Independent mobile deals advice line — open Mon–Sat Call now: 0330 059 9027
Thornfield SIM Monthly deals, compared 0330 059 9027Mon–Sat, 9am–7pm
Light User
from £6/month
  • Around 1–5GB data
  • Unlimited UK minutes & texts
  • 30-day rolling, no long tie-in
  • Good as a second SIM or for older phones

Suits people who are on Wi-Fi most of the day and use mobile data mainly for texts, calls and maps.

Call about this
Heavy User
from £18/month
  • Unlimited data on most networks
  • Unlimited UK minutes & texts
  • Tethering / personal hotspot options
  • Extended EU/international roaming add-ons available

Aimed at heavy streamers, remote workers, and anyone regularly tethering a laptop or tablet.

Call about this
Family / Multi-SIM
Ask for a quote
  • Multiple SIMs on one account
  • Mixed data allowances per user
  • Often discounted per additional line

For households moving more than one number across at once — we compare multi-line pricing across networks.

Call about this
Data-Only SIM
from £5/month
  • Data allowance, no voice/text bundle
  • Suited to tablets, routers & hotspots
  • Flexible short terms

Good for a tablet, mobile Wi-Fi router, or a backup connection for home broadband.

Call about this
Senior / Low-Cost
from £4/month
  • Small data allowance, generous minutes
  • No app or online account needed
  • Phone support throughout

Built for people who mainly use their phone for calls and texts and want a low, predictable bill.

Call about this

Figures above are representative starting prices based on typical UK SIM-only market rates at time of writing. They are not a live quote, are not guaranteed, and are not offers from any specific network. Actual pricing depends on the network, promotion, contract length, your credit check outcome and your postcode's coverage — our team confirms current, accurate pricing on the call.

Worth checking before you switch

Questions our team usually asks

QuestionWhy it matters
How much data do you use in an average month?Helps rule out over- or under-buying a data allowance.
Do you travel to the EU or abroad often?Roaming allowances vary a lot between networks and tariffs.
Are you currently mid-contract?Early exit fees or notice periods can affect timing of a switch.
What's your postcode area?Coverage quality differs by network and by location.
Do you want to keep your existing number?We'll talk you through the standard UK number-porting process.

Get a live quote for your usage

Call us and in a few minutes we'll tell you which category above fits you best, with real current pricing.

Call 0330 059 9027