Charging On the S928 a magnetic docking port which attaches itself to the rear of the watch. It attaches itself securely on two pins and the watch are used to control the watch. The dock of s928 sports watch powered by a micro cable.

1 crucial feature of the S928 that could attract many is its GPS tracking feature.

The S928 utilizes GPS to accurately show your rate and distance traveled to you. It is also capable of shifting them and then recording GPS tracks.

The accuracy of the GPS chip is good and speed readings Come within 1km/h of my Bryton 310 and Android smartphone operating Strava. It’s more of a gimmick than it is a feature for exercise usage Even though the ability of the S928 seems useful. This is because the watch appears capable of recording up to approximately 40 minutes to 1 hour of GPS information before it stops.

s928 sports watch

If you are just exercising for Half an Hour or so but That is fine Don’t expect the abundance of information which it is possible to get from programs such as Strava. This issue coupled with all the flaws in the corresponding HPlus Watch program creates the GPS feature of this S928 restricted in its usefulness. I still have not figured out why the watch doesn’t record GPS tracks beyond a particular duration.

Heart Rate Monitor

Like the Rest of the sub-$100 fitness trackers with heart rate monitors, The S928 does not display your heart rate in real time. From”real time” I suggest that the refresh period for every heart rate reading is about 2-3 seconds. The S928 refresh speed is about a few minutes.

Will be better off using heart rate monitors that measure your HR using ECG belts which give refresh rates of 2 to 3 seconds. Some product pages of sub-$100 fitness trackers which are worn on the wrist claim to get heart rate sensors which use ECG to measure however this is not accurate and is deceiving.

ECG stands for Electrocardiogram and is a method of measuring Heart rate using sensitive electrodes that are placed on the torso region. Sport gadgets that monitor heart rate come with ECG straps which transmit HR readings via ANT or Bluetooth +.

The heart rate sensor on The S928 is situated at the back of this watch.

Are not capable of Picking up the faint pulses created by the heart. Rather, they make use of highly sensitive sensors that detect changes in colour or the skin tone. When your heart contracts to pump blood throughout the entire body, a higher quantity of blood flows through the capillaries underneath the skin thus altering the skin tone . Those changes could be detected by sensors on fitness trackers, Though not obvious to the naked eye.

ECG straps are generally more accurate than optical sensors worn on wrists.

There are pros and cons to both methods of measuring heart rate (ECG and optical detector ) but I won’t talk about them in this review because it will be quite protracted.

The S928 does a decent job at measuring your heart rate Since it is worn snugly on your wrist. The gap in between your skin and the sensor may result in inaccurate readings or no readings at all if it’s not comfortable enough.

Considering that the S928 shows heart rate at periods of several Minutes, it’s not suitable for athletes looking for a device to track time for their HR. It is good enough for customers that wish to track their overall heart rate or are simply curious to understand they are exercising.

For customers with heart problems who are looking for an HR track That can help them exercise within a HR range that is safe, I would not recommend the S928. For users, obtaining an ECG belt would be your better choice. This is as it is likely to dangerously strain the cardiovascular system with rather higher intensity exercises inside only 1 or two minutes. The S928 warns you that you are way above your target HR zone, you may have been in that zone for a minute or two which can result in issues when you have a vulnerable or weak heart.