343 real plans in the US, last updated 28 Oct 2026How we check

UK provider · deep dive

SMARTY, plan by plan

SMARTY offers mobile plans in the UK. Every plan in our data is below, with the real monthly cost worked out, not just the headline price.

Country
UK
Plans in our data
26
Real monthly range
£5.00 to £20.00
Contract terms
none listed, 1 months
Seen from above, a person at a white desk checking figures on a laptop spreadsheet, with a calculator, notebook and paperwork beside them.

Lowest real monthly cost here

£5.00/mo

Across 26 plans in our data, fees and promos included.

In short

We list 26 SMARTY plans, match them to your postcode, and rank them by real monthly cost: from £5.00/mo.

Plans from SMARTY

26 plans in our data

  • Lowest monthly hereNo fixed term listed

    2GB data-only SIM

    Standard £5.00/mo · Nationwide

    £5.00/moSame price all 24 months
    £5.00 per month. Same price all 24 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£5.00/moover 24 months, estimated
    Details
  • No fixed term listed

    2GB data-only SIM

    Standard £5.00/mo · Nationwide

    £5.00/moSame price all 24 months
    £5.00 per month. Same price all 24 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£5.00/moover 24 months, estimated
    Details
  • 1-month contract

    5GB SIM only

    Standard £6.00/mo · Nationwide

    £6.00/moSame price all 1 months
    £6.00 per month. Same price all 1 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£6.00/moover 1 months
    Details
  • 1-month contract

    5GB SIM only

    Standard £6.00/mo · Nationwide

    £6.00/moSame price all 1 months
    £6.00 per month. Same price all 1 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£6.00/moover 1 months
    Details
  • 1-month contract

    16GB SIM only

    Standard £8.00/mo · Nationwide

    £8.00/moSame price all 1 months
    £8.00 per month. Same price all 1 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£8.00/moover 1 months
    Details
  • 1-month contract

    16GB SIM only

    Standard £8.00/mo · Nationwide

    £8.00/moSame price all 1 months
    £8.00 per month. Same price all 1 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£8.00/moover 1 months
    Details
  • No fixed term listed

    15GB data-only SIM

    Standard £9.00/mo · Nationwide

    £9.00/moSame price all 24 months
    £9.00 per month. Same price all 24 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£9.00/moover 24 months, estimated
    Details
  • No fixed term listed

    15GB data-only SIM

    Standard £9.00/mo · Nationwide

    £9.00/moSame price all 24 months
    £9.00 per month. Same price all 24 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£9.00/moover 24 months, estimated
    Details
  • 1-month contract

    20GB SIM only

    Standard £9.00/mo · Nationwide

    £9.00/moSame price all 1 months
    £9.00 per month. Same price all 1 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£9.00/moover 1 months
    Details
  • 1-month contract

    20GB SIM only

    Standard £9.00/mo · Nationwide

    £9.00/moSame price all 1 months
    £9.00 per month. Same price all 1 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£9.00/moover 1 months
    Details
  • 1-month contract

    40GB SIM only

    Standard £10.00/mo · Nationwide

    £10.00/moSame price all 1 months
    £10.00 per month. Same price all 1 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£10.00/moover 1 months
    Details
  • 1-month contract

    40GB SIM only

    Standard £10.00/mo · Nationwide

    £10.00/moSame price all 1 months
    £10.00 per month. Same price all 1 months.
    Real monthly costPromo months, normal months and one-off fees added up, then divided by the months.£10.00/moover 1 months
    Details

Showing the 12 lowest-priced of 26 plans. Plans are listed per area: enter your postcode to see the ones sold where you live.

Where the monthly cost comes from

Each plan as a stack: every layer is part of the contract total, and the top of the stack is the real monthly cost we rank on. The dashed plate is the price an advert would lead with.

2GB data-only SIM

  • 24 months × £5.00£120.00

£120.00 ÷ 24 months = £5.00/mo real monthly cost, estimated: the top of the stack

Advertised price £5.00/mo: the dashed plate

2GB data-only SIM

  • 24 months × £5.00£120.00

£120.00 ÷ 24 months = £5.00/mo real monthly cost, estimated: the top of the stack

Advertised price £5.00/mo: the dashed plate

Best for

3 picks from our data

Picked by the content engine from the SMARTY plans above, using the same real monthly cost and allowances. It compares these plans with each other, not with the whole market.

