SIM808 module is a complete Quad-Band GSM/GPRS module which combines GPS technology for satellite navigation.

The SIM808 GPS GSM GPRS Module is GSM and GPS two in one function module. It supports GSM/GPRS Quad-Band network. It combines GPS technology for satellite navigation. It supports Quad-band 850/900/1800/1900MHz. It is compatible with various flight controller modules that provide GPS computer test software. 

The GY-GPS6MV1 has a popular name called GY-GPS6MV1 NEO-6M GPS Module. It is a module with ceramic designed antenna and built-in EEPROM for saving the configuration data when powered off. It has super signal. It has baud rate of  9600 bps. It is compatible with various flight controller modules that provide GPS computer test software.