When a Viasimo eSIM
isn't the right choice
Most travel sites only tell you why to buy. These are the trips where our product is the wrong tool, written plainly so you can rule us out in a minute rather than find out after you land.
01 You need a local phone number
Our eSIMs are data-only. You keep your own number for calls and texts, but you do not get a local one. If you need a local number to receive an SMS code from a local bank, register for a domestic delivery or ride-hailing app, or give a landlord a contact number, buy a local SIM at the airport instead. Data-only is the right product for most travellers and the wrong one for this.
02 Your home plan already covers the trip
If you are an EU resident travelling within the EU, roam-like-at-home means your domestic allowance already works at no extra cost. Several US plans include Mexico and Canada, and some UK plans still include a list of EU destinations. Check your existing plan before you buy anything from us. If it is covered, you do not need us for that trip.
03 You are staying longer than about a month
Travel eSIMs are priced for trips, not residency. Past roughly four weeks in one country, a local prepaid or postpaid plan is almost always cheaper per gigabyte, and it comes with the local number that long stays tend to require. Buy from us for the first few days while you get set up, then switch.
04 You want to replace home broadband
If you plan to tether a laptop all day, run video calls for work, or use the connection as a household's only internet, a travel eSIM is the wrong economics. Our plans suit phone-shaped usage — maps, messaging, social, some streaming. Heavy tethering will burn through a plan faster than you expect and cost more than a local unlimited option.
05 Your phone is locked or has no eSIM support
A carrier-locked handset can refuse a second profile, and plenty of phones still ship without eSIM at all. Check your device before buying — if it is not compatible, no eSIM from us or anyone else will work, and a physical local SIM is your answer.
06 You are going somewhere our host network is weak
In a handful of markets the network we ride on is 3G-only, and in mountainous or island regions coverage thins out regardless of provider. Each destination page states the actual operators and the actual radio technology for that country. If it says 3G, believe it — that is what you will get, and a local SIM on a different operator may serve you better.
If none of those apply
Then a travel eSIM is probably the cheapest and least annoying way to have data the moment you land. Every destination page lists the real host operators and the radio technology you will actually get there, so you can check the specifics before you buy.
Buying honestly
Why would an eSIM company tell me not to buy?
Because the alternative is a refund request and a bad trip. The cases on this page are the ones our support team sees most often when a purchase goes wrong, and every one of them is predictable before checkout. We would rather lose the sale than sell you something that cannot do what you need.
Can I use a Viasimo eSIM and a local SIM at the same time?
Yes, and for some trips that is the best setup. Keep your home SIM for your number, add a local SIM if you need a local number, and use the eSIM for data. Most modern phones handle multiple profiles; you choose which line carries data.
How do I know if my home plan already covers my destination?
Check your carrier's roaming page or app before you travel. Look for the destination by name and for the words included or at no extra cost rather than a daily rate. If your carrier charges a daily roaming fee, a travel eSIM is usually cheaper; if the destination is genuinely included, it is not.
What if I buy and then find out it was the wrong choice?
Read our refund policy before you buy — digital content that has been delivered and activated is generally non-refundable, which is exactly why this page exists. If you are unsure whether our product fits your trip, contact support first and ask.