Pulsometrs Polar A360

This waterproof fitness tracker is the first to have both a wrist-based heart rate monitor and Polar personalized training guidance, as well 24/7 activity tracking. It even has smartwatch features like smart notifications and a color touchscreen.Activity:24/7 Activity TrackingActivity GoalActive TimeSteps and DistanceActivity SummaryActivity BenefitInactivity AlertSleep Duration and QualityTrainingWrist-based heart rate measurementHeart rateMaximum heart rate (HRmax)Heart Rate zonesZonePointerSmart Calories - activity-based calorie calculationTraining Benefit - based on exercise intensity and durationSport profilesTraining historyDeviceWide-viewing angle full color TFT display with capacitive touchscreen -Screen resolution: 80 x 160 pixels (RGB)Screen size: 13mm x 27mmWristband thickness: 13.5 mmWristband width: 23.5 mmPolar proprietary optical heart rate module (2 green LEDs, 1 photodiode, analog front-end)Waterproof (WR30)Rechargeable 100 mAh battery - battery life up to 2 weeks with 24/7 activity tracking, including 1 hour of training per day (without smart notifications in use) micro USB cableUI languages: English, Spanish, Portuguese, French, Danish, Dutch, Swedish, Norwegian, German, Italian, Finnish, Polish, Russian, Chinese (simplified), JapaneseBluetooth SmartSmart NotificationsVibration alertsAlarmButton lockDate and weekday indicatorTime of day (12/24h)Firmware update via USB cablePolar Flow App and Polar Flow web serviceConnectivityEasy wireless sync via Bluetooth® Smart with the Polar Flow appMicro USB connector for charging and data sync with PC or Mac via Polar FlowSyncAvailable in diffferent sizes The A360 should sit behind your wrist bone, with the underside of the device fitting snugly against the back of your wrist. It should not be so tight it prevents blood circulation or feels uncomfortable:Small (S): 130–170 mmMedium (M): 155–200 mmLarge (L): 180–225 mm