eSIM Cards
Updated in April 2025
Best eSIMs for Japan
Stay connected wherever your trip takes you. Traveling no longer means going offline. With an eSIM, you get instant internet access from the moment you land — no roaming fees, no hassle, and flexible data plans that work for you. Explore the best eSIM providers and choose the perfect option to enjoy your trip without worries.
Excellent
9.8
/10
Good
8.9
/10
Good
8.2
/10
1. Holafly
Top strength: Unlimited data and five-star support
Overview: Holafly offers unlimited data eSIMs for international travel in 200+ destinations, 24/7 customer support, and monthly subscription options.
Refunds for tech issues and accidental purchase, (within 6 months)
24/7 live chat, WhatsApp, and email support
5G where possible
3 monthly eSIM subscriptions
Excellent
9.8
/10
3. Jetpac
Top strength: Travel perks included
Overview: Jetpac sells travel eSIMs with bonus perks like insurance or lounge access, aimed at frequent flyers needing coverage and extras.
Pre-install or tech issue refunds (within 30 days)
FAQ, WhatsApp, email, live chat support
5G in 4+ countries; 4G/LTE elsewhere
No subscription, but easy wallet top-up system
Good
8.9
/10
5. aloSIM
Top strength: Low-cost, flexible data plans
Overview: aloSIM is a budget-friendly eSIM service offering no-contract plans in 200+ locations with multilingual support.
Refunds for installations and connection issues (within 30 days)
Chat and email support
5G in major countries, LTE elsewhere
No subscription
Good
8.2
/10
2. Ubigi
Top strength: Regional and vehicle eSIM plans
Overview: Ubigi provides eSIM data plans in 200+ locations, targeting travelers with flexible regional plans and decent 5G access across devices.
Refunds for tech issues (within 14 days)
Contact form, FAQ, live chat support
5G in 57 destinations, 4G elsewhere
No subscription
Good
7.8
/10
4. Roamless
Top strength: Pay per MB of data
Overview: Roamless is a global, pay-as-you go eSIM service with coverage in 200+ destinations.
No refunds
Email, FAQ, and in-app support
5G in major countries, LTE elsewhere
Pay-as-you-go with easy wallet top-up system
Fair
6.9
/10
6. Numero eSIM
Top strength: Virtual phone number and calls
Overview: Numero eSIM focuses on combining data plans with virtual phone numbers, appealing to users who want calling features alongside mobile data.
No refunds
Email, ticket, and social support
Unclear data speeds
No subscription
Fair
6.8
/10
How do we choose the best?
At Roami, we review every option carefully so you can simply pick the one that fits you best. We look at speed, ease of use, customer support, and more — because price isn’t everything (though we check that too).
Since providers update their services regularly, we keep our recommendations fresh and relevant. Just keep in mind that prices can change, so it’s always a good idea to double-check before making a decision.
Our mission is simple: to make sure you never
have to ask, “What’s the WiFi password?”
again. All our tips come straight from personal
experience — because we’d never recommend
something we haven’t put to the test ourselves.
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Reviews
Holafly review: buying and
using an international eSIM
Airalo eSIM Review: data plans
without roaming charges
Flexiroam eSIM review in 2025
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