BT Full Fibre 100 is the 3rd fastest of the BT full fibre packages with a speed of 150 Mbps ⬇ and an upload speed of 30 Mbps ⬆. Remarkably, it’s 3 times faster than BT Fibre 1 but costs only £2 times more per month. What does that actually mean in real terms? Well, it essentially means that you can download download 100 megabytes of information in 8 seconds, or to put in gaming terms, you can download Fortnite (29.2 gigabytes) in roughly 42 minutes with a BT Full Fibre 100 Mbps connection.
Priced at £34.99 per month with 3 months free on the current black Friday deal, this broadband-only with a 24-month contract offers exceptional value. It provides high-speed, ultra-low latency connection of 7-8 ms, which is ideal for smooth browsing, uninterrupted HD streaming on multiple devices, gaming, and crystal-clear video calls.
The low latency achieved with a full fibre connection directly to your home eliminates the common slowdowns caused by traditional copper cabling which is found in standard fibre connections, ensuring consistent and ultrafast speeds, even in rural areas.
If you’re wondering whether BT full fibre 100 is any good, and how it compares with other broadband packages, that’s all included in this review. We strongly believe this package is perfect for most people. Not only is it comparatively more affordable, but it also provides a high-speed internet experience that meets the demands of both work and entertainment.
There are, in fact, over 58 variations of the BT Full Fibre 100 deal depending on how you customise your package. That ability to customise alone makes this deal attractive, but you’ll find the same ability on other BT Broadband deals such as the 300, 500, and 900. This article is detailed, and as a consequence is very long, so if you’re in a rush to find what you need, use the contents section to navigate to specific sections of this guide. We hope you enjoy reading it!
| Feature 📜 | Details 🔍 |
|---|---|
| Package Price 💰 | £34.99 per month |
| Upfront Cost 🆓 | Free P&P and no up-front costs |
| Est. First Year Cost 📅 | £359.88 (Monthly cost * 12) |
| Download Speed ⬇️ | 150Mbps |
| Upload Speed ⬆️ | 30Mbps |
| Broadband 🌐 | Fibre to the premises (FTTP) |
| Router 📡 | Smart Hub 2 |
| Packages Available 📦 | Broadband only, Broadband & phone, Broadband & TV |
| Contract Length ⏳ | 24 months |
| Slow Bandwidth Activities (Up to 1 Mbps) 🐌 | ∼ 150 Activities (e.g., Emails, Streaming music or podcasts, VoIP calls, Smart home devices, Browsing social media) |
| Medium Bandwidth Activities (1–4 Mbps) 🏃 | ∼ 37-150 Activities (e.g., Personal video calls, Internet gaming on a console, Streaming video in SD, General internet browsing, Business software) |
| Fast Bandwidth Activities (5–15 Mbps) 🚀 | ∼ 10-30 Activities (e.g., HD video teleconferencing, Streaming video in HD, Downloading large files, Multiplayer online gaming) |
| Very Fast Bandwidth Activities (16–25 Mbps) ⚡ | ∼ 6-9 Activities (e.g., Game or application updates, Streaming video in ultra HD (4K or 8K), File sharing, Torrenting) |
The BT Full Fibre 100 package is fully unlimited, with no restrictions on downloads or uploads. The package includes the BT Smart Hub 2 router, which supports all your devices on a 100Mbps connection. Additionally, BT provides an array of security software, parental controls, and free access to BT WiFi hotspots across the UK.
BT Full Fibre 100 offers an average download speed of 150 Mbps, which is more than double the speed of BT’s Fibre 2 package (74Mbps average).
Some key features of the BT Full Fibre 100 package include:
If you’re completely new to fibre broadband, download speed refers to the rate at which digital data is transferred from the internet to your device. This speed plays a crucial role in how fast web pages load, files download, and the quality and buffering of video streaming. Essentially, with the Full Fibre 100 at 150Mb download speed, users can enjoy seamless streaming and quick downloads.
To put this into context, this would allow you to download a 1GB movie file in about one minute, markedly faster than with lower-speed broadband. Additionally, it can support multiple devices streaming HD content simultaneously without buffering issues. This seamless, fast downloading experience is one of the key selling points of this package.
Upload speed, on the other hand, determines how quickly data can be sent from your device to the internet – whether you’re posting a photo on social media, uploading a video on YouTube, or sending a large file via email. At 30Mb, the Full Fibre 100’s upload speed allows for fast and efficient data transfer.
Then finally there’s BT’s Stay Fast Guarantee which is an assurance from the company that you’ll consistently receive the speeds they promise, in this case, 100Mb. If your speed drops below this and cannot be fixed, you could be eligible for a £20 refund.
