The Smart Device Compare comparison

Sonoff Zigbee Bridge Ultra vs X-Sense SBS50 Base Station

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Sonoff Zigbee Bridge Ultra and X-Sense SBS50 Base Station

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

Ethernet (connectivity): Sonoff Zigbee Bridge Ultra — Yes; X-Sense SBS50 Base Station — No (Wi-Fi is the only uplink; the specifications list no wired network port).
Apple Home (integrations): Sonoff Zigbee Bridge Ultra — Yes; X-Sense SBS50 Base Station — No (X-Sense claims no HomeKit support for this model, and the SBS50 is not Matter certified so it has no Matter path into Apple Home either).
Google Home (integrations): Sonoff Zigbee Bridge Ultra — Yes; X-Sense SBS50 Base Station — No (X-Sense advertises Alexa as the only voice platform for its base station line and claims no Google support on the product page or the collection listings).
SmartThings (integrations): Sonoff Zigbee Bridge Ultra — Yes; X-Sense SBS50 Base Station — No (X-Sense claims no SmartThings support for this model, and the SBS50 is not Matter certified so the automatic Works with SmartThings grant does not apply).

Specifications to check side by side

Subdevices (features): Sonoff Zigbee Bridge Ultra — 256; X-Sense SBS50 Base Station — 50 (X-Sense states one SBS50 manages up to 50 devices, with a cap of 10 STH51 thermo-hygrometers among them).

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 · Sonoff

Sonoff Zigbee Bridge Ultra

Last updated September 2026

View full device profile

Option 2 · X-Sense

X-Sense SBS50 Base Station

Catalog update date not recorded

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.

8differences with recorded values for every device

3rows with missing or unspecified information

Consider your setup

Apple Home

Sonoff Zigbee Bridge UltraYes
X-Sense SBS50 Base StationNo

Confirm which features appear in Apple Home and whether extra hardware or a subscription is needed for your intended use.

Inspect the specifications

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

Sonoff Zigbee Bridge Ultra: Yes
X-Sense SBS50 Base Station: Yes
Catalog note
Official specifications list a 2.4 GHz Wi-Fi frequency and IEEE 802.11b/g/n as the wireless protocol

5 GHz Wi-Fi

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
X-Sense states the base station is compatible with 2.4 GHz Wi-Fi only and is not compatible with a 5 GHz network

Ethernet

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.

X-Sense SBS50 Base Station

Catalog note

Wi-Fi is the only uplink; the specifications list no wired network port

Features

Node Red

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No

Onvif

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No

RTSP

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No

Subdevices

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.

X-Sense SBS50 Base Station

Catalog note

X-Sense states one SBS50 manages up to 50 devices, with a cap of 10 STH51 thermo-hygrometers among them

Tailscale

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No

Hardware

Cpu

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.

X-Sense SBS50 Base Station

Not recorded

Memory

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.

X-Sense SBS50 Base Station

Not recorded

Microphone

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
No microphone or voice feature is listed in the official specifications; the unit only signals with its LED and its sounder

microSD card slot

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
The base station relays alarms to the X-Sense cloud and has no card slot or local storage of any kind

Power Over Ethernet

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
Powered by its bundled adapter (input 100-240 V AC 50/60 Hz, output 5.0 V 1.0 A) and has no Ethernet port at all

Speakers

Sonoff Zigbee Bridge Ultra: Yes
X-Sense SBS50 Base Station: Yes
Catalog note
Built-in sounder rated at 100 dB, adjustable, that sounds together with every connected alarm

Storage

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.

X-Sense SBS50 Base Station

Not recorded

Integrations

Alexa

Sonoff Zigbee Bridge Ultra: Yes
X-Sense SBS50 Base Station: Yes
Catalog note
X-Sense tags its base-station devices as Alexa Compatible, and the Amazon listings for the SBS50 accessories (the SKP0A keypad, the SDS0A door sensor and the SMS0A motion sensor) state Compatible with Alexa, Requires SBS50 Base Station, so the base station is the Alexa bridge for the system

Apple Home

Sonoff Zigbee Bridge Ultra: Yes
X-Sense SBS50 Base Station: No
Catalog note
X-Sense claims no HomeKit support for this model, and the SBS50 is not Matter certified so it has no Matter path into Apple Home either

Google Home

Sonoff Zigbee Bridge Ultra: Yes
X-Sense SBS50 Base Station: No
Catalog note
X-Sense advertises Alexa as the only voice platform for its base station line and claims no Google support on the product page or the collection listings

Home Assistant

Sonoff Zigbee Bridge Ultra: Yes
X-Sense SBS50 Base Station: Yes
Catalog note
X-Sense states that its Home Assistant compatibility runs through the SBS50 base station ecosystem, and the python-xsense library behind the community HACS integration maps SBS50 explicitly as a base station entity

SmartThings

Sonoff Zigbee Bridge Ultra: Yes
X-Sense SBS50 Base Station: No
Catalog note
X-Sense claims no SmartThings support for this model, and the SBS50 is not Matter certified so the automatic Works with SmartThings grant does not apply

Protocols

Bluetooth

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
The specifications enumerate the radios as IEEE 802.11b/g/n Wi-Fi plus the 915 MHz (US) and 868 MHz (EU) sub-GHz link to the alarms, with no Bluetooth

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No

Matter bridge

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.

