Which eSIM should I use for the USA?

"What eSIM should I choose for a trip to the USA?" "What should we do if we have different carriers?"
I use ahamo, and my husband uses UQ mobile, so since we have different carriers, I researched the best communication methods for each of us! If you are a couple or married couple with the same concern, please use this as a reference! 😊
*The basic guide on how to choose an eSIM/SIM is explained in my previous article.
👇[Florida Honeymoon] What to do about smartphone communication abroad?|eSIM・SIM・Thorough comparison of roaming!

👫 In our case (we have different carriers!)

In my case (ahamo)

ahamo allows for up to 30GB of roaming abroad at no extra cost. Since our Florida trip is 8 nights, it fits within 15 days, so using roaming as is is the best option! No need to buy an eSIM 😊
⚠️ However, it might be safer to have one eSIM ready just in case you use up your 30GB by watching a lot of videos, or if your trip happens to exceed 15 days.

In my husband's case (UQ mobile)

UQ mobile charges extra for international roaming (from 980 yen per day). If you use it for the full 8 nights and 9 days, it will cost over 8,820 yen...!
💡 For UQ mobile users, it is more cost-effective to purchase a separate eSIM
Since an eSIM only costs a few hundred to a few thousand yen, it is definitely a better deal.

🏆 4 Recommended eSIMs for a Florida Trip (8 nights or more)

① Klook eSIM [For those who prioritize price!]

Among those I compared, this is one of the cheapest. If you already have a Klook account, you can purchase it directly, making management easy. It is also convenient that you can buy it along with your WDW tickets!

If you are registering for Klook for the first time, you can get a 500 yen coupon by using this referral code!
Recommended for: Those who want to keep costs as low as possible, those who already use Klook

② World eSIM [For those who prioritize peace of mind!]

Operated by a company listed on the Tokyo Stock Exchange Prime Market (Vision Inc.), it is highly reliable. It supports AT&T and T-Mobile networks, providing stable communication. It includes Japanese support and detailed setup manuals, making it safe even for first-time eSIM users.
Recommended for: First-time eSIM users, those who feel safer with Japanese support

③ Holafly [For those who want unlimited data!]

They offer a wide range of unlimited data plans. It is perfect for those who want to fully utilize the My Disney Experience app at WDW, or those who want to upload many photos and videos to social media.
⚠️ Even with unlimited plans, speed may be throttled if you exceed a certain amount. Please check the conditions before purchasing.
Recommended for: Those who don't want to worry about data capacity, those who take many photos and videos at theme parks

④ Airalo [For those who want to use it all over the world!]

A global eSIM service used by over 20 million people worldwide. A feature of their US plans is that you can also choose plans that include a phone number. Since it can be used globally, you can reuse it for other trips.
Recommended for: Those who travel abroad often besides Florida, those who need a plan with a phone number

📡 AT&T network is recommended for use in Florida!

When choosing an eSIM, the network it uses is also important. In Florida, the AT&T network is said to be stable and well-balanced for both urban and suburban areas. When purchasing an eSIM, it is recommended to check if it supports the AT&T network before buying!

💡 Strategy for when two people have different carriers

1. Share data between two people

If one of the eSIMs supports tethering, it is possible for two people to share a single eSIM. However, since data consumption will double, it is best to choose a large-capacity plan.

2. Prepare separate eSIMs for each person

This is safer because both people can communicate independently. It also has the advantage of being able to stay in touch even if you get separated!

3. ahamo for roaming, UQ for eSIM

If your carriers are different like ours, choosing the method that suits each person is the most cost-effective approach. 😊

✅ eSIM Pre-purchase Checklist

• Check if your smartphone is eSIM compatible (check under Settings > General > About)
• Check if the SIM lock is removed
• Do not cancel your Japanese SIM (it may affect two-factor authentication for services like Wise!)
• Choose a plan that matches the number of days you are staying (a 10-day plan is safer for an 8-night trip)
• Check if it supports the AT&T network
• Check if it supports tethering (if sharing between two people)
• Complete installation and setup by the day before your trip

Summary

To summarize the points for choosing an eSIM for a Florida trip...
• If you have ahamo, roaming is 0 yen extra! No need to buy an eSIM
• For other carriers like UQ mobile, buying an eSIM is cost-effective
• For price-conscious users → Klook (Referral code: GQMX47)
• For peace of mind → World eSIM
• For unlimited data → Holafly
• To use it all over the world → Airalo
Since I use ahamo, I think I will add a little extra and use Klook!
I will reveal all the results of actually using it in Florida and the comfort of the connection in my Florida travelogue. 😊

I have also compiled other things I researched about traveling in a magazine, so please take a look!