The PuraSIM team researching and preparing for their next trip

The PuraSIM Blog

Guides, comparisons, and tips for staying connected while traveling: eSIM by destination, how to save on roaming, mobile compatibility, and everything you need before taking off.

Is international roaming expensive? Why you were charged and how to avoid it Roaming

Is international roaming expensive? Why you were charged and how to avoid it

If you received an unexpected roaming bill, it's not because you did something wrong: it's because your home operator charges y...

September 24, 2026·10 min
Read article → Roamless vs eSIM: what it is, how much it costs, and how it compares to PuraSIM Article

Roamless vs eSIM: what it is, how much it costs, and how it compares to PuraSIM

Roamless is an eSIM app with data, calls, and SMS in over 200 destinations and a rechargeable, non-expiring credit model. We re...

September 24, 2026·10 min
Read article → eSIM Kolet: what it is, how it works, and how much it costs (reviewed in 2026) Article

eSIM Kolet: what it is, how it works, and how much it costs (reviewed in 2026)

Kolet is a French travel eSIM with institutional funding and a one-time installation model with mandatory in-app top-ups. We re...

September 24, 2026·10 min
Read article → Which iPhones have eSIM? Complete Guide by Model Article

Which iPhones have eSIM? Complete Guide by Model

From the iPhone XS (2018) onwards, all models include eSIM, although many users have never activated it. This guide explains wh...

September 23, 2026·9 min
Read article → How to Delete an iPhone eSIM: Quick and Error-Free Guide Article

How to Delete an iPhone eSIM: Quick and Error-Free Guide

The step-by-step guide to deleting an eSIM from an iPhone via Settings, what to do when the profile gets stuck on "Activating,"...

September 22, 2026·10 min
Read article → T-Mobile USA eSIM: what coverage you actually get and when a different option makes sense for your trip Article

T-Mobile USA eSIM: what coverage you actually get and when a different option makes sense for your trip

T-Mobile does offer eSIM, but it's designed for customers opening a permanent line in the United States, not for those travelin...

September 21, 2026·9 min
Read article → Buy prepaid eSIM: honest comparison guide Article

Buy prepaid eSIM: honest comparison guide

Comparative guide to buying a prepaid eSIM: the five objective criteria that predict whether it will work for your trip (covera...

September 21, 2026·9 min
Read article → Hotspot: what it is, how it works, and when it's best to use it when traveling Article

Hotspot: what it is, how it works, and when it's best to use it when traveling

We explain what a hotspot is, how it works step-by-step on Android and iPhone, how much it can cost on a trip, how it compares ...

September 20, 2026·9 min
Read article → International roaming service: what it is, how it works, and when an eSIM makes sense Roaming

International roaming service: what it is, how it works, and when an eSIM makes sense

International roaming allows your cell phone to continue working when you leave your country, but how you're charged depends on...

September 19, 2026·11 min
Read article → How to activate international roaming: step-by-step guide Article

How to activate international roaming: step-by-step guide

If roaming isn't working for you right now, this guide gets straight to the point: the switches to check, in what order, and wh...

September 19, 2026·9 min
Read article → Local SIM or eSIM: What It Is and How It Works for Travel Article

Local SIM or eSIM: What It Is and How It Works for Travel

What a local SIM is, how it differs from an eSIM, and how the complete process works to have mobile data at your next destinati...

September 19, 2026·11 min
Read article → eSIM International Roaming: What It Is and How It Works Article

eSIM International Roaming: What It Is and How It Works

International roaming depends on agreements between operators that do not always cover your destination. We explain what it is,...

September 18, 2026·10 min
Read article → What Is eSIM io and How Does an eSIM Work: A Step-by-Step Guide Article

What Is eSIM io and How Does an eSIM Work: A Step-by-Step Guide

"eSIM io" is just a brand name: all travel eSIMs work the same way. This guide explains step-by-step how to purchase, install, ...

September 18, 2026·10 min
Read article → Is there WiFi at Madrid Airport? The complete guide to staying connected Article

Is there WiFi at Madrid Airport? The complete guide to staying connected

Madrid-Barajas Airport does have free Wi-Fi in its four terminals, but coverage ends at the building's exit. We explain how to ...

September 17, 2026·10 min
Read article → International roaming: how it works, how much it costs, and what alternatives exist for traveling Article

International roaming: how it works, how much it costs, and what alternatives exist for traveling

What international roaming is, how to activate it before traveling, what factors drive up its cost, and why more and more trave...

September 17, 2026·11 min
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