As large AI models sweep across every industry, smartphones—the most ubiquitous smart devices—are undergoing a profound transformation: shifting from merely “passively responding to commands” to “proactively executing tasks.” Billed as the “world’s first AI agent smartphone,” the Nubia NaviX Ultra deeply integrates large models with hardware. It aims to break the boundaries of traditional smartphone interaction, delivering a smart experience where you can simply speak rather than manually operate the device. After spending significant time with the device, let’s find out if it can truly “do the work for you.”

I. Design and Hardware: Flagship-Grade Specs, Balancing Slimness with Premium Feel
The NaviX Ultra features a design combining a metal middle frame with a glass back. Despite housing a massive 7100mAh battery, the device remains slim at just 7.62mm and weighs 208g, maintaining an excellent in-hand feel. The front sports a 6.78-inch 1.5K LTPO flat display with an adaptive refresh rate of 1–144Hz; its ultra-narrow bezels (1.09mm) offer a crisp, immersive visual experience.
In terms of hardware, the device is powered by the 5th-generation Snapdragon 8 Elite processor (3nm process) and 16GB of RAM. Its performance sits in the industry’s top tier, easily handling high-load gaming and intensive multitasking. The 7100mAh “Nanhai” battery (featuring an energy density of 902Wh/L) supports 90W wired and 50W wireless fast charging, delivering rock-solid battery life that easily lasts a full day of heavy use.
II. Core Experience: AI Agent with True “Cross-App Execution” Capabilities
The NaviX Ultra’s core competitive edge lies in its “Doubao Mobile Assistant.” Its AI capabilities have evolved beyond traditional “chat and Q&A” functions to enable “cross-app task execution.”
- Ultimate Interaction Experience: Dedicated AI Button and Multimodal Wake-up
The side of the device features a dedicated orange AI button that integrates a fingerprint sensor. Long-pressing it instantly wakes the assistant, a single press opens the dialogue box, and a double-press launches a real-time video conversation. This design perfectly combines “wake-up” and “authentication” functions, ensuring both speed and security. In terms of voice interaction, it supports “wake-word-free conversation when held close to the mouth,” voice wake-up, and dialect recognition. It boasts extremely high recognition accuracy in noisy environments and supports barge-in (interrupting the AI while it speaks) and continuous dialogue, offering an interaction experience akin to talking to a real person. - Cross-app and task execution: True “AI doing the work for you”
This is the most impressive highlight of the NaviX Ultra. It is not limited to simple commands within a single app; instead, it uses natural language understanding to automatically execute complex tasks across multiple applications. For instance, a single command like “Book me a flight to Beijing for tomorrow morning, reserve a hotel near West Lake, and send a message to my wife” triggers the phone to automatically access ticketing, hotel booking, and WeChat apps. It sequentially handles searching, price comparison, ordering, and messaging—all while running silently in the background. It supports task queuing and priority insertion, ensuring no disruption to other phone operations. - Context-aware AI and memory capabilities
The device features “memory” capabilities, recording user preferences (such as preferred apps for hotel booking) and offering proactive recommendations. It supports features like “Image Generation from a Single Phrase” and “Voice-Guided Photography,” where AI assists with composition and one-tap editing, lowering the barrier to entry for photography. The voice recorder integrates with Feishu Minutes (Feishu Miaoji), supporting real-time transcription, translation, and meeting summary generation, which significantly boosts office productivity.
III. Imaging and System: Flagship hardware, AI-powered
In terms of imaging, the device is equipped with a flagship triple-camera setup: a 200MP main camera (with a large 1/1.4-inch sensor), a 50MP ultra-wide-angle lens, and a 64MP periscope telephoto lens. It supports 3x optical zoom and delivers excellent base image quality, with AI enhancements making color tuning and scene recognition smarter. At the system level, AI is deeply integrated with the underlying OS, allowing commands to be issued even from the lock screen—balancing convenience with privacy and security.
IV. Conclusion: A pioneering “AI Agent” smartphone
The Nubia NaviX Ultra is not a flawless, all-around perfect device. Its AI cross-app execution capabilities are still constrained by the extent to which third-party apps open their APIs, and compatibility with some niche apps requires further refinement. Additionally, risks regarding AI “hallucinations” and accidental operations persist, meaning some complex commands still require manual confirmation. Yet, there is no denying that it represents the evolutionary direction of mobile AI interaction, transforming the concept of “AI doing the work for you” into a tangible, real-world experience.
If you frequently find yourself bogged down by cumbersome cross-app operations on your phone, are eager to boost your productivity and enhance your daily life through AI, and are willing to pay a premium for cutting-edge AI experiences, then NaviX Ultra is definitely a flagship device worth trying out.