ASUS ZenWiFi BD4 Dual-band WiFi 7 Mesh, 3600 Mbps, 7750 sq.ft (3pk), Dual 2.5G Ports, Security and Parental Controls Included, Smart Home Master SSIDs

After years of testing high-end routers and networking gear for both home and professional use, I can confidently say that the BQ16 Wi-Fi 7 router is a breakthrough product. It not only outperformed my trusted ASUS GT-AX6000 but also did so in real-world scenarios that matter most: multi-wall coverage, wireless backhaul performance, and consistent VPN handling. Bought in January 2025 and now running the latest firmware as of March 2025, this device is nothing short of exceptional.The setup was straightforward and impressively fast. Using the BQ16 app, available on both Android and iOS, I had the entire mesh system up and running in under 10 minutes. The app walked me through every step intuitively, from placing nodes to optimising channels. Firmware updates were applied seamlessly during the setup, and the app has since been reliable for monitoring traffic, toggling features like QoS, and managing connected devices.In my household, I tested the router with a combination of devices: a MacBook Pro M1 (2021), a Dell XPS 15 (2023), iPad Air 5th Gen, iPhone 15 Pro, Samsung Galaxy S22 Ultra, Pixel 7, and several IoT smart devices like a Philips Hue Bridge and Google Nest Hubs. The BQ16 handled all connections effortlessly.Coverage was nothing short of jaw-dropping. My house is a detached, two-floor brick home with thick internal walls, and traditionally, getting reliable signal in the attic and back garden has been a challenge. I used a two-unit BQ16 setup with wireless backhaul, and the secondary unit was placed in a room three walls away from the main router. Despite the challenging layout, I was able to connect my main workstation via Ethernet to the backhaul unit, which in turn used Wi-Fi 7 to communicate with the primary router. The result? Full gigabit speeds, zero lag, and not a single drop during extended work sessions, video editing, or remote desktop usage.What sets this system apart is how well it handles WireGuard VPNs. On my GT-AX6000, enabling WireGuard would cut my 940 Mbps fibre connection nearly in half, hovering around 400-450 Mbps regardless of which server I used. With the BQ16, I enabled WireGuard client mode through the web interface, linked it to my favourite secure VPN provider, and tested it across multiple endpoints. The difference was astounding: I consistently achieved 880-930 Mbps while connected to VPN servers across Europe. The performance hit was minimal and within expected ranges, making this router ideal for security-focused users or remote workers who rely on encrypted connections.During tests, I ran speed benchmarks on every floor, including areas previously plagued by dead zones. My iPhone 15 Pro showed 920 Mbps download in the living room (main router location), 850 Mbps in the kitchen, and 700 Mbps in the attic. Even the garden office, situated 12 metres away through two brick walls, received a solid 450 Mbps. Streaming 4K content, cloud backups, and Zoom calls all worked concurrently without bottlenecks.Apple and Android devices seamlessly roamed between nodes with no noticeable handoff delays. My MacBook Pro performed flawlessly with sustained download speeds and no interruptions, even while moving between floors. Similarly, the Dell XPS laptop never struggled with latency, even when gaming on a 240Hz monitor connected to a dock via the backhaul LAN.The router's default settings were excellent out of the box, but I delved deeper to explore more advanced configuration options. Manual channel selection, beamforming tweaks, and VPN kill-switch integration were all present. More importantly, despite pushing every setting to its limit, I encountered zero crashes or instability. The BQ16 remained rock solid under stress testing.I researched potential issues mentioned by other users, such as rare backhaul connection drops or app pairing bugs. I discovered these can usually be resolved by disabling DFS scanning during initial setup, ensuring the same firmware version across both nodes, and restarting both units post-synchronisation. Once that was done, I never had to touch it again. I can safely say this is one of the few mesh systems where 'set it and forget it' truly applies.File transfers between local devices, such as moving raw photo folders from my MacBook to a NAS, were also extremely fast. The internal QoS prioritised Zoom and Teams calls perfectly, even while large downloads were running in the background.The 6GHz band, typically the bottleneck in Wi-Fi 6E routers due to lack of client support or interference, is well utilised here. My Pixel 7 and Galaxy S22 Ultra both leveraged Wi-Fi 7, and the connection was crisp, responsive, and consistently fast. I saw no disconnections or signal drops, even during extended gaming or streaming sessions.When it comes to the 2.5GHz band, I was particularly surprised by how well the BQ16 performed compared to the GT-AX6000. While 2.5GHz is usually slower and more congested due to device load and interference, the BQ16 managed to maintain more stable throughput and better range. In areas like the garage and utility room—where the GT-AX6000 would drop to sub-50 Mbps or disconnect entirely—the BQ16 kept a consistent 120-150 Mbps with lower ping jitter. This makes it perfect for low-priority smart devices that need reliable background access.On the 5GHz band, which is typically where premium routers shine, the BQ16 delivered far more consistent speeds across distance and barriers. With the GT-AX6000, I would often see a noticeable speed decline once I crossed two internal walls. The BQ16, however, retained high throughput even three rooms away, achieving over 900 Mbps on my iPhone 15 Pro in the furthest bedroom. Its beamforming and signal shaping seem better optimised, with devices showing less fluctuation in speed tests over time. This consistency translated into smoother 4K streaming, cloud file access, and stable low-latency gaming.I also appreciate how slim the units are and how silent they remain. There's no noisy fan, and the heat management appears to be passive yet effective. Even after extended operation in an enclosed media unit, the chassis was barely warm.To wrap it up, the BQ16 is an elite performer. It is rare to find a router that not only matches premium models on specs but actually beats them in real-world usability, especially with VPN usage and multi-wall mesh configurations. If you're coming from a high-end Wi-Fi 6 or 6E model like the GT-AX6000 and are considering the leap to Wi-Fi 7, this router will make that transition feel long overdue. Whether you're a remote worker, a gamer, or a demanding home user with dozens of devices, the BQ16 delivers on every front with confidence and consistency.

