Milesight has released the second generation UG63 devices which have main differences with the first generation:

ParameterUG63(Old)UG63 (New)
Photo
Hardware
AntennaInternal Antennas
External Antennas(LoRa, Cellular)
PoE PDSupported by defaultSupported by PoE Splitter (Optional)
Wi-FiN/A2.4GHz Wi-Fi
(AP mode for Device Configuration Only)
CellularN/A4G LTE CAT1 (Optional)
Power SupplyPoE or USB
PoE, USB or Terminal Block
Software
Firmware Version63.0.0.x64.0.0.x
LoRaWAN Embedded NSYes, support 20-50 devices
N/A
VPNSupportedN/A
Management PlatformCLI, SNMP, DeviceHub Regular Version, Milesight IoT CloudDeviceHub LNS Version, Milesight Development Platform


For more details please refer to attachment list.