A:Answer Previous answer incorrect, this phone is both GSM and CDMA. I've been told by both BestBuy and Samsung (instore rep) that it is unlocked, however Verizon only unlocks on GSM not CDMA (not sure on that). You can view the full specs here (for some reason, you have to scroll up a bit to see "Specs", then click the link to expand):
http://www.samsung.com/us/support/owners/product/galaxy-s8-verizon#fullspecs