Lyca Mobile 100GB for £12 SIM deal: all the key information
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See what you get with Lyca's 100GB SIM only plan and how it compares to the competition and Lyca's own other deals. Last updated: 20th October 2025.
What’s the offer?
Get 100GB data for £12 a month on Lyca Mobile
The current best way to get 100GB data on Lyca Mobile is with their 12-month contract here:
It actually comes with 200GB in your first three months, before returning to 100GB. But we tend to ignore these types of offers. If you need 200GB, just go for a plan that permanently has 200GB!
We’d also ignore Lyca’s 3 months half price offer on 120GB. While it is £9 a month for 3 months, it actually averages out to £15.75 over the course of your contract. And at the end you’ll be paying the £18 a month so will need to switch.
All other options to get 100GB on Lyca currently work out more expensive. See under the dropdown below:
Useful link: Get 100GB for £12 here
It’s a massive amount of data, for anyone
This is a great deal for anyone who knows they are a massive user of data. Or if you’re buying for someone else, who you don’t want risk going over data limits.
100GB is loads of data. It would let you stream YouTube in hi-definition for something like 30 hours solid! Or with Spotify, it’s in the region of 20 days’ solid at CD quality (320 kbps).
The deal comes with unlimited UK minutes and texts and also lets you roam in the EU at no extra cost (up to 12GB data per month). Even local calls and texts are included while roaming in Europe too.
Like all Lyca plans, you even get some minutes to call international countries included for the price (100 minutes). You get a lot for your £12. And your price won’t go up mid-contract either.
Useful link: Best networks for international calls
It’s 100GB to use on a provider on EE’s network
One of the best reasons to join Lyca Mobile is the fact they use the EE network. You’ll be able to access the UK’s biggest 4G and 5G network for coverage. Everywhere there’s EE, there’s Lyca Mobile (check here).
Speed-wise, we’ve never found evidence of any top speed caps on Lyca in our own testing (on EE directly, most plans are capped). Typical downloads on EE hit 44 Mbps for 4G and 96 Mbps for 5G.
You can also join Lyca Mobile on an eSIM. We’ve done it ourselves for our Lyca Mobile review and the experience is genuinely impressive. You can be up and running on the network within minutes.
Overall, Lyca Mobile aren’t flawless. They’re a cheap provider. Their customer service isn’t great. WiFi calling still doesn’t work. But you are getting what you pay for: a whole load of usage for just £12.
Useful link: Join Lyca Mobile now