A:AnswerYes it’s compatible with ATT. Just take the SUM Card from your old phone and install it on your A51. You don’t have to go to ATT store unless you don’t know how to do it. I transfer mine from an LG phone to A51. They’re both ATT
A:AnswerYes, you can use this phone with Trac. You will need to call Tracphone customer service. (Fyi, there's a metal key that comes with the phone that you have to use to open the sim card and additional memory door, don't loose the mark key). I am using mine with Straight Talk. Yes, you'll need a sim card for any carrier. The battery, you'll need a tech to open the phone or unless you're super techy. The back doesn't come off easily. You can go to YouTube for an example.
A:AnswerHello Water, thanks for asking! If you have an S7 or newer, your phone is equipped with protection from water, dirt, and grime. An IP rating or Ingress Protection rating is a universally accepted measurement for dust and liquid resistance. Almost all newer Galaxy phones have an IP rating of 68, excluding the Galaxy Fold, Z Flip, and the S10 5G. That means you can bring your phone on your adventures without having to worry. ^Elizabeth
