Nubian z 1 1 which system is the most stable? Nowadays, mobile phones consume electricity very fast and are prone to fever. Is it the system or the battery?

Z 1 1 is a mobile phone launched on 20 16. After several years of use, it is normal that the battery will age and the power consumption will become faster. I suggest you buy a new mobile phone. If you really don't want to change your mobile phone, you can contact Nubian after-sales customer service and ask whether the official maintenance point can provide battery replacement service and how much it costs. It is best to change, but if you can't change, don't force it. A friend of mine used a Huawei mobile phone bought two years ago, and the screen was broken. It took more than 100 to replace the screen, front and rear covers and batteries after sale.