Out Of Data?

Fiver is the data only eSIM your network provider doesn't want you to know about. We built Fiver for the bit of month your data didn't stick around for.

FIVER BOLT ON

5GB

£5

Expires After 30 days

eSIM Delivered Instantly

How it works

  1. 1

    Pay your fiver

  2. 2

    Get your eSim instantly delivered

  3. 3

    Switch your mobile data to your Fiver eSim

What a fiver gets you

See how we compare with your network provider

Fiver

5GB of UK data for £5.00, valid 30 days

  • 5GB or more: yes5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: yesNothing to cancel
  • Open to everyone: yesOpen to everyone

EE

A single day of unlimited data, if you are already an EE customer. Fine for one day, but a fiver a day adds up fast

  • 5GB or more: only sometimes5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: yesNothing to cancel
  • Open to everyone: noOpen to everyone

O2

100MB for £5.50, which is gone before you have finished reading this

  • 5GB or more: no5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: yesNothing to cancel
  • Open to everyone: noOpen to everyone

Three

Nothing at a fiver. The cheapest one day Boost is £9

  • 5GB or more: no5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: noOpen to everyone

Vodafone

Depends on your plan, and they will not tell you until you log in

  • 5GB or more: no5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: noOpen to everyone

iD Mobile

Not quite a fiver. £6 buys 1GB and a whole new monthly plan

  • 5GB or more: no5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: yesOpen to everyone

SMARTY

2GB a month on a data only SIM, or 5GB with calls for £6

  • 5GB or more: no5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: yesOpen to everyone

Lebara

5GB with calls and texts, on a plan that bills you again in 30 days

  • 5GB or more: yes5GB or more
  • Instant eSIM: noInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: yesOpen to everyone

giffgaff

A top up. Their goodybags start above a fiver

  • 5GB or more: no5GB or more
  • Instant eSIM: noInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: yesOpen to everyone

VOXI

Nothing. Their entry plan is £10 a month for 20GB

  • 5GB or more: no5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: yesOpen to everyone

Tesco Mobile

500MB, plus minutes and texts you were not asking for

  • 5GB or more: no5GB or more
  • Instant eSIM: noInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: yesOpen to everyone

Honest Mobile

Nothing near it. Their smallest plan is £12.15 a month for 4GB

  • 5GB or more: no5GB or more
  • Instant eSIM: yesInstant eSIM
  • Nothing to cancel: noNothing to cancel
  • Open to everyone: yesOpen to everyone
Where these numbers came from

Read off each network's own pages on 2 August 2026. They change them without telling us, so have a look before you buy.

The questions everyone asks

Do I keep my number, and will WhatsApp still work?
Yes to both. Your normal SIM keeps your number, your calls and your texts, and Fiver only carries data. WhatsApp, iMessage and anything that texts you a code carry on as normal.
Does my normal SIM stay switched on?
It does. Fiver is digital, so nothing goes in your SIM tray. You point your mobile data at Fiver for a few days and then point it back.
Do I need to tell my network?
No. Your contract, your plan and your bill all stay exactly as they are, so there is nothing for them to know about.
What if 5GB is not enough?
Buy another one whenever you want. It is still a fiver each time and there is still nothing to cancel.
How do I cancel Fiver?
You cannot, because there is nothing there to cancel. It runs out on its own and you never hear from us again unless you come back.

Not sure about your phone? Check your model in ten seconds. Wondering something else? Read the rest of the answers.

OUT OF DATA?

Five pounds, 5GB, about a minute of your time, and then you can go back to whatever you were doing.

Get 5GB for £5