9. Nexus 5X
LG's Nexus phone builds on the Nexus heritage
OS: Android 6 | Screen size: 5.2-inch | Resolution: 1920 x 1080 | Memory: 2GB | Storage: 16GB/32GB | Battery: 2,700mAh | Rear camera: 12.3MP | Front camera: 5MP
Fans of Google's Nexus devices (which, frankly, should be all Android users) will be happy to know that Google has decided to bring back a Nexus handset with a smaller screen size.
While the Nexus 6P is a behemoth of specifications, Nexus partner LG has managed to cram the best bits of the bigger phone into a smaller body, without sacrificing all the things that make the 6P great.
It's only got 2GB of memory on board, which is disappointing given the 3GB standard for other Android flagships, but otherwise this phone is a prime example of what Android's mobile operating system can be.