Dimensions (L × W × H). More information about Dimensions (L × W × H). 52.3 × 49.3 × 15.2 mm. Weight. More information about Weight. 57 g. Case and Bezel Material. Bio-based carbon/Bio-based resin. Band Material. Bio-based resin band. Construction. Shock Resistant. Water Resistance. Water resistance rated to 20 bar. Time Adjustment. Bluetooth: Connects to a smartphone to automatically adjust the time. Power and Battery Life. Tough Solar (solar-powered). Sensor Function. Step count measurement: Step count display range: 0 to 999.999 steps. Step goal progress display (Step count target setting range: 1.000 to 50.000, in increments of 1.000 steps). Step reminder (Informs you when your step count is too low, via display and beep). Step indicator. Smartphone Link Features / App Connectivity. Smartphone Link function. Mobile Link (Wireless linking with Bluetooth®). Apps. CASIO WATCHES. App connectivity function. Auto time adjustment. Easy watch setting. World time of approx. 300 cities. Life Log data management. App information. Time and place. Phone finder. Exterior. Glass. Mineral Glass. Compatible band size. 145 to 215 mm. Others. Neobrite. Watch Functions. World Time. World time. 38 time zones (55 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping. Stopwatch. 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). Measuring unit:1/100 second (for the first 60 minutes). 1 second (after 60 minutes). Measuring modes:Elapsed time, lap time, split time. Timer. Countdown timer. Measuring unit: 1 second. Countdown range:24 hours. Countdown start time setting range:1 minute to 24 hours (1-second increments). Alarm/hourly time signal. 5 daily alarms. Hourly time signal. Illumination. Double LED light. LED light for the face (Full auto LED light, selectable illumination duration , afterglow). LED backlight for the digital display (Full auto LED light, selectable illumination duration , afterglow). Light color. LED:white. Calendar. Full auto-calendar (up to year 2099). Mute function. Button operation tone on or off. Power saving function. Power saving (The display goes blank to save power when the watch is left in the dark). Battery display/alert. Battery level indicator. Run time. Approximate battery operating time:5 months on rechargeable battery (period of operation with normal use without exposure to light after charging). 26 months on rechargeable battery (period of operation when stored in total darkness with the power saving function enabled after full charge). Accuracy. Accuracy: ±15 seconds per month (without Mobile Link function). Other Options. Hand shift function (Hands move out of the way to provide an uncluttered view of digital display contents). 12/24-hour format. Regular timekeeping:Analog:2 hands (Hour and minute ). Digital:Hour, minutes, seconds, pm, month, date, day of the week. Day display (Days of the week can be selected in six languages)