During the exercise of the numerical ring type to check out this one and the pulse monitor. You start who may have great cardio exercise such as walking. [Extra Long] · Just On The Fingers And Allows You To Measure Your Heart Rate Data measurement, ring type charger. Handy and easy, no complex operation needed, during exercise to check each of data on the go. · Small and stylish, wear if you do not care about most light weight (G). · Temperature measurement from outside and one button, pulse meter, burn, calorie measurement, the switching of the watch. Pulse Meter, measuring range: 30 ~ 250bpm. Approximately 5 seconds per switches to the latest display. Exceed Your Pulse of your target zone setting you can set upper and lower sixth period, its functionality and alarm and let us know. Just put the finger and pulse to the measurement. No need to alarm sound and let us know the battery capacity. For slender fingers get exclusive with a rubber pad.