Nothing has officially started rolling out the Nothing OS 4.0 stable update for the CMF Phone 1. The company has also confirmed that the CMF Phone 2 Pro will receive the same update in the coming weeks as part of a phased rollout.
Rollout details
According to the announcement, the update rollout is staggered:
- CMF Phone 1 is receiving the update from 26th December
- CMF Phone 2 Pro will get the update gradually in the coming weeks
This means users of the CMF Phone 2 Pro will need to wait a little longer before the update reaches their devices.
Update size and installation
For CMF Phone 1, the update size is around 2.03GB. The installation process takes roughly 25–30 minutes, depending on device and network conditions. No data wipe is required, but users are advised to take a backup just to be safe.
Also read: Nothing OS 4.0 Stable Update: Important Settings You Must Change After Updating
Based on Android 16
Nothing OS 4.0 is based on Android 16 and comes with the December security patch. This is also expected to be the last major Android update for the CMF Phone 1. Security updates may continue for some time, but no future major Android version update is expected.
Key new features and changes
The update brings several visual, functional, and performance improvements:
- New battery icon with battery percentage shown inside the icon
- Updated status bar icons for Wi-Fi and mobile network
- Two New lock screen clock faces
- Extra Dark Mode for deeper blacks and better contrast
- Hidden apps feature directly from the home screen
- Improved app drawer search controls
- More widget size options for weather, pedometer, and screen time
- Resizable Quick Settings tiles, including 2×2 layout support
- Dual floating app icons for easier multitasking
- App optimization feature to improve app opening speed
- Camera presets support, including new styles and watermark options
- Redesigned Nothing app icons and refreshed Recorder app UI
Lock Glance warning
The update also includes Lock Glance, which shows dynamic wallpapers and content on the lock screen. However, it is disabled by default and is recommended to stay turned off, as it may show ads and unnecessary content.
Overall performance
After initial usage, the device feels smooth and stable. Performance and battery life appear normal, though full optimization may take some time after the update. Users are advised to run App Optimization after installing the update for better stability.
Should you update?
If you are using CMF Phone 1, the update is recommended for:
- New features
- Better customization
- Visual improvements
- Latest security patch
CMF Phone 2 Pro users will need to wait a bit longer, but the same update will arrive soon.
