OUKITEL U18 4G LTE UK SIM Free Mobile Phones,5.85 Inch 21:9 FHD+ Display,16MP+5MP+13MP Cameras,Octa-Core 4GB RAM+64GB ROM,Dual SIM Unlocked Smartphone,4000mAh battery,Android 7.0,Face ID,GPS (Glod)

There was no problem when I charged the phone, but when I tried to set it up, it overheated. I currently have an Oukitel u15 'phone and that has never overheated . I wouldn't advise purchasing the phone until the problem of 'overheating' has been addressed.