If you’re currently subscribed to plans like Fibre 100 or Fibre 250, it’s important to note that these plans have been rebranded as Full Fibre 100 and Full Fibre 300, respectively. However, the rebranding doesn’t affect the actual speed of your internet connection; these plans continue to deliver the same high-speed performance as before.
The Full Fibre 100 and Full Fibre 300 names more accurately reflect the nature of the technology and align with industry standards for naming conventions. Full Fibre 100 typically offers speeds of up to 100 Mbps, suitable for high-definition streaming, gaming, and general household internet use. Full Fibre 300, on the other hand, provides speeds of up to 300 Mbps, which can comfortably accommodate multiple devices streaming 4K content, large file transfers, and more intensive online activities.
You would think the obvious answer should be a 100 Mbps download, but it’s a bit more complex than this. Download speeds on BT Full Fibre 100 broadband can reach right up to 150 Mbps and everything in between. This video provides an excellent demonstration of the BT Full Fibre 100 package looked at through the Ookla speed test.
You can run your own test here as a comparison. While each user will have different results based on their location and other extraneous factors this is a super fast package. In the below a test is run three times, reaching a download average of 150.08 Mbps / 149.86 Mbps / 149.51 Mbps and an upload average of 30.96 Mbps / 30.87 Mbps / 30.91 Mbps.
Ping rates over 150 milliseconds generate noticeable lag on games, graphics and streaming, and anything under 50 ms is considered very good – so a ping average of 7 Mbps / 7 Mbps / 6 Mbps in those three tests is exceptional.
Here’s a concise overview of the offerings included with BT’s Full Fibre 100 package.
| Broadband Package | Download Speed | Upload Speed | Monthly Cost |
|---|---|---|---|
| Full Fibre 1 | 50 Mbps | 10 Mbps | FREE for 3 months, £32.99 after |
| Full Fibre 2 | 74 Mbps | 20 Mbps | FREE for 3 months, £35.99 after |
| Full Fibre 100 | 150 Mbps | 30 Mbps | FREE for 3 months, £34.99 after |
| Full Fibre 300 | 300 Mbps | 49 Mbps | FREE for 3 months, £37.99 after |
| Full Fibre 500 | 500 Mbps | 73 Mbps | FREE for 3 months, £43.99 after |
| Full Fibre 900 | 900 Mbps | 110 Mbps | FREE for 3 months, £49.99 after |
| Source: BT - October 2023 Speed and Pricing Full Fibre Broadband. | |||
BT’s Black Friday deals on broadband has kicked off offering 3 months free on their broadband packages. It’s certainly eye-catching, and worth taking advantage of, but given that the total price for the 24-month is actually £15.03 more than it was in September. That shouldn’t sway your choice, but it’s worth noting that all broadband deals (not just BT) need to be considered over the full contract period.
That said, the November pricing makes BT full fibre 100 an attractive offer. Compared to the entry-level package, Full Fibre 1, which is priced at £32.99 per month for 50 Mbps, you get 3 times the speed for just £2 more per month (or £48 more over the 2-year contract). The value proposition shifts as you go higher in the range. For example, Full Fibre 300 offers 300 Mbps at £37.99 per month (£3 more per month or £71 more overall). But move up to 500 Mbps package and it’s a whole £9 extra (£216 more) and £15 per month (£360 extra) for Full Fibre 900.
Key Takeaway: your best strategy, unless you really need the extra boost, is to stick with the mid-tier Full Fibre 100. It’s the sweet spot for speed and pricing for most users.
| Package | Download Speed | Upload Speed | Monthly Cost |
|---|---|---|---|
| BT Full Fibre 100 | 150 Mbps | 30 Mbps | £34.99 per month |
| Virgin Media M150 Fibre Broadband | 132 Mbps | 20 Mbps | £26.50 per month |
| Shell Energy Superfast Fibre | 35 Mbps | 9 Mbps | £23.99 per month |
| TalkTalk Fibre 150 | 145 Mbps | 20 Mbps | £32.00 per month |
| Sky Superfast | 59 Mbps | 16 Mbps | £25.00 per month |
| Plusnet Fibre Extra | 66 Mbps | 18 Mbps | £24.99 per month |
150 Mb/s ⬇
Estimated download speed
30 Mb/s ⬆
Estimated upload speed (uploading files etc.)
