Z1 Review

Created date: 09/30/2018, 13:31:05, Updated date: 04/16/2020, 09:09:46

Detailed review of Z1's features

Here's our thorough explanation of whether you should buy the Z1. We thoroughly evaluated how easy it is to hold, its operability, processing performance, multi-tasking performance, and more. We also reviewed how much we recommend it when compared to other models.

Summary of Z1 performance and functions

The size and weight of the Z1

The body of the Z1 is 2.5 inches (63.2 mm) wide, 4.7 inches (120.4 mm) long, and 0.4 inches (9.7 mm) thick. Also, the screen size is 4 inch, and it weighs 112 oz (112 g). The size is slightly smaller than normal smartphones, making it relatively easy to use with one hand. The drawback is that the screen is small and a bit hard to see, but overall the device has achieved a good balance. It's good for people who want to comfortably use their smartphone with one hand. It's a fairly light smartphone so even with extended use it won't take a toll on your hands.

Z1
Galaxy Note 4
Galaxy Note 4 Duos
Z1Galaxy Note 4Galaxy Note 4 Duos
ColorWhite/Black/Wine RedFrosted white/Charcoal black/Bronze Gold/Blossom PinkFrosted white/Charcoal black/Bronze Gold/Blossom Pink
Dimensions (width x height x thickness)2.5 inches (63.2 mm) x 4.7 inches (120.4 mm) x 0.4 inches (9.7 mm)3.1 inches (78.6 mm) x 6.0 inches (153.5 mm) x 0.3 inches (8.5 mm)3.1 inches (78.6 mm) x 6.0 inches (153.5 mm) x 0.3 inches (8.5 mm)
Weight112 oz (112 g)176 oz (176 g)175 oz (175 g)
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Display of the Z1

The Z1 has a PLS TFT screen with a resolution of 480 x 800. The screen clarity is the same as a standard smartphone. It is perfectly satisfactory. If you look closely at the screen and have good eyesight, you can see some dots on the screen.

Z1
Galaxy Note 4
Galaxy Note 4 Duos
Z1Galaxy Note 4Galaxy Note 4 Duos
Display size4 inch5.7 inch5.7 inch
Display typePLS TFTSuper AMOLEDSuper AMOLED
Screen resolution (width x height)480 x 8001440 x 25601440 x 2560
Pixel density233 ppi515 ppi515 ppi
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The battery life of the Z1

The Z1 has a battery capacity of 1500 mAh. It has pretty much the same battery capacity as a standard smartphone.

The processing capability of the Z1

The Z1 uses the Spreadtrum SC7727S CPU with 1.2GHz×2(Dual core). The memory capacity is 768.0MB. It has low spec processing power and its performance is lower than typical smartphones. Also its memory capacity is quite a bit lower than ordinary smartphones. As this capacity is chronically insufficient apps will frequently close forcefully and apps will stop operating.

Z1
Galaxy Note 4
Galaxy Note 4 Duos
Z1Galaxy Note 4Galaxy Note 4 Duos
ChipsetSpreadtrum SC7727SQualcomm APQ8084 Snapdragon 805 ,Exynos 5433Qualcomm APQ8084 Snapdragon 805
CPU specs1.2GHz×2(Dual core)2.7GHz×4(Quad core)2.7GHz×4(Quad core)
RAM size768.0MB3GB3GB
Storage size4GB32GB16GB
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The camera of the Z1

The Z1 has a back camera with 15 MP. Its rear camera has slightly better performance compared to normal smart phones. While there are times when I feel it is lacking, it is able to take pictures with satisfactory quality almost all the time.

Z1
Galaxy Note 4
Galaxy Note 4 Duos
Z1Galaxy Note 4Galaxy Note 4 Duos
Rear-camera resolution15 MP16 MP16 MP
Front-camera resolution7 MP7 MP
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Review of the product design of the Z1

Rating of the ease of carrying it around and getting it in and out of bags or pockets

When deciding whether to buy an Z1, the first important factor is its size. Smartphones are used daily, and so it is important how easily they can be carried around and pulled out of bags or pockets. This review assesses how easy it is to carry the Z1 around and put it away.

Ease of grasping it in your hand to carry around

The Z1 is a size that can easily be held in one hand. Even when holding it along with other things such as a wallet, its size makes it difficult to drop accidentally.

