Is roaming free in the Isle of Man with my UK (O2, EE, Vodafone) or EU SIM card?

It's a common misconception, but roaming is generally not free in the Isle of Man with UK or EU SIM cards. Despite its close ties, the Isle of Man is a British Crown Dependency, not part of the UK or the European Union. This means 'Roam Like at Home' benefits typically do not apply. Most home carriers, including O2, EE, and Vodafone, will charge premium roaming rates. HotelESIM offers a much more predictable and often more affordable alternative.