Mainly, If we consider the visual there just not much of a difference between Oreo and Nougat it's because the Oreo has got a lot of changes under it's
hood like the battery life improvements, performance, etc..
Not exact matches
You get everything you'd expect from a 2017 flagship,
like the Qualcomm Snapdragon 835 under the
hood, backed by 6 GB of RAM, and a large 3,930 mAh
battery that provides an impressive
battery life.
Under the
hood, the phone is powered by a big 3,800 mAh
battery so with a chipset
like Snapdragon 660, we can easily expect 2 days of
battery life on normal usage, similar to what we have seen with the Moto Z Play of last year.