Casio G-Shock Ga-110CS-4AJF Ironman Crazy Color VS NO.1 F6 Running Sport watch The well known Casio G-Shock, as we know, it is a Digital-Analog watch, while NO.1 F6, it is a sport smartwatch, a fitness tracker. Although they are not the same category, there are many things in common. First, the appearance. The design of NO.1 F6 is inspired by the G-Shock. Both of  them have a stylish sport style. The G-Shock Ga-110CS has a ‘crazy color combination’ red and gold, while NO.1 F6 it is the classic black and silver bezel. Both of them four large anti-skid buttons, while F6 has a touch key in the screen for better operation. The special Red button is exit button.  Second, the structure. GA-110CS-4A its case has powerful presence and shock resistant, anti-magnetic structure confirms its toughness. Shock Resistant, 200M Water Resistant, Anti-Magnetic Structure. How about the F6? Resin shell material, steel back cover, mixture frame, highly sealed, up to 50M water resistant, dust-proof, shockproof. GA -110CS-4A 55 x 51.2 x 16.9mm size, 72g Weight, Battery life approx. 2 years. NO.1 F6 122 x 96 x 36 x 19mm size, 52.5g Weight, Battery life 50 days of use, rechargeable battery. How about the functions? G-Shock GA-110CS-4A supports world time, light, date, week, alarm, 1/1000th Second Stopwatch with Speed Indicator, 12/24 Hour Formats. While NO.1 F6, the fitness tracker, it supports daily activity tracker, heart rate, pedometer, messages push, alarm, multi-sport-mode, etc. As mentioned, F6 supports vibration and sound reminder. And the OLED black-white screen display well under the