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Heart Rate tracking for Fitness with the iPhone and Apple Watch

With newer fitness trackers and smartwatches, Heart Rate monitors have become a standard feature. Heart Rate trackers are great since they can help you get accurate stats and have a more efficient workout regime.

Why Measure Heart Rate?

There are two types of heart rate: Resting Heart Rate and Maximum Heart Rate. Resting heart rate is the measure of the heartbeats when the body is in a still situation – which infers the state when the body is totally rested. The normal resting heart rate is 60-80 pulsates every moment, except it’s lower for physically fit individuals. The normal resting heart rate additionally increments with age, and has likewise been strangely observed to be more when the body is snoozing, than in wakeful conditions. Maximum heart rate is the greatest number of heartbeats every moment, and can be ascertained through various formulae. While the most well-known one is [220 – (the age of the individual)].

It is ideal to be working out in 50-70% of the maximum Heart Rate for moderate intensity of physical activity. For a more intense exercise you can go upto 70-85% of your maximum Heart Rate.



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How it works?


The Apple Watch’s Heart Rate monitor tracks your pulse from the wrist. It is really handy since it can be easily track your Heart Rate during your run or even swim now.

Apple Watch uses green LED lights paired with light‑sensitive photodiodes to detect the amount of blood flowing through the wrist at any given moment. When your heart beats, the blood flow in the wrist — and the green light absorption — is greater. Between beats, it’s less. By flashing its LED lights hundreds of times per second, the Apple Watch can calculate the number of times the heart beats each minute — your heart rate. In addition, the heart rate sensor is designed to compensate for low signal levels by increasing both LED brightness and sampling rate.

It is interesting that even the iPhone is capable of Heart Rate measurements with 3rd party apps. These apps use a similar technique as the Apple Watch, detecting change in colour for every Heart Beat using the camera & flash.

You can sync your Heart Rate data from the Apple Watch and other wearables to the Health app. The new Health app in iOS 10 is a great place to see graphs and stats for your Heart Rate.



Instant – Automatically keep track of the time spent on your phone, while travelling, at places, while sleeping & on fitness activities.