Three Mobile 24GB Data Only UK SIM 730 Days

Best Long-Term Data SIM for Europe Trips: Three Mobile 24GB Data Only UK SIM – 730 Days

If you’re looking for long-term mobile internet without monthly commitments, this 2-year data-only SIM card from Three Mobile UK is the perfect solution. It includes 24GB of high-speed data, valid for 730 days, ideal for occasional users, travelers, remote workers, or those needing a dependable backup connection. It works across the UK and over 70 supported destinations, supports tethering, and does not require contracts or top-ups. Whether you're powering a tablet, mobile router, or keeping a SIM on standby, this is flexibility at its finest.

Key Features

Why Activate Three Mobile 24GB Data Only UK SIM 730 Days?

1. Long-Term Connectivity for Two Years

Stay connected for up to 730 days with one SIM card. No need to renew monthly—just activate once and enjoy long-lasting access.

2. One-Time Purchase, No Monthly Fees

Enjoy 24GB of data without monthly payments or auto-renewals. A prepaid plan that keeps things simple and budget-friendly.

3. Reliable Backup Internet for Emergencies

Great for remote work, IoT setups, or critical online tasks. Keep this SIM as an emergency backup in case your main internet goes down.

4. Perfect for Travelers and Remote Locations

Use it across the UK and 70+ supported international destinations. It’s perfect for travelers who want occasional data access without switching SIMs often.

5. Low-Maintenance Data Solution

Use 24GB of data at your own pace across two years. There are no daily or monthly caps—great for infrequent but essential internet access.

6. Share Data Across Multiple Devices

Turn your phone into a hotspot or insert this SIM into a tablet, dongle, or mobile router to share data on the go. Perfect for road trips, camping, or remote work setups.

Supported Countries for Roaming

Aland Islands, Austria, Azores, Balearic Islands, Belgium, Bulgaria, Canary Islands, Croatia, Cyprus, Czech Republic, Denmark, Estonia, France, French Guiana, Germany, Gibraltar, Greece, Guadeloupe, Guernsey, Hungary, Iceland, Ireland, Isle of Man, Italy, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Madeira, Malta, Martinique, Mayotte, Netherlands, Norway, Poland, Portugal, Reunion, Romania, Saint Barthelemy, Saint Martin, San Marino, Slovakia, Slovenia, Spain, Sweden, Switzerland, Vatican City, Australia, Brazil, Chile, Colombia, Costa Rica, El Salvador, Guatemala, Hong Kong, Indonesia, Israel, Macao, New Zealand, Nicaragua, Panama, Peru, Puerto Rico, Singapore, Sri Lanka, USA, Uruguay, US Virgin Islands, Vietnam, United Kingdom.

Supported Devices

iPhones: iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13 mini, iPhone 13, iPhone 12 Pro Max, iPhone 12 Pro, iPhone 12 mini, iPhone 12, iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11, iPhone XS, iPhone XS Max, iPhone XR, iPhone SE 2 (2020);
Google Pixel: Pixel 3, Pixel 3 XL, Pixel 3a, Pixel 3a XL, Pixel 4, Pixel 4a, Pixel 4 XL, Pixel 5, Pixel 6, Pixel 6 Pro;
HONOR: Magic 3, Magic 3 Pro, Magic 3 Pro+, HONOR 50;
Huawei: P40, P40 Pro, Mate 40 Pro;
Nuu: X5;
Oppo: Reno 5 A, A55s, Reno 6 Pro 5G, Find X3 Pro;
Rakuten: Mini, Big, Big S;
Samsung Galaxy: Fold, Fold 2, Fold 3 5G, Z Flip, Z Flip 3 5G, Z Flip 3 5G Fold, S20, S20+, S20 Ultra, S21 5G, S21+ 5G, S21 Ultra 5G, S22, S22+, S22 Ultra, Note20, Note20 Ultra;
Sony: Xperia 10 III Lite;
Sharp: AQUOS sense4 lite;
Fairphone: Fairphone 4;
iPads: iPad Pro 11, iPad Pro 12.9, iPad Air (3rd Gen or later), iPad (7th Gen or later), iPad mini (5th Gen or later).
If your device is not listed here, it may be incompatible. Please confirm with your device manufacturer.

How to Activate the SIM

• Insert the SIM into your compatible device

• Follow the configuration steps included in the SIM pack

• Your 730-day validity starts from activation

Note: The eSIM version is coming soon.

Frequently Asked Questions

1. How much data is included?

This SIM includes 24GB of high-speed data, valid for up to 730 days.

2. Can I use this SIM outside the UK?

Yes, it supports roaming in over 70 destinations. Standard roaming conditions apply.

3. Is this SIM for data only?

Yes, this is a data-only SIM. It does not include voice minutes or SMS.

4. Is hotspot/tethering allowed?

Yes. You can share your data with other devices using hotspot/tethering.

5. Can I top up or renew this plan?

No. Once the 24GB is used or 730 days have passed, you will need to purchase a new SIM.

6. Will unused data expire?

Yes. Unused data expires after 730 days from the activation date.

7. What happens if I exceed the 24GB limit?

Once the data is used up, you’ll need a new plan—there is no data rollover or extension available.