From: £28.00 (Inc VAT) / month

  • 5G ready
  • No speed limiting
  • Unlimited data *
  • Triple cut to support standard, micro, & nano SIM sizes
  • Perfect for 4G/5G routers and MiFi devices
  • Choose from a monthly rolling contract or fixed term over 12/24 month

By purchasing and using our SIM card solutions, you agree to be bound by these Terms and Conditions.

SKU: O2-UNL-SIM Category: Tags: , , ,

O2 Unlimited Data SIMs: Stay Connected, Stay Free

Experience the freedom of unlimited data with O2’s SIM-only deals. Whether you’re a content creator, a business professional, or a social media enthusiast, these SIMs have you covered.

Unlimited Data: Say goodbye to data caps with unlimited data, so you can browse, download, and stream without worrying about running out.*

Triple Cut SIMs: The SIMs come in three sizes—standard, micro, and nano—making them compatible with any device such as your MiFi device, tablet, or 4G/5G broadband router.

5G Ready: Get ready for the future of connectivity. O2’s SIMs are 5G-ready, ensuring lightning-fast speeds and low latency wherever 5G coverage is available.

Unrestricted Speed: O2’s SIMs are provide without speed throttling. Enjoy the full power of 4G and 5G networks without any limitations.

Flexible Plans: Starting at just £28 per month, our SIM-only deals offer great value. Choose the plan that suits your needs.

Perfect for Mobile Broadband Routers and MiFi Devices: Whether you’re at home, in the office, or on the move, O2’s unlimited data SIMs are ideal for use with 4G/5G mobile broadband routers or portable MiFi devices.

Stay connected, stay productive, and stay entertained with O2’s unlimited data SIMs!


*In line with O2’s acceptable use policy of 650GB


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