A:AnswerAn unlock phone will work with most of the carriers. If you activate it with your tmobile sim and take it to Bangladesh, it should work with a BD sim card. I bought it but did not activate it until I came to Bangladesh. This phone works fine with BD sim. Hope this helps.
A:AnswerYes. You'll get at least 3G, probably 4G depending on the country. I don't think those carriers have 5G (country dependent of course). But yes, it will work.
A:AnswerIt has the snapdragon 695G and the adreno 619 GPU. While this phone does perform well, I would not buy it for gaming. Its not particularly well optimized. There are other phones with the 695 that perform better.
A:AnswerNo. They will only let you bring in an unlocked iPhone, Samsung Galaxy or Pixel. I'm sure it would technically work since Xfinity uses Verizon towers, but that's what Xfintys' website states.