J-Style heart rate

记录全天活动状态，可根据喜好制定运动计划。智能来电提醒，随时捕获手机信息通知你。随时查看历史数据，了解过往运动信息。随时检测心率数据 Record day active exercise program can be developed according to your preference. Smart calls to remind, capture phone message to inform you. View historical data at any time, to understand the past motion information. Ready to detect heart rate data