HP announced new OmniBook PCs on September 4, 2026, confirming the HP OmniBook Ultra 16 and HP OmniBook X 14 as its first laptops built on NVIDIA's RTX Spark platform, alongside new details on an upcoming OmniDesk. The company says the goal is to help build what it's calling the next generation of AI experiences on Windows: personal agents, local AI processing, and creative workflows running on the device itself rather than in the cloud.
The announcement formalizes hardware HP first previewed at Computex in June. What's new this time is a fuller spec sheet, including battery life, display, and thermal design details for both laptops. What's still missing is pricing. HP says both machines arrive this fall, with cost to be announced closer to launch.
What HP Actually Announced
On September 4, 2026, HP Inc. confirmed the HP OmniBook Ultra 16 and HP OmniBook X 14, its first laptops powered by NVIDIA RTX Spark, according to HP's press release. The company also shared new details on an upcoming HP OmniDesk built on the same platform, though it said fuller specs and pricing for that device will come closer to its own launch.
Both laptops were first previewed at Computex in June, when HP and NVIDIA introduced RTX Spark as a combined chip platform pairing a Blackwell based GPU with an Arm based Grace CPU, according to Smartprix's coverage of that event, which cited up to 6,144 GPU cores and a 20-core CPU as platform-level NVIDIA specifications, not figures specific to HP's configuration.
On the OmniBook Ultra 16, HP's own release lists configurations with up to 128GB of unified memory and up to 1 petaflop of FP4 AI performance, a 16-inch 3K OLED display with VESA DisplayHDR True Black 1000 certification, a 99 Wh battery rated for up to 17 hours, and fast charging to 50% in about 30 minutes. The OmniBook X 14 gets a premium OLED display with the same HDR certification, up to 15 hours of rated battery life, and a 140W USB-C GaN charger with the same 30 minute fast charge claim. Neither device's memory or AI performance ceiling was specified for the X 14 in HP's release.
HP is also calling both machines the thinnest laptops on the RTX Spark platform, citing a rear chassis height of 15.73mm on the Ultra 16 and 13.53mm on the X 14. That claim comes from HP's own comparison against other Windows on Arm notebooks with a thermal design power above 45W, measured as of June 2026, not an independent third party measurement.
Why It Matters
I've sat through enough of these AI PC launches to notice when a company is confident enough to hand over real numbers and when it's still hedging. HP gave real battery, display, and memory figures this time, which is more than it had at the Computex tease in June. It's still holding back on price, three months after first showing these machines off, which tells me HP and NVIDIA are still working out where RTX Spark systems land against Qualcomm's Snapdragon X and Intel's Panther Lake based AI PCs on cost, not just capability.
The bigger story here isn't really about HP. It's about NVIDIA using OEM partners to push its chip design into consumer laptops for the first time, the same kind of expansion beyond data center silicon we've tracked in Nvidia's chip investment in MediaTek. A thin laptop that can run local AI models without a cloud connection is a genuinely different pitch than the last two years of "AI PC" branding, which mostly meant a new chip badge on the same chassis. Whether RTX Spark laptops actually deliver sustained performance in a 13 to 16mm chassis is the real test, and that's not something a press release can confirm.
What to Watch
Watch for pricing, which HP says will come closer to the fall launch window, and for whether that price lands closer to premium Intel Evo laptops or undercuts them to compete with Qualcomm's Arm based machines. Watch for independent battery and thermal testing once review units ship, since HP's 17 hour and 15 hour figures come from its own video playback test, not mixed real world use. And watch whether the OmniDesk, still short on public specs, ends up positioned as a cheaper entry point into RTX Spark or a higher end workstation alternative.
Key Takeaways
- HP confirmed the OmniBook Ultra 16 and OmniBook X 14 on September 4, 2026, as its first laptops built on NVIDIA's RTX Spark platform, plus new details on an upcoming OmniDesk.
- HP's own specs list up to 128GB of unified memory and 1 petaflop of FP4 AI performance for the Ultra 16, a 99 Wh battery rated for 17 hours, and a 15 hour rating for the X 14.
- HP is calling both laptops the thinnest on the RTX Spark platform, based on its own internal comparison as of June 2026, not independent testing.
- Pricing for all three devices, including the OmniDesk, has not been announced; HP says all three arrive this fall.
FAQ
What is an HP OmniBook?
OmniBook is HP's line of premium Windows laptops aimed at creators, developers, and everyday productivity users. The newest additions, the OmniBook Ultra 16 and OmniBook X 14 announced September 4, 2026, are the first in the line built on NVIDIA's RTX Spark chip platform, adding local AI processing and agent features to HP's existing OmniBook design language.
Is an OmniBook a Chromebook?
No. OmniBook is HP's Windows laptop line, not a Chromebook. HP's OmniBook Ultra 16 and OmniBook X 14 run Windows and are built around NVIDIA's RTX Spark platform, which HP's own release describes as designed for Windows PC experiences specifically.
Does the HP OmniBook come with a pen?
HP's September 4, 2026 announcement for the OmniBook Ultra 16 and OmniBook X 14 does not mention a stylus or pen as an included accessory or feature. If that changes, it would likely appear in the fuller spec sheet HP has said it will share closer to availability.
How do I turn on OmniBook?
HP's September 4 announcement covers upcoming OmniBook models that haven't shipped yet, so there's no setup guidance for these specific devices yet. For existing HP OmniBook laptops already in market, the power button is typically located on the keyboard deck or top edge of the chassis; check the specific model's HP support page for exact placement.
