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EsimFlux
Traveler preparing mobile data on a phone before departure
Prepaid Travel Data · Digital Delivery· 5G / LTE Ready

Best Travel eSIM for Your Next Trip

Compare prepaid travel data for the USA, Europe, Japan and more. Choose your destination, check compatibility, and get your eSIM online.

Where do you need internet?

  • Instant QR delivery
  • No contracts or roaming fees
  • Instant QR activation

Networks vary by destination and package

  • SoftBank
  • Verizon
  • SK Telecom
  • KDDI
  • Telstra
  • Vodafone
  • AT&T
What is an eSIM - Digital SIM on Smartphone

What is an eSIM?

An eSIM is a digital SIM built into a compatible device. You can install a travel data plan without inserting a physical SIM card. Choose coverage for your destination, then follow the plan’s installation and activation instructions.

Keep your primary number

WhatsApp uses your internet connection and keeps your existing account number. Your primary SIM can still receive calls and SMS, subject to your home carrier’s coverage and charges.

Zero airport kiosks or queues

No tiny ejector pins, no losing your plastic SIM card, and no waiting in line after a long flight.

Travel data without the usual hassle.

Buy before departure, install from your account, and keep your regular SIM in your phone.

Fast local networks

Connect to reliable 4G/5G partner networks in your destination without changing your main SIM.

Prepaid pricing

Know the full cost before checkout. No contracts, roaming add-ons, or surprise overage fees.

Instant QR delivery

Your eSIM is delivered inside your account after payment, ready to install before departure.

Secure by design

Keep your home number active for banking OTPs while your travel data runs on the eSIM.

Flexible trip lengths

Choose short city-break plans, longer stays, or top up when your data runs low.

Device friendly

Works with modern unlocked iPhone, Samsung, Pixel, iPad, and other eSIM-ready devices.

Will an eSIM Work on Your Phone?

Many recent phones support eSIM. Check your exact model and sales region, and confirm your phone is carrier unlocked.

Full device list
Requirement: Phone must be carrier-unlocked.
Keep your WhatsApp number while using travel data.

From checkout to connected in minutes.

A clear three-step flow for travelers who want data ready before the plane lands.

01How it works

Pick your destination

Search the country, compare data and validity, then choose the plan that matches your trip.

Compare before you buy

Fixed data
One total data allowance for the plan’s validity period.
Daily allowance
Check daily high-speed data, fair-use limits and your trip length.
View current Japan plans

See current prices, duration and availability on the country page.

02Instant Provisioning

Checkout securely

Pay by card, PayPal, crypto, or wallet where available. The order stays inside your account.

iPhone 1-Tap
Android Setup

eSIM Installed

Profile ready on your device

Data Roaming
Turn ON at destination
03Local 5G / LTE

Install the QR

Scan the QR code, keep your main SIM active, and switch mobile data to your eSIM when you arrive.

🇯🇵

Example eSIM account

Example connection

Active
Remaining Data8.5 / 10 GB
Validity: 30 daysExpires in 28 days
WhatsApp uses your travel data
Country & Regional Plans
QR installation on compatible devices
Zero Roaming Surprise Fees
Browse All Destinations
Official Mobile App4.8 on Google Play

Your eSIM, Always in Your Pocket

Download the EsimFlux Android app to buy, track real-time data usage, and top up travel eSIM plans across 200+ destinations in seconds.

Live Data Tracking

Check used & remaining GB across all active plans in real time.

Instant Top-Ups

Add more data or extend validity with one tap—no new QR needed.

200+ Destinations

Connect to 4G/5G local networks the moment your plane lands.

GET IT ONGoogle Play
Apple iOSApp Store
Coming Soon
My eSIMsSync
Active (2)
Archived (1)

United States

5 GB · 30 days · 5G / 4G

Active5G / 4G
2.3 GB used2.7 GB left

Valid until 24 Sep 2026

View details
Manage eSIM

Japan

3 GB · 15 days · 5G

Active5G
1.1 GB used1.9 GB left

Valid until 10 Sep 2026

View details
Manage eSIM

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Before you buy a travel eSIM

Check that your exact phone model supports eSIM and is carrier unlocked. Compare the countries covered, data allowance, validity, activation rules, hotspot restrictions and total price on the current plan page. Coverage and speeds depend on the local network, your device and location; a 5G label does not guarantee 5G everywhere. Read the installation instructions before activating, because the validity start rule can differ between packages.

