Casio F108WH Illuminator vs Casio G-Shock GA-2100-1A1ER

Buy the F108W if you want a light, simple digital watch with a big, easy-to-read display and Casio's long battery life. Buy the GA-2100 if you need real water resistance, a tougher case and an analog-digital face that looks good outside the gym. The F108W is basic resin with a plastic crystal; the GA-2100 adds carbon core guard construction, 200m water resistance and mineral glass. Owners rate both well, though the GA-2100 has far fewer ratings here.

• Choose the Casio F108W if you want a cheap-feeling but reliable everyday digital with a bright backlight and a display you can read at a glance.
• Choose the Casio G-Shock GA-2100 if you swim, work outdoors or want a slim analog-digital G-Shock that takes knocks.