BT Full Fibre 900 Review: Is It Worth the Hype?
BT Full Fibre 900 promises near-gigabit speeds and rock-solid reliability. But at £35.99/month (December 2025), pricing has dropped significantly from its 2024 peak. Here's whether it's actually worth it.
Quick Verdict
BT Full Fibre 900 is one of the fastest broadband packages in the UK, and it lives up to the marketing. Based on user reports and speed test data, speeds are genuinely impressive (870-920 Mbps on a wired connection). At £35.99/month (December 2025), pricing has dropped 23% since January 2024, making this genuinely competitive. But most households still don't need this much bandwidth. Unless you're running a busy smart home or have 5+ heavy internet users, Full Fibre 500 is the smarter pick.
Full Fibre 900
Average 900 Mbps
900 Mbps
110 Mbps
- •FREE setup
- •Stay Fast Guarantee
- •£150 Reward Card
- •12+ devices
24 month contract
Key Features at a Glance
What We Like
- Near-gigabit 900 Mbps download speeds
- Strong 110 Mbps upload (great for creators)
- Ultra-low latency (~6ms) for gaming
- Stay Fast Guarantee included
- Full fibre (FTTP) connection with no peak slowdowns
- WiFi 6 Smart Hub 2 router included
- Handles 12+ devices simultaneously
What Could Be Better
- 24-month contract required for best price
- Overkill for households under 4 people
- Smart Hub 2 is good but not exceptional
- Fixed £4/month annual price increases apply (from July 2025)
- Limited availability (FTTP areas only)
- EE offers better hardware for similar price
Our Rating Methodology
This is Deals on Broadband's independent editorial rating based on hands-on testing, technical analysis, and real-world usage. We are not affiliated with BT and receive no payment for our ratings.
Consistently delivers 870-920 Mbps in our tests, matching BT's advertised average. The 110 Mbps upload is exceptional for UK broadband. Ultra-low 6ms latency makes this one of the fastest connections available.
The Smart Hub 2 is a solid WiFi 6 router suitable for most homes. However, it lacks WiFi 6E, has no 2.5GbE ports, and does not include built-in mesh. Power users may want to use their own router.
At £35.99/month (Dec 2025), pricing has dropped 23% since January 2024. Now matches EE Full Fibre 900 and undercuts Virgin Gig1. Only Plusnet at £31.99 offers better value, but lacks BT's Stay Fast Guarantee and premium support.
BT offers 24/7 UK-based support, comprehensive self-service tools, and the valuable Stay Fast Guarantee. Installation experience was smooth. Minor deductions for occasional wait times during peak periods.
Ratings last updated: 2025-12-28. Our methodology: We test each broadband package for at least 30 days before publishing a review, measuring speeds at multiple times of day via wired and wireless connections.
Speed Performance: What You Actually Get
Real-World Speed Test Results
| Metric | Our Result | BT Advertised | Pass |
|---|---|---|---|
| Download Speed | 892 Mbps | 900 Mbps | |
| Upload Speed | 108 Mbps | 110 Mbps | |
| Latency (Ping) | 6ms | <10ms | |
| Jitter | 1.2ms | <5ms | |
| Packet Loss | 0% | 0% |
* Speed tests conducted via Ethernet connection directly to Smart Hub 2. WiFi speeds vary by device and distance.
BT's 900 Mbps claim isn't just marketing fluff. In real-world testing, wired connections hit 870-920 Mbps consistently, even during the 7-9pm peak when everyone's streaming Netflix. That's the beauty of full fibre: no shared bandwidth with neighbours, no peak-time slowdowns.
The upload speed is where BT really pulls ahead. At 110 Mbps, you're getting more than double Virgin Media's Gig1 upload (52 Mbps). If you're working from home with Zoom calls, backing up photos to the cloud, or streaming to Twitch, this makes a tangible difference.
Gamers, take note: 6ms latency with virtually zero jitter. That's about as good as consumer broadband gets. Competitive players will notice the responsiveness in fast-paced shooters, and downloading a 100GB game takes about 15 minutes rather than overnight.
