Compare Great Value eSIM-Deals

Looking for cheap eSIM-only deals? Our eSIM and SIM-only comparison tool helps you compare plans from leading UK networks in minutes.

An eSIM plan lets you keep your current phone while switching networks, helping reduce your monthly cost without paying for a new handset..

We compare the latest eSIM offers from some of the UK's top mobile networks, helping you quickly find your perfect plan based on price, data allowance, and contract length.
Deals and prices correct at time of publication.
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Saily - Travel eSIM

Choose plans from 7 days up to 30 days.
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texts Included
Minutes Included
Data From 1GB
Contract From 7 Days
Monthly cost From £3.99
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Data packages available - 1GB, 3GB, 5GB, 10GB, 20GB and Unlimited
Coverage in more than 200 destinations Fast and 100% online activation through the app Practical alternative to avoid roaming charges Flexible plans and easy data top-ups 24/7 customer support during travel

Chattr Unlimited

Exclusive Deal
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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract 1 month
Monthly cost £15 /mth
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Uses O2's network No contracts and free delivery No annual price rises Roam freely in 43 European destinations Exclusive benefits and rewards

Chattr 50GB

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texts Unlimited
Minutes Unlimited
Data 50GB
Contract 1 month
Monthly cost £12 /mth
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Uses O2's network No contracts and free delivery No annual price rises Roam freely in 43 European destinations Exclusive benefits and rewards

Chattr 25GB

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texts Unlimited
Minutes Unlimited
Data 25GB
Contract 1 month
Monthly cost £11 /mth
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Uses O2's network No contracts and free delivery No annual price rises Roam freely in 43 European destinations Exclusive benefits and rewards

Chattr 5GB

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texts Unlimited
Minutes Unlimited
Data 5GB
Contract 1 month
Monthly cost £10 /mth
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Uses O2's network No contracts and free delivery No annual price rises Roam freely in 43 European destinations Exclusive benefits and rewards

Lebara Unlimited

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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract 30-day rolling plan
Monthly cost £25 /mth
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No Annual Price Rises Use your plan in the EU or India at no extra cost Runs on Vodafone network No credit checks 100 International Minutes

O2 SIM Only on Classic - 24 Month contract

Unlimited mins & texts. Unlimited 5G data.

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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract 24 Months
Monthly cost £32 /mth
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Get Unlimited data Roam freely in the EU Exclusive benefits and rewards O2 Priority Upgrade options after 3 months

Offer and pricing correct at time of publish.

O2 SIM Only on Classic

12 Month contract. Unlimited mins & texts. Unlimited 5G data

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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract 12 Month Rolling Airtime Plan
Monthly cost £35 /mth
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Get Unlimited data Roam freely in the EU Boost your package with Extras One Extra included in this package O2 Priority

O2 SIM Only on Plus Unlimited

12 Month contract. Unlimited mins & texts. Unlimited 5G data

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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract 12 Month Rolling Airtime Plan
Monthly cost £36.99 /mth
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Get Unlimited data Roam at no extra cost in 75 destinations worldwide Including the EU, the USA, Australia and Mexico Boost your package with Extras O2 Priority

Your Coop Unlimited 5G SIM-Only

Keep your current number

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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract 30 day rolling
Monthly cost £39 /mth
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Unlimited UK calls and texts Free EU Roaming Carbon Neutral Superfast 5G data eSim available

Ecotalk UNLIMITED

The world's first mobile network to use its profits to restore nature!
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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract Monthly
Monthly cost £22
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Switching is easy The UK’s best network coverage No price rises – ever! Amazing UK-based customer service Keep your number

Ecotalk 100GB

The world's first mobile network to use its profits to restore nature!
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texts Unlimited
Minutes Unlimited
Data 100GB
Contract Monthly
Monthly cost £18
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Switching is easy The UK’s best network coverage No price rises – ever! Amazing UK-based customer service Keep your number
5G Eco Friendly Sim Only Deals

Ecotalk 30GB

The world's first mobile network to use its profits to restore nature!
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texts Unlimited
Minutes Unlimited
Data 30GB
Contract Monthly
Monthly cost £14
Visit Now

Switching is easy The UK’s best network coverage No price rises – ever! Amazing UK-based customer service Keep your number
5G Eco Friendly Sim Only Deals

Ecotalk 10GB

The world's first mobile network to use its profits to restore nature!
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texts Unlimited
Minutes Unlimited
Data 10GB
Contract Monthly
Monthly cost £12
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Switching is easy The UK’s best network coverage No price rises – ever! Amazing UK-based customer service Keep your number
5G Eco Friendly Sim Only Deals

Ecotalk - Just Talk

The world's first mobile network to use its profits to restore nature!
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texts Unlimited
Minutes Unlimited
Data No data
Contract Monthly
Monthly cost £4
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Switching is easy The UK’s best network coverage No price rises – ever! Amazing UK-based customer service Keep your number
5G Eco Friendly Sim Only Deals

Grade Mobile Unlimited

Change your plan anytime. No credit checks

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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract Monthly
Monthly cost £25 /mth
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Unlimited UK calls and texts Uncapped speeds Keep your number 5G included Free delivery of SIM

Grade Mobile 100GB

Change your plan anytime. No credit checks

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texts Unlimited
Minutes Unlimited
Data 100GB
Contract Monthly
Monthly cost £16 /mth
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Unlimited UK calls and texts Uncapped speeds Keep your number 5G included Free delivery of SIM

