Nothing has officially launched the Nothing OS 4.0 Open Beta, inviting users of Phone (3), Phone (2), Phone (2a), and Phone (2a) Plus to experience a preview of the upcoming update. This beta version, based on Android 16, introduces a range of enhancements spanning performance, connectivity, design, and camera functionalities. Users interested in participating should back up their data prior to installation and note that registration for the open beta will close on October 14, 2025.
How to Join the Nothing OS 4.0 Open Beta Program
To ensure a smooth transition to Nothing OS 4.0, users must first confirm their devices are running the latest stable builds:
- 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, follow these steps to join the beta:
- Download the Beta Updates Hub APK and install it from your Downloads folder.
- Navigate to Settings > System > Nothing Beta Hub on your device.
- Tap “Join Beta” to register.
- After registering, select “Go to Update” to begin the upgrade.
- If the update does not start automatically, manually check for updates via Settings > System > System updates.
Once installed, users can provide feedback through Settings > System > Feedback or participate in discussions on the Nothing Community forum. It is important to remember that beta software may cause unexpected issues, including data loss or the need for a factory reset, so backing up data beforehand is strongly recommended.
Key Features of Nothing OS 4.0
For Phone (3) Users
- AI Usage Dashboard: Track AI model activity within the Essential Space.
- Enhanced Lock Screen and Always-On Display: Improved responsiveness and visual performance.
- Optimized Brightness: Smarter brightness adjustments for better user experience.
- Camera and Bluetooth Stability: Smoother operation for photography and wireless connections.
- Stronger Wi-Fi and Network Connectivity: More reliable connections with enhanced stability.
- Overall System Improvements: General performance and stability enhancements across the board.
For Phone (2), Phone (2a), and Phone (2a) Plus
- “Stretch” Camera Preset: Developed in collaboration with photographer Jordan Hemingway, this preset offers new creative options for photos.
- System-Level App Optimization: Faster app launch times can be found in Settings > Apps > App optimization.
Features Available Across All Supported Devices
- Pop-up View with Floating Icons: Quickly switch between apps using two floating icons for easier multitasking.
- New Lock Screen Clock Faces: Two additional styles to customize your lock screen.
- Support for 2×2 Quick Settings Tiles: More options to personalize your quick settings menu.
- Extra Dark Mode: Accessible via Settings > Display > Dark theme > Extra dark mode for deeper blacks and reduced eye strain.
Essential Apps and Playground Enhancements
Users can now create AI-powered widgets and share them within the Playground environment alongside Camera Presets and EQ Profiles. Phone (3) supports up to six widgets, while other models can accommodate two, with this limit designed to maintain optimal device performance.