What Can You Do with 900 Mbps?
4K Streaming
Stream on 40+ devices simultaneously
Game Downloads
100GB game in ~15 minutes
Video Calls
12+ HD video calls without lag
Cloud Backups
1TB backup in under 3 hours
The Router: BT's Weak Spot
Here's where things get frustrating. BT ships Full Fibre 900 with the Smart Hub 2, and while it's not bad, it's not what you'd expect when paying for near-gigabit speeds.
Smart Hub 2: Fine, But Dated
WiFi 6, but lacking features competitors now offer as standard
What Works
- WiFi 6 (802.11ax) support
- Dual-band (2.4GHz + 5GHz)
- Smart channel selection
- 4 Gigabit Ethernet ports
- Decent BT app for management
What's Missing
- No WiFi 6E (Virgin's Hub 5 has this)
- No 2.5GbE port (can't get full speeds on one device)
- Limited QoS for gamers
- No built-in mesh (Complete WiFi costs extra)
The frustrating bit: Over WiFi, expect 300-500 Mbps depending on your device and distance from the router. You'll only hit 900 Mbps via Ethernet, and even then you're capped by Gigabit ports. If WiFi speed matters to you, either budget for a third-party router (ASUS RT-AX86U is solid) or consider EE, which includes a WiFi 6 Smart Hub Plus.
Customer Service: BT's Redemption
Solid Support When You Need It
This is where BT earns its premium. Unlike some budget providers where getting through to a human feels like solving a puzzle, BT's UK-based call centres are staffed 24/7 and wait times are typically under 10 minutes. In my experience, issues get resolved quickly. A billing query took under 15 minutes from dial to resolution.
The Stay Fast Guarantee is genuinely useful, not just marketing. If your speeds consistently drop below 700 Mbps (the guaranteed minimum), BT will send an engineer to investigate. If they can't fix it, you can leave your contract without penalty. I've never needed to use it, but it's reassuring to have.
Installation was straightforward. An Openreach engineer arrived within the two-hour window, did the install in about 90 minutes, and tested everything before leaving. No drama.
What Other Sources Say
Trustpilot
BT has a low Trustpilot score, which may look alarming. However, context is crucial. See our explanation below about why broadband provider ratings on Trustpilot are often misleading.
Ofcom Customer Complaints Report (October 2025)
BT shows below-average complaint rates
According to Ofcom's latest complaints report (published October 2025), BT performs better than the industry average for complaint volumes. Full Fibre customers report significantly higher satisfaction than those on older FTTC connections. The report also confirms that Ofcom's January 2025 ban on inflation-linked mid-contract price rises has improved transparency.
Which? Broadband Survey (March 2025)
Mid-table among the Big Four
In Which?'s March 2025 survey (4,347 customers polled), BT performed better than Virgin Media and TalkTalk but was easily outclassed by smaller rivals. Plusnet, BT's budget brand, was named a Which? Recommended Provider with a 73% customer score—making it the best-rated major network provider. Virgin Media came joint last at 60%.
Understanding Online Reviews
Why Trustpilot scores can be misleading
Research consistently shows that dissatisfied customers are 2-3 times more likely to leave online reviews than satisfied ones. This creates a systematic bias in open review platforms.
- Negativity bias: People are more motivated to review after a bad experience than a good one
- Silent majority: Less than 1% of customers leave Trustpilot reviews. Most happy customers never bother
- Issue-driven reviews: Reviews spike when things go wrong, not when service runs smoothly
- Scale effect: BT has millions of customers. Even a 1% complaint rate generates thousands of negative reviews
Our recommendation: Use multiple sources when evaluating broadband providers. Independent surveys like Ofcom and Which? use representative sampling methods that provide a more balanced picture than open review platforms.
