Amazon Fire Stick works very well on mobile hotspot(3G/4G). The only drawback is data consumption at high-speed. It's better to use the stick on WiFi!
How do I connect my Firestick to my mobile hotspot?
- Set up your smartphone as a wireless hotspot.
- Run Fire TV Stick.
- Select Settings from the Fire TV Stick menu.
- Select Network option.
- Select the wireless hotspot of your cellphone.
- Enter your password and select Connect.