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United Kingdom 3GB
3GB
Validity15 days
NetworkUp to 5GO2, EE
Price€4.49one-off
Plan details
Networks may include O2, EE, 3.
Mobile data plan.
Validity starts on first connection to a supported destination network. You can install before travel.
Available now
Choose how much data you need.
Best for most trips
United Kingdom 10GB
10GB
Validity30 days
NetworkUp to 5GO2, EE
Price€9.99€7.99one-off
Plan details
Networks may include O2, EE, 3.
Mobile data plan.
Validity starts on first connection to a supported destination network. You can install before travel.
More data
United Kingdom 20GB
20GB
Validity30 days
NetworkUp to 5GO2, EE
Price€19.49€15.49one-off
Plan details
Networks may include O2, EE, 3.
Mobile data plan.
Validity starts on first connection to a supported destination network. You can install before travel.
Network coverage
Supported local networks
Depending on the selected plan, supported networks may include:
O2- EE
- 3
Network access depends on the selected plan, your location and local availability. A displayed logo identifies a supported network only.
Supplier-backed network information
Mobile coverage in United Kingdom
Northern Europe · Europe
Networks and technology
suitcase.ie’s current United Kingdom catalogue identifies 3 supported networks. Current supplier data lists O2, EE and 3. Available plans identify Up to 5G. United Kingdom is grouped in Northern Europe by the cited official geography source.
- O2
- 5G
- EE
- 5G
- 3
- 4G
Where coverage can vary
No destination-specific geographic limitation is published without a verified source. As with all mobile services, signal strength varies by location, network conditions and device.
Actual service depends on the selected plan, location, network conditions, congestion and device. Supplier-listed technology describes supported access, not guaranteed speed or nationwide coverage.
Connectivity information last reviewed: September 2026. Geographic classification: United Nations Statistics Division.
Practical trip use
Using mobile data in United Kingdom
For travel in United Kingdom, part of Northern Europe, current plans provide 3–20GB of data for 15–30 days. Use it for maps, messaging, translation, transport information and digital travel bookings; actual consumption depends on the apps and settings used. Validity starts on first connection to a supported destination network. You can install before travel. A compatible dual-SIM phone can keep the existing SIM active while suitcase.ie is selected for mobile data.
- Higher-allowance options for data-intensive use
- Plan choice based on trip length and allowance
- Supplier-listed network options that can differ by plan
Practical connectivity guidance
Mobile data in United Kingdom: what to expect.
Direct answer
A suitcase.ie United Kingdom eSIM gives you mobile data on supported local networks without replacing your physical SIM. There are currently 3 purchasable options, with prices, allowances, validity and activation rules shown on this page.
3GB · 15 days
Light use · maps and messaging
View this current plan10GB · 30 days
Best for most trips · maps, messaging and social media
View this current plan20GB · 30 days
Heavy use · frequent video or higher data needs
View this current planUnited Kingdom eSIM FAQs
Frequently asked questions about eSIMs in United Kingdom
Which mobile networks can the United Kingdom eSIM use?
Current suitcase.ie United Kingdom plans list O2, EE and 3. The network available depends on the selected plan, location and local conditions.
Does the United Kingdom eSIM support 4G or 5G?
Current supplier data identifies Up to 5G across the available United Kingdom plans. This is a plan capability, not a guarantee of coverage or speed at every location.
Which United Kingdom plan is closest to 5GB for seven days?
The closest current option to 5GB for seven days is 10GB valid for 30 days at €7.99. Choose by the allowance and validity shown in the live plan table.
When does the United Kingdom eSIM activate?
Validity starts on first connection to a supported destination network. You can install before travel.
How does Irish roaming compare for United Kingdom?
suitcase.ie does not currently publish a United Kingdom roaming-cost figure because fewer than two reliable Irish-operator observations are available. Missing rates are not counted as zero.
Before you buy
Check the phone and activation rule.
Coverage and network generation vary by location, device and local network conditions. Check the selected plan before purchase.
Check your phone and return to this plan →Validity starts on first connection to a supported destination network. You can install before travel.
Supported networks may include O2, EE, 3. Local coverage and speed vary.
€7.99 one-off. Checkout verifies it again before payment.
Not sure on allowance?
Estimate the data you’ll use.
Turn trip length and everyday phone habits into a transparent estimate, then return to suitable United Kingdom plans.
Use the calculatorNeed to check the device?
Confirm eSIM support.
Search verified device records and confirm that your phone is network unlocked before purchase.
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