BT Full Fibre 900 is BT’s fastest residential FTTP plan, delivering average download speeds of 900 Mbps and uploads of 110 Mbps. The connection uses full fibre to the premises, with no copper in the last mile — so speeds stay consistent and don’t drop off over distance like FTTC. Suitable for simultaneous 4K video streams, low-latency gaming, and upstream-heavy tasks like cloud sync and video calls.
Plan options and monthly prices
BT offers Full Fibre 900 on two contract lengths. The 24-month plan costs £40.99 a month, increasing to £43.99 in March 2026 and £46.99 in March 2027, in line with BT’s annual CPI + 3.9% pricing policy. There’s no upfront cost on this deal.
The 12-month option is more flexible but priced higher. It’s £54.99 a month, rising to £57.99 in March 2026, and includes a one-off setup charge of £41.99. This version may suit renters or anyone not looking to commit for two years.
Both packages come with the same connection, speed, and hardware. The only difference is the contract length and what you pay each month.
Get BT Full Fibre 900 with Free Setup + Reward Card
Enjoy average speeds of 900Mbps, powerful Smart Hub 2, and fast, stable full fibre straight to your home. Limited-time offer includes £0 setup and an exclusive BT Reward Card.
See BT Full Fibre 900 DealsHalo bundles and extras
BT offers add-on bundles under the Halo name. Halo 3 includes the Smart Hub 2, BT Virus Protect, and Digital Voice — BT’s broadband-based home phone service. These extras push the total monthly cost up, with some customers paying over £94 depending on what’s included.
Halo 3 Complete Wi-Fi adds mesh discs to extend wireless coverage in larger or harder-to-cover homes. With everything included, this version can cost between £101 and £107 per month. These upgrades don’t change the 900 Mbps connection itself but help improve Wi-Fi signal across the property. They’re mainly useful in multi-floor homes or where thick walls weaken the wireless connection.
What speeds do you actually get?
BT’s Full Fibre 900 plan offers 900 Mbps down and 110 Mbps up as average speeds — and in real use over Ethernet, it holds up. Tests on capable devices show consistent speeds in the 850–920 Mbps range, and uploads that stay steady around 110 Mbps.
| Speed | BT Full Fibre 900 |
|---|---|
| Average Download Speed | 900 Mbps |
| Average Upload Speed | 110 Mbps |
| Stay Fast Guarantee (Download) | 700 Mbps |
| Stay Fast Guarantee (Upload) | 10 Mbps |
Wi-Fi speeds won’t hit those numbers because the Smart Hub 2 router is limited to Wi-Fi 5. In most setups, users get between 450 and 500 Mbps when close to the router. Performance drops if you’re further away or using older hardware. For better wireless speeds, a Wi-Fi 6/7 router or mesh system with wired backhaul is the way to go.
The plan also includes BT’s Stay Fast Guarantee, which ensures download speeds don’t drop below around 700 Mbps. If they do, BT provides help or compensation. That baseline alone beats what most fibre-to-the-cabinet lines can deliver, even on a good day.
Latency and gaming
With average latency under 10ms, BT Full Fibre 900 is well suited for gaming, live video, and any task that needs fast, stable response. It’s a full fibre connection, so there’s no copper section to cause jitter or unstable ping — even when several devices are online.
People using it for Xbox Cloud Gaming, PlayStation downloads, or Twitch livestreaming report smooth, lag-free performance. Evening slowdowns aren’t a concern because FTTP doesn’t rely on shared street cabinets the way cable does.
Going for Halo 3 gives you extra Wi-Fi kit and better support, but the low latency is already there with the standard Full Fibre 900 setup.
Router and Wi-Fi setup
Smart Hub 2 comes included with the plan. It supports BT Digital Voice and is simple to use, but it’s a Wi-Fi 5 router, so it won’t deliver full gigabit speeds wirelessly. Most users on Wi-Fi will see around 500 Mbps near the router.
To get better wireless throughput, you can rent the EE Wi-Fi 7 router for £10 per month. It supports faster Wi-Fi standards and performs better with newer phones and laptops.
