Z-Wave is a proprietary mesh protocol known for its reliability and mandatory device certification. It's the gold standard for smart locks and security systems.
Overview
Z-Wave operates on sub-GHz frequencies (908.42 MHz in North America), avoiding interference with WiFi and Zigbee. Every Z-Wave device must pass certification testing.
Pros
- Guaranteed interoperability - All Z-Wave devices work together
- No WiFi interference - Uses dedicated frequency
- Strong security - S2 encryption standard
- Mesh networking - Self-healing network
Cons
- Requires a hub - Need Z-Wave controller
- Fewer device options - Smaller ecosystem than Zigbee
- Higher device cost - Certification adds expense
Best Use Cases
- Smart locks (security critical)
- Garage door controllers
- Security sensors
- Critical automations
Compatible Hubs
- Samsung SmartThings
- Ring Alarm Base Station
- Hubitat Elevation
- Home Assistant