Mozillion plans & features
The essentials
| Price rises | None No mid-contract price increases across its 30-day, 12- and 24-month SIM-only plans. |
|---|---|
| Data rollover | No Unused data doesn't roll over month to month (per Mozillion's own FAQ). |
| Full-speed data | Full speed Plans are advertised with uncapped 5G speeds. |
| 5G | ✓ Plans advertise 5G speeds. |
| eSIM | Some Offers a global travel eSIM; eSIM on its UK SIM-only plans is unconfirmed. |
| Tube coverage | ✓ You get Tube coverage through EE’s network. TfL station WiFi has been superseded by 4G/5G mobile coverage in tunnels and stations, rolled out by all four networks and growing across the lines — just use your phone and it connects automatically. |
| Inclusive international calls | No International calls are charged per minute or via a paid add-on — not included in the plan. |
| Unlimited data | Unlimited Genuinely unlimited data — no monthly fair-use cap (speed may be deprioritised at busy times; see Full-speed data). |
| EU roaming | Included Free EU roaming in 41 destinations. |
| Roaming data | Per plan EU roaming is a share of your plan - up to 25% (3-100GB plans), up to 50% (1GB plans), up to 25GB (500GB/unlimited). |
Technical details
| Roaming countries | EU (41) Free EU roaming in 41 countries. |
|---|---|
| Tethering / hotspot | ✓ Hotspot enabled on all plans — share your data with other devices. |
| 5G Standalone | ? |
| WiFi calling | ✓ Wi-Fi calling is listed as a benefit on all plans. |
| Roaming beyond the EU | Roaming works in 200+ non-… |
| 4G calling (VoLTE) | ✓ |
| RCS messaging | ✓ |
| RCS encryption | ✗ |
| Conference calling | ? |
| Missed call alerts | ? |
| Visual voicemail | ✗ |
| HD Voice | ✓ |
| Carrier IMS | ✓ |
| Carrier voicemail | ? |
| Inclusive MMS | ? |
| IPv6 | ? |
| Roaming agreements | ✓ DIRECT |
| 5G roaming | ✓ |
| 4G calling abroad | ? |
Mozillion FAQ
What network does Mozillion use?
Mozillion is an MVNO: it runs on EE's masts, so you get the same signal and coverage as EE, usually at a lower price.
Can I use Mozillion abroad in the EU?
Mozillion includes EU roaming. Free EU roaming in 41 destinations.
Does Mozillion have 5G?
Yes — Mozillion includes 5G. Plans advertise 5G speeds.
Does Mozillion support eSIM?
Yes — Mozillion supports eSIM on some plans. Offers a global travel eSIM; eSIM on its UK SIM-only plans is unconfirmed.
Does Mozillion put prices up mid-contract?
Yes — Mozillion raises prices during your contract. No mid-contract price increases across its 30-day, 12- and 24-month SIM-only plans.
Other SIMs on the EE network
Same masts, same coverage — different prices and features.
Feature and price data is checked by Scrimpr against Mozillion's own site and public documentation. Networks change plans often — always confirm details on the provider's site before buying. Some links are affiliate links (marked *), which support Scrimpr at no cost to you.
