Hey Guys Need Help,so I have One Plus 3T,want to buy new Phone and I am having HDFC Credit Card,so Flipkart is giving 11.2K for OP3T under exchange and Amazon is giving 8.1K for the same,now applying all offers on both(don't hae SBI Card for Amazon) I am getting One Plus 6 at Rs.20,899 and Galaxy S8 at 16,911 and Zenfone 5Z at 12,499 so which should I choose,personally I don't want to buy Zenfone 5Z because of IPS LCD display and Zen UI.