There are plenty of sensors in a smartwatch and one of the most common ones is PPG or Photoplethysmography. It works by shining a LED light into the skin and measuring the changes in blood flow with each heartbeat.

Smartwatches often use a combination of different sensors depending on the scenario to track steps and activities. Generally, it uses a combination of accelerometers to detect changes in motion such as steps taken, distance traveled and calories burned. GPS is used to track outdoor activities including running, walking, and cycling. It is also used to provide more accurate distance and speed data.

Most smartwatches after syncing with your phone are able to make calls and send texts by using the internet. Your smartwatch needs to be connected to your phone either through Bluetooth or through a mobile network. You need to have a dialer and message app on your smartwatch.

Yes! Smartwatches can play games. Both smartwatches that use either Android-based wear OS or Apple watch OS can run a handful of games. These are obviously limited due to the compact display of real estate. These games are fairly basic in nature and are mostly 2-D games.

There are plenty of sensors in a smartwatch and one of the most common ones is PPG or Photoplethysmography. It works by shining a LED light into the skin and measuring the changes in blood flow with each heartbeat.

Smartwatches often use a combination of different sensors depending on the scenario to track steps and activities. Generally, it uses a combination of accelerometers to detect changes in motion such as steps taken, distance traveled and calories burned. GPS is used to track outdoor activities including running, walking, and cycling. It is also used to provide more accurate distance and speed data.

Most smartwatches after syncing with your phone are able to make calls and send texts by using the internet. Your smartwatch needs to be connected to your phone either through Bluetooth or through a mobile network. You need to have a dialer and message app on your smartwatch.

Yes! Smartwatches can play games. Both smartwatches that use either Android-based wear OS or Apple watch OS can run a handful of games. These are obviously limited due to the compact display of real estate. These games are fairly basic in nature and are mostly 2-D games.