Does my phone support eSIM?
Two things have to be true: your phone supports eSIM, and it isn't locked to your home carrier. Both take about a minute to check.
Does it support eSIM?
iPhone XS, XS Max, XR or later
Apple lists these models and later as eSIM-capable. In mainland China, only some recent models support eSIM. (Apple)
Pixel 3a or later
Pixel 3a and later can use an eSIM; Pixel 7 and later can run two eSIMs at once if the carrier allows it. A Pixel 3a bought in Japan can't use two SIMs. (Google)
On other Android phones, look in Settings under Network or Connections for an option to add an eSIM, or check the manufacturer's support page for your exact model.
Check 2Is it carrier-unlocked?
Apple says that to use another carrier while traveling, your iPhone can't be locked to a carrier. On an iPhone, go to Settings > General > About. If you see "No SIM restrictions" next to Carrier Lock, it's unlocked. (Apple)
If it's locked, your carrier is the one that can unlock it. Apple explains the process in its unlock article.
Setting upInstalling a travel eSIM
Install it on Wi-Fi before you fly
Apple notes your iPhone usually needs Wi-Fi to activate an eSIM. Plans that start on first use won't begin counting days until you connect abroad.
Keep your home line if you want
Apple's guide explains you can use the travel eSIM for data and keep your home line on for calls and texts, though your home carrier may charge roaming on that line.
Pick the data line
On iPhone, choose which line uses data under Settings > Cellular > Cellular Data.
Switch back when you get home
Turn your home line back on and turn off travel eSIMs you no longer use.
Sources: Apple: About eSIM on iPhone, Apple: Use eSIM while traveling internationally, Google Pixel Help, checked Nov 7, 2026.
Phone checks out?
Compare plans for your destination.
Common questions
How do I know if my iPhone is unlocked?
Go to Settings > General > About. If "No SIM restrictions" appears next to Carrier Lock, the phone is unlocked, according to Apple.
Do I need Wi-Fi to install a travel eSIM?
Usually, yes. Apple says your iPhone must be connected to Wi-Fi or a hotspot to activate an eSIM, though some eSIM-only models can activate without Wi-Fi in some countries.