Why is iPhone 6s 11% heavier than the previous model?

In the iPhone 6s, the type of aluminum alloy used for the body has been changed from the previous model, and it has been thought that the weight is 11% heavier. However, according to the overseas news site The Verge reported, the cause seems to have been elsewhere.

New aluminum alloy is not to blame for iPhone 6S weight gain | The Verge
http://www.theverge.com/2015/9/12/9315471/iphone-6s-new-aluminum-doesnt-make-phone-heavier


IPhone 6 / iPhone 6 Plus used 6000 series aluminum alloy with magnesium and silicon added, but 7000 series aluminum alloy with zinc and magnesium added is used in iPhone 6s / iPhone 6s Plus. It is not clear how Apple uses aluminum alloy, but the cause of the iPhone 6s being heavier than the iPhone 6 by 14 g is due to this material change It was thought.

However, according to Apple, the weight of aluminum alloy included in iPhone 6s Plus has increased by only 2 g compared to the previous model, and the weight increase of iPhone 6s is less than 1 g.

In other words, it is said that the direct cause of heaviness is not the material of the body, but why is the weight increasing, the newly installed "iPhone 6s"3D Touch"There seems to be a cause in the corresponding pressure-sensitive screen. Looking at the weight of the display alone, it seems that it is twice as heavy as the previous model.

This is the mechanism of 3D touch display. Apple has increased the layer of display to detect the pressure on the display, and the weight is added accordingly. The iPhone 6 display weighed 12 g, but the display weight of the iPhone 6 s is 29 g, 17 g is also heavier, and when we look at where the total weight increase remains at 14 g, we can see that the weight reduction in other parts You can also see what is being done.


This is a graph comparing the weights of iPhone 6 / iPhone 6 Plus and iPhone 6s / iPhone 6s Plus parts. Looking at the comparison between the iPhone 6 and the iPhone 6s, the most weight occupied in the past was a battery (27 g), followed by aluminum (26 g) and stainless steel (25 g), but the iPhone 6 s The order is displayed (29 g), battery (26 g), aluminum (25 g). Also, although it can not be seen on iPhone 6s Plus, iPhone 6s is a place to worry about lighter weight of the battery.