Aqara Zigbee Hubs and Their Differences (U: 28/09/24)

When I first started this website back in April 2018, the original Aqara hub (now referred to as the M1) didn’t exist, and although Xiaomi hubs that look similar to this Aqara hub had been around for a while, they weren’t HomeKit compatible, at least not officially. Hubs aren’t new of course, as the 1st and 2nd gen Philips Hue Bridges – also Zigbee hubs – have already been around for a few years. Aqara’s first own-brand hub came out in China in August 2018 and has been slowly but surely propagated to other regions, with the UK finally in on the action, gaining a few sensors as well as the Aqara Hub M2 and the Camera Hub G2H, at the same time as other newer Aqara hubs start their steady emergence into the public.

While many people who regularly visit this site along with various social media platforms will be cognizant of Aqara, its hub, child devices, and ecosystem, the reason for this article is to help the growing number of people that are getting into smart homes in general, and Apple Home in particular, who may have been hearing the word ‘Aqara’ (including all of the various ways it’s pronounced) bandied about. They then find themselves waist-high – metaphorically speaking – in all the different options that this system offers, as well as hearing mention of ‘other’ hubs that they can’t as of yet find. This inevitably leads to a lot of confusion, and in many cases, hard-earned money, unwittingly misspent on the wrong devices. Whilst it would take too long to cover all of the differences between each hub, I hope to put newcomers straight on what each one is capable of, what they can and can’t do, as well as save you time on looking for a device that may not actually be designed for the region of the world you live in, if indeed you can find the device you want so badly.

For those that are more familiar with Aqara and the devices that can be used, there’s always the question of what devices are exposed to Apple Home. This was easy when there was only one Aqara hub, but when it comes to certification for exposing devices to Apple Home, even if a sensor or smart plug has been certified to work with Apple Home via one hub, as soon as a new hub comes out, when it comes to these certified child devices going through the new hub, they have to go through the same certification process again, even when the new hub is itself already Apple Home compatible. Inevitably, this can lead to yet more confusion, where an Aqara US smart wall switch is compatible with the Aqara hub but isn’t yet exposed to HomeKit via the hub portion of the Aqara G2H camera, for example. There’s no easy way around this, and certification, even with devices already previously certified, is seemingly a lengthy process.

With this in mind, it’s impossible for me to be able to let you the reader know exactly what is and what isn’t currently exposed to HomeKit (the exception being the original Aqara Hub), as I’d first have to own each device in order to check this (not going to happen…), and it’s entirely possible that no sooner do I leave something off a list, than a week later, it gains Apple Home compatibility. I hope you can appreciate this limitation I have to put on myself, but with help from other Aqara users, maybe we can amongst us confirm all of the devices across all of the hubs, in order to know for certain.

Some will read this article and be familiar with the parts I touch upon already, so in many ways, this is more for the beginner, confused about the variety of options out there. You can also check out the video below, which merely scratches the surface with the differences between some of the more common hubs, if that’s an easier way to start off.

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I will include a hub that isn’t part of the Aqara ecosystem, only so as to explain its relationship with the Aqara products, but first off the bat, all except one of the hubs I’ll mention are Aqara branded, with the one non-branded hub still both made by Aqara’s parent company (Lumi United) and also being capable of working with many of the same Aqara sensors and switches that the Aqara hubs work with. One thing to also note is that it is recommended that you buy a hub suitable for your region if at all possible, for the best support, compatibility and usage. Take a deep breath, and jump in…

