ZOOZ 800 Series Smart On/Off vs ZOOZ 700 Series Z-Wave In-Wall (2026): Key Differences
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When comparing the zooz 800 series z wave long vs 700 series z wave long, you are looking at two distinct Z-Wave devices from the same brand. Both support Z-Wave Long Range, S2 security, and SmartStart pairing. The main difference lies in their form factor and installation method. The Zooz 800 Series is a standard wall switch designed to replace your existing unit directly. The Zooz 700 Series is a compact relay that installs behind the switch or at the light fixture, preserving your original switch appearance.
Key differences
| Aspect | Zooz 800 Series Smart On/Off Switch | Zooz 700 Series Z-Wave In-Wall Smart Relay |
|---|---|---|
| Form Factor | Wall Switch (ZEN76) | In-Wall Relay (ZEN51) |
| Installation Location | Replaces existing wall switch | Behind switch or at light fixture |
| Dimensions | 1.16 inches deep | 1.5 x 1.4 x 0.7 inches |
| Switch Compatibility | Works with existing on/off switches for 3-way/4-way setups | Connects to mechanical on/off or momentary switches only |
| Special Features | Replaceable paddles, built-in range test tool | Smart Bulb Mode, dry contact output |
Which one should you choose?
Choose Zooz 800 Series Smart On/Off Switch if
- You want to replace your existing wall switch with a smart device that includes a physical button.
- You need a simple 3-way or 4-way solution without rewiring other boxes.
- You prefer a device with replaceable faceplate paddles for aesthetic customization.
Choose Zooz 700 Series Z-Wave In-Wall Smart Relay if
- You want to keep your existing wall switch style and color intact.
- You need a dry contact output for non-lighting applications like sump pumps.
- You have crowded switch boxes and need the smallest possible device footprint.
Verdict: Choose the Zooz 800 Series if you want a direct replacement for your wall switch with integrated controls. Choose the Zooz 700 Series if you need to automate a setup while preserving your existing switch hardware or require a compact relay for specialized wiring scenarios.
800 vs 700 Series Switch Comparison
Connectivity and Range
Both the Zooz 800 Series Smart On/Off Switch and the Zooz 700 Series Z-Wave In-Wall Smart Relay support Z-Wave Long Range. This feature allows for ultra-reliable direct communication between the device and a compatible hub. You also get S2 authenticated security and SmartStart for instant pairing on both models. The 800 Series switch includes a built-in range test tool to help troubleshoot connectivity issues directly from the switch. Both devices act as extenders in a traditional mesh network. If your hub supports Z-Wave LR, you benefit from faster communication speeds on either choice.
Form Factor and Depth
The Zooz 800 Series Smart On/Off Switch measures 1.16 inches in depth. This slim profile helps it fit easily into shallow or crowded electrical boxes. The Zooz 700 Series Z-Wave In-Wall Smart Relay is even smaller, with dimensions of 1.5 inches by 1.4 inches and a depth of only 0.7 inches. The relay is designed to install behind the wall switch or at the light fixture. Its compact size allows it to fit in the most crowded boxes. You should check your specific box depth before purchasing either device, as space can vary significantly in older homes.
Circuit Configuration
The Zooz 800 Series Smart On/Off Switch supports 3-way, 4-way, and 5-way circuit setups. It works with existing on/off switches, allowing for simple direct solutions without needing add-on switches or rewiring other boxes. The Zooz 700 Series Z-Wave In-Wall Smart Relay supports 3-way compatible setups. However, it is primarily a relay that installs behind the switch or at the light. It requires connecting to mechanical on/off or momentary switches only. If you need a full 4-way or 5-way solution with direct switch functionality, the 800 Series is the more versatile option for complex wiring arrangements.
Wiring Requirements
Both devices require a neutral wire for installation. The Zooz 800 Series Smart On/Off Switch must be wired in a box with power and neutral. The Zooz 700 Series Z-Wave In-Wall Smart Relay also requires a neutral wire. However, the relay offers a unique installation advantage. If you do not have neutral available at any of the switch boxes, you can install this relay at the light fixture where you will have access to both power and neutral. This makes the 700 Series more flexible for homes without neutral wires at the switch location.
Functionality and Output
The Zooz 800 Series Smart On/Off Switch is a direct on/off switch with scene control, multicolor LED indicator, and replaceable paddles. It provides instant status updates and supports multi-tap triggers. The Zooz 700 Series Z-Wave In-Wall Smart Relay uses a dry contact output. This allows for unique applications outside of standard lighting, such as 120 V signal monitoring for sump pumps or motion lights. It also features a Smart Bulb Mode to control smart bulbs via Z-Wave without cutting power. The 700 Series is better for non-lighting loads or smart bulb integration.
Which ZOOZ switch suits your wiring
You want a standard wall plate replacement
The 800 Series On/Off Switch replaces your existing wall plate directly. It supports 3-way, 4-way, and 5-way setups without extra add-on switches. Its shallow 1.16-inch depth fits crowded boxes easily. You keep your preferred switch style while gaining remote control via Z-Wave Long Range and S2 security.
You lack neutral wires at the switch
The 700 Series Relay installs behind the switch or at the light fixture. This location provides access to power and neutral, solving issues where switch boxes lack neutral wires. It automates 3-way setups and works with mechanical switches. You retain your existing switch aesthetics while adding smart functionality.
You need dry contact for non-light loads
The 700 Series Relay offers a dry contact output for unique applications beyond lighting. You can use it for signal monitoring on sump pumps or motion lights. The input requires 120 V, making it versatile for various devices. This flexibility suits users with specific automation needs outside standard lamp control.
