Googlebook "Ruby" Development Update: Everything We Know About the Panther Lake-Powered 'Fatcat' Series

The Googlebook "Ruby" is currently in development by Lenovo as part of the "Fatcat" series, which will feature Intel’s Panther Lake processors. Previous code commits regarding the boot screen logo revealed it to be a Lenovo device, and its existence has since been corroborated by Geekbench benchmark scores and Lenovo's official website.

In this article, we are rounding up everything we know so far about the Intel Core Ultra Series 3 (Panther Lake)-powered Googlebook "Ruby."

The Development Story So Far

Development on the "Ruby" board began in October 2025. Early commits indicated that it would be a large, 15- to 16-inch clamshell model equipped with a dedicated numeric keypad.

Subsequent code additions—specifically details regarding the battery, the engineers assigned to it, and commits related to the Ruby boot screen logo—ultimately identified it as a Lenovo device. Furthermore, references to a "forcepad / fpad" have been discovered, suggesting that "Ruby" will feature a force-touch, haptic feedback trackpad.

Lenovo Googlebook Ruby Force Pad

Initially, there was speculation that the device might be a new Chromebook Plus model. However, by February, ties to Android (Aluminium OS) and prototype benchmarks had already surfaced. Following the official unveiling of the Googlebook in May 2026, it became a certainty that this device will officially launch under the Googlebook moniker.

More recently, the "Lenovo GB 15IPH12"—widely believed to be Lenovo's Googlebook "Ruby"—was spotted in both the TCO Certified product database and on Geekbench. This same model number was also verified on Lenovo's official website, where it was listed as the "Aluminium Premium - Lenovo 15IPH12."

Aluminium Premium Lenovo Googlebook Duet 13 M9611

This confirms beyond a doubt that the "Lenovo 15IPH12" is indeed a Googlebook. Given how perfectly it aligns with the ongoing development timeline, it is safe to conclude that this model and "Ruby" are one and the same.

Expected Specs and Benchmarks

Drawing from development codes, leaked benchmarks, and product databases like TCO Certified, here is the anticipated spec sheet for the Ruby (15IPH12):

Feature	Specification
Form Factor	Clamshell
Display	15.3-inch, 2,880 x 1,800, Touch-enabled
CPU	Intel Core Ultra 5 325
RAM	16GB LPDDR5X
Internal Storage	NVMe Gen 4 SSD
External Storage	Unconfirmed
Ports	2x USB-C (USB4), 1x USB-A, 1x HDMI
Front Camera	1080p
Connectivity	Wi-Fi 7, Bluetooth
Battery	Up to 65W fast charging
Other Features	Haptic touchpad, Fingerprint sensor, Keyboard backlight

The TCO database sheds light on the display, confirming a 15.3-inch screen with a 16:10 aspect ratio and a sharp 2,880 x 1,800 resolution. While it remains unconfirmed whether the deck will include a dedicated numeric keypad, it is highly plausible given that other Chromebooks in this size class typically feature one.

On the performance front, multiple Geekbench listings point to an Intel Core Ultra 5 325 paired with 16GB of RAM, running Android 17. The benchmark scores are solid, averaging around 2,445 for single-core and 9,619 for multi-core performance.

Beyond the silicon, the Ruby is expected to pack a versatile I/O selection, including two USB4-compatible Type-C ports, a legacy USB-A port, and an HDMI output. Rounding out the premium feature set are a fingerprint sensor and an optional backlit keyboard.

The Bottom Line

Between the boot screen logo commits and Lenovo’s own website listing it as the "Aluminium Premium - Lenovo 15IPH12," there is zero doubt: the Ruby is an upcoming Lenovo Googlebook.

Boasting premium hardware like a haptic touchpad, the Ruby is shaping up to be a top-tier model in the inaugural lineup of Googlebooks, which is expected to launch in the fall of 2026. While a few granular details—such as exact storage capacities—remain under wraps, the overall picture is incredibly promising.

Interestingly, the Ruby isn't the only Lenovo device on the horizon. Another Lenovo Googlebook, codenamed "Sapphire," is widely expected to debut alongside it. Recent leaks have already begun to paint a picture of that device as well, pointing to a "Duet 13M9611" model number and support for a dedicated stylus.