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Fuse
Free eSIM trial

Try Fuse freefor 7 days.

A free eSIM trial on all four UK networks — EE, Three, Vodafone and O2. Test the coverage on your own phone, in your own places, before you pay a penny. No charge during the trial, cancel anytime.

Start your free trialSee plans & pricing

Is there a free eSIM trial in the UK?

Yes — Fuse Mobile offers a 7-day free eSIM trial in the UK. You install a multi-network eSIM that uses all four UK networks and switches to the strongest signal automatically, then test it on your own phone for a week. Nothing is charged during the trial, and you can cancel anytime.

TL;DR

  • 7-day free eSIM trial — a full week to test multi-network coverage where you live and work.
  • All four UK networks (EE, Three, Vodafone, O2) on one eSIM, switching automatically.
  • No charge during the trial. Cancel any time before day 7 and you pay nothing.
  • Install by QR code in minutes — see plans from £5.99/month after the trial.

How the free eSIM trial works

A free trial is only useful if it tests the real thing. That is why the Fuse trial is a genuine multi-network eSIM — not a demo — so you experience exactly how your phone moves between EE, Three, Vodafone and O2 in the places a single-network SIM lets you down. Because it is an eSIM, there is nothing to post and setup takes a few minutes.

  1. 1

    Check your phone supports eSIM

    iPhone XS or newer, Galaxy S20 or newer, Pixel 3 or newer, most 2020+ flagships. Full list at /devices.

  2. 2

    Start your free trial

    Sign up in a couple of minutes. We set up your payment method for later, but nothing is charged during the 7-day trial.

  3. 3

    Scan the QR code you receive by email

    Open Camera (iPhone) or eSIM settings (Android), scan, and your phone is on all four UK networks.

  4. 4

    Test it for 7 days

    Use it exactly as you would your normal SIM. Keep it and it rolls into a plan from £5.99/month — or cancel before day 7 and pay nothing.

Start your free trial

A genuinely no-risk trial

7 full days

Enough time to test coverage across a whole week, not a quick demo.

No charge during the trial

Cancel any time before day 7 and you pay nothing. No contract, no exit fee.

Data-only eSIM

Keeps your existing number and calls; adds multi-network data on all four UK networks.

Want the detail first? See how Fuse works, check UK coverage in your area, or read the full multi-network eSIM guide.

Yes. Fuse Mobile offers a 7-day free eSIM trial in the UK. You install a multi-network eSIM that connects to all four UK networks — EE, Three, Vodafone and O2 — and test the coverage on your own phone, in the places you actually use it, before you pay anything. Nothing is charged during the 7-day trial.
The Fuse free trial runs for 7 days from the moment your eSIM activates. That gives you a full week — home, commute, work, weekend — to see whether multi-network coverage genuinely fixes the signal gaps a single-network SIM leaves you with.
No. The trial itself is free — you are not charged while it runs. We set up your payment method during sign-up so your plan continues seamlessly if you decide to stay, but no payment is taken during the 7-day trial. If you cancel before it ends, you pay nothing.
If you do nothing, your trial rolls into a rolling monthly plan from £5.99 — Spark (5GB), Pulse (10GB + roaming) or Surge (15GB + roaming) — with no contract. If you cancel before day 7, the eSIM simply stops and you are not charged.
Yes, any time. You can cancel from your account in a couple of taps before the 7 days are up and you will not be charged. There is no contract and no exit fee — the trial is genuinely no-risk.
Any eSIM-capable phone: iPhone XS or newer, Samsung Galaxy S20 or newer, Google Pixel 3 or newer, and most flagships from 2020 onwards. Because it is an eSIM, there is no card to post — you install it by scanning a QR code and you are connected in minutes. Check your model on our devices list.

Related reading

7 days free

Try every UK network.
Free for 7 days.

Install by QR code, test multi-network coverage on your own phone, and pay nothing during the trial.

Start your free trialSee plans

No contract. Cancel anytime.