Now instant messaging software can basically use voice input, and can even change the input text into voice. However, technology is advanced. According to a report by foreign media Android Police, Facebook assistant will allow some wearable devices to send text messages through voice, which will help meta products such as Whatsapp develop in this regard.
However, smart glasses are nothing new. I think the most practical thing is navigation. Turning at that street intersection and making U-turns are the most practical. Of course, this kind of people sending messages may also have a certain effect on products such as Whatsapp API. After all, if there are more wearable devices supporting whatsapp, there will be more opportunities to explore more business opportunities.