One who is not familliar with IOS, it is a very fast OS. I have been using Xiomi from last more than one year and I can truly say you can safely bet on iphone 5s.
Zero hardware and software issue.
Battery goes beyond 24 hour during Normal usage.
By normal usage I meant 0-100% charge usage one iphone 5s after a 100% charge.
2.6 Hours phone.
40 minutes facebook.
40 minutes Whatsapp.
and using many app but its battry backup is too good.
And total of around 30 minutes with other smaller apps.
As per my opinion this is Really nice phone.