You land in a new country, need directions to your accommodation, and realize you have no mobile internet. Do you buy a local SIM, activate roaming, or find Wi-Fi? There is no single answer for every traveler. The right setup depends on where you are going, how long you are staying, your phone and how much data you actually need.
This practical guide compares five ways to get online abroad: travel eSIM, local SIM card, pocket Wi-Fi, international roaming and public Wi-Fi. We’ll explain what each one does well, where it falls short and what to check before your next trip.
How to get internet abroad: the quick answer
- Check your existing roaming allowance. You may already have internet included at your destination.
- Consider a travel eSIM if you have an unlocked compatible phone and want mobile data arranged before arrival.
- Choose a local SIM if you need a local phone number or are staying longer.
- Compare pocket Wi-Fi with phone tethering if several devices need to connect.
- Use public Wi-Fi as a backup, not necessarily your only connection.
Five ways to stay connected while traveling abroad
| Option | Best suited to | Main limitation |
|---|---|---|
| Travel eSIM | Travelers who want data without visiting a SIM shop | Requires a compatible, unlocked device; often data-only |
| Local SIM or local eSIM | Longer visits or travelers who need a local phone number | Registration and shopping may take time |
| Pocket Wi-Fi | Families or several devices that stay together | Extra device to charge and carry |
| Home-operator roaming | Travelers whose plan already includes the destination | Can be expensive outside included destinations |
| Public Wi-Fi | Occasional use in hotels, airports and cafés | Unavailable while moving; reliability varies |
1. Travel eSIM: mobile internet without swapping a physical SIM
An eSIM is a digital mobile network profile installed on a compatible phone or tablet. Rather than inserting a plastic SIM card, you download the profile using a QR code or manual activation details, usually over Wi-Fi. You can often prepare it before departing and select it for mobile data once you arrive.
This is especially practical for short holidays, airport arrivals and trips that cross multiple borders. For example, eSimity offers prepaid regional data plans for Europe. Always inspect the individual country list, available networks, activation terms and hotspot conditions: a regional plan name does not guarantee every nearby country is covered.
Advantages and limitations of travel eSIMs
- Advantages: digital delivery, no physical card to lose, and the option to keep your usual phone line active on supported dual-SIM devices.
- Limitations: many travel eSIMs provide data but not an ordinary local phone number, calls or SMS; some phones are locked or do not support eSIM.
- Before buying: check destination coverage, validity start, total data, tethering support and whether your device is unlocked.
A travel eSIM is not automatically the lowest-cost option. If your domestic plan already includes enough roaming data, buying another package may be unnecessary.
Hotspot and unlimited data: If you plan to share mobile internet with a laptop or another person, check the specific plan’s tethering terms. Some “unlimited” offers have separate hotspot allowances or fair-use thresholds that reduce speed, while others permit unrestricted sharing. Unlimited data does not necessarily mean unlimited full-speed data.
For trips across several borders, this country vs. regional eSIM guide explains the trade-offs in more detail. It is one useful comparison alongside local SIMs and roaming, not a reason to buy extra data you do not need.
2. Local SIM card: useful when you need local calls or SMS
A local SIM is a mobile plan purchased from an operator in the country you are visiting. It may come as a physical card or a local eSIM, depending on the provider and device. Some offers include a domestic phone number, voice calls, SMS and mobile internet. This can matter for longer stays, local appointments or services that require an ordinary phone number.
You might find SIM shops at airports, in shopping areas or at mobile operator branches. Prices, opening hours and availability vary, and some countries require identification or registration before activation. Airport convenience does not guarantee the best price.
Choose this route when you need local number functionality or when the total cost is attractive for a long stay. Confirm that your phone is unlocked, that it supports the SIM format and whether using it affects access to your regular number.
Does the best option change by country?
Yes. In parts of Europe, eligible travelers may already have roaming included, making an extra SIM unnecessary. In the United States, compare local prepaid plans with travel eSIM offers. In destinations such as Thailand or Indonesia, or in some African countries, local SIM packages can offer competitive rates, particularly for longer trips. But coverage, tourist registration rules and prices vary widely. It would be misleading to claim that an eSIM is always cheaper in Europe or that a local SIM is always several times cheaper in Asia or Africa.
Compare total prices for the same length of stay and usable data allowance. Also consider registration, coverage outside cities, airport markups, and whether you need a local phone number.
