A:AnswerYes. According to the device specs at https://www.gsmarena.com/blu_g70-10046.php and then checking the Mexico cell networks at https://www.gsmarena.com/network-bands.php3 for Mexico, it'll work fine there.
A:AnswerThis phone can activate on most major carriers except Verizon. The device has 32 GB of internal memory and has a dedicated slot for Micro SD card.