If you’ve got Wi-Fi dead zones or a large property, you can set up a third-party mesh network using bridge mode on the BT router. Options like Deco, Orbi, or Eero give better coverage and stability than a single router.
Halo 3 Complete Wi-Fi is another option — it bundles in BT’s own mesh discs with setup and support included, making it easier for people who don’t want to configure things themselves
Support and service
BT Full Fibre 900 comes with a few extras — virus protection, Digital Voice, support tools, and the Stay Fast Guarantee, which promises minimum download speeds and help if your connection drops below that level. You can get support through the app, web chat, or by calling in.
If you’re on a Halo plan, you’ll also get priority support and access to BT’s home tech experts. That can be useful if you’re having Wi-Fi problems or need help setting things up.
Compared to most budget providers, BT’s support is more responsive — especially when it comes to fixing speed faults or dealing with Wi-Fi issues. They’re not perfect, but they do offer more hands-on help than many rivals.
Availability
BT Full Fibre 900 is only available in areas where Openreach has rolled out full fibre (FTTP). That now covers most urban postcodes, but many rural or less-built-up areas are still waiting. If FTTP isn’t live at your address, BT will only offer you Fibre 1 or Fibre 2 — which use older part-copper (FTTC) lines and are much slower.
You can check if you’re covered using BT’s postcode checker or by entering your address on the Openreach website.
Comparing with other plans
BT Full Fibre 900 gives you roughly twice the download speed of BT’s Full Fibre 500 and boosts upload from 73 Mbps to 110 Mbps. You’ll usually pay around £10–£15 more per month, but if your household is busy with uploads, cloud storage, or multiple 4K streams, the extra speed makes a difference. If not, 500 will still handle most things comfortably.
| Plan | Download / Upload Speed | Router & Key Specs |
|---|---|---|
| BT Full Fibre 900 | 900 Mbps / 110 Mbps | Smart Hub 2 Wi-Fi 5 (802.11ac), Dual-band 2.4GHz/5GHz, 4x Gigabit Ethernet ports, DECT base for Digital Voice |
| Virgin Media Gig1 | 1130 Mbps / 104 Mbps | Virgin Hub 5 Wi-Fi 6 (802.11ax), DOCSIS 3.1 support, 1x 2.5Gbps Ethernet + 3x Gigabit ports, Intelligent channel management |
| Vodafone Full Fibre 910 | 910 Mbps / 105 Mbps | Vodafone Ultra Hub Wi-Fi 6E (802.11ax + 6GHz band), 2x Gigabit Ethernet ports, Mesh-compatible with Super Wi-Fi extenders, WPA3 encryption |
Virgin Media’s Gig1 is faster on paper with 1130 Mbps downloads, but it runs over DOCSIS cable — not true full fibre. That can mean more congestion in the evenings, plus lower upload speeds and slightly higher latency. BT’s FTTP connection tends to be more consistent.
Vodafone’s Full Fibre 910 matches BT for speed and sometimes undercuts it on price. But BT often pulls ahead when it comes to support, bundled extras, and optional hardware — especially with a Halo upgrade.
Who should go for it?
Full Fibre 900 suits homes with lots of connected devices — whether that’s 4K streaming, gaming, video calls, large uploads, or cloud backups happening at the same time. It’s also a strong choice for home workers, especially those dealing with big files, remote servers, or creative tasks like video editing.
If you just browse, watch the odd show, and don’t use many devices, this much speed might be overkill. But if you want a fast, stable connection that won’t slow down no matter what, this plan delivers.
Final verdict
If you’ve got FTTP coverage, BT Full Fibre 900 is the best you can get from BT. It’s fast, reliable, and good for everything from online gaming to working from home. You get strong uploads, low latency, and decent support, with extras like virus protection and Wi-Fi options if you need them.
The £40.99 monthly price on a two-year deal is competitive for gigabit-class broadband. Just remember — you’ll need a proper setup to reach top speeds on Wi-Fi, and prices go up every year.
