Three eSIM 2026: Promo Code, Travel Plans, Prices & Data

Yes, the Three discount code ESIMSPOTTER gives you a discount on your plan. Enter it at checkout on the MobiMatter website.

You'll also find the code next to every Three plan in the table above, with a button to copy it.

Yes, Three offers 17 regional plans and 7 global plans, as well as single-country plans. Regional plans cover Asia, the Middle East, Europe, and Oceania.

Global plans work in up to 98 countries and start at $12.99. If you're visiting several countries, one regional or global eSIM is simpler than buying a plan for each.

Three plans start at $9.99 for 15 GB valid for 30 days in South Korea. Right now, the best price per GB is $0.50, on the 30 GB South Korea plan for 30 days ($14.99).

Prices depend on the country, the amount of data and the number of days. We check prices daily, so these figures are up to date. Sort the table above by price or by price per GB to compare.

Most recent phones work with a 3 eSIM, including iPhone XS, XR and newer, Samsung Galaxy S20 and newer, and Google Pixel 2 and newer. Dial *#06#: if you see an EID, your phone supports eSIM. iPhones made for China with two physical SIM slots won't work.

Your phone must be carrier-unlocked. For your exact model, see MobiMatter's list of compatible devices.

You buy 3 Hong Kong eSIMs through MobiMatter, which has an app for iPhone and Android. You can also install from a QR code.

No, a 3 eSIM is data only, with no phone number, calls or SMS. Older 3 Hong Kong plans with a +852 number and minutes are no longer sold.

For calls and messages, use apps such as WhatsApp over data. Your traffic goes through Hong Kong in every country, and MobiMatter warns that some services, such as TikTok, are restricted there.

Three has plans for 99 countries and territories. To see the plans for your destination, choose it under Filters next to the plans.

Yes, you can add data to the same 3 eSIM. You buy it through MobiMatter, so you top up in the MobiMatter app (Profile → My eSIMs → your eSIM → Top Up) or on MobiMatter's top-up page with your MM- order number.

A top-up is a new package with its own data and days, so it doesn't extend your plan. The package covering fewer countries is used first, then the one that expires sooner.

Yes, every 3 Hong Kong plan allows hotspot use. Neither 3 nor MobiMatter mentions a device limit.

Data your other devices use comes out of the same plan. The plans have no daily cap or throttling, so shared devices get full speed until the data runs out.

Sometimes: you buy 3 Hong Kong eSIMs through MobiMatter, so MobiMatter's refund rules apply. You can cancel before you install the eSIM, within 2 months of purchase, though the operator's fees may apply. Installing it starts the plan, so after that, changing your mind no longer qualifies.

Once installed, you only get money back if the eSIM doesn't work and MobiMatter's support can't fix it within 24 hours. Use MobiMatter's troubleshooting form.

Refunds go to your original payment method within 10–45 days.

Yes, you can buy a 3 eSIM in advance, but install it close to your trip: the days start the moment you install it, not when you arrive. You must install it within 2 months of purchase.

If you install it 1 to 2 days early, those days count toward your plan.

In Hong Kong itself, you must complete real-name registration with your passport. Outside Hong Kong, no registration is needed.