It’s not Open Source / Free Software and it’s also based on Blink, like all Chromium browsers.
Not really sure about its selling points, but supporting Google’s grip on web standards seems to clash with the statement of openness in this advertisement.
The numbers are totally off though.
A current-gen iPhone SoC (or CPU, the sources are not very clear), nhas about 19 billion transistors. That does not include transistors from flash memory. Following the numbers it does also not include RAM.
IPhone transistor count becomes completely irrelevant when you start looking at flash chips. Even a 16GB flash drive can contain 64 billion transistors.