How to Install eSIM on iPhone 16 — Step by Step Guide — Complete Guide 2026

What You'll Need iPhone 16 (or iPhone XR and newer) iOS 17 or later Stable WiFi connection 5 minutes of time Step 1: Check iPhone Compatibility Go to Settings → General → About Look for "Digital SIM" or "EID" number. If you see it, your iPhone supports eSIM. Step 2: Purchase eSIM Visit simryoko.com Select your destination (Japan, Korea, Europe, etc.) Choose data plan (3GB/7days, 5GB/15days, etc.) Complete payment (Stripe, Apple Pay, Google Pay) Step 3: Install eSIM Method A: QR Code (Most Common) You'll receive QR code via email Go to Settings → Cellular → Add eSIM Scan the QR code Follow on-screen instructions Method B: Automatic Installation (iOS 17+) After purchase, tap "Install eSIM" button iPhone will automatically configure Takes 30 seconds! Step 4: Configure Settings Important settings after installation: Primary Line : Keep your main number for calls Cellular Data : Select the eSIM line Data Roaming : Turn ON for the eSIM line Allow Cellular Data Switching : Turn OFF (save batt