Pay Monthly SIM Only

Pay Monthly SIM Only

SIM Only contracts are a great way to save money on your mobile bill. You can choose a contract length between 30 days and and 2 years.  Generally 12 month contracts hit the "sweet spot" of value and flexibility, but 24 months and the newer 18 month contracts are becoming more competitive.

  • All Deals
  • 12 month
  • 24 month
  • 1 month
  • 18 month
  • Network
  • All categories
  • BT
  • EE
  • giffgaff
  • iD Mobile
  • Lebara Mobile
  • O2
  • Plusnet
  • Smarty
  • Tesco Mobile
  • Three
  • Virgin Mobile
  • Vodafone
  • Voxi
1 2GB 1 month Lebara Mobile SIM Only
2 2GB 18 month BT SIM Only
3 1GB 24 month Three SIM Only
4 4.5GB 1 month Plusnet SIM Only
5 4GB 12 month Three SIM Only
6 3GB 1 month iD Mobile SIM Only
7 3GB 12 month Virgin Mobile SIM Only
8 2.5GB 1 month Plusnet SIM Only
9 2GB 1 month iD Mobile SIM Only
10 2GB 12 month Vodafone SIM Only
11 1GB 1 month iD Mobile SIM Only
12 1GB 12 month Three SIM Only
13 500MB 12 month Virgin Mobile SIM Only
14 300MB 1 month Virgin Mobile SIM Only
15 3GB 1 month Plusnet SIM Only
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WhatSIM fairness promise

The prices on this page are sorted by Price Score

To calculate price score we combine price, data amount and contract term into a single number that is sorted in Ascending order. When the price price is the same we use Price (asc) > data (desc) > term length (asc) > offer age (desc) to determine the sort order.

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