- The extra hub(Ultraloq Bridge) is for U-Bolt/U-Bolt Pro and U-Bolt Z-Wave / U-Bolt Pro Z-Wave. There is a built-in WiFi chip in U-Bolt WiFi / U-Bolt Pro WiFi, no extra hub(Ultraloq Bridge) is required.
- Z-Wave Hub is required only for U-Bolt Z-Wave / U-Bolt Pro Z-Wave. If you don't want to use Z-Wave connection technology, you can buy an Ultraloq Bridge instead.
- The Door Sensor is only for U-Bolt WiFi / U-Bolt Pro WiFi and U-Bolt Z-Wave / U-Bolt Pro Z-Wave, which can detect your door's status if you had paired it correctly.
Currently, U-Bolt Z-Wave / U-Bolt Pro Z-Wave can work with Ring, SmartThings, and Hubitat.
| Model | Fingerprint | Bluetooth | WiFi | Z-wave | Door Sensor |
| U-Bolt | ✖ | ✔ | Ultraloq Bridge is required | ✖ | ✖ |
| U-Bolt Pro | ✔ | ✔ | Ultraloq Bridge is required | ✖ | ✖ |
| U-Bolt WiFi | ✖ | ✔ | Built-in WiFi chip integrated | ✖ | ✔ |
| U-Bolt Pro WiFi | ✔ | ✔ | Built-in WiFi chip integrated | ✖ | ✔ |
| U-Bolt Z-Wave | ✖ | ✔ | Ultraloq Bridge is required | Z-Wave Hub is required | ✔ |
| U-Bolt Pro Z-Wave | ✔ | ✔ | Ultraloq Bridge is required | Z-Wave Hub is required | ✔ |