Does the iPhone 18 Pro have a SIM tray?
The iPhone Duo is eSIM only worldwide, the iPhone 18 Pro in twelve countries. Which models still have a SIM tray, and what to do if yours does not.
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eSIM Setup
How to use an eSIM as a hotspot
Share your travel eSIM with a laptop or tablet when you need to, but remember that tethered devices can burn through data much faster than a phone.
· Dual SIM
Dual SIM abroad: keep your number
Run your home SIM and a travel eSIM together: keep your number for bank codes, put every megabyte on the eSIM, and shut the roaming door.
Can I use WhatsApp with a travel eSIM?
Yes, and your number does not change. WhatsApp is tied to the number you registered, not to the SIM supplying data. What to set up before you fly.
What is an APN, and should you change it?
An APN tells your phone how to reach mobile data. Atli sets it automatically, so editing it by hand is rarely the first fix when data will not connect.
Install your eSIM before you travel
Why the eSIM goes on the phone at home, when the plan's clock actually starts, and what to switch on when you arrive.
How to install an eSIM on an iPhone
Install your iPhone eSIM on Wi-Fi before you leave. On arrival, select it for Cellular Data and enable Data Roaming on that eSIM line.
How to install an eSIM on Android
Install your Android eSIM on Wi-Fi before you leave. On arrival, choose it for mobile data and enable data roaming on that eSIM line.