Unlimited data SIM only deals

If you regularly stream video, game on the go, or use your phone as a hotspot, an unlimited plan removes the worry of running out of data or facing extra charges.

If you mostly use Wi-Fi at home and work, a large fixed allowance such as 50GB or 100GB is often cheaper and more than enough.

Most UK unlimited plans are genuinely uncapped for everyday use, but some networks apply fair-use limits on tethering or set maximum speeds on their cheaper tiers.

It's worth checking the small print for any speed caps before choosing, particularly if you want the fastest possible 5G speeds.