X-Sense SBS50 Base Station

Catalog note

The CSA certified-products database lists only the separate SBS0A Matter base station for X-Sense; the SBS50 has no Matter certification and exposes its sub-devices through the X-Sense app instead

Third Party Devices

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.
X-Sense SBS50 Base Station: No
Catalog note
Links only X-Sense alarms and sensors (smoke, CO, combo, water leak, thermo-hygrometer) over its own 915/868 MHz radio, up to 50 devices; no other brands.

Thread border router

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No

Z Wave

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No

Zigbee coordinator

Sonoff Zigbee Bridge Ultra: Yes
X-Sense SBS50 Base Station: No
Catalog note
Sub-devices join over X-Sense's own Link+ Pro radio at 915 MHz (US) or 868 MHz (EU), not Zigbee

Sensors

Humidity

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
Humidity comes from the paired thermo-hygrometers; the 0-85% RH figure is the base station's operating range

Light

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
The three-colour LED is an indicator, not an ambient light sensor

Motion

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
Motion is detected by the separate SMS0A sensor, which reports through the base station

Temperature

Sonoff Zigbee Bridge Ultra: No
X-Sense SBS50 Base Station: No
Catalog note
The base station reads temperature only from the STH51 and STH0A thermo-hygrometers paired to it; the 4.4-37.8 C figure in its specifications is its own operating range, not a reading it takes

Specifications for Sonoff Zigbee Bridge Ultra versus X-Sense SBS50 Base Station
Specification	Sonoff Zigbee Bridge Ultra	X-Sense SBS50 Base Station
Connectivity
2.4 GHz Wi-Fi	Yes	Yes Catalog note Official specifications list a 2.4 GHz Wi-Fi frequency and IEEE 802.11b/g/n as the wireless protocol
5 GHz Wi-Fi	No	No Catalog note X-Sense states the base station is compatible with 2.4 GHz Wi-Fi only and is not compatible with a 5 GHz network
Ethernet	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.	No Catalog note Wi-Fi is the only uplink; the specifications list no wired network port
Features
Node Red	No	No
Onvif	No	No
RTSP	No	No
Subdevices	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.	50 Catalog note X-Sense states one SBS50 manages up to 50 devices, with a cap of 10 STH51 thermo-hygrometers among them
Tailscale	No	No
Hardware
Cpu	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.	Not recorded
Memory	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.	Not recorded
Microphone	No	No Catalog note No microphone or voice feature is listed in the official specifications; the unit only signals with its LED and its sounder
microSD card slot	No	No Catalog note The base station relays alarms to the X-Sense cloud and has no card slot or local storage of any kind
Power Over Ethernet	No	No Catalog note Powered by its bundled adapter (input 100-240 V AC 50/60 Hz, output 5.0 V 1.0 A) and has no Ethernet port at all
Speakers	Yes	Yes Catalog note Built-in sounder rated at 100 dB, adjustable, that sounds together with every connected alarm
Storage	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.	Not recorded
Integrations
Alexa	Yes	Yes Catalog note X-Sense tags its base-station devices as Alexa Compatible, and the Amazon listings for the SBS50 accessories (the SKP0A keypad, the SDS0A door sensor and the SMS0A motion sensor) state Compatible with Alexa, Requires SBS50 Base Station, so the base station is the Alexa bridge for the system
Apple Home	Yes	No Catalog note X-Sense claims no HomeKit support for this model, and the SBS50 is not Matter certified so it has no Matter path into Apple Home either
Google Home	Yes	No Catalog note X-Sense advertises Alexa as the only voice platform for its base station line and claims no Google support on the product page or the collection listings
Home Assistant	Yes	Yes Catalog note X-Sense states that its Home Assistant compatibility runs through the SBS50 base station ecosystem, and the python-xsense library behind the community HACS integration maps SBS50 explicitly as a base station entity
SmartThings	Yes	No Catalog note X-Sense claims no SmartThings support for this model, and the SBS50 is not Matter certified so the automatic Works with SmartThings grant does not apply
Protocols
Bluetooth	No	No Catalog note The specifications enumerate the radios as IEEE 802.11b/g/n Wi-Fi plus the 915 MHz (US) and 868 MHz (EU) sub-GHz link to the alarms, with no Bluetooth
Ir	No	No
Matter bridge	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.	No Catalog note The CSA certified-products database lists only the separate SBS0A Matter base station for X-Sense; the SBS50 has no Matter certification and exposes its sub-devices through the X-Sense app instead
Third Party Devices	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.	No Catalog note Links only X-Sense alarms and sensors (smoke, CO, combo, water leak, thermo-hygrometer) over its own 915/868 MHz radio, up to 50 devices; no other brands.
Thread border router	No	No
Z Wave	No	No
Zigbee coordinator	Yes	No Catalog note Sub-devices join over X-Sense's own Link+ Pro radio at 915 MHz (US) or 868 MHz (EU), not Zigbee
Sensors
Humidity	No	No Catalog note Humidity comes from the paired thermo-hygrometers; the 0-85% RH figure is the base station's operating range
Light	No	No Catalog note The three-colour LED is an indicator, not an ambient light sensor
Motion	No	No Catalog note Motion is detected by the separate SMS0A sensor, which reports through the base station
Temperature	No	No Catalog note The base station reads temperature only from the STH51 and STH0A thermo-hygrometers paired to it; the 4.4-37.8 C figure in its specifications is its own operating range, not a reading it takes

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