This model is a simple model with functions that are useful for daily health management and workouts. - It's compactly designed to fit a delicate arm with a genderless design. - In terms of functionality the 3-axis acceleration sensor measures the number of steps taken per day and the pace of walking/running and the number of steps is displayed on the clock. - When you connect to a smartphone via Bluetooth? communication you can check your daily steps and calories burned using the dedicated app G-SHOCK Connected - In addition the exercise intensity is discriminated in 5 levels from the number of steps measured with a watch and the walking/running pace and the number of steps is displayed in a graph by exercise intensity supporting daily health management - This is GMA-B800-9AJR・Impact resistant structure ・20 ATM water resistant function ・Mobile link function (function interlocking by Bluetooth communication with compatible mobile phones) ・ Needle evacuation function (when the needle overlaps the liquid crystal display and is hard to see the needle can be temporarily retracted from the liquid crystal display) ・Step measurement function ・Step display range: 0 to 999999 steps ・Target achievement rate display (target step setting range: 1000 to 50000 steps 1000 steps unit) ・Step graph (steps per hour) 11 levels in 6 levels for 6 hours)・Step indicator display・Power saving function (when there is no movement for a certain period of time the sensor automatically goes to sleep mode to save power) ・Dual time (with time swap function with home time) ・Stopwatch (1/100 seconds (less than 1 hour) / 1 second (1 hour or more) 24 hours total with lap/split up to 200 measurement data memory (measurement month/day lap/split..