	Protocol	Child devices	Zigbee 3.0?	Power	regions	Alarm modes	Speaker?	LED light?	Extras
Aqara Hub	WiFi 2.4GHz	32	No	Built-in plug	CN / EU / US / HK	Away / Off	Yes	Yes	-
Aqara M1S	WiFi 2.4GHz	128	Yes	Built-in plug	CN / EU / US	Away / Home / Sleep / Off	Yes	Yes	-
Aqara M2	WiFi 2.4GHz / Ethernet	128	Yes	USB	CN / EU / US	Away / Home / Sleep / Off	Yes	No	IR transmitter
Aqara P3	WiFi 2.4GHz	unknown	Yes	Built-in plug	CN	Away / Home / Sleep / Off	Yes	No	IR Transmitter
Aqara G2H	WiFi 2.4GHz	64	Yes	USB	CN / EU / US	n/a	Yes	No	Camera
Aqara G2H Pro	WiFi 2.4GHz	128	Yes	USB	CN / EU / US	Away / Home / Sleep / Off	Yes	No	Camera
Aqara E1	WiFi 2.4GHz	128	Yes	USB	CN / EU / US	Away / Home / Sleep / Off	No	No	Built-in WiFi repeater
Aqara G3	WiFi 2.4/5GHz	128	Yes	USB-C	CN / EU / US	Away / Home / Sleep / Off	Yes	Yes	Pan & Tilt, Facial, Gesture recognition
Aqara Hub M3	WiFi 2.4/5GHz / Ethernet / PoE	127	Yes	USB-C	CN / EU / US / RoW	Away / Home / Sleep / Off	Yes		Matter Controller/TBR/AC Controller
Mi Smart Gateway	WiFi 2.4GHz	128	Yes	USB	All regions	n/a	No	No	Bluetooth/Mesh gateway

AQARA HUB (M1)

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Uses WiFi 2.4 GHz to connect to your network/HomeKit

• Can support up to 32 child devices
• Uses Zigbee to connect to child devices (not Zigbee 3.0)
• Uses a built-in plug
• Available in the following variants, with the appropriate type of plug;
  • China (Type I)
  • Europe (Type C)
  • North America (Type B)
  • Hong Kong/U.K. (Type G plug, but not officially on sale in the U.K.)
• Works with Apple Home, Mi Home, and Aqara Home apps
• Two-alarm modes – Off and Away (currently not synced with HomeKit)
• Includes audio speaker (for alarm) and LED ring light

This is the hub that started the ball rolling for Aqara, even though their child devices had been available to buy before this hub existed, which were designed to work with the non-HomeKit Xiaomi – or Mijia/Mi – Hub.

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first off, if you find a hub that looks similar to this, but doesn’t have the Aqara logo in the centre, then it’s not the Aqara hub, so don’t waste your money on something that’s not going to be Apple Home compatible. There are two hubs that look vaguely similar to the hub pictured above but are going to have the MI logotype or the Mi ‘Shield’ logo, which comprises stylised versions of the letters M and J.

That aside, what’s the deal with the Aqara hub? Well, it’s a hub that uses WiFi to connect to your network, and by extension, connect to your HomeKit home. The Aqara hub comes with a HomeKit QR code, so it can be added to HomeKit directly, although it’s advisable to add it to the Aqara Home app initially. When in HomeKit, the device will be exposed to HomeKit as two ‘services’; a light, which is the LED ring around the centre of the hub, and a security system, which in terms of HomeKit, simply allows the built-in alarm to be armed or disarmed.

To slightly complicate matters, the Aqara hub can be added to either the Aqara Home or Mi Home apps – but not both. Generally, I’d recommend you use the Aqara app, although if you’ve been using Mi Home for a variety of Xiaomi smart home products like fans, air purifiers and Bluetooth sensors, then you may want to keep using Mi Home. either way, it’ll be exposed to HomeKit. When you’ve added the device to either app, you can begin to add what are often referred to as ‘child devices’. These are Zigbee devices that need a hub, both to operate and to expose them to HomeKit (in almost all cases with Aqara products). You typically add these devices in the Mi Home or Aqara apps, whereupon you’ll be asked to choose your hub in order to add them. Child devices include a variety of sensors, buttons and switches.

The Aqara hub is capable of supporting up to 32 child devices and uses an older version of the Zigbee protocol, with Zigbee 3.0 being the latest official build. The hub only supports Zigbee devices, so you can’t add Bluetooth or WiFi devices to it. Many times people have asked if they can add their Xiaomi Bluetooth temperature sensor or a Yeelight bulb to the hub, and it’s a simple ‘No’. They can work together in automations, but the hub is simply not capable of supporting either of these protocols in the manner of a hub.

Whilst the Aqara app only lists its own brand child devices when adding them, many of the equivalent Mi/Mijia Branded sensors, buttons and switches also work with the Aqara hub, which can be seen if you’re using the Mi Home app. If you want to know what Aqara or Mi branded devices the hub currently supports, you can check out our Aqara 101 article HERE although it probably needs an update.

