Kind of a noob when it comes to phones. I have a Samsung Galaxy S3, if I buy an unlocked Nexus 5X will I be able to swap out the SIM card inside and have it work right away? Or is there something more that needs to be done?
The S3 uses Micro-SIM where the Nexus 5x uses Nano-SIM. If you have a newer tricut sim with the S3 you can just snap it into a Nano-SIM, otherwise you will have to buy a new sim card. Other than that though there is nothing else that you need to do.