Cheapest option
SMARTY 2GB data-only SIM at 5.00 GBP/mo
Most data
SMARTY Unlimited SIM only with unlimited data
No fixed-term contract
SMARTY Unlimited data-only SIM

How pricing works in your area

1 area on record
A long row of brick terraced houses with chimney stacks under a cloudy sky.
Your postcode decides which plans are shown: offers are listed for regions, and only the ones listed for your area are ranked.

Each plan is listed for a region. When you search a postcode, we find its region and only rank the plans listed for it. Plans for other regions are left out, never just pushed down.

RegionPlansLowest real monthly
No region restriction26£5.00/mo

The real monthly cost adds promo months, standard months and one-off fees, takes off guaranteed credits, and divides by the months in the term. Read the method. Region matching is not an address check: the provider confirms availability at checkout.

Search your postcode for mobile

What to watch for

14 things to check
Two people reading through printed contract paperwork at a grey table, with a pen, a smartphone and a tablet beside them.
Read the term, the price after the promo and any exit fee before you sign.
  • SMARTY 2GB data-only SIM: No fixed contract length provided; using a 24-month comparison term as an estimate.
  • SMARTY 15GB data-only SIM: No fixed contract length provided; using a 24-month comparison term as an estimate.
  • SMARTY 40GB data-only SIM: No fixed contract length provided; using a 24-month comparison term as an estimate.
  • SMARTY 100GB data-only SIM: No fixed contract length provided; using a 24-month comparison term as an estimate.
  • SMARTY Unlimited data-only SIM: No fixed contract length provided; using a 24-month comparison term as an estimate.
  • Mid-contract price rises are not included unless known. Check the provider's annual price change terms before you switch.
  • 5GB SIM only: 1-month fixed term. No early termination fee on record; check before you sign.
  • 16GB SIM only: 1-month fixed term. No early termination fee on record; check before you sign.
  • 20GB SIM only: 1-month fixed term. No early termination fee on record; check before you sign.
  • 40GB SIM only: 1-month fixed term. No early termination fee on record; check before you sign.
  • 100GB SIM only: 1-month fixed term. No early termination fee on record; check before you sign.
  • 150GB SIM only: 1-month fixed term. No early termination fee on record; check before you sign.
  • 200GB SIM only: 1-month fixed term. No early termination fee on record; check before you sign.
  • Unlimited SIM only: 1-month fixed term. No early termination fee on record; check before you sign.

Frequently asked questions

8 questions
Is SMARTY 5GB SIM only on a fixed contract?
Yes, SMARTY 5GB SIM only has a fixed contract length of 1 month.
Is SMARTY 16GB SIM only on a fixed contract?
Yes, SMARTY 16GB SIM only has a fixed contract length of 1 month.
Is SMARTY 20GB SIM only on a fixed contract?
Yes, SMARTY 20GB SIM only has a fixed contract length of 1 month.
Is SMARTY 40GB SIM only on a fixed contract?
Yes, SMARTY 40GB SIM only has a fixed contract length of 1 month.
Is SMARTY 100GB SIM only on a fixed contract?
Yes, SMARTY 100GB SIM only has a fixed contract length of 1 month.
Is SMARTY 150GB SIM only on a fixed contract?
Yes, SMARTY 150GB SIM only has a fixed contract length of 1 month.
Is SMARTY 200GB SIM only on a fixed contract?
Yes, SMARTY 200GB SIM only has a fixed contract length of 1 month.
Is SMARTY Unlimited SIM only on a fixed contract?
Yes, SMARTY Unlimited SIM only has a fixed contract length of 1 month.

Where mobile costs matter

Compare for the way you live

A smiling man in glasses leaning on a kitchen counter, looking at his smartphone.

Compare SMARTY in your area

Is SMARTY the cheapest mobile for your postcode?

Search your postcode and we rank SMARTY against every other mobile listed for that area, on real monthly cost. Sponsored placements are labelled and never change the order.

Search your postcode →

A UK residential street of red-brick Victorian houses with bay windows, cars parked along the kerb and a 20 mph sign.
Plans are listed per region: your postcode decides which ones are ranked.