Android 16-Based Nothing OS 4.0: A Complete Overview.

Nothing has finally and officially rolled out the Nothing OS 4.0, its next major software update based on Android 16. This new version, nicknamed Flow, brings a modern design, smoother performance, and deeper AI-powered features that make the user experience faster and more personalized. This update started rolling out in November 2025, which began with the flagship Nothing Phone (3), and will expand to other devices in phases. Here is a complete and detailed breakdown of what Nothing OS 4.0 offers.

Android 16 update

Nothing OS 4.0 introduces a refined and cleaner visual style. Where icons have been polished, animations feel smoother, and transitions are more natural. The brand’s signature minimalist design is still present but now feels more mature and consistent. A new lock-screen layout and improved widget animations give the interface a premium feel. The new Extra Dark Mode also reduces eye strain and improves readability at night.

Smarter AI-powered Experience

One of the biggest highlights of Nothing OS 4.0 is its focus on AI. The company has added smarter AI Widgets, which users can generate simply by describing what they want. For example, you can create a custom note widget, a weather card, or a quick tool without digging into menus.

The update also introduces an improved AI Usage Dashboard, which gives insights into app activity, battery behavior, and digital habits. Nothing’s Essential Apps have also gained new AI tools, making everyday tasks faster and more intuitive.

Nothing OS 4.0 UI improvements

With Android 16 at its core, Nothing OS 4.0 offers a more powerful multitasking experience. Users can now run two floating apps at once, making it easier to chat, browse, or watch videos simultaneously. App switching feels quicker, and system responsiveness has received noticeable improvements. The update optimizes RAM management and reduces background lag, resulting in a smoother and more stable performance across apps and system functions.

Nothing Glyph Interface update

The iconic Glyph Interface is getting new abilities in Nothing OS 4.0. The update introduces Glyph Live Updates, which show real-time information through the LED pattern on the back of the phone. Whether it’s a countdown timer, delivery tracking, or a ride arrival update, the Glyph lights now provide more meaningful notifications than before. This makes the Glyph Interface more than just a design element — it becomes a functional tool for quick, glanceable updates.

Better Camera and Gallery Experience

Nothing OS 4.0 also brings improvements to the camera system through the TrueLens Engine. Colors are more accurate, low-light performance is better, and overall image processing feels more natural. The Gallery app has been updated with faster loading, new editing tools, and improved organization.

Rollout and Compatibility

The update is currently rolling out to Phone (3) and will gradually reach other models like Phone (2), Phone (2a), and CMF devices. The company plans a global rollout, but timelines may vary depending on region and device variant.

Final Thoughts

Nothing OS 4.0 marks a major step forward for the brand. With its new AI features, smoother animations, upgraded Glyph functionality, and performance boosts from Android 16, this update delivers a cleaner, smarter, and more enjoyable experience. For Nothing users, this is one of the most meaningful updates yet — combining speed, style, and intelligence in a single package.