A:AnswerYes, but you cannot show a direct connection to AT&T on your T-mobile device. Just keep WiFi and hotspot off. Do a speed test, before and after mobile router is activated. I am using it to get a better signal and faster data. Can avoid using hotspot on T-Mobile.
A:AnswerI have no idea regarding your question however beware AT&T does not include streaming as part of their data plan. Big rip off, the device is good but would not recommend AT&T at least as far as this device is concerned.
A:AnswerYes you will be able to use your fire stick, echo dot, etc. You will need a decent cell signal. Also a good unlimited data plan if you are going to watch a lot of movies, tv, with your fire stick.
A:AnswerThe device itself has no data plan. You buy a SIM and then you associate that SIM to a data plan. So whatever the data plan allows is what you get with this device.
A:AnswerThe battery will last about a day, less if you run in both GHz ranges. It does sleep if not used, but generally wakes quickly when something accesses it. Not sure about your question though as it is battery operated.
