A:AnswerI own and use the S9+ Unlocked bought from Best Buy. It supports wifi-calling, lte, and hotspot on tmobile sim card. So the answers to all your queries are yes, yes and yes. Just remember to buy a shock resistant case with it immediately. I use an Incipio Dualpro for S9+ with mine but the choice is yours. Choices from makers like Incipio, Speck, Tech21, Otterbox, Modal, etc.
A:AnswerHello! We appreciate your interest in our products. Please go here https://goo.gl/cMFkHi for information on T-mobile's S9 pre-orders. We hope this answers your question and helps you with your purchase decision. ^Rod
A:AnswerHello! We appreciate your interest in our products. The purpose of an unlocked device is to provide you the freedom to use what service works best for you around the world. However, it is always a good idea to confirm with the carrier in your country you intend to use the device in that there will be no complications. We hope this answer your question and helps you with your purchase decision! ^Rod
A:AnswerYes, one great option we are offering is 24 months interest free with the approval of the best buy credit card. You can apply online or go in to your nearest best buy to do the application.
A:AnswerNo. This is the U.S. unlocked model with the Snapdragon 845 processor. However depending on your carrier, you may be able to use this model in other countries.