AQARA HUB M1S (Gen 1 & 2)

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Uses WiFi 2.4 GHz to connect to your network/HomeKit

• Can support up to 128* child devices
• Uses Zigbee 3.0 to connect to child devices
• Uses a built-in plug
• Available in the following variants, with the appropriate type of plug;
  • China (Type I)
  • Europe (Type C)
  • North America (Type B)
• Works with Apple Home, Mi Home, and Aqara Home apps
• Four alarm modes – Off, Away, Home, Night/Sleep (syncs with HomeKit)
• Includes audio speaker (for alarm) and LED ring light

The Aqara Hub M1S is an upgrade to the current Aqara Hub, and looks identical, save for the newer Aqara logo on the front. Aside from the visual similarities, in many other ways, the M1S is the same as the original but uses Zigbee 3.0, so it can use both the current child devices that use the previous iteration of Zigbee and newer child devices that use Zigbee 3.0 (generally dubbed T1 devices). The LED ring has been slightly upgraded, and the sounds on the hub are also slightly different, including the onboard voice prompts. As with the previous warnings about making sure you buy the Aqara hub, and not a Mi or Mijia hub by mistake, if you intend to buy the M1S, make sure it is the M1S, as it does look nearly identical to the older model, so double-check with the store you buy it from. In HomeKit, the M1S is exposed as a light, an alarm system, and a hub (within the settings of the Home app).

* The gateway can directly connect 32 Zigbee terminal devices. If you need to add more Zigbee sub-devices, you can add Zigbee relay devices to the gateway first, and then add Zigbee terminal devices. Relay devices have expanded functions; After expansion, the gateway can support up to 128 Zigbee sub-devices. Among the Zigbee products branded as Aqara or Mijia, the neutral wire products are ‘relay’ devices, and the battery-powered or non-neutral products are ‘terminal’ devices. Each relay device can be expanded to 16 terminal devices.

AQARA HUB M2

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Uses WiFi 2.4 GHz or Wired Ethernet to connect to your network/HomeKit

• Can support up to 128* child devices
• Uses Zigbee 3.0 to connect to child devices
• Includes an infrared transmitter to control IR-based devices (not exposed to HomeKit)
• Uses a Micro-USB port in combination with any USB type power supply
• Available in the following variants, with the appropriate type of plug;
  • China (Type A)
  • Europe (Type C) (no USB adaptor provided)
  • North America (no USB adaptor provided)
• Works with Apple Home and Aqara Home apps
• Four alarm modes – Off, Away, Home, Night/Sleep (syncs with HomeKit)
• Includes audio speaker (for alarm)

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* The gateway can directly connect 32 Zigbee terminal devices. If you need to add more Zigbee sub-devices, you can add Zigbee relay devices to the gateway first, and then add Zigbee terminal devices. Relay devices have expanded functions; After expansion, the gateway can support up to 128 Zigbee sub-devices. Among the Zigbee products branded as Aqara or Mijia, the neutral wire products are ‘relay’ devices, and the battery-powered or non-neutral products are ‘terminal’ devices. Each relay device can be expanded to 16 terminal devices.

The Aqara M2 was announced in July of 2019 and has taken over a year to finally surface in China, but is now widely available in the UK, EU and US. The M2 is different from the two previously mentioned hubs – design-wise for the most part – although it’s still a Zigbee (3.0) hub. Aside from the design, instead of using a built-in plug for direct connection to a wall socket, the M2 uses USB, with a micro-USB port on the back, where you can use a Micro USB to USB cable, and connect it to a USB power source. This avoids the issue of regional plugs and the need for an adaptor. The M2 also has an ethernet port, so if you prefer a wired connection, and have a free port on your router, then this should provide an even more stable connection. It also supports 2.4GHz WiFi if you don’t have the wired option. In HomeKit, the M2 is exposed as a hub and alarm system.

