Solar Mobile Phone Charger

Hello everyone
I have a choice of two solar mobile phone chargers. It has a power of 0.4W and is cheaper. The other has a power of 1.1W. What does this mean and how would it affect the performance of loaders? Does this mean that I have to leave the chargers in the sun longer, to fully recharge the internal batteries, or you can hold more charge than the other, or that you can actually charge the phone faster than the other? Please, I'm new to this, and I answered all ... Thank you to all intelligent people, in advance!

More power (measured in watts) issued by the shipper, the faster your phone will be charged. It will not make your phone battery hold more charge or last longer if.

You will need a long time at full load on your mobile phone using either. But there are many on the market. You need a panel folding or roll or a solar backpack solar or do things. Here's a link to a site that has this kind of thing. Lot more than 2 choices. http://www.oynot-solar.com/