3. Pocket Wi-Fi: a portable connection for several devices
Pocket Wi-Fi is a small cellular router that creates a private Wi-Fi network for devices near it. It is commonly rented or purchased with a separate mobile data plan. A family can connect phones and a laptop without each device requiring its own plan, provided everyone remains close to the router.
The trade-offs are easy to overlook: the router needs charging, mobile network coverage and a sufficiently large data allowance. If the group splits up, people away from the router lose that connection. Rental deposits, returns and delivery can add costs.
Before paying for a separate router, check whether your phone and data plan allow personal hotspot. For many travelers, phone tethering is a simpler alternative; heavy laptop or video use can, however, drain both data and battery quickly.
4. International roaming: convenient when your existing plan covers it
Roaming lets your home mobile operator connect your phone to a partner network overseas. You keep your existing SIM and phone number. The important question is whether your destination is included in your allowance, and how much data you can use without extra charges.
For eligible mobile subscriptions, EU/EEA Roam Like at Home rules allow the use of domestic services across covered destinations, subject to fair-use conditions. Operators may apply data limits to some plans, particularly unlimited or very low-cost offers. Read the European Commission roaming guidance and your own operator terms before assuming every destination is included.
Outside the countries covered by your contract, roaming charges can be significantly higher. Check any travel passes, data caps, speed limits and usage alerts before departure. If you select a travel eSIM for internet, review the data roaming and automatic data switching settings on your home line to avoid accidental use.
5. Public Wi-Fi: a useful backup, but not a full mobile solution
Hotels, cafés, airports, train stations and public buildings may offer complimentary Wi-Fi. It can help with uploading photos, downloading maps or doing work from a stationary location. It is less useful when navigating unfamiliar streets, changing trains or traveling through areas without hotspots.
Modern HTTPS websites and encrypted apps protect much of your data even on public networks, so public Wi-Fi is not automatically unsafe. Still, verify the hotspot name with the venue, keep software updated and avoid suspicious captive portals or unencrypted login pages. The FTC guide to public Wi-Fi explains how to use shared networks more safely.
Which internet option makes sense for your trip?
The best connection depends on your travel plans. Use the questions below and the comparison table to find an option that fits your needs.
- Does your current plan include sufficient roaming at your destination? If yes, compare that included allowance before buying anything else.
- Do you need a local phone number for ordinary calls or SMS? Compare a local physical SIM or local operator eSIM that includes a number, and check identification requirements.
- Will several people or devices share one connection? Compare a phone hotspot with pocket Wi-Fi, including battery life, tethering rules and whether everyone will stay together.
- Are you traveling to several countries? Compare a supported regional eSIM with home-operator roaming, and verify the list of included countries.
- Are you staying longer than a short holiday? Compare the full cost of local prepaid plans and travel eSIMs for your entire stay.
| Travel scenario | Good starting point | Why |
|---|---|---|
| Weekend city break | Existing roaming or a travel eSIM | Simple setup with mobile access |
| Several countries on one itinerary | Included roaming or a regional eSIM | One arrangement across eligible borders |
| Month-long stay needing local calls | Local SIM or local operator eSIM | Potential access to a local phone number |
| Family traveling together | Phone hotspot or pocket Wi-Fi | Compare shared-device cost and convenience |
| Working remotely | A generous-data mobile plan | Hotspot policy, coverage and reliability matter |
| Occasional use at accommodation | Hotel Wi-Fi plus an offline backup | May reduce extra spending |
How much mobile data do you need abroad?
Your normal habits are a better guide than a universal daily estimate. Maps and messages often use comparatively little data, while video streaming, cloud backups and laptop tethering can consume it much faster. Treat these as rough planning ranges rather than promises.
| Typical travel use | Planning range | Activities |
|---|---|---|
| Light use over a weekend | 1–3 GB | Navigation, messages and reservations |
| A week of regular sightseeing | 5–10 GB | Frequent maps, browsing and social updates |
| One to two weeks of active use | 10–20 GB | More uploads, video and browsing |
| Remote work or shared hotspot | 20 GB or more | Video meetings, laptops and large transfers |
Check your phone’s recent mobile data usage and download maps, documents, tickets and entertainment over trusted Wi-Fi before leaving. Turn off automatic cloud-photo uploads or app updates if you have a limited allowance.
