Foldable smartphones have quickly entered our lives as a result of the work of Samsung and Huawei. In fact, Samsung’s foldable smartphone Galaxy Z Flip has met with great interest from users. Even though foldable smartphones have aroused interest in their designs, they still cause two more issues, which are still discussed, even in standard smartphones such as durability and battery life. The battery life of smartphones is still not enough The battery life of smartphones has not improved greatly over the past few years. Basically, the battery life of smartphones is enough for only one day. We all have to recharge our phones overnight. Lithium ion batteries, which came up with Motorola StarTac in 1996, are still used with some improvements in today’s smartphones. Although the battery capacities and security levels have increased, the energy need of the devices has increased much more, and the battery life will be shortened after 24 years. Even standard smartphones offer only one day use with their ‘huge’ batteries, while foldable smartphones have smaller batteries than ‘non-foldable’ models despite larger screens and stronger hardware. Consequently, battery life is a common problem for foldable smartphones, although all smartphones are a common problem. Another problem: Durability Almost all the smartphones we currently use are made of glass and plastic. Making the phones made of glass makes these expensive devices very fragile. Even smart phones produced with the most advanced glass technology fall off their knees and their screens or body covers break. Producing smart phones with glass designs creates an aesthetically positive result, as well as using some new technologies. Unfortunately, features like wireless charging don’t work on metal bodies. Foldable smartphones, on the other hand, have a much more sensitive design due to their structure. Although the frames of the devices are metal, their screens are mostly composed of ultra thin glass or plastic. This makes foldable smartphones even more fragile than overly fragile standard smartphones. It is a mystery for technology manufacturers to find a solution to this problem in the future.