I'm using ProMini M8. Been using it to charge iphone 5 and Nexus 4 simultaneously and still have 50% charge. I like the form factor as many powerbank will be "fat" or bulky. It's only slightly wider than iphone 5 and 1 1/2 times thicker.

I've been searching hi and low for a good powerbank and I guess I've found it. Now time to look for Innergie MagicCable Duo with lightning to complete it.

Both Jackery and hyperjuice is a good albeit expensive brands. So chill laaaa

That's why don't go for looks but trusted brands

You hear yoobao alot because it's everywhere, original and not original. I for one not very keen with yoobao.

I only have one and it suits me well. I'm using Promini 8000 and I can charge both my phone few times before need to recharge back.