You may follow this article to choose a SIM card for your Reolink 4G cameras in the United States.
Applies to: Reolink Go, Reolink Go PT, Reolink Go Plus, Reolink Go PT Plus, KEEN Ranger PT, Reolink Duo 4G, Duo 2 LTE, and TrackMix LTE.
If T-Mobile has a strong 4G signal covered in your area, it is recommended to choose a T-Mobile prepaid data-only SIM card.
And some tested virtual SIM cards like Mint and FreedomPop (based on AT&T) can also work with our cameras properly.
You could purchase the SIM cards from the link below and activate these SIM cards on their website.
Note: If your camera model is Go PT, you will need to import APN settings to get the SIM card to work. The APN=ERESELLER, you can refer to the link here to import APN: How to Import APN information to Reolink Go PT