Unfortunately, there are no smartphones with built-in LoRa modem. However, there are several LoRaWAN trackers on the market that can scan for Bluetooth Beacons in the neighborhood, and transmit the result of the scan (a list of beacon IDs) together withe the location coordinates to a central application server via LoRaWAN. These devices can be considered as "a kind of" BLE to LoRa gateways too. Some of these devices are wearables.
An example of such warable is: the Abeeway Smart Badge. If you dont need a wearable device, you can also check the Abeeway Compact Tracker that offers a very long (several years) battery life time.
With such devices, your warehouse solution would work in the following way:
- Instead of bar codes, you will equip your assets with BLE beacons
(You can find hundreds of cheap beacons on the Internet (e.g.: at https://www.aliexpress.com/)
- You use a special LoRaWAN end device (tracker) to detect the proximity of the beacons and send their IDs (and optionally their locations) via LoRaWAN to the backend.