Esimflag eSIM – Review & Full Test 2026

🌍

Countries covered

200 countries

💶

Starting at

2,40 €

📶

Network

5G

📊

Data

Unlimited

❌

Calls/SMS

No

Unlimited data starting at €2.40/day in over 200 countries with automatic activation.

Reusable eSIM: recharge without reinstallation for repeated trips.

Keep your main number for calls and apps via unlimited data.

Responsive 24/7 support via chat, WhatsApp, and email.

Compatible with hotspot sharing and purchasing up to 10 eSIMs for groups.

Official ratings

Destinations & coverage

By region

Key points

✅

Advantages

  • ✓ Competitive and transparent prices with no hidden fees.
  • ✓ Simple installation via QR code before departure.
  • ✓ eSIM reuse and easy recharging via customer account.
  • ✓ 24/7 multilingual multichannel support.
  • ✓ Extensive coverage on the best local networks.
⚠️

Disadvantages

  • ✗ Data only; no calls or SMS included.
  • ✗ Connection sometimes unstable according to user feedback.
  • ✗ Slow or ineffective support in some cases.
  • ✗ Plans limited to 30 days maximum; a fair usage policy may apply on unlimited plans.
  • ✗ Refund delays reported as long.

Customer reviews

✓ Verified traveler

5/5

“

First-class experience. Easy installation, competitive pricing, fast internet even at sea in the British Virgin Islands.

March 1, 2026

✓ Verified traveler

5/5

“

I loved eSimFLAG in Istanbul, fast and smooth internet connection everywhere.

March 1, 2026

✓ Verified traveler

1/5

“

They stole €27 from me without providing the eSIM and refuse a refund. Avoid.

March 1, 2026

Description

eSimFLAG, a Telefónica service, offers unlimited data eSIMs starting at €2.40/day for over 200 global destinations. Automatic activation upon arrival, reusable for recharging without reinstallation, hotspot compatible. Perfect for solo travelers, families, or professionals avoiding high roaming fees and physical SIM cards, with 24/7 support via chat or WhatsApp.

How it works

Confirm that your device supports eSIM (iOS 15.6+, recent Android) via the eSimFLAG website.

Sign up on www.esimflag.com or via the app with your email address, password, and mobile number.

Select the country, number of days (1-30), and quantity of eSIMs (up to 10).

Pay by credit card or PayPal, then receive the QR code for installation.

Scan the QR code by going to settings > Cellular/Mobile Data > Add cellular plan.

The eSIM activates automatically in the destination country; activate mobile data and roaming.

In your customer area, add days or plans on the same eSIM.

⚠️ If it fails

✅ Check your device compatibility, ensure you have a stable internet connection and restart your device. Contact support if the problem persists.

✅ Toggle airplane mode on and off, select the eSIM for data, and enable roaming. Restart your device.

✅ A fair usage policy is applied after heavy use; check terms or purchase a new plan.

✅ Contact [email protected] or WhatsApp +34 696 88 68 82 with your order details.

Alternatives

FAQ

Choose the unlimited regional Europe plan (1-30 days), covering over 27 countries at a fixed daily price for unlimited data.

Yes, tethering is supported on compatible devices, subject to the partner network's fair usage policy.

iOS 15.6+ devices and recent eSIM-compatible Android phones are supported. Check the list on the eSimFLAG site before purchase.

Refunds are possible if the service is unusable; contact support within 90 days, although reported processing times are long.

Yes, use your physical SIM for calls and SMS and eSimFLAG for mobile data in dual SIM mode.

Data is unlimited; monitor the fair usage policy via the app or website to avoid slowdowns.

Yes, via your customer area > Your eSIMs > Buy a plan, without requiring reinstallation.

Company info

Legal name: Telefónica Móviles España S.A.U.

Address: Madrid, Spain

Email: [email protected]

Website: https://www.esimflag.com

Support

24/7

Accepted payments

Visa, Mastercard, PayPal, Apple Pay, Bizum

MyBestSim
Logo

Affiliate disclosure: MyBestSim uses affiliate links. If you purchase through our links, we may earn a commission — at no extra cost to you. This doesn't affect our rankings, which remain fully independent.

Yesim

World leader eSIM with 3M+ travelers. Coverage in 200+ destinations, instant activation and 24/7 support. Take advantage of our exclusive discount this month.

EXCLUSIVE PROMO CODE

-5€ with MYBESTSIM5
Orange Travel

Trusted global network with 300M+ customers. Enjoy an unlimited speed 4G/5G eSIM in 200+ destinations, with 24/7 human support and a 100% money-back guarantee.

ORANGE PROMO CODE

-5% with MYBESTSIM