I have been using this phone since 3+ years now. It still works fine than any other other more costly phones from 10K to 15k smartphones of that time.
Specs: It has SD400+ series, 3gb ram 32gb storage. In 2018 I can easily play Pubg mobile on it till 1 and half year since more.
After continuous rough and tough use of 3 years battery still works fine(still a backup of one day or more on full charge) also it has fast charging support. Touch panel is not responding for left side of screen only 2mm so its not abig deal or problem. And most importantly this phone doesnt hang or freeze under stress usage.
At last I want to say if you want a secondary phone with good performance you can keep this on without thinking twice.