Is roaming in Bermuda included for free with my US (AT&T/T-Mobile/Verizon) or UK SIM card?

No, this is a common misconception and a significant roaming trap! Bermuda is generally not included in standard domestic plans for US carriers like AT&T, T-Mobile, or Verizon, nor is it part of UK or EU roaming bundles (and often excluded even from "Caribbean" plans). Most home carriers will charge their highest "Rest of World" international roaming rates, which can quickly become extremely expensive, often $10-$15 per day for limited data. An EastESIM is a smart, cost-effective alternative for staying connected in Bermuda without unexpected bills.