Also included is an Infrared transmitter, which allows the M2 to act as a replacement for various IR remotes you may have dotted around the house, like ones for TVs, AC units, fans, games consoles etc. The IR transmitter isn’t exposed to HomeKit, as Apple’s smart home platform doesn’t officially support IR units with the exception of devices like the Tado Smart AC Controller V3+ (read our review HERE). However, you can control devices that are using the M2’s IR functionality, with the use of Siri Shortcuts in the Aqara Home app, so it’s the best you’ll get for now. As Aqara buttons, sensors and switches are compatible with both HomeKit and Aqara Home, you can, of course, programme any of these to trigger an IR function previously programmed, so for example, if you had an Aqara/Opple wireless switch, you could programme one of the buttons to trigger a HomeKit bulb, with another triggering a previously created IR function in the Aqara app.

The Aqara M2 also has Bluetooth 5.0, although there’s almost nothing mentioned about this in the literature, so rather than being a hub for Bluetooth devices, it’s more likely it’s only used for initial pairing of certain devices.

AQARA P3 AC COMPANION

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Uses WiFi 2.4 GHz to connect to your network/HomeKit

• Can support up to 128* child devices
• Uses Zigbee 3.0 to connect to child devices
• Uses a larger, built-in 16A plug
• Includes an infrared transmitter to control IR-based devices (not exposed to HomeKit, except for AC units)
• Currently only available in China, with Type I, 16A plug
• Works with Apple Home, Mi Home, and Aqara Home apps
• Four alarm modes – Off, Away, Home, Night/Sleep (syncs with HomeKit)
• Includes audio speaker (for alarm)

The Aqara P3 is first and foremost a sort of beefed-up smart plug, that allows you to also control the power to whatever’s plugged into it, although it’s specifically designed for wall-mounted AC units that require more power, using Chinese 16A plugs. These plugs are larger than the ones you typically find on lower-powered devices that come with a Chinese Type I plug. It essentially controls all of the main functions of your AC using a built-in infrared transmitter, to replace your standard AC remote. While HomeKit doesn’t support IR functionality, in the case of the AC, the P3 exposes your unit as a thermostat, so controls like heat, cooling and turning the AC on and off are available directly in HomeKit. Like the M2, the IR transmitter in the P3 can also be programmed to control other devices that use IR remotes, although they’re not exposed to HomeKit. The P3 shows up in HomeKit as a thermostat and a security system, as well as a hub, but only when you click on the settings for a child device using the P3 as a hub.

Just like all the other hubs I’ve mentioned, it uses 2.4GHz WiFi and Zigbee 3.0 for child devices. There are two previous iterations of this device, but only the P3 is officially HomeKit compatible, so be careful if you’re considering buying this device, which, due to the larger and less common Chinese plug, is probably not recommended for use outside of Mainland China.

AQARA CAMERA HUB G2H

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Uses WiFi 2.4 GHz to connect to your network/HomeKit

• Can support up to 64* child devices
• Uses Zigbee 3.0 to connect to child devices
• Regional models are supported in the following areas – China, North America, Europe, the UK
• Works with Apple Home and Aqara Home apps
• Includes audio speaker (for alarm, two-way audio)
• Alarm functionality restricted to Aqara Home, not exposed to HomeKit
• Available in White outside of China, and in Red, Blue, Yellow, or White for the Chinese model

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* The gateway can directly connect 32 Zigbee terminal devices. If you need to add more Zigbee sub-devices, you can add Zigbee relay devices to the gateway first, and then add Zigbee terminal devices. Relay devices have expanded functions; After expansion, the gateway can support up to 64 Zigbee sub-devices.

The Aqara G2H is a combined HomeKit compatible camera and hub. In fact, the camera is also compatible with HomeKit Secure Video (HSV). The hub is also exposed to HomeKit of course, which in turn allows compatible child devices to be exposed to HomeKit. In HomeKit, the G2H exposes two services – camera and motion sensor. It also appears as a hub, but only if you look into the settings for one of the child devices that connect to it. Furthermore, as a camera can’t be designated as a hub in HomeKit, the G2H’s hub service lists the Motion sensor as the hub in this instance.

While the camera can use HomeKit Secure video, it also has the option to record to an SD card that can be added to the camera, as well as cloud-based recordings via Aqara’s servers. These recording options can only be accessed via the Aqara app, and if you want to make use of them, you need to be signed into the Aqara app, with the camera ‘binded’ to the appropriate server. Under normal circumstances, you should also be signed into the Aqara app to add child devices to the G2H’s hub, although you can manually add devices outside of the Aqara app, with the use of the button on the top of the camera (three presses puts the G2H hub into pairing mode).

