KL 128GB" rather than the "Realme U1 (2018) 64GB".

ScoreRAM size
Realme U1 (2018) 64GB70/1004.0GB
Zenfone 4 Pro ZS551KL 128GB90/1006.0GB

Which has a better storage capacity, "Realme U1 (2018) 64GB" or "Zenfone 4 Pro ZS551KL 128GB"?

Storage capacity determines the amount of data you'll be able to save on your device. The more storage you have, the more photos you can take and the more apps you can install. Plus, if your smartphone is compatible with SD cards, then you can increase the amount of available storage. However, SD cards have a slower writespeed, making them less desirable in terms of performance, and users should be aware that it won't be possible to transfer all kinds of data to the card.

The "Realme U1 (2018) 64GB" has 64.0GB of storage, while the "Zenfone 4 Pro ZS551KL 128GB" has 128.0GB. In terms of ROM and data storage, the "Zenfone 4 Pro ZS551KL 128GB" has a much larger capacity than the "Realme U1 (2018) 64GB", with a difference of about 64GB. The "Zenfone 4 Pro ZS551KL 128GB" can save more photos and keep more apps installed than the "Realme U1 (2018) 64GB". If you're searching for a smartphone that can store more data, we recommended that you buy the "Zenfone 4 Pro ZS551KL 128GB" rather than the "Realme U1 (2018) 64GB".

ScoreStorage size
Realme U1 (2018) 64GB67/10064.0GB
Zenfone 4 Pro ZS551KL 128GB90/100128.0GB

Compare the rear cameras of "Realme U1 (2018) 64GB" and "Zenfone 4 Pro ZS551KL 128GB". Which one has better picture quality?

One factor in how well your rear camera (the camera on the back of your device) performs is its megapixel count. With a higher megapixel count, you'll be able to take photos with sharper detail, photos that stay clear and sharp even when printed.

The main camera on the "Realme U1 (2018) 64GB" has 13.0MP. The "Zenfone 4 Pro ZS551KL 128GB" has 16.0MP. Comparing the rear camera performance, the number of pixels of the "Zenfone 4 Pro ZS551KL 128GB" is higher than the "Realme U1 (2018) 64GB", with a difference of approximately 3MP. As a result, the "Zenfone 4 Pro ZS551KL 128GB" can take higher quality scenery photos and make clear prints compared to the "Realme U1 (2018) 64GB". Therefore, the "Zenfone 4 Pro ZS551KL 128GB" is recommended.

ScoreRear-camera resolution
Realme U1 (2018) 64GB61/10013.0MP
Zenfone 4 Pro ZS551KL 128GB68/10016.0MP

Which has a front camera with better picture quality, "Realme U1 (2018) 64GB" or "Zenfone 4 Pro ZS551KL 128GB"?

One indication of how well your forward facing camera (the camera on the same side as your device's screen) performs is how many megapixels it has. More megapixels means you'll be able to take photos with sharper detail, that still look amazing printed out.

The forward-facing camera on the "Realme U1 (2018) 64GB" has a resolution of 25.0MP. The "Zenfone 4 Pro ZS551KL 128GB"'s has 8.0MP. The front-facing camera of the "Realme U1 (2018) 64GB" has a significantly higher number of pixels than the "Zenfone 4 Pro ZS551KL 128GB", with a difference of about 17MP. Therefore, the "Realme U1 (2018) 64GB" is more suitable for taking photos and videos than the "Zenfone 4 Pro ZS551KL 128GB". If you want to take and print high-quality selfies, we recommend buying the "Realme U1 (2018) 64GB" rather than the "Zenfone 4 Pro ZS551KL 128GB".

ScoreFront-camera resolution
Realme U1 (2018) 64GB88/10025.0MP
Zenfone 4 Pro ZS551KL 128GB58/1008.0MP

Compare Performance Specs

Realme U1 (2018) 64GBZenfone 4 Pro ZS551KL 128GB
ImageRealme U1 (2018) 64GBZenfone 4 Pro ZS551KL 128GB
MakerRealmeAsus
Release date2018-122017-10
ColorAmbitious Black/Brave Blue/Fiery GoldMoonlight white/Pure Black
OSAndroidAndroid
Dimensions (width x height x thickness)74.0mm x 157.0mm x 8.0mm75.6mm x 156.9mm x 7.6mm
Weight168.0g175.0g
Display size6.3inch5.5inch
Display typeLTPS IPS LCDAMOLED
Screen resolution (width x height)1080 x 23401080 x 1920
Pixel density409ppi400ppi
Battery capacity3500.0mAh3600.0mAh
ChipsetMediatek MT6771 Helio P70Qualcomm MSM8998 Snapdragon 835
CPU specs2.1GHz+2.0GHz×8(8.0-cores)2.45GHz+1.9GHz×8(8.0-cores)
RAM size4.0GB6.0GB
Storage size64.0GB128.0GB
Rear-camera resolution13.0MP16.0MP
Front-camera resolution25.0MP8.0MP

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