Blackberry z3 or blackberry z30 or galaxy s 5

Why are you going for old phones when you can buy new phones with better features at the same price.
On flipkart galaxy s5 is for 22k...blackberry z30 for 23k and z3 for 14k.
If u r willing to spend that much money go for OnePlus 2 or Asus Delux or Moto X Play or Moto G3.
If u want to buy blackberry then wait for Blackberry Venice Android slider phone.

Galaxy S5 if you like it. OnePlus 2 is also a good shot though, just sayin'.