You can use a Chinese G2H even if you’re not located in China, but you do need to be signed into the Chinese server in the Aqara app in order to bind the camera fully to make use of the aforementioned additional recording options. This also means that if, for example, you’re in the US, with a Chinese G2H, signed into the China server, you can’t easily add a US Aqara wall switch, so it’s best to get the G2H for your region, for hassle-free service. Like the Aqara M2, the G2H uses a micro USB port for power, so you can use any suitable micro USB to USB cable along with a USB power source to power it.

AQARA CAMERA HUB G2H PRO

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Uses WiFi 2.4 GHz to connect to your network/HomeKit

• Can support up to 128* child devices
• Uses Zigbee 3.0 to connect to child devices
• Regional models are supported in the following areas – China, North America, Europe, the UK
• Works with Apple Home and Aqara Home apps
• Includes audio speaker (for alarm, two-way audio)
• Four alarm modes – Off, Away, Home, Night/Sleep (syncs with HomeKit)
• Available in White only

You’d be forgiven for thinking we’d posted the same G2H camera twice in the article, as the G2H Pro is visually identical to the G2H, save for the small LED, that can display different colours that match the mode the hub or camera is in, just like the M2, M1S etc. The G2H only has a blue LED. Whilst the G2H is also a Zigbee 3.0 hub, the Pro model ups the stakes by fully exposing the alarm system to HomeKit.

* The gateway can directly connect 32 Zigbee terminal devices. If you need to add more Zigbee sub-devices, you can add Zigbee relay devices to the gateway first, and then add Zigbee terminal devices. Relay devices have expanded functions; After expansion, the gateway can support up to 128 Zigbee sub-devices.

The Aqara G2H Pro, like the previous model, is a combined HomeKit compatible camera and hub. The camera is compatible with HomeKit Secure Video (HSV). The hub is also exposed to HomeKit of course, which in turn allows compatible child devices to be exposed to HomeKit. In HomeKit, the G2H exposes three services – camera, alarm system and motion sensor. It also appears as a hub, but only if you look into the settings for one of the child devices that connect to it. Furthermore, as a camera can’t be designated as a hub in HomeKit, the G2H’s hub service lists the Motion sensor as the hub in this instance.

The camera part of the G2H Pro also features a few extras, including the ability to block out certain areas in the camera’s field of view, so instead of footage, there will be a black section, or sections, depending on what parts you have blanked out.

AQARA E1 USB STICK HUB

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Uses WiFi 2.4 GHz to connect to your network/HomeKit

• Can support up to 128 child devices
• Uses Zigbee 3.0 to connect to child devices
• Uses a USB-A plug to insert into any suitably powered USB socket.
• Regional models supported in the following areas – China, North America, Europe, UK
• Works with Apple Home, Aqara Home and Mi Home apps
• Contains a WiFi repeater (support for only two WiFi devices)
• Four alarm modes – Off, Away, Home, Night/Sleep (syncs with HomeKit)
• No audio speaker

The Aqara E1 USB Stick Hub is part of Aqara’s Eco range and is therefore pretty cheap. As with all other newer Aqara hubs, the E1 uses Zigbee 3.0, and despite the lower price and smaller physical footprint, it’s still capable of supporting the new standard of 128 devices, with the help of zigbee repeaters. It also contains a WiFi ‘hotspot’ or repeater, although it can only support 2 separate WiFi devices, so it’s fairly limited. It exposes all four alarm modes within HomeKit, and it will sync with other Aqara hubs with the four alarm modes exposed to HomeKit.

