sim
6 networks on Three
10 attributes tracked each
Every value checked against the provider’s own site
| Network | Plans | Price rises | Data rollover | Full-speed data | 5G | eSIM | Tube coverage | Inclusive international calls | Unlimited data | EU roaming | Roaming data | Checked |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Three
Main
|
Rolling · 12m · 24m | Yes | No | Some caps | ✓ | ✓ | ✓ | No | Unlimited | Some plans | 12GB | Jul 2026 |
Honest Mobile
|
Rolling | None | No | Some caps | ✓ | ✓ | ✓ | No | 750GB | Some plans | 20GB | Jul 2026 |
iD Mobile
|
Rolling · 12m · 24m | None | Yes | Full speed | ✓ | ✓ | ✓ | No | Unlimited | Included | 30GB | Jul 2026 |
simp mobile
|
? | None | No | Full speed | ✓ | ✓ | ✓ | No | Unlimited | Included | Per plan | Jul 2026 |
SMARTY
|
Rolling | None | No | Full speed | ✓ | ✓ | ✓ | No | Unlimited | Included | 12GB | Jul 2026 |
Superdrug Mobile
|
Rolling | None | Yes | Full speed | ✓ | ✗ | ✓ | No | Unlimited | Included | 12GB | Jul 2026 |
✓ Yes
✗ No
Some On some plans / with conditions (hover for details)
? Unconfirmed
– Not applicable
What being on Three means
An MVNO buys wholesale access to a main network and resells it under its own brand, usually much cheaper. The trade-offs vary by network: some get every feature the host offers, others miss things like eSIM, visual voicemail or 5G Standalone, and traffic can be deprioritised at busy times. The table above shows the essentials — click any network for the full feature breakdown.
Feature and price data is checked by Scrimpr against each provider’s own site. Networks change plans often — always confirm on the provider’s site before buying. Some links are affiliate links, which support Scrimpr at no cost to you.