100 Mb/s 🫱🏻🫲🏽
Minimum speed guarantee
£0 ✅
Free P&P and no upfront costs
24 month
24 month contract (See more details)
£34.99
per month
BT Full Fibre 100 is one of the most popular broadband packages offered by BT Broadband and for good reasons. It’s not just about raw speed, but the entire package and the value it provides to users. Let’s look at some of the significant benefits:
| Pros and Cons of BT Broadband | |
|---|---|
| Pros | Cons |
| ✔ Broad range of speeds - FTTC and full fibre options | ✖ More expensive than some rivals |
| ✔ Complete WIFI - 95% UK coverage | ✖ Mixed customer reviews on service and pricing |
| ✔ Extensive availability across the UK | ✖ Expensive out-of-contract price hikes |
| ✔ Truly unlimited broadband usage | ✖ Comparatively long contract terms |
| ✔ High-quality router included | ✖ Higher pricing compared to competitors |
| ✔ Good selection of TV bundles | |
| ✔ No need for a phone line | |
| ✔ Five million WiFi hotspots | |
| ✔ Positive reviews on broadband speeds | |
| ✔ Exclusive offers on BT Sport | |
| ✔ Free cloud storage and online security | |
When selecting your BT Full Fibre 100 broadband package, you have the flexibility to tailor it to your needs. Here’s what you can consider:
“Complete Wi-Fi” is a feature designed to extend your Wi-Fi coverage:
Upgrade your entertainment options with BT’s “Add TV” service:
The BT TV entertainment package offers significant value:
For sports enthusiasts, BT provides exclusive sports packages:
If you’re struggling with inconsistent Wi-Fi at home, BT’s Complete Wi-Fi offers an effective solution. Priced at only £12 a month, this service extends reliable and high-speed internet access to every corner of your home. Note that this price is for the BT full fibre 100 package and the price varies by package – we’ve written a separate article on that here.
On subscription, you’ll receive a Wi-Fi Disc to pair with BT’s next-generation Smart Hub. This duo works together to create a robust, seamless network, ensuring optimal browsing, streaming, and video-calling experiences throughout your home.
BT also stands by their product with a £100 money-back guarantee. If you’re not satisfied and encounter any room without strong connectivity, BT will refund £100.
It really depends on where you look. If you look at OfCom data, BT has a slightly higher than average customer satisfaction (85%) for its broadband services. However, If you visit BT’s Trustpilot page, the reviews are pretty scathing. The company as a whole (not BT Broadband or the Full Fibre 100 package particularly) gets 1.5 out of a total of 5 stars from a combined 14,609 reviews.
Should you be put off by these reviews? Quite honestly, we don’t believe you should. Put into context, BT has approximately 9.4 million broadband customers, and the UK’s largest market share at 33.6%. So those reviews in total represent just 0.15% of all BT customers and an even smaller percentage of BT broadband customers.
If you filter all of BT’s Trustpilot reviews down to just reviews on BT Full Fibre 100 (you can do that using the filter keyword “fibre 100” to capture as much as possible), you get 21 reviews, at the time of writing, a fraction of the total. Comments are largely negative ranging from excessive charges, and price hikes, to poor customer service. Like many UK providers price hikes are, in fact, a reality with BT Broadband packages and we encourage you to read this page on the annual price changes of BT broadband contracts and to factor that into your budget. BT adjusts its prices annually based on the Consumer Price Index (CPI) rate of inflation + 3.9%. So if you bought your fibre package towards the end of last year you would likely have seen a price increase of 14.5% (10.5% CPI plus 3.9%).
Additionally, deals and promotions on BT packages are reviewed each week (typically on Thursday we’ve found) so it’s worth keeping track of those changes. We’ve created a page on BT price changes here to make it easier for you to see the highs and lows and to assess the best time to purchase.
While reviewers express genuine concerns (Trustpilot does monitor this), that shouldn’t deter you from purchasing. It’s best to know what to expect and arm yourself with the facts, questions, and information that you need before purchasing to ensure that your expectations are met. Here are some of the things we recommend you do before purchasing:
Before diving into a technical review of BT’s Full Fibre 100 package, it’s essential to understand the conversion from Mbps to Megabytes per second. This distinction is vital as it significantly impacts the streaming capacity at various resolutions.
Mbps stands for Megabits per second, which measures data transfer speed. In contrast, Megabytes (MB) is a unit of digital information storage. To convert from Mbps to MB/s (Megabytes per second), you need to divide by 8 because there are 8 bits in a byte.
