Worth investigating when fixed options are limited or you need a flexible setup. Indoor reception and network load can make performance more variable.
The route to your router.
Mobile radio · Varies with signal, network and location
A simplified illustration of the access connection. The exact equipment and installation route vary by network and property.
What to weigh up.
Where it helps
- May avoid a new fixed-line installation.
- Can provide another option where fixed-network choice is limited.
- Some offers have flexible terms; compare the actual contract.
What to check
- Coverage maps are predictions, not guarantees of indoor speed.
- Building materials, router position and congestion affect performance.
- Check data policies, latency and any restrictions relevant to your use.
Why testing indoors matters
A mobile signal outside your building does not guarantee the same performance at a desk or television inside. Walls, glazing and the router’s position can change reception.
Check the network’s coverage guidance and any trial or return terms before committing. Test the connection at the times you actually use it, including busy evenings.
Speed is only part of the decision
Mobile broadband performance can fluctuate with reception and network load. For video calls and games, stability, latency and packet loss matter alongside download speed.
If you need remote access to equipment at home, ask about IP addressing and carrier-grade NAT. Check the provider’s policy for tethering, data use and the supplied router.
A useful alternative or backup
5G can be an alternative while waiting for fixed full fibre or a second connection for resilience. If continuity is important, check that your router supports the failover behaviour you need and that mobile reception remains usable during an outage.
Your questions, answered.
Will 5G always be faster than FTTC?
No. A strong mobile connection may be fast, but actual performance varies with indoor signal, network load and equipment. Compare tests and provider estimates for your property.
Is 5G home broadband full fibre?
No. The link into the home is wireless. Fibre may support the mobile network behind the scenes, but the home access connection uses radio.
Sources & further reading
Official information behind this guide. Links checked 29 October 2026; individual datasets retain their stated reference dates.