Best International Data Plan 2026: 5 Services Compared
WriterPickly Editorial
Updated 2026-09-10
Google Fi, Airalo eSIM, Verizon TravelPass, T-Mobile Go5G Plus, and Holafly Unlimited eSIM — compared for international data. Coverage, cost, and which service for which traveler.
Quick answer
For most frequent travelers, Google Fi is the pick — it works in 200+ countries with no roaming fees on most plans and a single data rate, so there are no surprise bills. Airalo's eSIM marketplace covers 200+ destinations and suits single-country trips where you pay only for what you use, Verizon TravelPass costs $10 a day with no new signup, and T-Mobile Go5G Plus includes 5GB monthly in 215+ countries.
📋How we compared
This comparison is desk research. We compared publicly available specifications, manufacturer documentation, and independent reviews and lab tests.
🏆 Best universal: Google Fi is the right pick for frequent international travelers. Works in 200+ countries with no roaming fees on most plans, single rate for data (no surprise bills), uses T-Mobile + UScellular networks.
Top picks ↓Which one is right for you?
Related articles
1★ Best Pick🏆 Best universalGoogle Fi
Sign up at fi.google.com. Phone must be Fi-compatible (most modern phones).
Google Fi is the right pick for frequent international travelers. Works in 200+ countries with no roaming fees on most plans, single rate for data (no surprise bills), uses T-Mobile + UScellular networks. Best for digital nomads or US travelers visiting many countries.
Pros
- ✓200+ countries with no add-ons
- ✓Single data rate worldwide
- ✓Multiple plan tiers
Cons
- ✗Limited US carrier coverage (T-Mobile + UScellular only)
- ✗Higher monthly fee than carrier-add-on options
2🌐 Best eSIM marketplaceAiralo eSIM Marketplace
Install Airalo app. Choose country, purchase package, install eSIM via app.
Airalo eSIM Marketplace is the right pick for travelers who want country-specific eSIMs. 200+ destinations, install via app in 5 minutes, pay only for what you use. Best for travelers who don't want to change their primary plan.
Pros
- ✓200+ destinations available
- ✓Install via app in 5 minutes
- ✓Pay per package (no commitment)
Cons
- ✗Country-specific (need new package per country)
- ✗Doesn't preserve US number
3🇺🇸 Best for VerizonVerizon TravelPass
Existing Verizon customers — enable via Verizon app. $10/day automatic when phone connects abroad.
Verizon TravelPass is the right pick for existing Verizon US customers. $10/day for unlimited data abroad, use your existing US plan, no separate signup. Best when you have unlimited US plan and travel occasionally.
Pros
- ✓$10/day unlimited data abroad
- ✓Use existing US Verizon plan
- ✓Keeps US number active
Cons
- ✗$10/day adds up on long trips
- ✗Only for existing Verizon customers
Subscribe to our newsletter
Occasional updates and new releases — no spam.
4🇺🇸 Best for T-MobileT-Mobile Go5G Plus
Existing T-Mobile customers on Go5G Plus or higher — works automatically abroad.
T-Mobile Go5G Plus is the right pick for existing T-Mobile customers. 5GB/month free data in 215+ countries, included in plan, no extra fees. Best US plan with abroad coverage built in.
Pros
- ✓Free 5GB/month in 215+ countries
- ✓Included in plan
- ✓No extra fees
Cons
- ✗$90/mo plan required
- ✗5GB cap (more needed for heavy users)
5🌐 Best unlimited eSIMHolafly Unlimited eSIM
Sign up at esim.holafly.com. Daily plans available, install via eSIM activation.
Holafly Unlimited eSIM is the right pick for heavy data users. Truly unlimited data in 200+ countries (no throttling, no caps), daily or weekly plans. Best for travelers who need lots of data without worrying about caps.
Pros
- ✓Truly unlimited data (no throttling)
- ✓200+ countries
- ✓Daily plans available
Cons
- ✗$6-20/day adds up on long trips
- ✗Doesn't preserve US number
eSIM vs. carrier add-on vs. dedicated plan
Dedicated plan (Google Fi, T-Mobile): your primary US plan works abroad with no add-ons.
Carrier add-on (Verizon TravelPass): pay $10/day for unlimited data when abroad.
eSIM (Airalo, Holafly): install country-specific package alongside primary plan.
Best for each use
Best universal: Google Fi ($20-80/mo). Works in 200+ countries, no add-ons.
Best eSIM marketplace: Airalo ($5-30/package). 200+ destinations.
Best Verizon US customers: Verizon TravelPass ($10/day). Use existing plan abroad.
Best T-Mobile US customers: T-Mobile Go5G Plus ($90/mo). 5GB/month free in 215+ countries.
Best unlimited eSIM: Holafly ($6-20/day). Truly unlimited data.
Frequently asked questions
eSIM vs. physical SIM?▼
Should I just rely on Wi-Fi?▼
Will I lose my US number abroad?▼
What's typical data usage abroad?▼
Check the details of the products in this article
- Google Fi$20/mo〜$80/moReference price
- Airalo eSIM Marketplace$5-30/pkgReference price
- Verizon TravelPass$10/dayReference price
- T-Mobile Go5G Plus$90/moReference price
- Holafly Unlimited eSIM$6-20/dayReference price
Prices change. Check the retailer for the current price.
Comments & questions
Discussion happens on nattzy, our community forum. Sign in with Google to post — it takes a second.
View the discussion thread on nattzy ↗
Still deciding? Ask the community your own question — Post a question on nattzy ↗
