Yes but that's not first party, voids the warranty (messing with bootloaders, yuck), in my experience has tons of problems with propietary drivers, is still Android (which is an awful OS/ecosystem for anything that isn't a phone), eventually stops being updated (as many of my not-so-old phones can attest)...
RPi and Android phones might overlap for some applications but I see them as very distinct devices.
- It runs Linux as a first-party-sanctioned OS. Great ecosystem for tinkering. Not locked in to the whims of the manufacturer OS updates.
- GPIO pins.
- No built-in screen (which I guess draws less power).
- HDMI, USB and Ethernet ports.