Unlimited Data SIM

Which UK Networks Unlimited Plans Are Really Unlimited? 

Here’s a list of networks offering unlimited data SIM plans in the UK. These plans typically come without data limits when used domestically, but check each network’s fair use policy for roaming and tethering.

Do I Need an Unlimited Data SIM?

Depends on your usage! If you rely on Wi-Fi or don’t stream videos over mobile, you likely won’t need unlimited data. However, if you frequently stream, video call, or use data-intensive apps, unlimited data could save you from potential extra charges.

Sample Data Usage for 1GB

• Stream 2 hours of standard video
• Stream 10 hours of music
• Upload 500 photos
• Browse online for 30 hours
• Send 1 million messages
• Play online games for 3-30 hours

Can I Use Unlimited Data Abroad?

Typically, no—limits apply abroad, with amounts varying by network. Here’s a quick guide:

Always verify with your network for up-to-date limits.

Tethering and Data-Only SIM Options

• Tethering: All networks allow tethering with unlimited data plans in the UK, but check for fair usage limits when traveling abroad.
• Data-Only SIMs: Available from networks like Three, O2, Vodafone, and Smarty. Alternatively, you can place a phone SIM in a broadband dongle, though call/text functionality would be lost.

Network Restrictions

Some networks enforce fair usage policies even on “unlimited” plans. Here are a few examples:

• Three, Vodafone, Tesco Mobile and Talkmobile: No general fair usage policy.
• EE: Up to 600GB/month, tethering to 11 devices.
• O2: Up to 650GB/month, tethering to 11 devices.
• Lyca Mobile: Up to 450GB/month.

Check your chosen network’s policy for the latest details.

UK Mobile Networks and Their Providers

Key:

• MNO (Major Network Operators): Networks that own their infrastructure (EE, O2, Vodafone, Three).
• MVNO (Mobile Virtual Network Operators): Providers that use the infrastructure of an MNO to offer their own services (e.g., Giffgaff, Tesco Mobile, Talkmobile).

Key Points:

• EE: Known for wide coverage, many networks leverage its infrastructure, including BT Mobile and Plusnet.
• O2: Popular for customer-friendly policies, used by Tesco Mobile, Sky Mobile, and GiffGaff.
• Vodafone: Offers high-speed 5G and is used by VOXI, Lebara, and Virgin Mobile.
• Three (3): Known for competitive pricing, supports iD Mobile and Smarty.

Additional Benefits on Each Network

• Inclusive Roaming: Some networks, like O2, Tesco, Smarty, and Lyca Mobile, offer roaming as standard, while others may limit it to premium plans.
• 5G Coverage: Coverage varies, so use a network’s coverage checker to confirm availability in your area.
• Extras: Certain plans include perks such as Spotify, Amazon Prime, or YouTube Premium on Vodafone, and entertainment bundles on EE.

Switching Networks and Keeping Your Number

1. Check if you’re out of contract by texting “INFO” to 85075.
2. Get a PAC code by texting “PAC” to 65075, then share it with your new provider to transfer your number.
3. Service Interruption: Minimal, often a few hours at most when porting your number.

SIM Card Sizes

Most networks offer a trio SIM (standard, micro, and nano sizes in one card). Newer phones typically use a nano SIM.