CMF by Nothing starts rolling out Nothing OS 4.0 update for Phone 1 and Phone 2 Pro users in India

CMF Phone 2 Pro

• Nothing OS 4.0 update rolling out to CMF Phone 1 in India, Phone 2 Pro next
• Update brings visual changes, enhanced dark mode, and new widget size options
• Rollout is phased by region and device batch to ensure stability and performance.

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CMF by Nothing has started rolling out the Nothing OS 4.0 update for its smartphones in India. The update is being released in phases and is currently reaching CMF Phone 1 users first, with CMF Phone 2 Pro users scheduled to receive it shortly after. Nothing OS 4.0 is based on Android 16 and introduces a set of interface, usability, and system-level changes aimed at refining the overall software experience.

The company said the rollout will continue over the coming days, depending on region and device batch, which is standard practice to monitor performance and stability during large software updates.

Rollout timeline and supported devices

According to CMF, the update is now live for CMF Phone 1 users across India. The CMF Phone 2 Pro is expected to start receiving the update in early January. Users will be notified once the update becomes available on their devices and can install it via the system update section in settings.

Both devices are part of CMF’s expanding smartphone portfolio in India and are receiving the update as part of Nothing’s broader software support roadmap.

Interface and visual changes

Nothing OS 4.0 introduces several visual refinements across the system. These include updated status bar icons, refreshed system components, new lock screen clock styles, and a reorganised Quick Settings layout. The company says these changes are designed to improve clarity and everyday usability without altering the core Nothing OS design language.

The update also brings smoother animations for gestures, swipes, and touch interactions, along with more responsive notification motion.

A key addition in Nothing OS 4.0 is an enhanced dark mode, including an “extra dark mode” that claims to improve contrast and reduce power usage. Readability has been improved across notifications, the app drawer, and Quick Settings, with support extended to first-party apps.

Users also get new widget size options, including 1×1 and 2×1 layouts for apps such as Weather, Pedometer, and Screen Time. Other additions include improved pop-up view multitasking, the ability to hide apps from the app drawer, and haptic feedback alerts when reaching volume limits.

Availability

Nothing OS 4.0 is being rolled out gradually in India. Users are advised to keep their devices connected to Wi-Fi and ensure sufficient battery before installing the update.