I can say the same about my smartphone. I wanted to replace it because I also noticed that it was overheating and discharging quickly, but my friend told me that I didn't have to do that and there are ways to fix it. He advised me to contact the experts from https://howly.com/smartphones/ who told me what could be the cause of overheating of my smartphone. It turns out that I was not using the original charging cord and that is why I was having problems. Thanks to these professionals for the great advice!