While the Chrome OS Yoga Book has been confirmed by
Lenovo already, a 12.2-inch Yoga Book has been listed by Amazon without any
proper official introduction. It's not available yet, but it does have a price: US$ 299.99 running Android.
That's oddly cheaper than what the 10-inch Yoga Book
costs with Google's OS, namely US$ 499. You don't see that every day, as usually
bigger laptops or 2-in-1s are more expensive than their smaller siblings, if
just by a tad.
However, the price starts to make more sense when
considering the specs. The 12.2-inch Yoga Book is lower-end than the 10.2-inch
device. The yet-unannounced 2-in-1 comes with 1,280x800 resolution and just 2GB
of RAM and 32GB of storage (expandable via microSD). It's still powered by an
Intel Atom x5 though, and it apparently sports a 10,500 mAh battery that will
give it 15 hours of stamina. It runs Android 6.0.1 Marshmallow. It will be
offered in Gunmetal Grey and Rose Gold. It's 10.9 mm thin and weighs 1.06 kg.