Assuming your BT Smart Hub 2 (or equivalent) is correctly set up, BT’s Full Fibre 100 connection can support streaming on 50 to 85 devices simultaneously at 720p (HD Ready), given a 1.76 – 2.00 Mbps requirement per second for 720p HD. If you increase the resolution to Full HD (1080p), which is ideal for watching movies, it requires 2.64 – 3.12 Mbps per second. This means you can stream on 32 to 57 devices concurrently.
For those who prefer watching movies in UHDTV1 (4K) and UHDTV2 (8K), the number of devices that can stream simultaneously drops significantly. You can stream on 2-3 devices in 4K and only 1 device in 8K, requiring 44-49 Mbps for 4K and 80-84 Mbps for 8K. The graph below provides a more detailed explanation.
Understanding device streaming capacities at different resolutions helps us gauge how mainstream titles might perform. Streaming in high-definition (HD), especially in 4K and 8K, consumes a lot of data. For instance, an hour of compressed 4K video uses about 20-22 gigabytes, while an hour of 8K (7680 x 4320 pixels) Ultra High Definition (UHDTV2) footage consumes around 36-38 gigabytes.
The Full Fibre 100 package is well-suited for high streaming demands. With its 100 Mbps download speed, it can efficiently handle 4K movies, which typically take about 26-30 minutes to download. However, for 8K content, the download time rises to roughly 48-50 minutes, almost the actual duration of an hour-long video.
It’s worth noting that BT Full Fibre 100 is best suited for streaming one 8K movie at a time. If other devices are using the connection simultaneously, it could extend the download time and potentially lead to buffering issues. However, most streaming platforms currently offer movies mainly in HD and Full HD, aligning well with the Full Fibre 100’s capabilities, reducing immediate concerns. For context, while Netflix offers around 1500 titles in 4K (depending on the region), it doesn’t yet support 8K streaming.
When watching lengthy films like “Avatar: The Way of Water” (190 mins) or “The Batman” (176 mins), users are unlikely to encounter buffering issues or significant drops in resolution. But as platforms like Netflix, YouTube, and Disney+ expand their 4K offerings—with movies ranging from 96GB for “Elvis” to 120GB for “The Fabelmans”—ensuring a stable connection becomes crucial, especially when streaming on multiple devices simultaneously.
When you sign up to a BT Full Fibre 100 broadband package, you get a Smart Hub 2 router which is free to use for the extent of your contract. You’ll need to return it at the end of your contract. The BT Smart Hub 2 is actually a router and WiFi access point combined into a single device. It has some impressive specifications and features that provides users with a seamless internet connection. BT’s Smart Hub 2 is designed with next generation AC WiFi technology, utilising the widely adopted WiFi 5 (802.11ac) standard to ensure compatibility with the majority of devices.
One of the standout features of the BT Smart Hub 2 is its channel selection capability. This system automatically connects your devices to the fastest WiFi channel and frequency available, ensuring optimal performance for whatever internet activity you’re engaged in. In addition, the router is equipped with dual-band technology, utilising both 2.4GHz and 5GHz frequency bands to deliver a stable WiFi signal, irrespective of your device’s proximity to the router.
To maintain a strong network connection, the BT Smart Hub 2 continually monitors your connections, filtering out interference and automatically rebooting to resolve any issues should they arise. This proactive approach helps to ensure a consistently reliable internet experience for users.
Another notable aspect of the BT Smart Hub 2 router is its inclusion of four gigabit LAN ports. These high-speed ports enable you to connect up to four devices via cable, providing the maximum possible speed and a dependable connection for data-intensive tasks.
Finally, the BT Smart Hub 2 boasts an impressive array of seven antennae, designed to ensure excellent WiFi signal coverage throughout your home. This advanced antenna configuration enhances signal strength and minimises dead zones, allowing you to enjoy a high-quality and consistent internet experience, no matter where you are in your home.
| Feature |  BT Smart Hub |  BT Smart Hub 2 |
|---|---|---|
| Complete Wi-Fi | No | Yes |
| Number of antennas | 7 | 7 |
| Wi-fi bands (2.4GHz and 5GHz) | Dual | Next generation AC wi-fi |
| 2.5GHz wi-fi band | 3x3 11b/g/n/ac | 3x3 11b/g/n/ac |
| 5GHz wi-fi band | 4x4 11a/n/ac | 4x4 11a/n/ac |
| Built-in 4G filters | Yes | Yes |
| Connections | 4 x giga ethernet | 4 x giga ethernet |
| USB ports | Yes | Yes |
| On/off light control | Yes | Yes |
| Removable password card | Yes | Yes |
| Smart Wireless | Yes | Yes |
| BT Smart Scan | Yes | Yes |
| Dect | No | Yes |
