How do I tell if I already have a Thread border router?
Most homes with a recent smart speaker, display or mesh router already have one. Apple lists HomePod mini, HomePod (2nd generation), Apple TV 4K (2nd generation) and Apple TV 4K (3rd generation) Wi-Fi + Ethernet. Google lists Nest Hub (2nd gen), Nest Hub Max, Nest Wifi Pro and Google TV Streamer. Amazon lists Echo (4th Gen), Echo Hub, Echo Studio, several Echo Show models and most eero routers.
Last checked: against Apple Support 102078 (published 2026-01-13), Google Nest Help 12391458, Amazon Understand Smart Home Thread Support (updated 2026-05-01)
Check your existing hardware against these three lists
Each platform publishes its own list. A device on any one of them is a Thread border router; it does not have to match the ecosystem you intend to use, though in practice the ecosystems do not freely share Thread credentials with each other.
Apple
Apple's support document, published 13 January 2026, names these as Thread-enabled home hubs:
- HomePod mini
- HomePod (2nd generation)
- Apple TV 4K (2nd generation)
- Apple TV 4K (3rd generation) Wi-Fi + Ethernet
- iPhone 15 Pro, iPhone 15 Pro Max or later running iOS 18
The Wi-Fi + Ethernet qualifier on the 3rd-generation Apple TV 4K is Apple's own wording. The Wi-Fi-only model of the same generation is not named.
Google's Nest help page separates devices that support Matter over Wi-Fi only from those supporting Matter over both Wi-Fi and Thread, and says the second group "have a Thread border router built-in to avoid the need for an additional hub device." That group is:
- Google Home Speaker (2026)
- Nest Hub (2nd gen)
- Nest Hub Max
- Nest Wifi Pro (Wi-Fi 6E)
- Google TV Streamer (4K)
Amazon
Amazon's Thread support documentation, last updated 1 May 2026, lists Echo (4th Gen) at Thread 1.1, and at Thread 1.3: Echo Dot Max, Echo Hub, Echo Plus (2nd Gen), Echo Show 21, Echo Show 15 (2nd Gen), Echo Show 11, Echo Show 10 (3rd Gen), Echo Show 8 (3rd Gen) and Echo Studio — plus the eero range, including eero 6 and 6+, eero 7, eero Beacon, eero Max 7, eero Outdoor 7, eero PoE 6, eero PoE gateway, eero Pro, eero Pro 6 and 6E, and eero Pro 7. The per-model Echo detail is on its own page.
Owning one is not the same as being able to use it
This is where the documentation and the lived experience part company, and it is worth stating carefully because it is the most common false negative.
A Thread border router belonging to one ecosystem does not automatically carry a Thread device into another. Each ecosystem provisions its Thread network with its own credentials, and a controller that cannot obtain those credentials will report that no border router is present even though one is physically in the room. Home Assistant's own documentation reflects this: it names Nest Hub (2nd Gen), Nest Wi-Fi Pro or Home Assistant running the OpenThread Border Router add-on as the qualifying options for its Matter integration, rather than "any border router."
So the honest test is two-part: does the hardware appear on a list above, and does the ecosystem you are commissioning from have access to that border router's Thread credentials.
If you have none of the above
Adding a border router means buying hardware, but not necessarily a dedicated one — the cheapest qualifying devices on these lists are smart speakers and displays that many people would buy anyway. Home Assistant users have a software route instead: Connect ZBT-1, ZBT-2 or SkyConnect hardware running the OpenThread Border Router add-on turns an existing Home Assistant install into a border router.
Related questions
Does a Thread border router replace a hub?
Not necessarily. A border router joins the Thread network to the IP network; a hub or controller is what commissions and controls the device. Some products are both — Nest Hub (2nd gen) and Echo Hub, for example — but Google's documentation lists 'hub for Google Home' as the wider category, with only some hubs additionally acting as Thread border routers.
Do Matter-over-Wi-Fi devices need one?
No. A Thread border router is only needed for Matter-over-Thread devices. A Matter device that connects over Wi-Fi or Ethernet reaches the network directly.
Can an iPhone act as one?
Apple lists iPhone 15 Pro, iPhone 15 Pro Max or later running iOS 18 among its Thread-enabled devices, which is why Apple's documentation says such a phone can control Thread accessories without a hub.