Setting up an eSIM takes about five minutes on most phones. You go into your device settings, select the option to add a cellular plan, scan a QR code from your carrier, and the eSIM activates within seconds. No physical SIM card, no SIM tray tool, no trip to the store. I've done this on three different phones while traveling through the Pacific Islands, and the process is straightforward once you know where to look. If you're not sure what an eSIM is , here's the short version: it's a SIM card built into your phone's hardware. Instead of swapping a tiny plastic chip, you download your carrier profile digitally. What You Need Before Starting Before you begin, make sure you have four things sorted. A compatible phone. Most phones released after 2020 support eSIM. All iPhones from the XS onward have it. Samsung Galaxy S20 and newer. Google Pixel 3a and newer. If you're unsure, check your phone's settings for any mention of "eSIM" or "A...