Should you buy ROG Phone II ZS660KL or Zenfone 5z ZS620KL? Compare the differences in functions and specifications/performances thoroughly

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 ROG Phone II ZS660KL is 3.1 inches (77.6 mm) wide, 6.7 inches (171 mm) tall, and 0.4 inches (9.5 mm) thick. The Zenfone 5z ZS620KL is 3.0 inches (75.7 mm) tall, 6.0 inches (153 mm) wide, and 0.3 inches (7.9 mm) thick.

Comparing the width and thickness of the main unit, the Zenfone 5z ZS620KL is smaller and more compact compared to the ROG Phone II ZS660KL. Therefore, it is easier to grip and hold the Zenfone 5z ZS620KL than the ROG Phone II ZS660KL. For this reason, the Zenfone 5z ZS620KL is recommended.

Comparing the width and height of the main unit, the Zenfone 5z ZS620KL is smaller and more compact than the ROG Phone II ZS660KL. As a result, the Zenfone 5z ZS620KL is easier to operate with one hand and it is more portable without getting in your way than the ROG Phone II ZS660KL. Therefore, the Zenfone 5z ZS620KL is recommended.

Comparing the overall size of the main unit, the Zenfone 5z ZS620KL is smaller than the ROG Phone II ZS660KL. As a result, it is easier to use the Zenfone 5z ZS620KL with one hand compared to the ROG Phone II ZS660KL, and its size makes it more comfortable to carry around. For this reason, the Zenfone 5z ZS620KL is recommended.

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 ROG Phone II ZS660KL weighs 240 oz (240 g). The Zenfone 5z ZS620KL clocks in at 165 oz (165 g). If you compare the weight of the two, the Zenfone 5z ZS620KL is a considerably lighter smartphone than the ROG Phone II ZS660KL, with a difference of about 165 oz (75 g). Because of this, the Zenfone 5z ZS620KL puts less of a burden on the fingers and wrists than the ROG Phone II ZS660KL. 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 Zenfone 5z ZS620KL rather than the ROG Phone II ZS660KL.

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 ROG Phone II ZS660KL is 6.59 inch, and 6.2 inch on the Zenfone 5z ZS620KL. The screens of the ROG Phone II ZS660KL and Zenfone 5z ZS620KL are roughly the same size, and so the ease of pressing app buttons are the same on both devices. Because of this, it is better to compare them based on other aspects of performance and function.

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 ROG Phone II ZS660KL has a 1080 x 2340 resolution and a pixel density of 391 ppi. The Zenfone 5z ZS620KL, on the other hand, has a screen resolution of 1080 x 2246 and a pixel density of 401 ppi. There is not much of a difference in the pixel resolutions of the ROG Phone II ZS660KL and Zenfone 5z ZS620KL, 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.

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 ROG Phone II ZS660KL has a battery capacity of 6000 mAh, while the Zenfone 5z ZS620KL has a 3300 mAh battery. With regards to battery performance, the ROG Phone II ZS660KL has a substantially larger battery capacity than the Zenfone 5z ZS620KL, with a difference of 2700 mAh. The ROG Phone II ZS660KL can be used without charging for a longer time than the Zenfone 5z ZS620KL, so it can be used when out and about. If you want a smartphone with a longer-lasting battery, we recommend that you buy the ROG Phone II ZS660KL rather than the Zenfone 5z ZS620KL.

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 ROG Phone II ZS660KL is equipped with a Qualcomm SM8150 Snapdragon 855+ processor, and its performance speed is 2.96GHz+2.42GHz+1.78GHz×8(OctaCore). The Zenfone 5z ZS620KL uses an Qualcomm SDM845 Snapdragon 845 CPU that performs at a speed of 2.7GHz+1.7GHz×8(OctaCore). There is also no real discrepancy between the CPU performances of the ROG Phone II ZS660KL and Zenfone 5z ZS620KL. 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.

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 ROG Phone II ZS660KL has 12GB of memory. The Zenfone 5z ZS620KL, on the other hand, has 8GB. Comparing the memory performance, the ROG Phone II ZS660KL has a larger memory capacity than the Zenfone 5z ZS620KL, with a difference of approximately 4GB. For this reason, multitasking is smoother on the ROG Phone II ZS660KL than the Zenfone 5z ZS620KL, and applications are less likely to crash. Also, it is more enjoyable to play 3D games and VR on the ROG Phone II ZS660KL. For this reason, the ROG Phone II ZS660KL is recommended.

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 ROG Phone II ZS660KL has 1024GB of storage, while the Zenfone 5z ZS620KL has 256GB. Comparing the ROM and storage capacity, the ROG Phone II ZS660KL has a larger storage capacity compared to the Zenfone 5z ZS620KL, with a difference of approximately 768GB. Consequently, the ROG Phone II ZS660KL can take more photos and videos than the Zenfone 5z ZS620KL and it is possible to install more applications on it. For this reason, the ROG Phone II ZS660KL is recommended.

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 ROG Phone II ZS660KL has 48 MP. The Zenfone 5z ZS620KL has 12 MP. The rear-facing camera of the ROG Phone II ZS660KL also has a higher pixel count than the Zenfone 5z ZS620KL, with a difference of about 36 MP. The ROG Phone II ZS660KL is more capable than the Zenfone 5z ZS620KL 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 ROG Phone II ZS660KL rather than the Zenfone 5z ZS620KL.

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 ROG Phone II ZS660KL has a resolution of 24 MP. The Zenfone 5z ZS620KL's has 8 MP. The front-facing camera of the ROG Phone II ZS660KL has a significantly higher number of pixels than the Zenfone 5z ZS620KL, with a difference of about 16 MP. Therefore, the ROG Phone II ZS660KL is more suitable for taking photos and videos than the Zenfone 5z ZS620KL. If you want to take and print high-quality selfies, we recommend buying the ROG Phone II ZS660KL rather than the Zenfone 5z ZS620KL.