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.
Roaming
Movistar roaming abroad — Price and alternatives 2026
In short: Movistar roaming in the EU is included in most plans, but with a fair use data limit (approximately between 15 GB and...
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Comparisons
Why Holafly is so expensive — and what alternatives exist
In short: Holafly is more expensive because it invests heavily in brand, support, and marketing, and passes these costs on in i...
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Destinations
eSIM for Mexico 2 Weeks — Connected without roaming
In short: For a 2-week eSIM in Mexico, ideally aim for 15-20 GB with 30-day validity: this covers maps, WhatsApp, social media,...
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Destinations
eSIM for Thailand 10 days — Which plan to choose
In short: for 10 days in Thailand, the eSIM you need depends on your itinerary: if you're traveling between Bangkok, Chiang Mai...
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Comparisons
eSIM for Backpacking in Europe — Stay Connected Without Overspending
Executive Summary For a budget backpacker, the best connectivity option in Europe is a 10–15 GB regional eSIM valid for 30+ Sch...
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Destinations
eSIM for Europe 30 days — The best option for a month of travel
In short: For a 30-day trip to Europe, a 30-day Europe eSIM with 30-50 GB covers most itineraries without the need for top-ups....
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Compatibility
How to activate eSIM on iPhone 15 — with and without QR code
In short: To activate an eSIM on your iPhone 15 without a QR code, go to Settings > Cellular > Add eSIM, choose "Enter De...
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Compatibility
eSIM on Samsung Galaxy — How to Install and Activate Step-by-Step
In short: to install an eSIM on a compatible Samsung Galaxy (S21 and later, Z Fold 3+, Z Flip 3+), go to Settings > Connecti...
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Compatibility
How to transfer your eSIM to a new phone — iPhone and Android
In short: Yes, you can transfer an eSIM to a new mobile, but the process varies depending on the manufacturer and carrier. On i...
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Compatibility
eSIM and Physical SIM at the Same Time: How to Use Both Without Losing Your Number
In short: Yes, you can have an active eSIM and physical SIM at the same time—that's how dual SIM with eSIM works—on any compati...
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Destinations
eSIM Japan 7 Days — Choose Your Data Plan & Activate Easily
In summary: for a 7-day Japan eSIM, a 10 GB plan with a Docomo or SoftBank network comfortably covers maps, social media, messa...
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Comparisons
The Best eSIM for Travel in 2026 — A Guide to Choosing Wisely
Direct Answer: The best eSIM for travel is one that covers your destination with good speed, competitive price per GB, and inst...
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Comparisons
Airalo vs. PuraSIM: Which is the Best eSIM for Travel in 2026?
Direct Answer: Airalo is the most recognized name in travel eSIMs, but PuraSIM offers more competitive prices in the most sough...
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Compatibility
eSIM on iPhone: How to Install and Activate It Step by Step
In short: To install an eSIM on your iPhone, go to Settings → Cellular → Add eSIM and scan the QR code that your carrier or Pur...
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eSIM guides
eSIM card: what it is, how it works, and what it's for
In short: An eSIM card is a digital SIM embedded in your mobile that you can activate instantly, without needing a physical car...
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eSIM guides
How to Buy an eSIM Online — Step-by-Step Guide
In short: You can buy an eSIM online at PuraSIM in less than 3 minutes. Choose your destination, select the data plan, pay, and...
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Comparisons
Holafly vs PuraSIM: an honest comparison for travelers in 2026
In summary: in the Holafly vs PuraSIM comparison, Holafly bets on "unlimited" data plans in a single country, with possible spe...
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Problems and solutions
Common Problems When Activating an eSIM and How to Fix Them
In summary: common eSIM problems almost always boil down to three causes: the wrong data line selected on the phone, data roami...
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eSIM guides
How to use WhatsApp with an eSIM abroad
In short: WhatsApp works with any data eSIM without any special configuration: the app only needs internet, it doesn't care if ...
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eSIM guides
How much data do you need for your trip? A guide by traveler type
In short: to know how much data you need for travel, calculate your daily usage (300-500 MB for moderate use), multiply it by t...
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Comparisons
eSIM vs Physical SIM: Differences, Advantages & Which One to Use When Traveling
In short: the eSIM is a chip integrated into the phone, not a removable card: it activates with a QR code in seconds, stores se...
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Roaming
eSIM vs roaming: which is better for travel?
In short: if you travel within the European Union with a normal Spanish rate, roaming is already included and you don't need an...
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Roaming
How to avoid roaming when traveling: complete guide 2024
In short: to avoid roaming when traveling, the most practical option is to install a data eSIM for your destination before leav...
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