It's personal preference. My dad has an S4. My uncle has an S5. I have an N5. My dad was considering getting an N5 so we swapped for a week. Personally, I feel the N5 meets my needs better than the S4. But everyone is different. If a removable battery and expandable storage are important to you then go for the S4 without a doubt. If those things are less important that speedy updates and a fully stock experience, then go for the N5.
I'm sure Fido is like the other providers in that they give you 10 days to use the phone as long as you use under (100?) minutes. Try them both out for a week and see which one you prefer. It's really shocking how much time people spend trying on and comparing and mulling over a $20 t-shirt in a mall, but will buy electronics without actually trying them out. Would you buy a house without seeing it? Would you buy a car without test driving it? Same idea for a phone.
I'm sure Fido is like the other providers in that they give you 10 days to use the phone as long as you use under (100?) minutes. Try them both out for a week and see which one you prefer. It's really shocking how much time people spend trying on and comparing and mulling over a $20 t-shirt in a mall, but will buy electronics without actually trying them out. Would you buy a house without seeing it? Would you buy a car without test driving it? Same idea for a phone.