1p Mobile 4GB

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texts Unlimited
Minutes Unlimited
Data 4GB
Contract 30-day rolling plan
Monthly cost £6 /mth
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UK's best coverage on 2G, 4G & 5G No speed caps or throttling No contract No credit check EU roaming included

1p Mobile 10GB

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texts Unlimited
Minutes Unlimited
Data 10GB
Contract 30-day rolling plan
Monthly cost £8 /mth
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UK's best coverage on 2G, 4G & 5G No speed caps or throttling No contract No credit check EU roaming included

1p Mobile Unlimited

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texts Unlimited
Minutes Unlimited
Data Unlimited
Contract 30-day rolling plan
Monthly cost £25 /mth
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UK's best coverage on 2G, 4G & 5G No speed caps or throttling No contract, 30-day rolling No credit check EU roaming included

1p Mobile 50GB

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texts Unlimited
Minutes Unlimited
Data 50GB
Contract 30-day rolling plan
Monthly cost £10 /mth
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UK's best coverage on 2G, 4G & 5G No speed caps or throttling No contract, 30-day rolling No credit check EU roaming included

Lebara Unlimited - International

International Calls & Data SIM Only Plan

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texts Unlimited
Minutes Unlimited
Data Unlimited 4G & 5G
Contract 30-day rolling plan
Monthly cost £30 /mth
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No Annual Price Rises Use your plan in the EU or India at no extra cost (up to 30GB data). Runs on Vodafone network No credit checks 1000 International Minutes

Lebara 5GB

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texts 1000
Minutes 1000
Data 5GB
Contract 30-day rolling plan
Monthly cost £5 /mth
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No Annual Price Rises Use your plan in the EU or India at no extra cost (up to 30GB data). Runs on Vodafone network No credit checks 1000 International Minutes

Lebara 50GB

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texts Unlimited
Minutes Unlimited
Data 50 GB
Contract 30-day rolling plan
Monthly cost £9 /mth
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No Annual Price Rises Use your plan in the EU or India at no extra cost (up to 30GB data). Runs on Vodafone network No credit checks 1000 International Minutes

50% off for 6 months.

Use code - NET6

Offer expires on 2nd August 11.59pm. Enter voucher code at the checkout for the discount to apply.

How to Choose the Best eSIM Deal

Choosing the best eSIM deal depends largely on how you use your phone each day. With hundreds of eSIM plans available in the UK, comparing the key features can help you find the right balance between price, data, and flexibility.

Unlike traditional mobile contracts that include the cost of a handset, eSIM plans provide a digital SIM profile that works with your existing eSIM-compatible phone. This means you avoid paying for a new device and can access much cheaper monthly plans while still benefiting from the same network coverage, call allowances, and data speeds.

Because of this, eSIM plans have become one of the most popular ways to get affordable mobile service in the UK. Many networks now offer competitive plans with generous data allowances, unlimited calls and texts, and even 5G connectivity at no extra cost.

Before switching, it's important to consider how much data you need, how long you want to commit to a plan, whether your phone supports eSIM, and which mobile network provides the best coverage in your area.

Key Features to Compare in eSIM Plans

Feature Why It Matters
Data Allowance Heavy streaming, gaming, or social media users will benefit from larger data plans.
Contract Length 30-day rolling deals offer flexibility, while 12-month plans are usually cheaper.
Network Coverage Coverage varies across the UK, so choosing a reliable network is essential.
5G Availability Faster speeds and lower latency in supported areas.
Device Compatibility Not all phones support eSIM, so check compatibility before switching.

Using an eSIM for Travelling

eSIMs have become a popular alternative to physical travel SIMs, letting you get connected the moment you land without hunting for a local SIM card or paying costly roaming fees. Instead of swapping a physical SIM, you simply download a travel eSIM plan before you go and activate it on arrival, or even switch it on in advance so it's ready the moment you land.

Most eSIM providers let you choose data-only or data-and-calls bundles for a specific country or region, covering anywhere from a few days to a month. This makes eSIMs especially useful for short trips, multi-country travel, or anyone who wants to avoid daily roaming charges from their UK provider. You can also keep your existing UK number active on your main SIM while using a separate eSIM purely for data abroad.

Before you travel, check that your phone supports eSIM and is unlocked, then compare providers on data allowance, coverage, and price for your destination. Remember, some travel eSIMs are data-only, so check if you need calling minutes too. Also, it's recommended to download and install your travel eSIM while still on home WiFi, then activate it once you land to avoid using mobile data before you're set up.

Checking eSIM Compatibility

Not every phone supports eSIM technology, so it's worth checking before you switch. Most recent flagship smartphones support eSIM, but availability varies by manufacturer, model, and even region. To activate your plan, you simply scan a QR code provided by your network instead of inserting a physical SIM card.

Benefits of eSIM include:
  • Faster activation
  • No physical SIM required
  • Ability to store multiple network profiles at once

eSIM vs Phone Contracts

Looking for the best eSIM deal in the UK? eSIM plans usually cost less than traditional phone contracts and give you the freedom to switch networks or upgrade your plan whenever you want.

Compare the key differences between eSIM plans and phone contracts to find the right choice for your lifestyle.
Feature SIM-Only Phone Contract
Monthly Cost Lower Higher
Contract Length Flexible Usually 24 months
Includes Phone No Yes
Upgrade Freedom Anytime Limited
Device Compatibility Required N/A


If you already own an eSIM-compatible smartphone, eSIM plans are usually the cheapest option.

View eSIM Deals