First I would like to give you basic knowledge about hardware.
COPYRIGHT CLAIM SAIKAT ROY
#Processor: -Qualcomm Snapdragon is the all-rounder among the processors used in mobile. you can consider it best after Intel processors used for mobile. MTK Processors-in initial days they are very good, even better then qualcomm processors. But time effects them the most. After 6 months-1 years almost every MTK processor included smartphone starts to have hanging problems. When it starts You can consider that phone became a trash. But in Qualcomm Snapdragon don’t have that issue.Intel- the brand name says it all. Intel was the best and also best now. But in most of the phones Intel is not provided due to it’s costing. Intel is best in every way a processor could be.#Software: - The more upgrade the Android version becomes the more good it is.security become better, user experience becomes better. Better OS also gives more less pressure on RAM or other hard wares.well my short tips ends here. if you have any further question, please ask me in comments section.