The Lenovo-developed Googlebook "Sapphire" is an upcoming tablet device powered by the Kompanio Ultra 910.
While it was initially anticipated to mark the return of a first-party Google tablet, subsequent findings revealed it to be a Lenovo-manufactured device. Following its development progress and the official unveiling of the Googlebook lineup, it is now confirmed to launch as a Googlebook featuring the signature Glow Bar.
It has now come to light that the device will officially be named the "Lenovo Googlebook Duet m (13”, 11)."
In this article, we round up everything we know so far about the Googlebook "Sapphire"—aka the "Lenovo Googlebook Duet m (13", 11)."
Development History
Development on "Sapphire" kicked off in September 2025, built upon "Tanjiro"—a pre-production reference board for Chromebooks housing the MediaTek Kompanio Ultra 910 (MT8196).
Although the Lenovo Chromebook Plus Gen 10 (board name: Navi) had already launched with the exact same chipset, the key differentiator for Sapphire was its design: a dedicated tablet form factor rather than a traditional clamshell.
Early code commits pointed to demos for a full-color "Light Bar," which initially sparked hopes for a revival of Google-made hardware akin to the classic Chromebook Pixel.
However, since Lenovo had previously adopted light bars on its own Chromebooks, the actual manufacturer remained unconfirmed at the time. It wasn't until a commit regarding the OEM logo loaded on the boot screen surfaced that Sapphire was definitively linked to Lenovo.
Around this period, further commits hinted at several premium features, including support for a wirelessly charging USI stylus, the adoption of a 13-inch BOE display panel (NS130069-M00), and ambient light color temperature adjustments. There were also indications that the keyboard base might pack its own built-in battery.
By April 2026, commits showed the device hitting the "system lock for FW qual" milestone, meaning firmware specifications were finalized and development had shifted into the final testing phase.
Ultimately, when Google officially announced the Googlebook platform in May 2026—confirming the inclusion of the Glow Bar (light bar) and MediaTek's role as a launch chip supplier alongside Intel and Qualcomm—it cemented Sapphire's status as an upcoming Googlebook.
Latest Updates
We recently reported that a device with the model number "Duet 13M9611" surfaced on Lenovo's official website. Based on the company's historical naming conventions, this is almost certainly the Sapphire.
Furthermore, the site groups this model under the "Aluminium Premium" category, sharing the exact same classification as the Googlebook "Ruby" (model number: 15IPH12). This not only signals its identity as a Googlebook but also strongly suggests it will be positioned within the top-tier "AL Premium" segment of the Aluminium OS ecosystem.
In a related development, a new USI stylus—dubbed the "Lenovo Pen Pro for Googlebook"—recently passed through FCC certification, and it appears tailor-made for the Sapphire.
Following this, a Bluetooth SIG listing confirmed the device's official moniker: the "Lenovo Googlebook Duet m (13", 11)."
Expected Specifications
Based on development tracking and leaked registry details, here is a breakdown of what to expect under the hood of the "Sapphire":