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To get Wi-Fi while traveling, you have five options: hotel and public hotspots, a rented pocket Wi-Fi, your carrier's roaming, a local SIM, or a travel eSIM whose data you share from your phone's hotspot. Public Wi-Fi is free but shared and exposed; the other four cost money and keep working once you leave the building.
Key takeaways
- Public Wi-Fi is free, but evil twin hotspots and unencrypted networks are real risks: avoid banking on them and turn off file sharing
- Your phone can be the travel Wi-Fi: Personal Hotspot shares its cellular data, never a Wi-Fi network it is connected to
- A pocket Wi-Fi rental still suits groups and devices without cellular, at the cost of a box to collect, charge and return
- Roaming needs no setup but bills by the day; a local SIM is cheap per gigabyte but means a counter, often an ID check, and one SIM per country
- A travel eSIM installed before departure gives you mobile data from arrival, and hotspot use depends on the plan
Public and Hotel Wi-Fi: Free, Shared and Exposed
Hotel, airport and café networks cost nothing and need no preparation, which is why every traveler leans on them. Their limits are speed, since dozens of guests share one connection at breakfast and in the evening, and range, since they stop at the door.
Security is the bigger issue. The US Cybersecurity and Infrastructure Security Agency describes evil twin attacks, where someone sets up a hotspot that imitates a real public access point with a stronger signal, so devices join it and their traffic can be read. CISA's advice for public networks: connect only to access points using at least WPA2 encryption and switch off file and folder sharing. Keep banking and work logins for a mobile data connection or a network you trust.
Your Phone as the Travel Wi-Fi
If your phone has mobile data abroad, it can be the Wi-Fi for your laptop, tablet or a travel companion. On iPhone, the first-time setup sits under Settings > Cellular > Set Up Personal Hotspot. Apple's guide makes two points that matter on the road: Personal Hotspot only shares the iPhone's cellular connection, so you cannot rebroadcast a hotel's Wi-Fi to your other devices, and with two lines it shares whichever line is selected for cellular data. Instant Hotspot between Apple devices works when they are within about 10 meters (30 feet) of each other.
On Android, the Hotspot tile sits in Quick Settings; touch and hold it to choose Wi-Fi, Bluetooth or USB tethering. Google's help page notes you can share with up to 10 devices and that some carriers limit tethering or charge extra for it. On a Simsima eSIM, hotspot availability depends on the plan, so ask support before you buy if your laptop will rely on it.
Pocket Wi-Fi Rentals: When a Separate Box Still Helps
A pocket Wi-Fi is a small battery-powered router running on a local mobile network. It still has a place when several people share one connection, or when the devices that need internet, such as laptops and tablets without cellular, outnumber the phones. Rentals are commonly collected at the arrival airport and returned before departure.
The trade-offs are physical: one more device to charge every night, a pickup and a return deadline, and no connection for anyone who wanders away from the person carrying it. For a solo traveler with a recent phone, the phone's own hotspot does the same job.
Roaming and Local SIMs as Wi-Fi Substitutes
Roaming is the zero-effort option: your phone works on landing, and many carriers sell a day pass. Verizon's TravelPass, for example, costs $12 a day in most countries, with 5 GB of high-speed data before speeds drop to 3G. That is reasonable for two or three days and adds up fast over two weeks.
A local SIM gives the most data for the money on a long stay in one country. It means finding a store or airport counter, often showing a passport depending on local rules, and buying a new SIM at each border. If your phone has only one SIM slot and no eSIM support, your home number is out of reach while the local SIM is in.
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For most travelers with a compatible phone, mobile data on the phone, shared by hotspot when needed, covers what a separate travel Wi-Fi device used to do. The data usage calculator estimates how much you will need.
Hotel Wi-Fi and an eSIM Together
The setups that work best mix both: hotel or apartment Wi-Fi for streaming, backups and video calls in the evening, the eSIM for maps, ride-hailing and messages during the day. A few settings keep the split clean:
- Wi-Fi Calling on your home line, under Settings > Cellular, lets your usual number take calls over the hotel network without roaming
- Low Data Mode, under Settings > Cellular > Cellular Data Options > Data Mode, pauses automatic updates and background tasks when you are off Wi-Fi
- Apple's Connectivity Assist, in Wi-Fi settings on the latest iOS, uses cellular data when Wi-Fi is slow, but Apple says it is not used while the iPhone is roaming internationally
- Keep your home line's data roaming off throughout the trip, so nothing falls back to it
A Simsima eSIM that you delete cannot be reinstalled on your own, so turn the line off rather than removing it, and contact support, which usually replies within 24 hours, if something goes wrong.
Frequently Asked Questions
It depends on the router, walls and interference, so hotel Wi-Fi often fades a few rooms away. For a phone hotspot, Apple says devices using Instant Hotspot should be within about 10 meters (30 feet). Beyond the building, mobile data is the only way to stay connected.
For one or two people with recent phones, usually: there is nothing to carry or return, and the phone can share its data when the plan allows hotspot use. A pocket Wi-Fi still makes sense for a group sharing one connection or for devices without cellular.
Treat it with caution. CISA warns about fake hotspots that imitate public networks and recommends connecting only to networks using at least WPA2 and turning off file sharing. For banking, mobile data on your own phone is the safer choice.
Yes, if your plan allows it. On a travel eSIM, hotspot availability depends on the plan, and on iPhone with two lines the hotspot shares whichever line carries cellular data. Turn data roaming off on your home line so the hotspot never runs on it.
It depends far more on video than on anything else. Maps, messaging and browsing use little; streaming and video calls use most of it. The data usage calculator gives an estimate from your habits, and you can top up the same eSIM if you run short.
How Simsima works — Step-by-step guide to purchasing, installing, and activating your eSIM with the Smart Link
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eSIM-supported devices — Check whether your phone, tablet, or laptop is compatible with eSIM technology
Multi-country Trip Packs — Browse regional eSIM plans that cover multiple countries with a single profile
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Dimitri MorvanFounder
Founder of Simsima. A passionate traveler based in Barcelona, he helps travelers stay connected without breaking the bank on roaming fees.
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