The products compared
Zooz 800 Series Smart On/Off Switch
Best for: Z-Wave Long Range multi-way lighting setups
- Hub Requirement
- Hub Required
- Connectivity
- Z-Wave, Z-Wave Long Range
- Wiring Requirement
- Neutral required
- Circuit Type
- 3-Way, 4-Way, 5-Way
- Switch Function
- On/Off Switch
View on Amazon: Zooz 800 Series Smart On/Off Switch Affiliate link
This Z-Wave Long Range switch uses the 800LR chip for faster communication and extended mesh range. It supports 3-way, 4-way, and 5-way setups without needing additional add-on switches. The slim 1.16-inch depth fits shallow boxes easily. You need a Z-Wave hub for remote control and voice commands. It includes a built-in range test tool and S2 security for reliable pairing.
Pros
- Z-Wave Long Range support for better mesh coverage
- S2 authenticated security protocol for secure pairing
- Slim 1.16-inch depth for tight electrical boxes
- Supports 3-way, 4-way, and 5-way circuits
- Built-in range test tool for troubleshooting
Cons
- Requires a Z-Wave hub for all smart features
- No direct voice control without a hub
- Does not support dimming functions
Good fit if
- You need reliable Z-Wave Long Range connectivity
- You are installing in a 3-way or 4-way setup
- You have shallow electrical boxes with limited depth
Skip if
- You want to control lights without a hub
- You need a dimmer switch for adjustable brightness
- You prefer direct voice assistant integration
Verdict: Zooz 800LR S2 On/Off Switch is ideal for users building a robust Z-Wave Long Range mesh who need flexible multi-way switching in tight spaces. It suits those prioritizing network reliability and easy installation over direct voice control.
Zooz 700 Series Z-Wave In-Wall Smart Relay
Best for: existing switch automation with neutral wire
- Smart Home Compatibility
- SmartThings, Hubitat, Home Assistant
- Hub Requirement
- Hub Required
- Connectivity
- Z-Wave, Z-Wave Long Range
- Wiring Requirement
- Neutral Required
- Circuit Type
- 3-Way
- Switch Function
- On/Off Switch
View on Amazon: Zooz 700 Series Z-Wave In-Wall Smart Relay Affiliate link
The Zooz ZEN51 is a compact smart relay that installs behind your existing wall switch. It adds Z-Wave Long Range and SmartStart capabilities to your lighting setup. The device supports 3-way wiring configurations and requires a neutral wire for installation. It maintains your current switch style while enabling remote control via a compatible hub. This relay is designed for users who want to automate lights without replacing their physical switches.
Pros
- Supports Z-Wave Long Range connectivity
- Compatible with 3-way switch setups
- Compact size fits in crowded boxes
- Includes SmartStart for easy pairing
Cons
- Requires a neutral wire for installation
- Only supports on/off control, not dimming
- Needs a compatible Z-Wave hub
Good fit if
- You want to keep your existing wall switch style
- You have neutral wires available in your switch box
- You need automation for 3-way lighting circuits
Skip if
- You do not have a neutral wire in your switch box
- You require dimming functionality for your lights
- You prefer a standalone smart switch without a hub
Verdict: The Zooz ZEN51 700 Series Smart Relay is a practical solution for adding smart control to existing lighting circuits while preserving your current switch aesthetics. It is best for homeowners who need reliable on/off automation without rewiring their entire home.
Specifications side by side
| Spec | Zooz 800 Series Smart On/Off Switch | Zooz 700 Series Z-Wave In-Wall Smart Relay |
|---|---|---|
| Smart Home Compatibility | not stated | SmartThings, Hubitat, Home Assistant |
| Hub Requirement | Hub Required | Hub Required |
| Connectivity | Z-Wave, Z-Wave Long Range | Z-Wave, Z-Wave Long Range |
| Wiring Requirement | Neutral required | Neutral Required |
| Circuit Type | 3-Way, 4-Way, 5-Way | 3-Way |
| Switch Function | On/Off Switch | On/Off Switch |
| Dimensions | not stated | 1.5 × 1.4 × 0.7 inches |
| Color | White | not stated |
| Model | ZEN76 800LR | ZEN51 |
Frequently asked questions
Can I use the Zooz 800 Series for multi-way lighting setups?
Yes, it is ideal for multi-way lighting. The device supports 3-way, 4-way, and 5-way configurations. This allows you to control lights from multiple locations without needing additional add-on switches. It fits well in tight electrical boxes due to its shallow depth.
Does the Zooz 700 Series relay require a neutral wire?
Yes, it requires a neutral wire. This relay is designed for existing switch circuits that have a neutral connection. It allows you to add smart automation while keeping your current switch aesthetics. It is not suitable for circuits lacking a neutral wire.
What is the size difference between the two Zooz devices?
The 800 Series is a standard wall plate switch. The 700 Series is a compact in-wall relay measuring 1.4 inches wide, 0.7 inches high, and 1.5 inches long. The relay fits inside the wall box, while the switch replaces the visible wall plate.
Do both devices require a smart home hub?
Yes, both require a hub. Neither device connects directly to Wi-Fi or Bluetooth. You need a Z-Wave compatible hub to manage these switches. The hub enables features like SmartStart pairing and Z-Wave Long Range communication for reliable automation.
Is the Zooz 700 Series compatible with Home Assistant?
Yes, it works with Home Assistant. The device is listed as compatible with SmartThings and Home Assistant. This makes it a practical choice for users building custom smart home ecosystems. It provides reliable on/off automation for your lighting circuits.
Can the Zooz 800 Series replace my existing wall switch directly?
Yes, it replaces your existing wall plate directly. You do not need to hide a relay inside the box. This switch supports flexible multi-way switching and fits easily into crowded electrical boxes. It is a straightforward upgrade for standard wall installations.

