I sincerely hope that the Fire 7 works for you. I have a so called "free" tablet from Verizon that has a wireless connection if I am driving or whatever (just like a phone). Yeah, I pay every month for a phone line for it, but after getting used to it, now I wouldn't be without one being available. It goes with me for reading books via the Kindle App. I buy a lot of Amazon kindle books.... just about every week.... Great for looking up driving directions if for some reason I question my regular GPS or simply want to look at a map of surrounding streets or highways.... you know when you're lost.
Today I was in Walmart and wondering around the electronics section a bit. I was looking for a small case for my new SQUARE with the chip reader. It has just sat on my desk. I needed something that I would notice and be able to carry it on jobs and keep it clean and available. I found a very small camera case ($6) just wide enough for the reader and the usb wire for charging. I lost two of the old slide type readers.... and always kept misplacing them. Now, it won't happen. Might forget it, but I will know instantly if I have it with me to accept credit and debit cards. I still prefer checks. But what can I say....