Which is better Lumia 640 XL or Lumia 830?

[Windows Central Question]

I'm planning to buy a new phone. I am so confused whether If I'll choose the 830 or 640 xl. The 830 costs lesser than 640 XL here. But the front camera is also my concern as well as the performance and storage.

 

[lbeezy2188]

Check out this other forum discussion it might help http://forums.windowscentral.com/windows-phone-8-1/379455-lumia-640xl-830-wait-till-october.html