Nothing OS 4.0 Update Rolls Out on CMF Phones: Android 16, Extra Dark Mode & Smarter Features

This is not just another routine update. It is a signal that CMF is serious about long-term software support and daily usability, exactly what you expect if you rely on your phone for work, content and everything in between.

Nothing OS 4.0 brings a refined interface

The first thing you feel after installing Nothing OS 4.0 is balance. Icons look cleaner, spacing feels intentional and Quick Settings finally breathe. You get:

• Refreshed status bar icons
• Redesigned Quick Settings layout
• New lock screen clock styles
• Cleaner system components

Everything is tuned to reduce visual noise, so your daily scrolling feels calmer and more intuitive.

Nothing OS 4.0 introduces extra dark mode 

If you love dark mode, this system takes it a step further. The Extra Dark Mode enhances black appearance, increases contrast and makes the system easier to read. You benefit from:

• Reduced eye strain at night.
• Better transparency of notifications and application drawer.
• Improved power efficiency on AMOLED displays.
• The assistance was offered to the first-party applications such as Essential Space.

This makes the lengthy reading and late-night usage considerably comfortable.

Nothing OS 4.0 expands customisation with new widgets

With Nothing OS 4.0, you gain more control over how information appears on your home screen. New widget sizes let you design compact yet useful layouts without clutter.

New widget formats include:

• 1×1 and 2×1 Weather widgets
• Pedometer widgets for quick fitness checks
• Screen Time widgets for digital wellbeing

You design your home screen around how you actually use your phone.

Nothing OS 4.0 improves multitasking 

Multitasking finally feels fluid. Nothing OS 4.0 upgrades pop-up view, allowing you to run and switch between floating apps using simple gestures. You can reply, browse and reference apps without breaking focus.

Another welcome addition is Hidden Apps, letting you:

• Remove selected apps from the app drawer
• Keep your interface clean
• Still access apps quickly when needed

It’s privacy and minimalism working together.

Nothing OS 4.0 delivers smoother animations 

Small details matter and Nothing OS 4.0 understands that. Animations are smoother, gestures feel more responsive and app transitions now include subtle background scaling for visual continuity.

You also get improved haptic feedback:

• Gentle vibration at minimum and maximum volume
• More tactile responses during gestures
• A refined sense of touch while navigating

Your phone simply feels more “alive” in daily use.

Nothing OS 4.0 upgrade to Android 16 

Beyond visuals, this system upgrades your device from Android 15 to Android 16. This means:

With this update, you are making your CMF phone future-proof.

Nothing OS 4.0 rollout timeline and supported devices

Nothing OS 4.0 update is being implemented in stages across India in order to ensure stability.

• CMF Phone 1: Update rolling out now
• CMF Phone 2 Pro: Update expected in early January

The update will automatically be received through OTA. Just keep Wi-Fi on and remember to have enough battery before installing.

Final takeaway: Nothing OS 4.0 is refinement done right

You are not just seeking flashy with "Nothing OS 4.0", you are acquiring a smoother, smarter and thoughtful smartphone experience. Android 16 includes overhaul of the core features to small improvements in the user interface and every day, Android’s update silently makes everything you use better.

FAQs

Q1. Does "Nothing OS 4.0" available in India?
Yes, it is being rolled out in phases in India with the CMF Phone 1 and will soon be available with the CMF Phone 2 Pro as well.

Q2. What version of Android is used by this Nothing update?
This is a version that is built on Android 16.

Q3. Does "Nothing OS 4.0" improve battery life?
Yes, features like Extra Dark Mode help reduce power consumption.

Q4. How do you install Nothing OS 4.0?
Go to Settings > System Update and install via OTA when available.

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