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Smartwatch the Best Companion for Your Smartphone
Smartwatches in general heavily depend on a primary mobile device. For example, the Apple Watch used to depend on iPhone. All Watch apps originally ran on the iPhone and then notifications or certain processing outputs were transmitted to the Apple Watch just to display them. The purpose of that approach was to save as much battery of the Apple Watch as possible. However, battery saving results were not that much. On the other hand, the mentioned approach resulted in slow response in the Apple Watch as it essentially waits for the iPhone to do the processing then send back the results to display which means a lot of delay.
Further check it here
Smartwatch the Best Companion for Your Smartphone
Smartwatches in general heavily depend on a primary mobile device. For example, the Apple Watch used to depend on iPhone. All Watch apps originally ran on the iPhone and then notifications or certain processing outputs were transmitted to the Apple Watch just to display them. The purpose of that approach was to save as much battery of the Apple Watch as possible. However, battery saving results were not that much. On the other hand, the mentioned approach resulted in slow response in the Apple Watch as it essentially waits for the iPhone to do the processing then send back the results to display which means a lot of delay.
Further check it here