What are the characteristics of the new Casio PRO TREK outdoor sports watches PRW-6600Y series and PRG-650? Which is better?

PRW-6600Y and PRG-650Y- 1 are the new series of Casio PRO TREK outdoor sports watches (PRW-6600Y is the new model of 20 18), both of which are tailored for people who are keen on original ecological adventure travel and hunting hobbies. All are equipped with the third generation of three sensors (azimuth, pressure/altitude, temperature). The dial is designed with large Arabic numerals and three-dimensional scales, the hands and scales are coated with light storage materials, and double LED lighting makes it easy to read the time and various functional modes at any time even in the dark. The scales of PRW-6600 are all Arabic numerals, while PRG-650 series are even Arabic numerals. Functionally, PRW-6600Y series is equipped with six radio wave and solar energy systems to ensure accurate time. PRG-650 series is not equipped with six radio waves. These two watches have their own characteristics and can be selected according to their own needs (for example, PRG-650 may be more cost-effective in some areas that are not covered by radio waves).