Originally Posted by dehsA
So what's the difference
Good question. Some guy post the same question in kickstarter,
The creator answered as following:
1. QiPack is the world's thinnest inductive charger - it's 60% thinner (even 50% thinner than Sony CP-W5) than ARK
2. QiPack has an aesthetically-pleasing, sleek design. Take its aluminum shell for example - in order make sure the Aluminum is 300% stronger and 30% thinner, we've made the effort to find the same supplier of HTC.
3. QiPack offers high-efficiency and rapid charging. Optimized on the most stable wireless charging chips and the latest WPC Qi 1.1 standards, QiPack's wireless charging capabilities have a transmitting efficiency of up to 75% - 78%.