Pros:

• Proven and tested stable installation to some well-known smartwatches from brands like Asus.
• Great operating system for smartwatches which is an open-source one, and the good thing also is the developers of this operating systems allows the users the maximum control of their smartwatches.
• Purposely built to have multifunctional usage like being an alarm clock or an application for weather forecast.

Cons:

• Nothing for this amazing product hunt.