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Lenovo K13 (2021) 32GB vs Lenovo A3900 (2015) 4GB: Full Comparison!

Created date: 2021-08-29 16:49:15

Lenovo K13 (2021) 32GBLenovo A3900 (2015) 4GB
Lenovo K13 (2021) 32GBLenovo A3900 (2015) 4GB

Are you having trouble comparing the differences in features and performance of the "Lenovo K13 (2021) 32GB" and "Lenovo A3900 (2015) 4GB", 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.

Lenovo K13 (2021) 32GBLenovo A3900 (2015) 4GB
Lenovo K13 (2021) 32GB

Lenovo A3900 (2015) 4GB

General rating:
Portabilityrating-image2.9
75.9mm x 165.1mm x 9.2mm
rating-image3.3
71.8mm x 142.8mm x 9.0mm
Weightrating-image2.5
200.0g
rating-image3.4
157.0g
Size of screenrating-image4.5
6.52inch
rating-image3.7
5.0inch
Screen clarityrating-image2.7
269ppi
rating-image1.3
195ppi
Battery durationrating-image
rating-image2.7
2300.0mAh
Processing capabilityrating-image2.8
1.6GHz+1.2GHz×8(8.0-cores)
rating-image1.7
1.2GHz×8(8.0-cores)
Memory capacityrating-image2.5
2.0GB
rating-image1
512.0MB
Storage capacityrating-image2.8
32.0GB
rating-image1
4.0GB
Rear camera functionrating-image3.1
13.0MP
rating-image1.4
5.0MP
Front camera functionrating-image2.5
5.0MP
rating-image1
2.0MP

Compare Performance and Usability

Size comparison of "Lenovo K13 (2021) 32GB" and "Lenovo A3900 (2015) 4GB". 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 "Lenovo K13 (2021) 32GB" is 75.9mm wide, 165.1mm tall, and 9.2mm thick. The "Lenovo A3900 (2015) 4GB" is 71.8mm tall, 142.8mm wide, and 9.0mm thick.

Comparing the width and thickness of the main unit, the "Lenovo A3900 (2015) 4GB" is smaller and more compact compared to the "Lenovo K13 (2021) 32GB". Therefore, it is easier to grip and hold the "Lenovo A3900 (2015) 4GB" than the "Lenovo K13 (2021) 32GB". For this reason, the "Lenovo A3900 (2015) 4GB" is recommended.

Comparing the width and height of the devices, the "Lenovo A3900 (2015) 4GB" is more compact than the "Lenovo K13 (2021) 32GB". The "Lenovo A3900 (2015) 4GB" is easier to carry around than the "Lenovo K13 (2021) 32GB" and easier to use with one hand. For a smartphone that is comfortable and easy to operate with one hand, and can fit neatly in your pocket or bag, we recommend that you buy the "Lenovo A3900 (2015) 4GB" rather than the "Lenovo K13 (2021) 32GB".

Comparing the overall size of the main unit, the "Lenovo A3900 (2015) 4GB" is smaller than the "Lenovo K13 (2021) 32GB". As a result, it is easier to use the "Lenovo A3900 (2015) 4GB" with one hand compared to the "Lenovo K13 (2021) 32GB", and its size makes it more comfortable to carry around. For this reason, the "Lenovo A3900 (2015) 4GB" is recommended.

ScoreDimensions (width x height x thickness)
Lenovo K13 (2021) 32GB58/10075.9mm x 165.1mm x 9.2mm
Lenovo A3900 (2015) 4GB66/10071.8mm x 142.8mm x 9.0mm

Which one is easier to hold, "Lenovo K13 (2021) 32GB" or "Lenovo A3900 (2015) 4GB"? 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 "Lenovo K13 (2021) 32GB" weighs 200.0g. The "Lenovo A3900 (2015) 4GB" clocks in at 157.0g. If you compare the weight of the two, the "Lenovo A3900 (2015) 4GB" is a considerably lighter smartphone than the "Lenovo K13 (2021) 32GB", with a difference of about 43g. Because of this, the "Lenovo A3900 (2015) 4GB" puts less of a burden on the fingers and wrists than the "Lenovo K13 (2021) 32GB". If you want a smartphone that won't tire your hands out even when using it for a long time, we recommend that you buy the "Lenovo A3900 (2015) 4GB" rather than the "Lenovo K13 (2021) 32GB".

