Best eSIM for India from UK: Compare Plans for Your Trip

Travelling to India from the UK? Choose your eSIM by the network available along your route, enough data for your trip, and the total cost in pounds.

If this is your first time using one, start with our guide to what an eSIM is and how it works.

To narrow down your options:

• Short holiday with hotel Wi-Fi: compare smaller data bundles that cover your full stay.
• Two weeks with frequent navigation and browsing: compare larger bundles against the cost of buying a smaller plan and topping up.
• Working or sharing data with a laptop: check hotspot allowances and speed restrictions, especially on “unlimited” plans.
• Need an Indian number for calls or SMS: check whether the plan includes one before buying.

Also check whether your existing UK mobile plan includes India roaming. That gives you a useful baseline for deciding whether a separate eSIM offers better value.

Below, we compare the plans, networks and limitations that matter, then cover setting up before departure and keeping your UK number available.

Compare India eSIMs for UK Travellers

Start by comparing packages with the same data allowance and validity, then check the network and hotspot terms. A cheaper plan is only better value if it meets your needs.

Fixed-data plans

These 30-day packages cover either a one-week or two-week holiday, provided you stay within the data allowance.

esimNB costs less for both data allowances in this comparison. esimNB names its partner networks, making it easier to check coverage along your route before buying. That transparency is useful, but it does not by itself prove better reception or speeds.

Unlimited-data alternative

If you expect to use more than a fixed bundle, compare the cost of an unlimited plan for your exact trip length.

As covered in our Holafly eSIM review, Holafly’s unlimited allowance applies to phone data; hotspot sharing is limited to 1GB per day, and fair-use restrictions can temporarily reduce speeds. It is worth considering for heavy phone use, but check that hotspot limit if you plan to work on a laptop.

For a two-week trip, compare the 15-day unlimited price with a fixed bundle large enough for your expected usage. Our esimNB vs Holafly comparison covers the broader differences between fixed and unlimited plans. Paying more for unlimited data makes little sense if you will mainly use maps, messaging and hotel Wi-Fi.

Prices checked on 15 September 2026, excluding promotional discounts. GBP estimates use US$1 ≈ £0.7404, based on Xe’s 14 September rate. These are conversions, not GBP checkout quotes; the final charge may vary.

Which Network Does Your India eSIM Use?

Check the Indian network behind the eSIM, particularly if your trip includes smaller towns or travel between cities.

Start with your hotel locations and main stops using the Airtel coverage map and Jio coverage map. For rural stays, ask your accommodation which network works reliably on the property.

Before buying, check three things:

• Supported operators: does the specific package name Airtel, Jio or another network?
• Available connection: does the package include 5G access, or only 4G?
• Network selection: if several operators are listed, can you switch between them when reception is poor?

A national coverage map is a starting point, not a guarantee of reception inside your hotel. Holafly, for example, explicitly warns that coverage can be weaker in mountains, deserts and jungles.

For a Delhi–Agra–Jaipur holiday, check all three stops and your accommodation locations. For a remote itinerary, prioritise confirmed coverage over a small price saving.

How Much Data Do You Need for Your Trip?

Choose your allowance around how you use your phone away from Wi-Fi. A week of navigation and messaging needs a different budget from a week of video uploads and laptop tethering.

These are planning estimates, not measured usage guarantees:

For perspective, 5GB across seven days allows about 700MB a day; 10GB across fourteen days gives roughly the same daily budget.

Check your phone’s recent mobile-data usage as a starting point. Then allow extra for navigation and time away from Wi-Fi. Download offline maps and keep large updates and photo backups on Wi-Fi.

Also check validity: a seven-day package will not cover a two-week trip, even if you have data left.

Which India eSIM Fits Your Trip?

The following choices reflect the published plans above, rather than hands-on speed testing.

esimNB: worth considering when you want named network partners

esimNB supports Airtel, supports hotspot sharing, and provides online data-usage checking. Its product page says validity starts when the eSIM first connects abroad.

