Planning a trip to Cambodia? The days of showing up unprepared are gone. From the official Cambodia e-Arrival app that replaces old paper forms, to shifting e-Visa and border rules, navigating entry requires a digital-first approach. Before you pack your bags, make sure you know the critical tech updates, currency quirks, and latest entry requirements. Here are 7 absolute essentials you need to know to ensure a seamless, hassle-free arrival.