We’ve seen quite a few DIY 2G networks over the years, but the 4G field has ... some programmable SIM cards, and a few other bits and pieces like SIM card programmers and LTE-capable smartphones ...

eufy Security 4G LTE Cam S330, 4K Cellular Solar Security Cameras Wireless Outdoor, Pan and Tilt, 4G and Wi-Fi Duo-Mode, AI ...