What OS are you most interested in Android, iOS or Windows 10 Mobile? (And have you tried any in-store)?
What is your budget?
Do you want exclusive features limited to certain devices (ie. Biometric scanner, expandable storage, front-facing camera with high MP/quality)?
What screen size do you prefer (ie. a larger screen is 5" and higher)?
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Google don't manufacture their own smartphone, but that will change in the coming years.
"At the end of April, Google set up its own hardware division and appointed former Motorola president Rick Osterloh to run it. The idea was to bring the company’s various gadget projects under a single umbrella.
Now, The Telegraph’s sources say that Google is gearing up to design and manufacture a smartphone on its own – representing a major shift from its standard strategy of partnering with major handset makers like LG, Huawei and HTC to develop Nexus devices that showcase the Android platform."
Read more:
Google is reportedly designing its own Android phone this year