NB-IoT locks are digital locks that can be authenticate and unlock itself wirelessly.
NB-IoT is a communication method similar to the data network that we are using for our mobile phone. So this means that the lock can be remotely control over the cellular data network.
NB-IoT has a lower cellular cost compare to LTE-M, LTE network.
List of NB-IoT digital locks (Dated: Mar 2020)
- DigitalKeys, https://www.digitalkeys.io/nb-iot-smart-padlock
- Kalewa, https://www.iotone.com/hardware/kalewa-nb-iot-smart-lock/h83047
Difference bewteen Bluetooth & NB-IoT locks
| Lock’s Communication Technology | NB-IoT | Bluetooth |
| Wireless distance | 35km | Within metres |
| Communication fee | about $1/month (10mb) | Free, unlimited |
| Communication hacking | Difficult | Easier |
| Power consumption | Higher | Lower |
| Requires cellular network to work | Can work Offline | |
| Can opens lock remotely without a smart phone | Requires a Smart Phone with bluetooth |