Who provides this information?

eSIMFlux is operated by SAASYMO LTD. This is our store, and we earn revenue from plans sold here. Our product guidance uses catalog information and manufacturer documentation; it is not an independent ranking or a claim of hands-on network testing. Use live plan details for current prices and availability. Manage purchases through your web account.

Guidance updated .

Editorial policy and corrections

Find eSIM plans for your next destination

Choose a country to compare data allowances, validity and current prices. For a trip across borders, check a regional or international plan and confirm that every stop is included in its coverage.

Questions before you buy

Straight answers about compatibility, installation, activation, and data use.

What is an eSIM?

An eSIM is a digital SIM built into many modern phones. You install a mobile plan by scanning a QR code instead of inserting a plastic SIM card.

Will an EsimFlux plan work with my phone?

Your phone must support eSIM and be unlocked from its carrier. Check the compatibility page before buying, especially if your device was purchased through a mobile operator.

When does my plan start?

Activation rules can vary by plan. Most travel plans begin when the eSIM first connects to a supported network, while some have a fixed activation window. The plan page shows the applicable validity details before checkout.

Can I keep my regular SIM and WhatsApp number?

Yes. On a dual-SIM phone, your regular line can stay active for calls and messages while the EsimFlux eSIM handles mobile data. Your WhatsApp account stays linked to its existing number.

How much data should I choose?

For maps and messaging, 1–3 GB may cover a short trip. Social media and frequent browsing usually need more, while video calls, streaming, or hotspot use can consume data quickly.

Can I install the eSIM before departure?

Yes, and installing it while you still have reliable Wi-Fi is usually easier. Keep the travel line turned off until the plan's activation instructions tell you to enable it.

Can I add more data later?

Compatible eSIMs can be topped up from your dashboard. If a plan does not support top-ups, the eSIM detail page will show that clearly.

Can I use hotspot or tethering?

Hotspot availability depends on the selected plan and local network. Check the plan details before purchasing if sharing data with a laptop or another phone is important.

How do I receive the eSIM after payment?

After payment and provider fulfillment, the installation QR code and activation details appear in your account. EsimFlux also sends the order and ready-to-install emails to your account address.

What if I need to cancel or request a refund?

Eligibility depends on whether the eSIM has been installed, activated, or used. Review the refund policy and contact support with your order number so the team can check the order status.

How do I choose the best eSIM for Italy?

Choose an eSIM for Italy by comparing your trip length, expected data use, supported networks and total price. Check the Italy plan page for current allowances and validity. If you will also visit Switzerland, Spain or Germany, compare regional coverage and confirm that each country is included.

What should I check when choosing the best eSIM for China?

Before buying an eSIM for China, check your phone's exact model and regional variant, the plan's supported networks, activation rules and data allowance. Do not assume that a plan includes Hong Kong, Macao or Taiwan, or guarantees access to particular apps and websites; review the selected package details.

Can a Taiwan eSIM also cover other destinations in Asia?

A Taiwan eSIM covers the destinations listed in its package. For a trip that also includes Malaysia, Singapore, South Korea, the Philippines or Vietnam, compare an Asia regional eSIM with separate country plans. Confirm every stop in the coverage list before purchase.

Should I choose a country or international eSIM plan?

Country eSIM plans are worth comparing for a single destination. For several countries, an international eSIM may make data management simpler if its coverage includes your full itinerary. Compare total price, data allowance and validity against separate plans, and check whether the same eSIM profile can be used at every stop.

Still have questions?

Visit the help center or contact support if you need a hand.

Get travel data without the airport SIM-card scramble.

Choose a destination, install the eSIM QR, and manage top-ups from one account on mobile or desktop.