Best eSIM for Sri Lanka: Plans, Prices and Coverage
July 16th, 2026
TL;DR: the best eSIM for Sri Lanka
If you want the cheapest way to get connected in Sri Lanka, the Roam Like Home® Sri Lanka 1 GB 7 Days plan costs £8.50. If you want the best value per gigabyte, the Sri Lanka 100 GB 30 Days plan at £90.50 works out at £0.91 per GB, and the 20 GB 30 Days plan at £24.00 (£1.20 per GB) is the sweet spot for most trips and comfortably covers most trips. Heavy users can go fully unlimited, with options from 1 day (£10.50) up to 30 days (£76.50). All Sri Lanka plans connect to Mobitel, Dialog Axiata and Hutch, and you can install everything before you leave home.
What to look for in a travel eSIM for Sri Lanka
Not every eSIM is built the same, and a little checking before you buy saves a lot of airport stress. Here is what actually matters for Sri Lanka.
Network coverage. Sri Lanka has three main mobile networks, and an eSIM that can connect to more than one gives you a better chance of a signal whether you are in Colombo, up in the hill country or on the south coast. Keep On Roaming plans for Sri Lanka connect to Mobitel, Dialog Axiata and Hutch.
Plan flexibility. A weekend in Colombo and a month of surfing in the south need very different plans. Look for a range that covers short unlimited bursts as well as longer fixed data allowances, so you only pay for what your trip actually needs.
Top-ups. Data estimates go wrong. Maps, photo backups and video calls home add up quickly, so make sure you can top up from your phone rather than hunting for a local SIM shop halfway through your trip.
Installation before you fly. The best time to set up your eSIM is on your sofa, on your home Wi-Fi, days before departure. You install it in advance and it activates when you land and connect in Sri Lanka, so you have data from the moment you switch off aeroplane mode.
Keep On Roaming plans for Sri Lanka
All of the plans below are Roam Like Home plans for Sri Lanka. Prices are in GBP.
| Plan | Data | Duration | Price |
|---|---|---|---|
| Sri Lanka 1 GB 7 Days | 1 GB | 7 days | £8.50 |
| Sri Lanka Unlimited 1 Day | Unlimited | 1 day | £10.50 |
| Sri Lanka 2 GB 15 Days | 2 GB | 15 days | £11.00 |
| Sri Lanka 3 GB 30 Days | 3 GB | 30 days | £13.00 |
| Sri Lanka Unlimited 3 Days | Unlimited | 3 days | £14.50 |
| Sri Lanka 5 GB 30 Days | 5 GB | 30 days | £15.50 |
| Sri Lanka Unlimited 5 Days | Unlimited | 5 days | £16.50 |
| Sri Lanka 10 GB 30 Days | 10 GB | 30 days | £18.00 |
| Sri Lanka Unlimited 7 Days | Unlimited | 7 days | £19.50 |
| Sri Lanka 20 GB 30 Days | 20 GB | 30 days | £24.00 |
| Sri Lanka Unlimited 10 Days | Unlimited | 10 days | £26.50 |
| Sri Lanka Unlimited 15 Days | Unlimited | 15 days | £39.00 |
| Sri Lanka 50 GB 30 Days | 50 GB | 30 days | £51.50 |
| Sri Lanka Unlimited 30 Days | Unlimited | 30 days | £76.50 |
| Sri Lanka 100 GB 30 Days | 100 GB | 30 days | £90.50 |
Which plan should you pick?
For a short city break, the Unlimited 3 Days plan at £14.50 means you never have to think about data. For a typical one or two week holiday, the 10 GB 30 Days plan at £18.00 gives you plenty of room for maps, messaging and photo sharing, with the 30 day validity as a comfortable buffer. If you are travelling for a month and working online, the Unlimited 30 Days plan at £76.50 or the 100 GB 30 Days plan at £90.50 will keep up with video calls and backups.
The networks you will connect to
Your eSIM connects to Sri Lanka's local networks rather than roaming from home. Keep On Roaming plans use Mobitel, which offers 2G, 3G, 4G and 5G, plus Dialog Axiata and Hutch, which both offer 2G, 3G and 4G. Your phone picks the best available signal, so you are not tied to a single network's coverage map.
Sri Lanka eSIM FAQ
Will my phone work with an eSIM?
Most phones released in the last few years support eSIM, including recent iPhones, Google Pixels and Samsung Galaxy models. Check your phone's settings for an option to add an eSIM or a mobile plan. Your phone also needs to be unlocked by your home carrier.
When should I install my eSIM?
Install it before you fly, while you are on reliable Wi-Fi at home. That way the setup is done, and your plan is ready to connect as soon as you arrive in Sri Lanka.
What happens if I run out of data?
You can top up from your phone whenever you need more. If you know you are a heavy user, it is usually cheaper to buy a bigger plan upfront, like the 20 GB 30 Days plan at £24.00, than to top up several times.
Will my phone number change?
No. Your home SIM stays in your phone alongside the eSIM, so your usual number still works for calls and texts. You simply route your mobile data through the Sri Lanka eSIM to avoid roaming charges.
Is 5G available in Sri Lanka?
Mobitel offers 5G alongside 2G, 3G and 4G. Whether you get 5G depends on your phone supporting it and on where you are, with 4G from Mobitel, Dialog Axiata and Hutch as the fallback.
Is there an unlimited option for a very short trip?
Yes. The Unlimited 1 Day plan costs £10.50, and the Unlimited 3 Days plan costs £14.50, which suits a layover or a long weekend without watching a data meter.
Get connected before you land
Whether you need 1 GB for a week or a full month of unlimited data, there is a plan that fits your trip and your budget. Browse the full range of Sri Lanka plans, install your eSIM before you fly, and land in Colombo with your connection already sorted.