Nothing OS 4.0: Full Review, Features, Performance & Update Details (2025)
Nothing OS 4.0 is the latest version of Nothing’s custom Android skin, designed for the Nothing Phone series. With every update, Nothing tries to deliver a clean, minimal, fast, and visually unique experience. The new Nothing OS 4.0 takes this idea even further with upgraded animations, better performance, more customization, and improved battery optimization. For Indian users, this update brings noticeable improvements that make the phone feel smoother and more premium compared to previous versions.
Nothing OS has always focused on simplicity and speed instead of heavy features. Version 4.0 continues this philosophy but adds more polish. From faster app switching to smoother gestures and upgraded widgets, the overall experience feels more refined. Users of the Nothing Phone (1), Phone (2), and Phone (2a) have reported performance improvements, especially in gaming and multitasking.
What’s New in Nothing OS 4.0?
Nothing OS 4.0 introduces multiple upgrades that improve UI smoothness and device stability. This includes redesigned animations, quicker app launches, enhanced haptic feedback, and better RAM management. One of the standout improvements is the updated Quick Settings panel, which now looks cleaner and responds instantly to touch. The update also brings more lock screen customization, improved Always-On Display options, and updated widgets.
Nothing has added new Glyph features that make the LED system more functional. Users can now set advanced alerts, timer patterns, and personalized glyph effects. Wallpapers and themes have also been refreshed for a more modern look. For users in India, the update includes region-based network optimizations to improve 4G/5G stability on major carriers like Jio, Airtel, and Vi.
Performance Improvements
Compared to previous versions, Nothing OS 4.0 feels significantly smoother. Scrolling, switching apps, and loading tiles in Quick Settings all feel faster. Background app management has been improved so that apps stay active longer without killing processes unnecessarily. Gaming performance also gets better with reduced frame drops in titles like BGMI, Call of Duty Mobile, and Free Fire.
Battery life is another area where users will notice improvement. With optimized power management, phones running Nothing OS 4.0 deliver better screen-on time. This is useful for daily heavy users, especially those who use their devices for work, gaming, and content consumption. Charging speed and thermal control have also been fine-tuned to reduce heating issues.
New Customization Features
Customization has always been a strong part of Nothing OS, and version 4.0 gives users even more freedom. The new lock screen supports multiple clock styles, widget placement, and custom animations. Font styles, icon shapes, and theme colors have also been extended for deeper personalization.
Nothing has also added new options for Always-On Display with better brightness control and adaptive dimming. Glyph customization is more advanced now, letting users create notification patterns for apps, calls, and alarms. These changes make the device feel more personal while still maintaining the signature minimalist style that Nothing is known for.
Improved Camera Performance
Nothing OS 4.0 includes camera optimizations for better image processing. Photos have improved dynamic range, sharper details, and more natural colors. Low-light performance also benefits from enhanced night mode tuning. For video creators in India, the update offers more stable recording thanks to improved stabilization.
Portrait mode edge detection has become more accurate, reducing blurring around subjects. The camera app UI has been refreshed for better accessibility and faster switching between modes.
Security & Stability Upgrades
The update comes with a newer Android security patch, ensuring better protection from threats. Nothing OS 4.0 also includes sandboxing improvements, app permission tightening, and more secure data handling. System stability is noticeably better, with fewer freezes and crashes reported by users.
For business professionals and students, these enhancements make Nothing phones more reliable for daily use, whether it's online banking, UPI apps, or work tools like Gmail and Google Drive.
Supported Devices
Nothing OS 4.0 is designed for:
Nothing Phone (1)
Nothing Phone (2)
Nothing Phone (2a)
Older models receive slightly fewer features, but most core upgrades like performance, camera tuning, and customization still apply.
Should You Update to Nothing OS 4.0?
If you prefer smooth performance, clean design, and faster animations, then Nothing OS 4.0 is definitely worth installing. The update is stable, visually appealing, and offers meaningful improvements without unnecessary bloat. Whether you're a gamer, creator, student, or working professional, the new update makes the phone feel fresh and more efficient.
Conclusion
Nothing OS 4.0 focuses on refining the user experience rather than adding too many flashy features. It brings smoother animations, stronger performance, better battery management, expanded customization, and improved camera quality. For Indian users, the network optimization and battery upgrades make a noticeable difference in day-to-day usage. Overall, Nothing OS 4.0 continues the brand’s promise of delivering a clean, fast, and modern smartphone experience.