Ease of carrying it around when placing it in your pocket

It doesn't feel strange even when you put the Z1 in a pocket. In addition, when sitting on a chair with the phone in a pocket, it can be kept comfortably as it doesn't get caught on one's clothes or body.

Ease of getting it in and out of your pocket

The Z1 has a size that makes it relatively easy to keep and take out. While it sometimes get caught when sticking out of the pocket, I think it is just a matter of getting used to it.

Ease of getting it in and out of your bag

The Z1 is a size that allows you to take it in and out of your bag and use it with ease. Also, since it is compact, even if your bag is small it won't get too bulky which is convenient.

Assessment of user-friendliness and ease of handling

It is important to consider the ease of using the phone in one hand. It can be said that it would be very useful if it is easier for you to send emails and instant messages or answer calls using one hand while cooking or using your computer. Here, we have reviewed the Z1 by focusing on the ease of using it in one hand and the ease of typing in letters.

Ease of grasping the phone in one hand

The Z1 is a size that allows you to have a firm grip even while using it. Since your hand is kept stable, it is difficult to accidentally drop the phone, and it is very easy to use. Since the original body size is small, the phone is still easy to hold even when using a case.

The weight you feel when using the phone with one hand

Since the body of the Z1 is lightweight, your hands will hardly ever feel sore or tired even after using the phone for a long time. Also, since it is a light and compact phone, it will still be easy to hold even when using a case.

Ease of pushing the upper button on the screen using one hand

Even when used with one hand, the Z1 has a size which allows buttons on the edges of the display to be operated. However, people with small hands may lose their grip if they try to press the buttons at the edges.

The size of the buttons on the App

Overall, the operating buttons on the Z1 feel small. This makes it easy to mistap, but usually this won't be a problem once you get used to it. The operating buttons in games are generally small so you may feel like it is hard to control when you're playing.

Ease of typing in letters using the flick function

You can type easily on the Z1 even with a tight grip. Even when typing at high speeds you can type freely without having to loosen your grip.

Ease of typing in letters using the keybord funtion

It is difficult to not have typos with the Z1 because each button on the keyboard is quite small, and it is almost impossible to type fast with the device. With a device this size, it'd be better to switch to flick input so you can type faster.

Assessment of whether it is suitable for standard use

Assessment of whether it is suitable for standard use

For people who use their smartphone on a daily basis, high performance is a rather important factor. When the performance is not good enough, then, for example, applications don't work as they should or the screen is difficult to see, and this causes stress. This review looks at whether the performance of the Z1 is suitable for making phone calls, messaging, or using SNS.

The size of the letters and the ease of operation

The display of the Z1 is somewhat small and this can make letters feel small as well. However as the size of the writing can be adjusted in the OS settings and the screen isn't so small that it is hard to see images, this shouldn't be an inconvenience for normal use. While it doesn't seem well suited for reading long sentences in emails or when researching something, I can say that it is suited for short messages and for looking things up quickly.

Ease of reading sentences

The Z1 displays fonts relatively nicely, and even small characters can be displayed nicely. While people with good eyes can see the jagged outlines of characters when they look at the display up close, this does not make the characters difficult to see. It can be said to be a display that is adequately suitable for reading text.

The beauty of the overal screen

The Z1 can display photos and videos beautifully. While people with good eyes can see jagged outlines when they look at the display up close, it is not really something of concern.

Ease of writing sentences

When typing a sentence with the Z1 the keyboard obscures the screen to some extent. While I do feel like there isn't enough work space to allow for long sentences, for short sentences it isn't really an issue.

Does it have sufficient performance to make calls and send emails?

When using the Z1 for calls, emails, or for chatting the processing power can be insufficient, and you can experience slowdowns as a result. When using apps it felt like the motion would get caught up which was a bit stressful. For ordinary more relaxed use this slowing isn't at a level that would bother you, but its performance is not suited for fast control.

Does it have sufficient performance to search for things and using Social Networks?

The device is not suitable for looking things up on the Internet or browsing SNS, and you can always feel how laggy the phone is. Apps can stop or become completely unusable even when you try to slowly operate the phone.

Does it have sufficient performance to do other tasks while searching for things and using Social Networks?

For example, if you're using multiple apps simultaneously, such as swapping between SNS or chat frequently, it will gradually start to operate slowly. If you use it for a long period in this way apps can begin to forcefully close due to lack of memory and can crash.

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