AQARA G3 CAMERA HUB

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Uses WiFi 2.4 and 5GHz to connect to your network/HomeKit

• Can support up to 128 child devices
• Uses Zigbee 3.0 to connect to child devices
• Regional models supported in the following areas – China, North America, Europe
• Works with Apple Home and Aqara Home apps
• Includes audio speaker (for alarm, two-way audio)
• Four alarm modes – Off, Away, Home, Night/Sleep (syncs with HomeKit)
• Feature motion tracking for humans and pets
• Utilises facial recognition, gesture recognition, motion detection, and abnormal sound detection
• Has built-in IR blaster

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The Aqara G3 is a combined HomeKit compatible camera Zigbee 3.0 hub, and HomeKit alarm system. The camera is also compatible with HomeKit Secure Video (HSV). The hub is also exposed to HomeKit, which in turn allows compatible child devices to be exposed to HomeKit. In HomeKit, the G3 exposes three services – camera, motion sensor and security system. It also appears as a hub, but only if you look into the settings for one of the child devices that connect to it. Furthermore, as a camera isn’t designated as a hub in HomeKit, the G3’s hub service is listed as the Security system in this instance.

While the camera can use HomeKit Secure video, it also has the option to record to an SD card that can be added to the camera, as well as cloud-based recordings via Aqara’s servers. These recording options can only be accessed via the Aqara app, and if you want to make use of them, you need to be signed into the Aqara app, with the camera ‘binded’ to the appropriate server. Under normal circumstances, you should also be signed into the Aqara app to add child devices to the G3’s hub, although you can manually add devices outside of the Aqara app, with the use of the button on the top of the camera (three presses puts the G3 hub into pairing mode).

You can use a Chinese G3 even if you’re not located in China, but you do need to be signed into the Chinese server in the Aqara app in order to bind the camera fully to make use of the aforementioned additional recording options. This also means that if, for example, you’re in the US, with a Chinese G3, signed into the China server, you can’t easily add a US Aqara wall switch, so it’s best to get the G3 for your region, for hassle-free service. The G3 is now available outside of Mainland China, having been released in the U.S., Canada and France, with other territories to follow later. Unlike the G2H, the G3 uses a USB-C port for power, so you can use any suitable USB-C to USB A cable along with a USB power source to power it.

In addition to the G3’s basic functionality as a camera with a motion sensor, it also has all four alarm modes exposed to HomeKit, which the G2H does not offer. The G3 records in 2K via an inserted SD card, and can support cards up to 128GB.

Within the Aqara app, the G3 also offers a lot more than the G2H, which includes motion tracking for dogs & cats and humans, with separate functionality for both types. It also has standard motion detection, as well as facial recognition, gesture recognition, and abnormal sound detection. You can also call the account holder of the camera by pressing the LED ring, and the G3 even includes an IR blaster to control devices that use an infrared remote control.

AQARA HUB M3

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• Supports Ethernet or WiFi connection
• Has the option to use Power over Ethernet to provide power to the hub
• Can work with Apple Home using either Matter or HomeKit integrations
• Can support up to 127 Zigbee/Thread child devices
• Uses Zigbee 3.0 or Thread to connect to child devices
• Regional models supported in the following areas – China, North America, Europe (RoW)
• Works with Apple Home and Aqara Home apps
• Can work with third-party Matter devices (Thread, WiFi, Bridged)
• Includes audio speaker (for alarm sounds and more)
• Four alarm modes – Off, Away, Home, Night/Sleep (syncs with Apple Home) *
• Can control your AC and expose the controls to Apple Home **
• Has built-in IR blaster

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The Aqara Hub M3 differs from all previous Aqara hubs in that it is also a Thread Border Router (TBR), and also a Matter Controller for Aqara’s own ecosystem. It’s still a Zigbee hub, but because of the aforementioned differences, it can work with Matter products not only from Aqara (P2 contact sensor, P2 motion sensor), but from third-party manufacturers too. These can be Matter over Thread, Matter over WiFi or Matter over Bridge. The latter means that if you have a third-party bridge that is also Matter compatible, you can add it to the M3, and then expose the devices connected to said bridge. Philips Hue is a prime example of this, as it’s a Zigbee hub, but is now also Matter compatible. This allows Hue lighting products connected to the Hue Bridge to be exposed to the Aqara ecosystem and be controlled by the app’s automations, or even Aqara’s own switches or wireless buttons. It has a built-in IR blaster that allows you to control third-party devices that use a standard infrared remote control. like the M2, this hub can connect to your network either via WiFi or a wired connection via the ethernet port, but unlike the M2***, the M3 can connect to either 2.4 or 5.0GHz WiFi, and can also be powered via the ethernet port if the connecting device has PoE functionality.

