The Smart Device Compare comparison

Lutron Caseta Smart Hub vs Sonoff Zigbee Bridge Ultra

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Lutron Caseta Smart Hub and Sonoff Zigbee Bridge Ultra

A summary of selected recorded differences between these hubs. Check the full specification table below for details and conditions.

Feature differences among your selected devices

2.4 GHz Wi-Fi (connectivity): Lutron Caseta Smart Hub — No (The smart hub has no Wi-Fi radio: it connects to a LAN port on the router with the included Ethernet cable.); Sonoff Zigbee Bridge Ultra — Yes.
Speakers (hardware): Lutron Caseta Smart Hub — No; Sonoff Zigbee Bridge Ultra — Yes.
Matter bridge (protocols): Lutron Caseta Smart Hub — No; Sonoff Zigbee Bridge Ultra — Yes.
Third Party Devices (protocols): Lutron Caseta Smart Hub — No (Pairs only Lutron Clear Connect devices (Caseta dimmers and switches, Pico remotes, Serena shades); other brands connect through cloud or app integrations, never to its radio.); Sonoff Zigbee Bridge Ultra — Yes (Pairs SONOFF and other brands' Zigbee 3.0 plugs, switches, sensors, lights, curtains, thermostats and valves; it is only a Matter bridge, not a Matter controller.).

Specifications to check side by side

Subdevices (features): Lutron Caseta Smart Hub — 75 (Supports up to 75 wireless devices (Caseta dimmers, plug-in dimmers and switches, Pico remotes, wireless shades); the hub itself counts as one of them.); Sonoff Zigbee Bridge Ultra — 256.

Information still to confirm

3 of 31 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Lutron

Lutron Caseta Smart Hub

Last updated October 2026

View full device profile

Option 2 · Sonoff

Sonoff Zigbee Bridge Ultra

Last updated September 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

6differences with recorded values for every device

3rows with missing or unspecified information

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 31 of 31 rows. “Not recorded” does not mean “No”.

Reading layout

Connectivity

2.4 GHz Wi-Fi

Lutron Caseta Smart Hub: No
Catalog note
The smart hub has no Wi-Fi radio: it connects to a LAN port on the router with the included Ethernet cable.
Sonoff Zigbee Bridge Ultra: Yes

5 GHz Wi-Fi

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Ethernet

Lutron Caseta Smart Hub

Yes

Catalog note

Ethernet: 3 ft (0.92 m) cable included (for internet and Lutron App connection).

Sonoff Zigbee Bridge Ultra

Yes

Manufacturer source

An RJ45 Ethernet port is included.

Sonoff Zigbee Bridge Ultra manufacturer product page →

Source section: Product description
Model: Sonoff Zigbee Bridge Ultra
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Features

Node Red

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Onvif

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

RTSP

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Subdevices

Lutron Caseta Smart Hub

Catalog note

Supports up to 75 wireless devices (Caseta dimmers, plug-in dimmers and switches, Pico remotes, wireless shades); the hub itself counts as one of them.

Sonoff Zigbee Bridge Ultra

256

Manufacturer source

The hub supports up to 256 compatible SONOFF Zigbee accessories.

Sonoff Zigbee Bridge Ultra manufacturer product page →

Source section: Product description
Model: Sonoff Zigbee Bridge Ultra
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Tailscale

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Hardware

Cpu

Lutron Caseta Smart Hub

Not recorded

Sonoff Zigbee Bridge Ultra

1.5GHz Dual-core

Manufacturer source

The processor has two cores running at 1.5 GHz.

Sonoff Zigbee Bridge Ultra manufacturer product page →

Source section: Product description
Model: Sonoff Zigbee Bridge Ultra
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Memory

Lutron Caseta Smart Hub

Not recorded

Sonoff Zigbee Bridge Ultra

1GB DDR4

Manufacturer source

Memory is 1 GB DDR4.

Sonoff Zigbee Bridge Ultra manufacturer product page →

Source section: Product description
Model: Sonoff Zigbee Bridge Ultra
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Microphone

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

microSD card slot

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Power Over Ethernet

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Speakers

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: Yes

Storage

Lutron Caseta Smart Hub

Not recorded

Sonoff Zigbee Bridge Ultra

8GB eMMC

Manufacturer source

Internal storage is 8 GB eMMC.

Sonoff Zigbee Bridge Ultra manufacturer product page →

Source section: Product description
Model: Sonoff Zigbee Bridge Ultra
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Integrations

Alexa

Lutron Caseta Smart Hub: Yes
Sonoff Zigbee Bridge Ultra: Yes

Apple Home

Lutron Caseta Smart Hub: Yes
Catalog note
The smart hub contains Apple Home technology, so Siri can control the lights and shades it hosts.
Sonoff Zigbee Bridge Ultra: Yes

Google Home

Lutron Caseta Smart Hub: Yes
Sonoff Zigbee Bridge Ultra: Yes

Home Assistant

Lutron Caseta Smart Hub: Yes
Catalog note
The official Home Assistant Lutron Caseta integration lists this exact hub (L-BDG2-WH) among its supported hardware.
Sonoff Zigbee Bridge Ultra: Yes

SmartThings

Lutron Caseta Smart Hub: Yes
Catalog note
Lutron lists Samsung SmartThings as a Caseta partner: lights and shades are controlled from the SmartThings app.
Sonoff Zigbee Bridge Ultra: Yes

Protocols

Bluetooth

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Matter bridge

Lutron Caseta Smart Hub

Sonoff Zigbee Bridge Ultra

Yes

Manufacturer source

Supported devices can be exposed through Matter bridging.

