I love my new Surface 3 4G LTE but I had a heck of a time getting it to work on Verizon's Network so I want to save you a huge headache! The serial number and IMEI number will come up as a not compatible with Verizon device. They will say "sorry, that doesn't work on Verizon's Network". This devise is labeled as GSM network and Verizon is CDMA network. However 4G LTE is 4G LTE. You have to work around it. The Verizon Nano Sim Card must be activated and working before you install it in to your new Surface 3 4G LTE. That means the Verizon Tech will need to use the serial number or IMEI number from another device to activate it. Then take the activated Sim Card and install it in the Surface. The Tech will be able to adjust the serial number and IMEI number back to your device after it is installed and connected to the internet through Verizon. I left Verizon with my new Surface 3 4G LTE connected to the internet and working great on Verizon's Data network. I just saved you the 4 to 5 hours I spent talking with and being transferred from Tech to Tech at Microsoft along with a day of making multiple trips to several Verizon locations trying to get an employee capable and willing to think outside the box. I finally found her and she was super nice and very knowledgeable. I have a Surface Pro 3 and I absolutely love it, so when the new Surface 3 with 4G LTE was released, I pre ordered it. It isn't as fast as my Pro but it is definitely an iPad Killer because that's what my new Surface 3 4G LTE just replaced for me. I am retiring my iPad and moving on to the Surface. I hope this helps you get up and running much faster than I did. Good luck.