The single question that decides your connectivity bill abroad is not which country you are visiting, it is which of five options you default to when you land. Indians made tens of millions of international departures in 2025, and most paid more than they needed to because they reached for the most convenient option instead of the cheapest one. This guide prices all five ways an Indian traveller can get online abroad, in rupees, and names honestly which is cheapest for which kind of trip.
The short answer: for most trips of one to three weeks, a prepaid travel eSIM is the cheapest practical way to stay online, because it is priced per gigabyte and installs before you fly. Carrier international roaming is the most convenient and the most expensive. A local SIM bought on arrival can edge out the eSIM on price for long stays but costs you your arrival hours. Pocket WiFi pays off only for groups, and hotel WiFi is free but strands you the moment you leave the lobby. Here is the full comparison, then the exceptions where a different option genuinely wins.
In this guide:
- The five options at a glance
- Option 1: Indian carrier international roaming
- Option 2: a prepaid travel eSIM
- Option 3: a local SIM on arrival
- Option 4: pocket WiFi rental
- Option 5: hotel and cafe WiFi
- The verdict, with honest exceptions
- The dual SIM trick that keeps OTPs free
The five options at a glance
| Option | Typical cost, mid 2026 | Convenience | Cheapest for |
|---|---|---|---|
| Carrier roaming (Airtel, Jio, Vi) | High: packs price validity days, ration 1 to 3 GB per trip | Highest: nothing to install | Nobody on data; worth it only to keep the +91 number live |
| Travel eSIM | Low per GB: buy the data you use | High: install at home, works on landing | Most trips of 1 to 3 weeks |
| Local SIM on arrival | Lowest per GB in some markets | Low: passport, counter queue, offline until active | Long stays of a month or more |
| Pocket WiFi rental | Daily rental plus deposit | Medium: extra device to carry and charge | Groups sharing one connection |
| Hotel and cafe WiFi | Free | Low: tethered to the building | Big downloads from your room only |
All prices move and every carrier revises them regularly; confirm in the relevant app before you buy. Now the detail on each.
Option 1: Indian carrier international roaming
This is what most first-time travellers use because it needs zero setup: activate a pack in the Airtel Thanks, MyJio or Vi app and your existing number just works abroad. The convenience is real. The price is the problem.
Every carrier roaming pack prices the calendar and rations the data. As of mid 2026, Airtel’s entry international daily pack sits around ₹698 for 1 GB, and its data-focused packs offer roughly 3 GB across a week; Jio groups popular countries and offers packs such as roughly ₹575 for 2 GB over 7 days on its cheapest group; Vi’s headline is ₹2,999 for 7 days of unlimited data and calls across its covered countries. After the early-2026 tariff revisions, these numbers crept up rather than down. The gigabyte you get always costs multiples of what the same gigabyte costs on a local network.
The honest takeaway: carrier roaming is worth buying to keep your +91 number reachable, not to carry your data. The full pack-by-pack arithmetic is in our best international roaming plans comparison, with corridor detail in the Airtel roaming vs eSIM and Jio roaming vs eSIM guides.
Option 2: a prepaid travel eSIM
A travel eSIM is a data plan you buy online for your destination, delivered by QR code to your email in seconds, installed at home before you fly. Because it runs on local networks and is priced per gigabyte rather than per day, it is the option that most consistently comes out cheapest for a normal holiday or business trip.
The maths is simple. Estimate 1 GB to 2 GB per day of real use: maps, cabs, messaging, social uploads, the odd video call home. Buy a plan sized to your trip with 20 to 30 percent headroom. You pay for that data once, and unlike a roaming pack there is no daily-validity cliff forcing a repurchase mid-trip. Prices move, so we do not print Viasimo figures here; see the live INR prices on the destination page for your route, for example Thailand, the UAE, the USA or Singapore, and compare them against the roaming packs above for the same data.
If you have never installed one, it is a five-minute job done over home WiFi. Our how to buy a travel eSIM in India guide walks the whole purchase, INR payment and dual SIM setup step by step, and how to install and activate an eSIM has the screenshots.
Option 3: a local SIM on arrival
Buying a SIM from a local operator once you land can be the outright cheapest per gigabyte, especially in fiercely competitive markets. The catch is everything around the price.
You arrive offline. You find a licensed counter, not a random airport stall, show your passport, and in many countries submit a fingerprint or a local address before the SIM activates. In some markets tourist SIMs are genuinely cheap and generous; in others the airport-counter price is a tourist markup over the city-shop price. You also swap out or top-slot your Indian SIM, which is exactly the OTP risk a travel eSIM avoids. For a stay of a month or more the per-gigabyte saving usually justifies the hassle. For a one-week holiday, the arrival hours you lose hunting for a counter are worth more than the few rupees per gigabyte you save.
Option 4: pocket WiFi rental
A pocket WiFi device is a small rented router that creates a WiFi hotspot several devices can share. You pay a daily rental, usually a deposit, and you carry and charge a second gadget for the whole trip, then return it before your flight.
For a family or a group of colleagues sharing one connection, the per-person cost can undercut individual eSIMs. For a solo traveller or a couple, it rarely does, once you account for the deposit, the charging, and the fact that the whole group must stay within the router’s range to be online. Run the total rental for your exact dates against a per-gigabyte eSIM plan per phone before booking; the eSIM usually wins for one or two people, and it never runs out of battery in your bag.
Option 5: hotel and cafe WiFi
Free WiFi is genuinely free, and it has a real role: do your big downloads, back-ups and long video calls from the hotel room where the connection costs nothing. The problem is that it does not travel with you. The moment you step out for directions, a taxi, a menu translation or a bank OTP, you are offline unless you have mobile data.
There is also a security dimension. Public WiFi is a poor place to do banking or enter card details; if you must, use a VPN. Treat hotel and cafe WiFi as a supplement that lets you buy a smaller eSIM plan, never as your only connection. A traveller who plans to lean on free WiFi still needs a modest data plan for everything that happens between buildings.
The verdict, with honest exceptions
For the large majority of Indian travellers taking a trip of one to three weeks, a prepaid travel eSIM is the cheapest way to stay online that is also convenient: local-network data pricing, no airport queue, no OTP risk, install at home and land connected. That is the default we would recommend to almost anyone.
The honest exceptions:
- Staying a month or more: buy a local SIM or plan once you have settled; the long-run per-gigabyte cost beats everything.
- A group of four or more sharing: price a pocket WiFi rental against four eSIMs before deciding.
- You only need your +91 number reachable and will use almost no data: a cheap carrier roaming activation to receive calls and SMS, paired with hotel WiFi, can be the minimum spend.
- Heavy laptop work from one base: hotel WiFi plus a small eSIM for the streets is often enough.
For everyone else, the eSIM is the answer, and the esim vs roaming cost comparison shows the rupee gap on a worked example.
The dual SIM trick that keeps OTPs free
Whichever data option you choose, the identity half of the problem has one correct answer for Indian travellers, and it is free. Keep your Jio, Airtel or Vi SIM physically in the phone with its data roaming switched off, and let your data option carry the internet. Incoming SMS, including UPI and bank OTPs, are generally free to receive while roaming on Airtel and Jio as of mid 2026, so your +91 number keeps working at no cost. UPI and banking apps keep functioning because they verify the registered SIM is in the handset, not which line supplies the data.
Almost every recent iPhone and most recent Androids run dual SIM with an eSIM on one line and your physical Indian SIM on the other; confirm yours in a minute with the device compatibility checker, and the full toggle-by-toggle setup is in our dual SIM travel setup guide.
When you are ready to price your own trip, live INR prices for every destination are on Viasimo, starting with the routes Indians fly most: Thailand, the UAE, the USA and Singapore. Compare the eSIM against the roaming pack for your dates, and let the arithmetic pick the cheapest option instead of the airport picking it for you. If anything snags, support is available around the clock.