Sonoff Zigbee Bridge Ultra manufacturer product page →

Source section: Product description
Model: Sonoff Zigbee Bridge Ultra
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Third Party Devices

Lutron Caseta Smart Hub: No
Catalog note
Pairs only Lutron Clear Connect devices (Caseta dimmers and switches, Pico remotes, Serena shades); other brands connect through cloud or app integrations, never to its radio.
Sonoff Zigbee Bridge Ultra: Yes
Catalog note
Pairs SONOFF and other brands' Zigbee 3.0 plugs, switches, sensors, lights, curtains, thermostats and valves; it is only a Matter bridge, not a Matter controller.

Thread border router

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Z Wave

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Zigbee coordinator

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: Yes

Sensors

Humidity

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Light

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Motion

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Temperature

Lutron Caseta Smart Hub: No
Sonoff Zigbee Bridge Ultra: No

Specifications for Lutron Caseta Smart Hub versus Sonoff Zigbee Bridge Ultra
Specification	Lutron Caseta Smart Hub	Sonoff Zigbee Bridge Ultra
Connectivity
2.4 GHz Wi-Fi	No Catalog note The smart hub has no Wi-Fi radio: it connects to a LAN port on the router with the included Ethernet cable.	Yes
5 GHz Wi-Fi	No	No
Ethernet	Yes Catalog note Ethernet: 3 ft (0.92 m) cable included (for internet and Lutron App connection).	Yes Manufacturer source An RJ45 Ethernet port is included. Sonoff Zigbee Bridge Ultra manufacturer product page → Source section Product description Model Sonoff Zigbee Bridge Ultra Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked. Document check only; not a hands-on test or verification of every regional or firmware variant.
Features
Node Red	No	No
Onvif	No	No
RTSP	No	No
Subdevices	75 Catalog note Supports up to 75 wireless devices (Caseta dimmers, plug-in dimmers and switches, Pico remotes, wireless shades); the hub itself counts as one of them.	256 Manufacturer source The hub supports up to 256 compatible SONOFF Zigbee accessories. Sonoff Zigbee Bridge Ultra manufacturer product page → Source section Product description Model Sonoff Zigbee Bridge Ultra Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked. Document check only; not a hands-on test or verification of every regional or firmware variant.
Tailscale	No	No
Hardware
Cpu	Not recorded	1.5GHz Dual-core Manufacturer source The processor has two cores running at 1.5 GHz. Sonoff Zigbee Bridge Ultra manufacturer product page → Source section Product description Model Sonoff Zigbee Bridge Ultra Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked. Document check only; not a hands-on test or verification of every regional or firmware variant.
Memory	Not recorded	1GB DDR4 Manufacturer source Memory is 1 GB DDR4. Sonoff Zigbee Bridge Ultra manufacturer product page → Source section Product description Model Sonoff Zigbee Bridge Ultra Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked. Document check only; not a hands-on test or verification of every regional or firmware variant.
Microphone	No	No
microSD card slot	No	No
Power Over Ethernet	No	No
Speakers	No	Yes
Storage	Not recorded	8GB eMMC Manufacturer source Internal storage is 8 GB eMMC. Sonoff Zigbee Bridge Ultra manufacturer product page → Source section Product description Model Sonoff Zigbee Bridge Ultra Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked. Document check only; not a hands-on test or verification of every regional or firmware variant.
Integrations
Alexa	Yes	Yes
Apple Home	Yes Catalog note The smart hub contains Apple Home technology, so Siri can control the lights and shades it hosts.	Yes
Google Home	Yes	Yes
Home Assistant	Yes Catalog note The official Home Assistant Lutron Caseta integration lists this exact hub (L-BDG2-WH) among its supported hardware.	Yes
SmartThings	Yes Catalog note Lutron lists Samsung SmartThings as a Caseta partner: lights and shades are controlled from the SmartThings app.	Yes
Protocols
Bluetooth	No	No
Ir	No	No
Matter bridge	No	Yes Manufacturer source Supported devices can be exposed through Matter bridging. Sonoff Zigbee Bridge Ultra manufacturer product page → Source section Product description Model Sonoff Zigbee Bridge Ultra Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The bridge and Matter controller must share a LAN. Accessory compatibility and bridged features must be checked. Document check only; not a hands-on test or verification of every regional or firmware variant.
Third Party Devices	No Catalog note Pairs only Lutron Clear Connect devices (Caseta dimmers and switches, Pico remotes, Serena shades); other brands connect through cloud or app integrations, never to its radio.	Yes Catalog note Pairs SONOFF and other brands' Zigbee 3.0 plugs, switches, sensors, lights, curtains, thermostats and valves; it is only a Matter bridge, not a Matter controller.
Thread border router	No	No
Z Wave	No	No
Zigbee coordinator	No	Yes
Sensors
Humidity	No	No
Light	No	No
Motion	No	No
Temperature	No	No

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology