Nothing OS 40 Open Beta Unveiled: Here’s Everything You Need to Know

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Nothing has officially launched the Nothing OS 4.0 Open Beta for its Phone (3), Phone (2), Phone (2a), and Phone (2a) Plus devices. This beta program gives early adopters a sneak peek at the features and improvements coming with the full release, which is built on Android 16. With enhancements spanning performance, connectivity, design, and camera functionality, this update aims to refine the user experience across all supported devices. Users are strongly advised to back up their data before participating in the beta, as early software versions can have bugs or require a factory reset. Registrations for the open beta will close on October 14, 2025, after which new sign-ups will no longer be accepted.

How to Join the Nothing OS 4.0 Open Beta

To participate in the beta, ensure your device is on the latest stable build:

Phone (3): Metroid-V3.5-250911-2112

Phone (2): Pong-V3.2-250917-1451

Phone (2a): Pacman-V3.2-250904-1648

Phone (2a) Plus: PacmanPro-V3.2-250904-1704

Next, download the Beta Updates Hub .apk and install it from your Downloads folder. Then follow these steps:

1. Open Settings > System > Nothing Beta Hub.

2. Tap “Join Beta” to register.

  1. After registration, tap “Go to Update” to upgrade your device.

If the update does not appear automatically, manually check via Settings > System > System updates. Once installed, users can provide feedback through Settings > System > Feedback or via the Nothing Community forum.

It’s important to remember that beta software may cause system instability or data loss. Backing up important information before installation is essential.

Key Features of Nothing OS 4.0

Phone (3) Improvements

AI Usage Dashboard: Track AI activity directly in Essential Space.
Enhanced Lock Screen & AOD: Smoother performance for lock screen and always-on display.

Optimized Brightness: Improved auto-brightness responsiveness.

Camera & Bluetooth Stability: Better reliability during extended use.

Wi-Fi & Network Enhancements: Stronger connections and fewer drops.

System Stability Improvements: Overall smoother and more responsive device performance.

Phone (2), Phone (2a), and Phone (2a) Plus Enhancements

Stretch Camera Preset: Developed in collaboration with photographer Jordan Hemingway.
System-Level App Optimization: Faster app startup times through Settings > Apps > App Optimization.

Features Across All Devices

Pop-Up View: Quick app switching with two floating icons.

Additional Lock Screen Clock Faces: More customization options.

2×2 Quick Settings Tiles Support: Enhanced access to frequently used settings.
Extra Dark Mode: Found under Settings > Display > Dark theme > Extra dark mode.

Essential Apps & Playground

AI-Powered Widgets: Users can create and share widgets in Playground.
Camera Presets & EQ Profiles: Playable and shareable customization features.
Widget Limits: Phone (3) supports up to 6 widgets, other models up to 2 for performance optimization.

What Undercode Say:

Nothing OS 4.0 represents a strategic push by Nothing to refine its ecosystem while leveraging Android 16’s capabilities. The inclusion of AI-focused tools like the AI Usage Dashboard and AI-powered widgets indicates a clear shift toward integrating machine learning directly into the user experience. For Phone (3), the expanded widget capacity and Essential Space enhancements signal an effort to differentiate it from earlier models, offering more control over multitasking and personalized content.

Camera improvements, including the Stretch preset, show a strong commitment to creative photography. By collaborating with professionals like Jordan Hemingway, Nothing is attempting to create features that appeal not just to casual users but also to photography enthusiasts. System-level optimizations for older models suggest the company is equally focused on performance consistency, ensuring that earlier devices do not feel neglected.

Connectivity improvements, especially for Wi-Fi and Bluetooth, are crucial in a time where stability and fast network transitions define the user experience. Nothing OS 4.0’s emphasis on system-level app optimization will likely reduce lag, improve battery efficiency, and provide a smoother overall interface.

The addition of Extra Dark Mode and customizable lock screen options caters to the increasing demand for personalization and accessibility. Meanwhile, Pop-Up View and 2×2 Quick Settings tiles reflect Nothing’s awareness of evolving multitasking habits and efficiency needs.

The beta’s limitations, like widget restrictions on older models, indicate that Nothing is balancing feature availability with device performance. Early adoption risks are mitigated by a clear emphasis on feedback channels, highlighting the company’s commitment to iterative improvement based on user input.

Overall, Nothing OS 4.0 is not just a cosmetic upgrade; it is a comprehensive refinement designed to harmonize software performance, AI integration, and creative tools. The approach positions Nothing as a brand that bridges functional efficiency with aspirational tech experiences.

Fact Checker Results

✅ Beta release confirmed for Phone (3), Phone (2), Phone (2a), Phone (2a) Plus.
✅ Android 16 is the underlying OS for Nothing OS 4.0.
⚠️ Features like AI-powered widgets and Stretch Camera preset are device-dependent.

Prediction

Nothing OS 4.0 is likely to strengthen user loyalty, especially among tech-savvy early adopters. The AI and photography features could position Nothing as a creative-first brand. Post-beta, expect performance refinements and expanded feature availability, possibly leading to wider adoption of Nothing devices in competitive markets.

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