Generally speaking, as long as your hotspot supports the network frequencies in the country you're visiting, it will work. Your hotspot must not be network or SIM locked.
We have micro/mini SIMs and nano SIMs to suit all hotspots.
For the Orange Network in France (3G 900/2100MHz and 4G 800/2600Mhz), it should be ok.
Hotspots usually run on common frequencies like:
- Dual band 3G 850/2100
- Quad band 3G 850/900/1800/1900 Mhz.
- 800/2600Mhz 4G
They also usually support the technologies below.