SIM only comparison

SIM only, with the small print in plain view

A SIM only plan is the cheapest way to keep a phone you already own. The differences that matter are the host network, roaming rules and what happens when the network is busy.

Rolling term

Halden Connect

5GB

data per month

EU roaming included

£4/moDetails

Rolling term

Cobalt

20GB

data per month

Data rollover

£6/moDetails

Rolling term

Grid Telecom

100GB

data per month

5G at no extra cost

£13/moDetails

12 months term

Northline Mobile

Unlimited

data per month

Tethering unrestricted

£18/moDetails

24 months term

Fellside Mobile

Unlimited

data per month

Priority network access

£22/moDetails

Keeping your number

Text PAC to 65075, hand the code to your new provider and the switch completes within a working day. Do not cancel your old plan yourself.

Read the switching guide

Placeholder dataExample plans. Structured tariff data, availability and affiliate links attach to each card later.