Best for most people - Lycamobile - 10GB for £5 (first month £2.50)

Best for heavy users - Three - 120GB for £12

Best unlimited - Lycamobile - £18 (first six months £9)

Best for most people - Lycamobile - 10GB for £5 (first month £2.50)

This is the best deal for most people because:

The average data use in the UK is 9GB per month.

It's a good idea to have an allowance higher than that because running out of data is expensive.

You get unlimited minutes & texts.

You can use your plan in the EU without additional charges (up to 2.5GB data per month).

The closest equivalent deal from another network is:

25GB for £5.99 with Asda Mobile

If you know you're a very low user, these deals are also worth considering:

5GB for £4.25 (first 3 months £2.13) with Lycamobile

5GB for £4.99 with Asda Mobile

The closest equivalent deals from EE, O2, Three and Vodafone are:

8GB for £7 or 25GB for £8 with Three (increases by £1.25 in April 2026)

25GB for £17 with EE (increases by £1.50 in March 2026 and data speeds are capped to 100Mbps)

12GB for £17.99 with O2 (increases by £1.80 every April)

5GB for £18 with Vodafone (increases by £1.80 in April 2026)

Best for heavy users - Three - 120GB for £12

Monthly cost until March 2026: £12

Monthly cost from April 2026: £13.50

Average Monthly Cost (total cost divided by the 24 month term): £12.69

This is the best deal for heavy users because:

120GB per month is enough for the vast majority of people.

This deal provides that for a very low price and without any speed restrictions.

The closest equivalent deal from another network is:

120GB for £16 (first 6 months £8) with Lycamobile

100GB for £16 with Grade Mobile

The closest equivalent deals from EE, O2 and Vodafone are:

150GB for £19.99 with O2 (increases by £1.80 every April)

100GB for £19 with EE (increases by £1.50 in March 2026 and data speeds are capped to 100Mbps)

150GB for £25 with Vodafone (increases by £1.80 in April 2026)

Best unlimited - Lycamobile - £18 (first 6 months £9)

Monthly cost first six months: £9

Monthly cost for the following 18 months: £18

Average Monthly Cost (total cost divided by the 24 month term): £15.75

This is the best unlimited deal because:

You get both unlimited usage and maximum speed performance.

You also get unlimited minutes & texts.

You can use your plan in the EU without additional charges (up to 30GB data per month).

The closest equivalent deals from other networks are:

£18 with Three (increases by £1.50 in April 2026)

£23 with Asda Mobile (data speeds are capped to 150Mbps)

The closest equivalent deals from EE, O2 and Vodafone are:

£26.99 with O2 (increases by £1.80 every April)

£24 for the first 12 months, £48 thereafter with EE (also increases by £1.50 in March 2026)

Cheaper EE unlimited plans are available but those have speed restrictions.

£36 with Vodafone Unlimited Max (increases by £1.80 in April 2026)

Cheaper Vodafone unlimited plans are available but those have speed restrictions.

We compared 169 deals from our providers before handpicking the deals above.

If you'd like further information about any of these deals please contact our experts here.

You can also view our recommended no contract and 12 month SIM only deals here.