Question: what is the difference between nexus 6 and 6p?
Answer: Both the Nexus 6 and the Nexus 6P run Android 6.0 Marshmallow, with the same default apps and the same default features. The only difference is that the Nexus 6P has a fingerprint scanner, so the software to use it is present. But there's more to the story when you're actually using these phones.