Does using two SIMs drain your phone battery?
Using two active mobile lines can increase power use in some situations, especially when signal is weak, but it does not automatically double battery consumption. Navigation, background apps, screen brightness and network conditions can also have a substantial effect.
For iPhone users, Apple explains that 5G Auto is designed to save battery by switching to LTE when 5G offers little benefit. You can select LTE only when speed is less important than conserving power, if your phone and operator offer that setting. There is no reason to disable 5G Auto by default.
Before you fly: a practical connectivity checklist
- Check compatibility. Verify that the phone is unlocked and supports the SIM type you plan to use.
- Review your mobile contract. Look at roaming coverage, data allowances and the price of out-of-plan usage.
- Check network reach. Rural routes, islands, mountain passes and train tunnels may have weaker service.
- Compare total costs. Include the duration, taxes, activation fees, router rental and data limits, where applicable.
- Prepare your setup. Install an eSIM over Wi-Fi if permitted or find out where to buy a local SIM.
- Save offline essentials. Download your accommodation address, transport tickets, maps and emergency contacts.
- Select the intended mobile-data line. Review data roaming and automatic switching settings to avoid surprises.
Can you keep your regular phone number and WhatsApp?
Often, yes. On a compatible dual-SIM phone, a travel eSIM can carry mobile data while your regular line remains available for standard calls and SMS. WhatsApp generally continues using the number already registered to the account, even when internet access comes from another SIM. You typically do not need to change your WhatsApp number.
Remember that ordinary calls or SMS on your home line can still incur roaming charges. If banking or another service sends verification codes to that line, check that it stays active and can receive them.
What to do if your internet is not working after landing
- Make sure the right SIM or eSIM line is enabled and selected for mobile data.
- Confirm that the destination is included, the plan is active and data remains.
- Follow the provider’s instructions on whether data roaming must be enabled on the travel eSIM.
- Turn Airplane Mode on briefly and then off; allow the phone to reconnect.
- Check any provider-specific APN or network selection instructions.
- Connect to trusted Wi-Fi to contact support if necessary. Do not delete an installed eSIM unless support instructs you to.
If you take frequent trips rather than one long holiday, you can also compare prepaid bundles with reusable data balances. Our guide to Pay As You Go travel eSIMs explains how that model works and what to check before choosing it.
Frequently asked questions about internet abroad
What is the easiest way to get internet when traveling abroad?
Check your existing roaming allowance first. If it does not cover your needs, compare travel eSIMs and local SIM cards for your destination.
Is an eSIM better than a physical SIM for travel?
An eSIM offers convenient digital setup, while a local physical SIM can be better when you need a local phone number or lack eSIM support.
Can I use a travel eSIM in several countries?
Yes, if your specific regional or global plan lists all of those countries. Always check the destination list.
Do travel eSIMs come with calls and SMS?
Many are data-only and do not include an ordinary phone number. Check the exact offer before paying.
Can I use my phone as a hotspot abroad?
Usually yes if both your device and your mobile plan support tethering. Check conditions and likely data consumption.
Will I keep my WhatsApp number if I change SIMs?
Normally yes. WhatsApp can continue with the number associated with your account while using a different line for data.
Is roaming free throughout Europe?
Not everywhere and not for every subscriber. Eligible EU/EEA subscriptions benefit from covered roaming rules, subject to fair-use and destination conditions.
Is public Wi-Fi safe for banking?
Encrypted banking apps and HTTPS sites offer important protection, but verify the network and avoid suspicious portals. Use cellular data if you do not trust a hotspot.
How do I avoid unexpected roaming fees?
Read your operator’s charges, select the intended line for mobile data and review data roaming and automatic switching settings.
How much data should I buy for a week abroad?
Around 5–10 GB may suit regular sightseeing, but streaming, hotspot use and large uploads can raise that significantly.
Stay connected without overpaying
The most reliable travel internet plan is the one that fits your real needs. Included roaming may be easiest for a short visit; a local SIM may serve a longer stay that requires a domestic phone number; pocket Wi-Fi can be useful for a group; and an eSIM can simplify arrival and multi-country travel. Keep essential information available offline, whichever method you choose.
If a prepaid digital data plan makes sense for your itinerary, you can compare eSimity’s Europe eSIM options and review the supported countries and terms. There is no need to buy an additional plan when your existing connection already meets your needs.