Golioth works best with devices that directly connect to the internet including Cellular, WiFi and Ethernet, or mesh networking enabled devices like Thread. Managing and streaming data from devices not directly connected to the internet (like Bluetooth devices) can be done via an internet gateway. Golioth continues to add support for additional connectivity types as the market demands.
For questions about communication protocols see question: Which protocols can I use to connect my devices to Golioth?