what type of gyros are used in drones and smartphones? obviously not the basic mechanical ones. but which one?
Many of the inertial sensors we have made carrier boards for have probably been used in products like smartphones (for example, this article says the L3G4200D sensor was used in the iPhone 4).
It sounds like you might be looking for an orientation sensor to use for a project. You can find our selection of gyros and other MEMs orientation sensors on our site in the Accelerometers, Gyros, & Compasses category on our web site and our documentation for the sensors is on the product pages for them (for example, our AltIMU-10 v5 board). Also, we include additional resources that might be helpful for them on the “Resources” tab of the product pages.
-Nathan