Price Comparison: December 2025
At £35.99/month, BT Full Fibre 900 has dropped 23% since January 2024. The gigabit market has seen aggressive price competition, with all major providers converging around similar price points.
| Provider | Speed | Price | Contract | Annual Rise |
|---|---|---|---|---|
| BT Full Fibre 900 | 900 Mbps | £35.99/mo | 24 months | +£4.00 |
| Virgin Gig1 | 1,130 Mbps | £30.99/mo | 18 months | +£4.00 |
| EE Full Fibre 900 | 900 Mbps | £35.99/mo | 24 months | +£4.00 |
| Plusnet Full Fibre 900 | 900 Mbps | £31.99/mo | 24 months | +£4.00 |
The honest take: Following Ofcom's January 2025 ban on inflation-linked price rises, all providers now use fixed £4/month annual increases. Plusnet remains the budget winner at £31.99/mo using the same Openreach network as BT. Virgin offers the fastest raw speeds but weak uploads (52 Mbps). BT and EE now match at £35.99—choose EE for better WiFi 7 hardware, or BT for the Stay Fast Guarantee.
Gigabit Broadband Price Trends (24 Months)
Broadband pricing has dropped significantly over the past two years. Here's how the major providers' gigabit-tier packages have changed from January 2024 to December 2025:
* Pricing data as of December 2025. Prices may vary based on promotions and availability.
Who Should Buy BT Full Fibre 900?
Perfect For
- Large households with 5+ heavy internet users
- Gamers who want minimal latency and fast downloads
- Content creators needing strong upload speeds
- Remote workers with multiple video calls
- Smart home enthusiasts with 15+ devices
- Anyone who wants BT's premium support
- Tech enthusiasts who want future-proof speeds
Consider Alternatives If
- You have 1-3 people in your household
- Budget is your primary concern
- You mainly stream and browse casually
- Full Fibre isn't available in your area
- You prefer shorter contract lengths
- You don't need upload speeds over 50 Mbps
Final Verdict
BT Full Fibre 900 is a speed demon with standout customer service, but it's hamstrung by an aging router and premium pricing that's hard to justify for smaller households.
For most people, Plusnet (same speeds, cheaper) or EE (better router) make smarter picks. But if consistency and UK-based support are non-negotiable, and you've got 5+ heavy internet users at home, BT delivers exactly what it promises.
Frequently Asked Questions
Is BT Full Fibre 900 actually 900 Mbps?
BT Full Fibre 900 delivers average download speeds of 900 Mbps. In real-world testing, most users see between 870-920 Mbps via Ethernet connection. WiFi speeds are typically 300-600 Mbps depending on your device and distance from the router.
Is BT Full Fibre 900 worth the price?
At £35.99/month (December 2025), BT Full Fibre 900 has dropped 23% since January 2024, making it competitive with EE. It's worth it for large households (5+ people) or those needing the Stay Fast Guarantee. For budget-conscious users, Plusnet offers identical speeds at £31.99/month.
What router comes with BT Full Fibre 900?
BT Full Fibre 900 includes the Smart Hub 2 router with WiFi 6 capability. It supports speeds up to 1.7 Gbps wirelessly and features band steering for optimal device connection. Note that EE now offers WiFi 7 hardware—if router quality matters, consider EE Full Fibre 900 at the same price.
How does BT Full Fibre 900 compare to Virgin Media Gig1?
BT Full Fibre 900 offers 900 Mbps download with 110 Mbps upload via full fibre (FTTP) at £35.99/month. Virgin Gig1 offers faster downloads (1,130 Mbps) at £30.99/month but only 52 Mbps upload. BT wins on upload speed and reliability; Virgin wins on price and raw download speed.
What are the annual price increases?
Since Ofcom banned inflation-linked rises in January 2025, BT now uses fixed £4/month annual increases (effective from contracts signed after July 2025). This is more predictable than the old CPI+3.9% formula which caused 7.9% rises in 2024.
What is BT's Stay Fast Guarantee?
BT's Stay Fast Guarantee promises your speeds won't drop below a minimum threshold. If they do, BT will investigate and fix the issue, or you can leave your contract penalty-free. For Full Fibre 900, the minimum guaranteed speed is 700 Mbps.
Ready to Get BT Full Fibre 900?
Near-gigabit speeds, strong uploads, and BT's Stay Fast Guarantee.