It's an excellent router. Reason for one star is that Amazon providing only 2 years warranty but the router comes with 3 years manufacturer's warranty. I have spoken to Amazon customer service and they have confirmed that they will only cover the item for 2 years only which is quite disgusting. I was lucky to find this information before the order was delivered so I cancelled my order and purchased it from Scan.co.uk and they have confirmed they do honour the 3 years warranty. There have been many cases where people had issue after 2 years and they were unable to get issue resolved from Amazon or Asus. Asus will honour the 3 years warranty only if they repair/replacement process initiated via the authorised seller. You can Google it for more information.So, if your router develops a fault after 2 years then Amazon will tell you that they cannot process the return because it has passed 2 years since purchase. They will advise you to contact Asus, and Asus support will tell you to go back to Amazon as they want authorised seller to start the process and you will be in infinite loop.I hope this information will help someone who is looking to purchase this router. Over all it's an excellent router and it is quite easy configure and I am very happy with the product. I just didn't want to miss out years' worth of warranty on the product

This is a high-quality product, beautifully designed, wonderfully packaged and highly performant.It unboxes like an Apple product, it's so well-balanced and specification-wise it ticks all the boxes:1) Four WiFi radios - one for 2.4GHz, two for 5GHz and one for the newly opened 6GHz band.There is an Asus BQ model which has dual 6GHz radios at the expense of one of the 5GHz radios, but I chose the configuration above for a specific reason: WiFi 7 client devices (phones/tablets/laptops) are still relatively scarce in the market and will remain so for the next few years. Only WiFi 7 client devices and WiFi 6E devices can access the 6GHz band. The case for WiFi 6E is compelling in the US (twice the WiFi 7 spectrum allocation) but less so in the UK or EU. Moreover, the higher the frequency, the shorter the range of the WiFi radio wave. So 6GHz clients will likely fall back to the 5GHz or 2.4GHz bands unless they're really close to the access point, BUT those clients will still use the WiFi 7 protocol with all its advantages over WiFi 5/6/6E.2) Each of the four radios can support 4 concurrent transmissions and receptions (4x4 + 4x4 + 4x4 + 4x4).3) It supports the newly available WiFi 320MHz channel bandwidth on 6GHz, which is crucial because dual-radio WiFi 7 routers can't! This is one aspect that enables WiFi 7's highest speeds.4) MLO (multi-link operation) - bonding 2.4GHz + 5GHz + 6GHz channels together for enormous speeds, a feature new to WiFi 7.5) MRU (multi-resource unit support) - this is where the improvements in latency come from in WiFi 7.6) 4K QAM operation - when really close to the router (<3m), this new addition contributes to the BE19000 rating of this router. This feature is only available on WiFi 7.7) Dual 10Gbps ethernet ports!8) USB 3.0, 2 additional 1Gbps LAN ports, a mobile app, and a well thought-out web user interface. It's spectacular!9) You can turn the LED off in settings.10) It supports Asus proprietary WiFi mesh protocol (AiMesh), meaning you can have one of these devices wired into your existing broadband router, and a second or third elsewhere in your home. It doesn't need an ethernet cable to connect to your router because the two (or more) BQ16s will connect to each other over WiFi. That's how you get whole-home WiFi without loads of ethernet cables everywhere.Please note: When you receive one of these, the first thing you MUST do is update its firmware. The WiFi 7 standard is new, and all vendors are rushing products to market. These products will have been on the manufacturing production line 2-3 months ago, then sea-shipped (most likely) from China (adding another 4-6 weeks). The software installed in the factory WILL have been superseded by a much more stable version, simply because the OEM has had more test time and issues reported from early adopters.Important setup steps:Do the firmware upgrade using an ethernet cable BEFORE any real customisation of the device's config.Do not create the AiMesh network until you've completed the firmware update.Update each BQ16 individually, one at a time, then perform a factory reset, then set up the AiMesh if needed (my home network is all 10Gbps, so I connect each of my two BQ16s into 10Gbps ethernet ports).I've been running BQ16s since August 2024, and with my M3 MacBook Pro (WiFi 6E), I can achieve ~1100Mbps on an Ookla Speedtest over WiFi, that’s the full speed of my broadband. These units are spectacular, and when Asus brings out their WiFi 8 variants, I'll probably upgrade to those at some point, and no Asus didn't pay me for this review or send me free units to review (though I wish they had).