Consumers are always looking for a simple, off-the-shelf solution to control lighting and smart home applications. Most users prioritize ease of use and security. According to the research results of IMS...
For a long time, people have been arguing about a question, which ZigBee and Z-wave are the best solutions for smart home. Obviously one of the two is better, but now we can see the conclusion?
According to the ZigBee Alliance, ZigBee already has a global standard for a set of products. Standardization also allows ZigBee to control more devices, appliances, lighting, the environment, energy management and security, and any device that can connect to the ZigBee network.
On the other hand, SigmaDesigns proposed Z–Wave, a radio-based communication technology commonly used in residential and small commercial real estate environment control and status reading. Z-wave applications in smart homes are generally home entertainment, lighting and appliance control, HVAC systems and security guarantees.
The two are so similar. So, what difference do they have?
Advantages and disadvantages comparison
From the above introduction, we can know that the two technical working environments and functions are similar. Now let's dive into the details and find out the differences between them, as well as their strengths and weaknesses.
Physical layer and modulation mode
The first significant difference is the difference in the physical layer. Z-wave uses frequencies below 1Ghz, while ZigBee operates at 2.4GHz. Smart home systems below 1 GHz require different SKUs in different regions. The frequency of Australia and Brazil is 921.4MHz, China and Singapore are 868.4MHz, India is 865.2MHz, the United States is 908.4MHz and Japan has two frequencies. All in all, ZigBee is standardized, while Z-wave is more fragmented.
Z-wave uses frequency shift keying (FSK) modulation, which is not friendly enough for environments below 1 GHz. ZigBee is based on more advanced Direct Sequence Spread Spectrum (DSSS) modulation, which also makes ZigBee more robust.
Two useful information
Both 1ZigBee and Z-wave are mesh networks, so you are not directly connected to the remote device but through a mesh connection.
2 Since Z-wave operates in the frequency band below 1 GHz, you need a larger antenna (usually 2.5 times). We usually like smaller products, so this has become a disadvantage of Z-wave.
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