Consequence of using chargers with different output of Ampere

Hi there

I have both a Samsung and Sony charger, which both provide an output of 5 V.

But they have a different output of Ampere:

Sony 850 mA
Samsung 700 mA

So I kind of know that I can use both. So my question is whether the Sony charger will be faster at charging my current phone (a Samsung)?

Thanks in advance!

 

Hi there, thank you for helping me out!