IPhone 5s 16GB docomo vs iPhone 4S 16GB SoftBank: Which is the best?

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 "iPhone 5s 16GB docomo" has a width of 58.6mm, a length of 123.8mm, and a thickness of 7.6mm. Also, the "iPhone 4S 16GB SoftBank" has a width of 58.6mm, a length of 115.2mm, and a thickness of 9.3mm.

Comparing the width and thickness of the body, there isn't much difference between the "iPhone 5s 16GB docomo" and "iPhone 4S 16GB SoftBank" 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 "iPhone 4S 16GB SoftBank" is a more compact size than the "iPhone 5s 16GB docomo". For that reason the "iPhone 4S 16GB SoftBank" 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 "iPhone 4S 16GB SoftBank".

Comparing the overall size of the two devices, there isn't a big difference in size between the "iPhone 5s 16GB docomo" and the "iPhone 4S 16GB SoftBank". 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.

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 "iPhone 5s 16GB docomo" is about 112.0g, and the weight of the "iPhone 4S 16GB SoftBank" is about 140.0g. Comparing the weight of the two devices, the "iPhone 5s 16GB docomo" is a considerably lighter smart phone than the "iPhone 4S 16GB SoftBank", and there is a difference of about 28g. In terms of the burden placed upon your fingers and wrist, the "iPhone 5s 16GB docomo" is superior to the "iPhone 4S 16GB SoftBank". If you are going for a smart phone that won't lead to hand fatigue even after extended use, and is less likely to place a burden on your fingers, we recommend purchasing the "iPhone 5s 16GB docomo" over the "iPhone 4S 16GB SoftBank".

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 "iPhone 5s 16GB docomo" has a 4.0inch display. Also, the "iPhone 4S 16GB SoftBank" has a 3.5inch display. Comparing the screen size, the "iPhone 5s 16GB docomo" has a larger screen compared to the "iPhone 4S 16GB SoftBank", with a roughly 0.5inch difference. As a result, the user is less likely to mistap when using apps on the "iPhone 5s 16GB docomo" than on the "iPhone 4S 16GB SoftBank", and is also able to enjoy videos and games on a larger screen. Therefore, we recommend the "iPhone 5s 16GB docomo".

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 "iPhone 5s 16GB docomo" is 640 x 1136, and pixel density is 325ppi. Also, the resolution on the "iPhone 4S 16GB SoftBank" is 640 x 960, and pixel density is 329ppi. Comparing the pixel count, the difference in pixel density between the "iPhone 5s 16GB docomo" and the "iPhone 4S 16GB SoftBank" is negligible. As a result, they are both evenly matched in terms of picture quality and easiness on the eyes. Therefore, we recommend comparing them based on other aspects of performance and functionality.

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 "iPhone 5s 16GB docomo" is 1440.0mAh, and the "iPhone 4S 16GB SoftBank" is 1420.0mAh. Regarding battery capacity, there is a negligible difference in battery capacity between the "iPhone 5s 16GB docomo" and "iPhone 4S 16GB SoftBank". Since both have roughly equal battery life, you are better off comparing them based on other aspects of performance and functionality.

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 "iPhone 5s 16GB docomo"'s CPU is a Apple A7, with performance measured at 1.3GHz×2(2.0-cores). Also, the "iPhone 4S 16GB SoftBank"'s CPU is a Apple A5, with performance measured at 1.0GHz×2(2.0-cores). Comparing CPU performance, there is almost no difference in the specs of the "iPhone 5s 16GB docomo" and the "iPhone 4S 16GB SoftBank". For that reason the level of smoothness felt when using apps and comfortable handling of games is about the same. For that reason it is better to compare them in terms of other aspects of performance and functionality.

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 "iPhone 5s 16GB docomo" is 1.0GB and the weight of the "iPhone 4S 16GB SoftBank" is 512.0MB. Comparing the devices in terms of RAM, the "iPhone 5s 16GB docomo" has a significantly larger amount of RAM than the "iPhone 4S 16GB SoftBank", with a difference of about 511GB. In terms of the unlikeliness of crashing and the ease of multitasking, 3D games and VR, the "iPhone 5s 16GB docomo" is superior to the "iPhone 4S 16GB SoftBank". 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 "iPhone 5s 16GB docomo" over the "iPhone 4S 16GB SoftBank".

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 "iPhone 5s 16GB docomo" is 16.0GB. Also the "iPhone 4S 16GB SoftBank" is 16.0GB. Regarding storage capacity, there is a negligible difference in storage capacity between the "iPhone 5s 16GB docomo" and "iPhone 4S 16GB SoftBank". As a result, you can save roughly the same amount of pictures, and install roughly the same amount of applications, on either phone. You are better off comparing them based on other aspects of performance and functionality.

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.

"iPhone 5s 16GB docomo" has a 8.0MP main camera. Also, "iPhone 4S 16GB SoftBank" has a 8.0MP main camera. Comparing rear camera performance, the "iPhone 5s 16GB docomo" and "iPhone 4S 16GB SoftBank" have approximately the same pixel count. As a result, they can both take pictures and shoot videos of roughly the same quality. Therefore, we recommend comparing the two based on other aspects of performance and functionality.

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.

"iPhone 5s 16GB docomo" has an 1.2MP front camera and "iPhone 4S 16GB SoftBank" has an 0.31MP front camera. Comparing rear camera performance, the front camera of the "iPhone 5s 16GB docomo" has a higher pixel count than the "iPhone 4S 16GB SoftBank", with a roughly 0.88MP difference. As a result, the "iPhone 5s 16GB docomo" is better able to take high quality selfies than the "iPhone 4S 16GB SoftBank", and the pictures will look cleaner when printed. Therefore, we recommend the "iPhone 5s 16GB docomo".