What’s an eSIM?
Smartphones (and even cell phones, before them) rely on SIM cards to talk to the network. eSIM is newer technology that simply made these SIM cards virtual. Most smartphones, including iPhones, made in the past 2-4 years all support them.
By making these cards virtual, retailers (like airalo) are able to sell you international SIM cards right in their app, and load the cards straight into your phone while leaving your existing carrier settings alone.
You can then just hop into your phone’s settings, and switch between carriers instantly. Technology!
Staying Connected
You know the drill, the moment you arrive in a foreign country, off with the smartphone data unless you're looking for a very expensive surprise. Maybe we could use a little digital detox anyway? But the reality is, travel nowadays is so much easier with technology. And eSIMs have completely changed the game for affordable International roaming.
Set aside the Instagram updates, here are situations when you really need a working mobile internet connection:
Uber! Yes, it works outside the US. No, you don't have to do anything special. It can be incredibly cheap by U.S. standards too in places where the dollar goes farther (see note on purchasing power when traveling abroad). But the end result is nothing short of amazing. Convenient, safe, on demand transportation without any haggling available at any time in major urban centers. I've taken private (non-shared) Uber rides for $3 crossing half the city in places like Saigon, Rio, and Penang.
Google Maps. Yes, it can be nice to get lost in a destination. Usually ones in the more affluent parts of the world when you have time to spare and your surrounding are charming, sanitary and safe. That’s not always the case. While offline maps is great, there's nothing like being able to use it live.
Messaging services. Never underestimate the unexpected. There will be times when you need to message or call someone while abroad. Things run late, questions arise, circumstances change and now you need a place to stay.
But...how?
Let's start from the most mainstream options and go the most savvy:
1. Buy roaming packages from your carrier. These used to to be like $5-$10 per day, but prices have come down in more recent years, and data allowances have gone up.
Pro: Easy, familiar since you're using your existing phone and carrier.
Con: Expensive and limited.
2. Use an international eSIM. I personally like airalo, but there are other competitors. Pick an eSIM for the country or region that you’ll be visiting, and select how much data you’ll need.
Pro: Far cheaper, with all the data you’ll ever need.
Con: Your phone does need to be unlocked. This is a great reason to finally get around to doing this for that iPhone you got for “free” while forking over $70/month for an unlimited data plan on the big three carriers.
3. Buy a local SIM card for your smartphone.
Pro: Cheapest option, with the most data.
Con: Finding a SIM card abroad with the correct activation instructions. Your phone has to be unlocked. Need a different one for every country. More difficult in some countries than others, depends on the local regulations.