* Exposes the alarm/security system, if added to Apple Home using the HomeKit integration

** Exposes the AC controls to Apple Home if added using the Matter integration

*** A later version of the M2, released in China, does offer PoE

MI SMART GATEWAY

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Uses WiFi 2.4 GHz to connect to your network/HomeKit

• Can support up to 128 child devices
• Uses Zigbee 3.0 to connect to child devices
• Acts as both a Bluetooth hub and Bluetooth Mesh hub for Mijia Bluetooth and Bluetooth Mesh devices
• Uses a Micro-USB port in combination with any USB type power supply
• Available worldwide, with no regional restrictions
• Works with Apple Home and Mi Home apps
• No audio speaker, only a buzzer to confirm certain functions

The Mi Smart Gateway, also known variously as the Mijia Gateway 3, or the Mijia Multimode Smart Gateway, is not an Aqara product, although it’s made by Aqara’s parent company (Lumi United) for Xiaomi. As such, it is not compatible with the Aqara Home app, only Mi Home and of course Apple HomeKit. Like the Aqara M2, this uses a micro USB power connection, which makes using this in different regions easy, with a suitable USB power supply. Unlike all other hubs as part of the larger Xiaomi ecosystem, this is now region-free, so not only should you be able to buy these locally, but if you previously bought a Chinese model, that will now be usable in any region. Unlike the M2, this doesn’t come with an ethernet port, and neither does it have a speaker or LED light, so in this sense, it’s the most basic of hubs. However, it is Zigbee 3.0, and region-free, as already mentioned, so these could be seen as minor plusses compared to the original Aqara hub. Additionally, it can work with both Mi and Aqara branded sensors, although as with all hubs that have come after the original hub, you may find some devices have yet to be certified to be exposed to HomeKit. In HomeKit it doesn’t show up with its own tile, as there are no additional functions, like a light or security alarm, so you can only see the existence of this device in the ‘Hubs and Bridges’ section in the settings for the Home app.

Aside from the Zigbee 3.0 connectivity, the Mi Smart Gateway also acts as a Bluetooth hub for Xiaomi smart home devices that use Bluetooth. HomeKit compatible Bluetooth devices in HomeKit use either a direct connection to your phone or a Home Hub (Apple TV, HomePod/Mini, iPad). In Mi Home, Bluetooth devices also connect directly to your phone, but many Xiaomi smart devices also contain Bluetooth hubs, like some of their cameras, sensors or even ceiling lights. These allow those Bluetooth devices to be accessed remotely, as the devices that contain a Bluetooth hub invariably use WiFi. Not only does the Mi Smart Gateway fulfil this type of function, but it is also designed to work with Bluetooth Mesh devices in the same way. Bluetooth Mesh is similar to Zigbee, in that as you add these mesh devices to your home, the reach of the devices is expanded outward, like an ever-expanding fishing net, with each additional device relaying information back and forth, thereby removing the issue of a Bluetooth (mesh) device being out of range of either your phone or a Bluetooth mesh gateway. Yeelight makes a Bluetooth mesh gateway that also works with Apple HomeKit, but it works exclusively with its own range of Bluetooth mesh lighting products at present. This would be the same for the Mi Smart Gateway, although at present I’m not aware of any Bluetooth mesh devices that are designed to work with the Mi smart Gateway, much less whether they’re exposed to HomeKit. That said, Xiaomi has a series of Bluetooth devices coming out – motion sensor, contact sensor, and smoke sensor – that all use Bluetooth, so it’s possible that these are designed to work with the Mi Smart Gateway and from there (eventually) get exposed to HomeKit. It’s all a bit of an unknown at the moment though.

To wrap things up, as with any area of technology, as things improve, newer models come out, and hubs are not immune to this fact either. Aqara already have more hub-based devices on the way, including a wall outlet based hub, an LCD display wall mounted hub, and even a USB stick hub are all in the making, as was revealed in our post back in September, but that shouldn’t dissuade you from purchasing a hub now, as many of these upcoming ones won’t surface for a while, and even then only initially in Mainland China.

That’s everything I have to say on these different options for now, and I hope it’s of some use for those a bit lost and bewildered at the options out there, but if there’s something I missed, or there are further questions you have, feel free to drop a comment below.