Will using a mobile phone all the time shorten its life?

Judging from your description, using a mobile phone all the time will shorten its life. But this effect is not great. The specific life of a mobile phone depends on its internal hardware. Cheap mobile phones like that don't last long. If you want to talk about life, you can only say that the life of the battery will gradually decrease. As long as it is charged scientifically, the life of the battery can be more than doubled.

Nowadays, the iteration of smart phone update is very fast, and the hardware loss of mobile phone is an inevitable phenomenon, but it can never be repaired by shutting down every night. Moreover, the designers of mobile phone hardware settings have long considered the problem of long-term use, and the quality and workmanship are constantly improving, and hundreds of hours of operation are completely within the tolerance range.

I think the main consideration is the fever of the mobile phone. The accumulated heat will increase the hardware loss of the mobile phone, so turn off the mobile phone occasionally for cooling!