ScoreWeight
Lenovo K13 (2021) 32GB50/100200.0g
Lenovo A3900 (2015) 4GB67/100157.0g

Which is better in terms of display, "Lenovo K13 (2021) 32GB" or "Lenovo A3900 (2015) 4GB"?

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 "Lenovo K13 (2021) 32GB" is 6.52inch, and 5.0inch on the "Lenovo A3900 (2015) 4GB". Comparing the sizes of the screens and displays, the "Lenovo K13 (2021) 32GB" is considerably larger than the "Lenovo A3900 (2015) 4GB", with a difference of about 1.51inch. Compared to the "Lenovo A3900 (2015) 4GB", the "Lenovo K13 (2021) 32GB" makes buttons in apps easier to press, and the visuals look more impressive in videos and games. The larger screen of the "Lenovo K13 (2021) 32GB" also has the advantage of being less tiring on the eyes. If you want to avoid tapping the wrong place, enjoy videos and games on a large screen, and not get tired eyes while using it, we recommend that you buy the "Lenovo K13 (2021) 32GB" rather than the "Lenovo A3900 (2015) 4GB".

ScoreDisplay size
Lenovo K13 (2021) 32GB90/1006.52inch
Lenovo A3900 (2015) 4GB74/1005.0inch

Which one has a better display, "Lenovo K13 (2021) 32GB" or "Lenovo A3900 (2015) 4GB"?

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 "Lenovo K13 (2021) 32GB" has a 720 x 1600 resolution and a pixel density of 269ppi. The "Lenovo A3900 (2015) 4GB", on the other hand, has a screen resolution of 480 x 854 and a pixel density of 195ppi. Comparing the screen definition, the "Lenovo K13 (2021) 32GB" has a much higher pixel density than the "Lenovo A3900 (2015) 4GB", with a difference of about 74ppi. The screen on the "Lenovo K13 (2021) 32GB" is clear and crisp, and puts less strain on the eyes than that of the "Lenovo A3900 (2015) 4GB". If you want to choose a smartphone that is gentle on your eyes with a display that shows text and images clearly, we recommend that you buy the "Lenovo K13 (2021) 32GB" rather than the "Lenovo A3900 (2015) 4GB".

ScorePixel density
Lenovo K13 (2021) 32GB54/100269ppi
Lenovo A3900 (2015) 4GB25/100195ppi

How is the battery duration of "Lenovo K13 (2021) 32GB" different from that of "Lenovo A3900 (2015) 4GB" ? 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.

ScoreBattery capacity
Lenovo K13 (2021) 32GB - /100
Lenovo A3900 (2015) 4GB54/1002300.0mAh

Which is better in terms of CPU function, "Lenovo K13 (2021) 32GB" or "Lenovo A3900 (2015) 4GB"?

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 "Lenovo K13 (2021) 32GB" is equipped with a Unisoc SC9863A processor, and its performance speed is 1.6GHz+1.2GHz×8(8.0-cores). The "Lenovo A3900 (2015) 4GB" uses an Mediatek MT6752 CPU that performs at a speed of 1.2GHz×8(8.0-cores). Comparing CPU performance, the "Lenovo K13 (2021) 32GB" has significantly higher specs than the "Lenovo A3900 (2015) 4GB". The "Lenovo K13 (2021) 32GB" proves to be more advanced than the "Lenovo A3900 (2015) 4GB" in the way that apps run quickly and games play smoothly. If you're looking for a high-spec smartphone that runs quickly and plays games smoothly, we recommend that you buy the "Lenovo K13 (2021) 32GB" rather than the "Lenovo A3900 (2015) 4GB".

ScoreCPU specs
Lenovo K13 (2021) 32GB55/1001.6GHz+1.2GHz×8(8.0-cores)
Lenovo A3900 (2015) 4GB33/1001.2GHz×8(8.0-cores)

How is "Lenovo K13 (2021) 32GB" different from "Lenovo A3900 (2015) 4GB" 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 "Lenovo K13 (2021) 32GB" has 2.0GB of memory. The "Lenovo A3900 (2015) 4GB", on the other hand, has 512.0MB. As for memory performance, the "Lenovo K13 (2021) 32GB" has a larger memory capacity than the "Lenovo A3900 (2015) 4GB", with a difference of about 510GB. The "Lenovo K13 (2021) 32GB" has better multitasking, less crashing, and runs 3D games and VR video better than the "Lenovo A3900 (2015) 4GB". 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 "Lenovo K13 (2021) 32GB" rather than the "Lenovo A3900 (2015) 4GB".

