The year 2022 is still far away, so there is no need to be very specific about the trends for smart gadgets. Instead, you could answer by listing the technology trends that are presently ongoing and which are going to evolve over the next few years. Smart devices like smart watches, smart glasses, smart light bulbs, etc. are still in the initial stages of being used. These smart devices will become more widespread in a few years and they are going to be smarter than they are now. The integration of artificial intelligence and other innovations will further improve the functionality of smart devices. For example, smart glasses that have been in use for a few years now may have object recognition, face recognition, gesture recognition, and other advanced features embedded in it, by the year 2022.