What are the advantages and disadvantages of low vs high amps and watts?

I want to get a car charger for my IPhone 6 (not 6s). I see different options for electrical amps and watts. What are the technical reasons to choose one over the other?

  • Asked about:  Belkin Car Charger (2.4A/12W) with …

1 Answer from the Community

  • Answer

    The advantage of high amps and watts is that charging will be faster, low amps and watts mean that charging will take longer,