ScoreRAM size
Lenovo K13 (2021) 32GB50/1002.0GB
Lenovo A3900 (2015) 4GB5/100512.0MB

Which has a better storage capacity, "Lenovo K13 (2021) 32GB" or "Lenovo A3900 (2015) 4GB"?

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 "Lenovo K13 (2021) 32GB" has 32.0GB of storage, while the "Lenovo A3900 (2015) 4GB" has 4.0GB. In terms of ROM and data storage, the "Lenovo K13 (2021) 32GB" has a much larger capacity than the "Lenovo A3900 (2015) 4GB", with a difference of about 28GB. The "Lenovo K13 (2021) 32GB" can save more photos and keep more apps installed than the "Lenovo A3900 (2015) 4GB". If you're searching for a smartphone that can store more data, we recommended that you buy the "Lenovo K13 (2021) 32GB" rather than the "Lenovo A3900 (2015) 4GB".

ScoreStorage size
Lenovo K13 (2021) 32GB55/10032.0GB
Lenovo A3900 (2015) 4GB11/1004.0GB

Compare the rear cameras of "Lenovo K13 (2021) 32GB" and "Lenovo A3900 (2015) 4GB". 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 "Lenovo K13 (2021) 32GB" has 13.0MP. The "Lenovo A3900 (2015) 4GB" has 5.0MP. The rear-facing camera of the "Lenovo K13 (2021) 32GB" also has a higher pixel count than the "Lenovo A3900 (2015) 4GB", with a difference of about 8MP. The "Lenovo K13 (2021) 32GB" is more capable than the "Lenovo A3900 (2015) 4GB" of taking high-definition photos and videos, and produces better results when printing out the photos you have taken. If you want a smartphone that is designed for video and photography, we recommend buying the "Lenovo K13 (2021) 32GB" rather than the "Lenovo A3900 (2015) 4GB".

ScoreRear-camera resolution
Lenovo K13 (2021) 32GB61/10013.0MP
Lenovo A3900 (2015) 4GB27/1005.0MP

Which has a front camera with better picture quality, "Lenovo K13 (2021) 32GB" or "Lenovo A3900 (2015) 4GB"?

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 "Lenovo K13 (2021) 32GB" has a resolution of 5.0MP. The "Lenovo A3900 (2015) 4GB"'s has 2.0MP. The front-facing camera of the "Lenovo K13 (2021) 32GB" has a significantly higher number of pixels than the "Lenovo A3900 (2015) 4GB", with a difference of about 3MP. Therefore, the "Lenovo K13 (2021) 32GB" is more suitable for taking photos and videos than the "Lenovo A3900 (2015) 4GB". If you want to take and print high-quality selfies, we recommend buying the "Lenovo K13 (2021) 32GB" rather than the "Lenovo A3900 (2015) 4GB".

ScoreFront-camera resolution
Lenovo K13 (2021) 32GB50/1005.0MP
Lenovo A3900 (2015) 4GB15/1002.0MP

Compare Performance Specs

Lenovo K13 (2021) 32GBLenovo A3900 (2015) 4GB
ImageLenovo K13 (2021) 32GBLenovo A3900 (2015) 4GB
MakerLenovoLenovo
Release date2021-08-302015-08
ColorTahiti Blue/Coral RedBlack/Pearl White/Silver
OSAndroidAndroid
Dimensions (width x height x thickness)75.9mm x 165.1mm x 9.2mm71.8mm x 142.8mm x 9.0mm
Weight200.0g157.0g
Display size6.52inch5.0inch
Display typeIPS LCDIPS LCD
Screen resolution (width x height)720 x 1600480 x 854
Pixel density269ppi195ppi
ChipsetUnisoc SC9863AMediatek MT6752
CPU specs1.6GHz+1.2GHz×8(8.0-cores)1.2GHz×8(8.0-cores)
RAM size2.0GB512.0MB
Storage size32.0GB4.0GB
Rear-camera resolution13.0MP5.0MP
Front-camera resolution5.0MP2.0MP

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