Why use eSIMFlyer in Puerto Rico if my US carrier (like AT&T or T-Mobile) works there?

Even though Puerto Rico is a U.S. territory, relying solely on your domestic carrier can often lead to unexpected roaming charges or, worse, slow, unreliable data. Your U.S. plan might ‘work’ by piggybacking on local partner networks, which frequently offer throttled 3G speeds or inconsistent coverage. With eSIMFlyer, you’re securing a dedicated, high-speed connection directly with the best local networks, often T-Mobile (Liberty PR) or AT&T, ensuring you get optimal 4G/LTE or even 5G speeds. It's about guaranteed performance, not just basic functionality, keeping you productive from touchdown to takeoff.