At first glance, the LinknLink iSG Display looks like a tablet. But once you power it up, you quickly realize it’s trying to be something much bigger: a complete smart home hub with a dashboard, built-in automations, and even a Home Assistant server installed by default.
LinknLink calls it the Intelligent Super Gateway—or simply the iSG Display. It’s currently in beta, so it’s not perfect yet, but the idea is bold: one device that can control almost everything in your smart home, and still give power users a path to Home Assistant.
So… could this become a “Home Assistant killer” someday? Let’s take a closer look.
You can buy the iSG Display here: https://shop.linknlink.com/products/isg-the-next-generation-all-in-one-super-smart-home-gateway
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What You Get in the Box
Inside the box you’ll find:
- The iSG Display
- A quick start guide
- A stand for desk placement
- A power adapter (no battery—this device must stay plugged in)
- An adapter cable for Ethernet
- A remote control (not supported yet, but planned via firmware)
- A tiny but important extra: a Zigbee USB stick for pairing Zigbee devices
Port-wise, the iSG Display includes power, USB (for the Zigbee stick), micro USB, and an SD card slot.
Standalone Smart Home Hub: Tuya, Matter, Zigbee (No Home Assistant Required)
The biggest surprise: you can use the iSG Display as a standalone hub.
I paired multiple devices directly to the iSG Display, including:
- A Matter lamp
- A Zigbee lamp
- An Aqara door sensor
- A Reolink camera
Pairing was mostly smooth, although Zigbee devices sometimes needed a few attempts—possibly due to interference from my existing Zigbee network. Once paired, everything worked reliably.
Right now, lights added via the iSG interface can be toggled on/off only, but LinknLink says brightness and RGB controls are coming in future firmware. If you add lights via Home Assistant instead, you can already control brightness and color.
Automations Made Easy
The iSG Display also supports simple automations—very similar to what Home Assistant users are used to.
For example, I created two basic routines:
- Door closes → light turns on
- Door opens → light turns off
This kind of setup is extremely approachable for people who want automation without learning YAML, templates, or advanced logic.
Voice Assistants and Ecosystems
The iSG Display can connect to:
- Alexa
- Google Home
- HomeKit
So you can control iSG-paired devices by voice and integrate them into existing ecosystems.
Home Assistant on the iSG Display
Here’s where things get interesting.
The iSG Display includes a Home Assistant server, and it automatically recognizes many devices on your network. You can build dashboards in Home Assistant and use the iSG Display as a dedicated Home Assistant dashboard.
Even better: devices you paired in the iSG interface show up inside Home Assistant automatically—so you don’t need to pair everything twice. That’s a smart approach, and it makes the whole platform feel more unified than you might expect from a beta product.
The “HA Service” Feature: Connect Your Existing Home Assistant
This was the most mindblowing part of testing.
With the HA Service button, you can connect your existing external Home Assistant server to the iSG Display. That means:
- You can control all your existing HA devices from the iSG Display
- You can display them on the iSG dashboard
- You can create new automations for them
- Advanced controls like brightness and RGB color can work through Home Assistant
In short: the iSG Display can become a beautiful, easy front-end for your current Home Assistant setup—without forcing you to rebuild your smart home from scratch.
Upcoming Features (According to LinknLink)
LinknLink shared several features they plan to add soon, including:
- iSG Lite (APK) to turn any Android tablet into an extra iSG dashboard
- Home Assistant support for IR TV/AC (via eHub/eRemote)
- Modbus TCP
- MQTT server
- Video doorbell support in Home Assistant
- Button categories
- Zigbee curtain motors
- Zigbee flood sensors
If these arrive as promised, the iSG ecosystem could expand quickly.
Downsides (What Needs Work)
Even with the potential, there are real drawbacks today:
1) Only one USB port
You have to choose:
- Use the USB port for the Zigbee stick, or
- Use it for the Ethernet adapter
Not ideal for a hub device.
2) Home Assistant updates are tied to firmware
You can’t update Home Assistant from within HA itself. Updates come via iSG firmware.
3) Not Home Assistant OS
Because it’s not HA OS, you miss features like the add-on store.
4) iSG-native lights are still limited
Currently on/off only when paired directly to the iSG interface (brightness/RGB coming later).
5) Slight wall gap
There’s a thicker block on the back, so it sits slightly away from the wall.
Conclusion: A Strong “Easy Mode” Competitor (But Not a Full Replacement Yet)
The LinknLink iSG Display isn’t ready to replace Home Assistant for power users—yet. But it’s already a very compelling smart home hub for less technical users who want:
- Zigbee + Matter + Tuya support
- A clean dashboard experience
- Easy automations
- Home Assistant capability when they’re ready
In that sense, the iSG Display doesn’t just compete with Home Assistant. It also puts pressure on platforms like Homey, because it combines “simple hub” vibes with “advanced Home Assistant” potential.
It might be early days, but LinknLink is clearly building something ambitious.
You can buy the iSG Display here: https://shop.linknlink.com/products/isg-the-next-generation-all-in-one-super-smart-home-gateway