Consider it if you want to check the named networks against your route and manage usage online. Its listed 5GB and 10GB packages cost more than Saily’s, so the decision should depend on those features rather than a claim that it is the cheapest.

Holafly: worth considering for heavy phone-data use

Holafly lets you buy unlimited phone data for your travel dates. This can suit travellers who expect to exceed a fixed bundle and prefer not to track every gigabyte.

However, hotspot sharing is limited to 1GB per day, and fair-use restrictions can temporarily reduce speeds. That makes its India plan less suitable if your main requirement is heavy laptop use.

India eSIM vs UK Roaming: Which Costs Less?

Before buying an eSIM, check India specifically in your existing UK mobile account. Inclusive roaming, paid passes and allowances depend on your plan.

Use your provider’s roaming checker or account:

• EE roaming costs
• O2 destination checker
• Vodafone roaming checker
• Three’s Go Roam information in your Three account

Compare the additional cost for your whole trip, including any fair-use limit and the calls or texts you need.

For example, a hypothetical £7 daily roaming charge would total £98 across fourteen charged days. Compare that with the eSIM bundle you would actually buy—not its smallest advertised starting price. Check whether a multi-day pass or included roaming days reduce your UK provider’s total.

If your plan already includes sufficient India data at no extra cost, a separate eSIM may be unnecessary. If roaming costs substantially more, a travel eSIM is worth considering.

Before You Fly: Set Up Your eSIM and Keep Your UK Number

Before leaving the UK

1. Check your exact phone model supports eSIM and is unlocked. On iPhone, look under Settings → General → About → Carrier Lock for “No SIM restrictions”. Apple’s international eSIM guide
2. Read the activation policy before installing. Installation and the start of validity are not necessarily the same event. esimNB states that its India plan starts on first connection abroad; Saily lists automatic activation on arrival, with a separate activation deadline.
3. Install over reliable Wi-Fi and save the setup instructions and support contact details. iPhone users can follow our eSIM installation and activation guide.

When you arrive in India

For a compatible dual-SIM phone, use this setup:

Your phone’s menu names may differ. Apple explains how to select the data line and manage the two numbers in its Dual SIM guide.

If the travel line still shows no service after you arrive, follow our guide to fixing no signal after activating an eSIM.

Turning off UK data roaming does not block chargeable calls or texts. Check your UK provider’s terms before making or answering calls, sending SMS or using voicemail. If you do not need the UK line during your trip, switch it off.

FAQs for UK Travellers

Can I keep my UK WhatsApp number?

Yes. Keep your existing WhatsApp account rather than changing its registered number when you install the travel eSIM. Holafly confirms that your existing number, contacts and conversations remain available.

Will an India eSIM give me an Indian phone number?

Do not assume so. Holafly’s India plan is data-only. Saily advertises an optional US number with separate calling and texting plans, which is not an Indian number. Check the exact product if you need local calls or Indian SMS verification.

Can I receive banking codes on my UK number?

That depends on your UK line remaining active, its roaming support and the bank successfully delivering the message. The India data eSIM does not receive SMS addressed to your UK number. Confirm overseas SMS access with your UK operator before departure.

Can I buy a small package and top up later?

Check the recharge options for your chosen package before relying on this approach. esimNB offers package management and top-ups, while Saily allows additional plans on an existing eSIM. Check the new allowance, price and validity before paying.

Will my India eSIM work during a stopover?

Only if the stopover country is included in that package’s coverage. If you need mobile data there, compare an India plan plus a small stopover package with a regional or global plan covering both destinations.

Which should I choose?

For a fixed data budget, start with the lowest-cost package that covers your trip and usage. Confirm its Indian network if your route makes coverage a priority. Choose unlimited only after checking the extra cost, hotspot allowance and speed restrictions—and check your existing UK roaming benefits before paying for either.