What should I think before by any phone

 Please atleast once must think about these before buying any phone or tab .

We do not buy mobile phone daily so check facts .

1. Brand Value  ( Apple > Samsung > Normal > pure Chinese)
2. Price  Range( Only you know how much money will spend )
3. Requirement ( No phone is perfect in all aspects , some have good camera , some have good performance)
4. RAM ( Google phone 4GB RAM is better than other's 6GB RAM)
5. Dual 4G with VoLTE
6. Need 5G?
7.  Process type ( Snapdragon , Exynos, helio etc)
8. Battery ( Samsung A series 3000 mAh is better perform than Reputated chines 4000mAh)
9. Camera ( google pixel 12.3MP is always better than any 64MP phone , & Number of camera is just making fool us)
10. Dual slot with memory
11. Internet memory matter alot
12. Earphone Jack ( 3.5 mm is always best)
13. Charging/USB type ( Type C is working fine)
14. Display Quality ( PPI should high minimum 300++ , resulation should high )
15. Display type ( LED, AMOLED ,sAMOLED there are eye caring display)
16. Heating issue
17. Water resistant
18. Heaviness
19. Fingerprint is available or not?( Not need to in-display fingerprint)
20.  For Video shooting (optical image stabilization)
21. Charging time ( shouldn't be more than 2.5 hours)
22.  If eSIM is available you need to know currently there are two companies which provides e-SIM : AIRTEL & JIO.
23.