Review on 📡 Raspberry Pi GSM/GPRS/GNSS Bluetooth HAT Module SMS GPS UART SIM868 Based, Compatible with Raspberry Pi 4B/3B/3B+/2B/Zero/Zero W, Supports Phone Calls, Speaker, and Global Positioning System Data Transfer - by XYGStudy by Chris Pacino

I like the small size, good performance and good antennas included. I spent extra time getting the GPS to work while the cellular data was active, and after the GPS turned on, the cellular data stopped working. What the documentation doesn't say: You can't use the typical gps on command and the nmea search command. Instead, use the command AT+SGNSCMD=1.0 and wait for a GPS frame. See the simcom help manual for more information. You can get them from waveshare (dot com).