Here you have explain about the cell phone that you mostly used for your work and about the laptop. If we see in our subcontinent the most of mobile companies that are working best in a moderate price are Oppo vivo redmi and realme.

You are also using realme C2 5S mobile. Yeah it's a good to use all though there was some problem in the starting with realme mobile because it was hang then access your was done on it but now I think so company has made a great progress and resolving all the issues.

And the laptop you are using the company of HP. Why considered HP laptop or best in term of battery timing because I have seen many laptops of HP which are two good but I mostly use Dell laptop. Best of luck for your contest. I also made a post about this contest I hope you will visit my post