These are the latest additions to the G-SQUAD lineup of sports watches from G-SHOCK. The bands of these models have reflectors and other design features that make nighttime activities more fashionable and enjoyable. These watches link with the G-SHOCK Connected phone app to provide access to a number of functions that enhance workouts. Daily health and fitness support functions include a 3-axis accelerometer that keeps track of step counts, a Multi-Timer that lets you create up to 20 timer combinations of five timers each, memory for up to 200 lap records, and more. G-SHOCK Connected also makes it possible to maintain step count logs with five exercise intensity levels, calculate the calories you burn, specify a daily step target, create timer combinations and send them to the watch, store stopwatch measurement data, view data, and more. All of this combines to help you plan and record your workouts, making them more effective and enjoyable. Back wings on the inside of the band where it connects to the case, a new band ring shape that prevents sliding, and more band holes to allow better tightness adjustment, all add up to a more comfortable fit. You can even make fine adjustments to the band size. SPECIFICATIONS: Case / Bezel Material: Resin Resin Band Neobrite Shock Resistant Mineral Glass 200m Water Resistant Double LED light with Super Illuminator and Afterglow Mobile Link (Wireless linking using Bluetooth®) Step Count using a 3-axis acceleration sensor: 0 to 999,999 step count display range Step Goal Progress Display (step count goal setting range: 1,000 to 50,000, 1,000-step increments) Step Count Graph: Hourly step count for the past 11 hours on a 6-level graph Step indicator Power Saving: Auto sensor sleep state entry after fixed period of non-activity Dual Time (Home time swapping) 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Recorded data: Up to 200 records (measurement start month, date, lap/split times) Target Time alarm up to 10 Target Time settings Countdown Timer Hand Shift Feature (Hands move out of the way to provide an unobstructed view of digital display contents.) 5 Daily Alarms Full Auto-Calendar (to year 2099) 12/24-hour format Approx. Battery Life: 2 years on CR2016