Asus zenfone max is the monster in terms of battery backup.
You can run this phone for days.
This is same as asus zenfone laser but with much bigger battery.
This phone is great for even charging the other phone through otg cable and a micro ucb cable.
This phone is sort of power bank.
This phone have laser auto focus, latest android 6 and asus keep up the update.
It' s good deal for 5000 mah battery for 9000-10000?.
And the zen UI works smooth and whole UI easy to use.
And laser auto focus works fast abd picture are good.