On BestBuy the unlocked s10 description says it would work with all carriers and boost mobile is on that list of carriers so yes it is compatible but i dont know if boost mobile themselves would activate it.
Hi there! Thanks for your inquiry. You need to order a compatible SIM card. Please follow this link to do so: https://activate.boostmobile.com/bring-your-phone. Besides this, do you have any other question or concern?
Hello there. We do not have an confirmation that any of the new Samsung S10 series can be BYOD. Any official announcement will be made in regards to this.