The Smart Device Compare comparison
Smlight SLZB-MR3 vs Sonoff Dongle Lite MG21
Understand the differences. Decide what matters to your home.
Build another comparison →Before you compare every specification
Key differences between Smlight SLZB-MR3 and Sonoff Dongle Lite MG21
A summary of selected recorded differences between these dongles. Check the full specification table below for details and conditions.
Feature differences among your selected devices
- 2.4 GHz Wi-Fi (connectivity): Smlight SLZB-MR3 — Yes; Sonoff Dongle Lite MG21 — No.
- Ethernet (connectivity): Smlight SLZB-MR3 — Yes; Sonoff Dongle Lite MG21 — No.
- Bluetooth Proxy (features): Smlight SLZB-MR3 — Yes; Sonoff Dongle Lite MG21 — No.
- Dual Network (features): Smlight SLZB-MR3 — Yes; Sonoff Dongle Lite MG21 — No.
Specifications to check side by side
- Antenna Gain (radio specifications): Smlight SLZB-MR3 — +5dB; Sonoff Dongle Lite MG21 — +2dBi.
- External Antennas (radio specifications): Smlight SLZB-MR3 — 2; Sonoff Dongle Lite MG21 — 1.
- Zigbee Chip Manufacturer (zigbee): Smlight SLZB-MR3 — Silicon Labs / Texas Instruments; Sonoff Dongle Lite MG21 — Silicon Labs.
- Zigbee Chip Model (zigbee): Smlight SLZB-MR3 — EFR32MG24 / CC2674P10; Sonoff Dongle Lite MG21 — EFR32MG21.
Information still to confirm
- 3 of 25 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.
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.
9differences 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.
Showing 25 of 25 rows. “Not recorded” does not mean “No”.
Connectivity
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- No
- Smlight SLZB-MR3
- No
- Sonoff Dongle Lite MG21
- No
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- No
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- Yes
Manufacturer source
The dongle connects to its host through USB.
Sonoff Dongle Lite MG21 manufacturer product page →- Source section
- Product description
- Model
- Sonoff Dongle Lite MG21
- Region
- Manufacturer product page; no universal regional compatibility implied
- Firmware
- Not specified by this source
- Checked
The host software and flashed firmware determine the radio role. A Thread-capable dongle alone does not establish a complete border router.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Features
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- No
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- No
- Smlight SLZB-MR3
- No
- Sonoff Dongle Lite MG21
- No
Integrations
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- Yes
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- Yes
Matter
- Smlight SLZB-MR3
- No
- Sonoff Dongle Lite MG21
- No
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- Yes
Power
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- No
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- Yes
Radio Specifications
- Smlight SLZB-MR3
- +20dBm
- Sonoff Dongle Lite MG21
- +20dBm
- Smlight SLZB-MR3
- +5dB
- Sonoff Dongle Lite MG21
- +2dBi
- Smlight SLZB-MR3
- 2
- Sonoff Dongle Lite MG21
- 1
Z Wave
- Smlight SLZB-MR3
- Not applicable / unspecified
- Sonoff Dongle Lite MG21
- Not applicable / unspecified
- Smlight SLZB-MR3
- Not applicable / unspecified
- Sonoff Dongle Lite MG21
- Not applicable / unspecified
- Smlight SLZB-MR3
- No
- Sonoff Dongle Lite MG21
- No
- Smlight SLZB-MR3
- Not applicable / unspecified
- Sonoff Dongle Lite MG21
- Not applicable / unspecified
Zigbee
- Smlight SLZB-MR3
- Silicon Labs / Texas Instruments
- Sonoff Dongle Lite MG21
- Silicon Labs
- Smlight SLZB-MR3
- EFR32MG24 / CC2674P10
- Sonoff Dongle Lite MG21
- EFR32MG21
Manufacturer source
The radio uses the EFR32MG21 chipset.
Sonoff Dongle Lite MG21 manufacturer product page →- Source section
- Product description
- Model
- Sonoff Dongle Lite MG21
- Region
- Manufacturer product page; no universal regional compatibility implied
- Firmware
- Not specified by this source
- Checked
The host software and flashed firmware determine the radio role. A Thread-capable dongle alone does not establish a complete border router.
Document check only; not a hands-on test or verification of every regional or firmware variant.
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- Yes
- Smlight SLZB-MR3
- Yes
- Sonoff Dongle Lite MG21
- Yes
- Smlight SLZB-MR3
- Zigbee 3.0
- Sonoff Dongle Lite MG21
- Zigbee 3.0
| Specification | Smlight SLZB-MR3 | Sonoff Dongle Lite MG21 |
|---|---|---|
| Connectivity | ||
| Yes | No | |
| No | No | |
| Yes | No | |
| Yes | YesManufacturer sourceThe dongle connects to its host through USB. Sonoff Dongle Lite MG21 manufacturer product page →
The host software and flashed firmware determine the radio role. A Thread-capable dongle alone does not establish a complete border router. Document check only; not a hands-on test or verification of every regional or firmware variant. | |
| Features | ||
| Yes | No | |
| Yes | No | |
| No | No | |
| Integrations | ||
| Yes | Yes | |
| Yes | Yes | |
| Matter | ||
| No | No | |
| Yes | Yes | |
| Power | ||
| Yes | No | |
| Yes | Yes | |
| Radio Specifications | ||
| +20dBm | +20dBm | |
| +5dB | +2dBi | |
| 2 | 1 | |
| Z Wave | ||
| Not applicable / unspecified | Not applicable / unspecified | |
| Not applicable / unspecified | Not applicable / unspecified | |
| No | No | |
| Not applicable / unspecified | Not applicable / unspecified | |
| Zigbee | ||
| Silicon Labs / Texas Instruments | Silicon Labs | |
| EFR32MG24 / CC2674P10 | EFR32MG21Manufacturer sourceThe radio uses the EFR32MG21 chipset. Sonoff Dongle Lite MG21 manufacturer product page →
The host software and flashed firmware determine the radio role. A Thread-capable dongle alone does not establish a complete border router. Document check only; not a hands-on test or verification of every regional or firmware variant. | |
| Yes | Yes | |
| Yes | Yes | |
| Zigbee 3.0 | Zigbee 3.0 | |
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