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Android 15 introduces true variable refresh rate support, but there are limitations

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Android 15 Brings True Variable Refresh Rate (VRR) Support

Most modern Android smartphones, including mid-range and flagship devices, come equipped with high-refresh-rate displays. These screens often operate at fixed rates like 60Hz, 90Hz, or 120Hz. Even some budget phones now feature refresh rates above the standard 60Hz. However, while many phones boast this feature, they lack true variable refresh rate (VRR) technology. Despite manufacturers marketing VRR support through LTPO (Low-Temperature Polycrystalline Oxide) displays, Android itself didn’t fully support VRR until the release of Android 15.

What Is Adaptive Refresh Rate in Android 15?

With Android 15, Google has introduced Adaptive Refresh Rate (ARR), a form of VRR, directly into the operating system. Previously, Android could switch between different fixed refresh rates like 60Hz and 90Hz based on the display mode. However, this was not a true adaptive system. The operating system would switch modes based on content but couldn’t seamlessly adjust refresh rates within a single mode.

In Android 15, ARR dynamically adjusts the refresh rate according to the content’s frame rate without needing to change display modes. This ensures a smoother user experience by adapting the screen refresh rate on the fly, whether you’re watching a video or playing a game.

Benefits of True Variable Refresh Rate in Android 15

Google highlights two main benefits of the ARR feature in Android 15:

  1. Power Efficiency: By allowing the display to operate at lower refresh rates when high refresh rates aren’t necessary, the device consumes less power. It ramps up the refresh rate only when the content requires it, reducing unnecessary battery drain.
  2. Improved Performance: Since ARR eliminates the need to switch between different display modes, it reduces potential “jank” or stuttering issues that occur during mode transitions, offering a smoother visual experience.

Why Wasn’t True VRR Supported Before?

Although smartphone manufacturers have promoted variable refresh rate features with LTPO displays, these implementations were limited. LTPO displays allowed for a broader range of refresh rates, from as low as 1Hz or 10Hz up to 120Hz. However, this was achieved by toggling between fixed display modes rather than dynamically adjusting within a single mode.

For example, on many Android devices with LTPO OLED panels, the refresh rate could drop to 10Hz during static content like reading, then jump to 120Hz during gaming. However, these changes were still tied to pre-defined modes and didn’t dynamically adapt based on real-time content needs, unlike true VRR seen in PC gaming monitors.

Technical Advancements in Android 15

In previous Android versions, some OEMs tried to implement VRR-like features at the kernel level. However, this approach required custom logic for each device, making it difficult to standardize due to Android’s Generic Kernel Image (GKI) requirements. The kernel, responsible for managing hardware, lacked deep insights into the content being displayed, limiting its ability to adjust the refresh rate effectively.

Android 15 addresses this by implementing VRR at the Hardware Composer (HWC) HAL (Hardware Abstraction Layer) level, specifically with the introduction of version 3 of HWC HAL APIs. This allows the operating system to make more informed decisions about when to adjust the refresh rate based on the content displayed. It offers a unified method for OEMs to implement adaptive refresh rates without needing complex customizations at the kernel level.

Device Compatibility and Challenges

While Android 15 introduces true VRR support, not all devices will be able to use it right away. For a phone to take advantage of this feature, it must have support for the updated HWC HAL version 3. Currently, devices like the Google Pixel 7 and newer models, as well as those powered by the Qualcomm Snapdragon 8 Elite chip, have this version. However, older devices, including the Google Pixel 6 series and phones using the Qualcomm Snapdragon 8 Gen 3, do not support the necessary HAL version.

Additionally, even if a device receives an update to Android 15, it may not support ARR due to hardware limitations or the effects of Google’s Requirements Freeze (GRF) program. This program prevents mandatory hardware changes in updated devices, so phones designed before the release of HWC HAL version 3 may not fully support Android 15’s adaptive refresh rate features.

Future Impact and Expectations

If Android 15’s adaptive refresh rate feature is widely adopted, it could lead to better performance and battery efficiency in everyday use. For instance, it may help devices reduce the refresh rate to 30Hz or 24Hz when playing films, rather than defaulting to 60Hz, which could conserve battery life.

However, it’s important to note that Android 15’s implementation is not the same as the true VRR seen in gaming PCs, where the refresh rate matches the frame rate of the game. Instead, Google’s documentation indicates that the adaptive refresh rate in Android 15 only supports rates that are divisors of the display’s native refresh rate to prevent tearing effects.

This means that while Android 15’s ARR feature offers significant improvements, it may not provide full synchronization between game frame rates and display refresh rates, as seen in PC monitors with NVIDIA G-Sync or AMD FreeSync.

Looking Forward

As more details emerge and updates roll out, it will be interesting to see which existing devices fully adopt Android 15’s adaptive refresh rate capabilities. Google’s future Pixel devices are likely candidates for early adoption, but broader support will depend on how quickly OEMs implement the necessary hardware and software changes.

In conclusion, Android 15 marks a significant step forward in providing true VRR support at the operating system level. While the feature is promising, its real-world impact will depend on device compatibility and OEM adoption. Users can look forward to a smoother experience and potentially better battery life, making it a long-overdue but welcome addition to the Android ecosystem.

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Android 16 enhances notification privacy and introduces integrated screen dimming

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Android 16

Android 16 is already making waves with its first developer preview (DP1), introducing two notable features that improve privacy and usability: automatic hiding of sensitive notifications on the lock screen and seamless integration of screen dimming functionality into the brightness bar. These updates aim to enhance user experience while prioritizing data security and convenience.

Protecting Sensitive Notifications on the Lock Screen

Lock screen notifications offer quick access to updates, but they can expose sensitive information to prying eyes, especially if your device is lost or stolen. Android 16 tackles this issue by automatically hiding the contents of sensitive notifications, particularly those containing one-time passwords (OTPs) and two-factor authentication (2FA) codes.

In Android 16 DP1, notifications deemed “sensitive” by the Android System Intelligence service are automatically redacted on the lock screen, regardless of your notification settings. While users can still control how notifications are displayed—choosing to hide titles, summaries, or all notification content—this feature ensures that sensitive information is protected by default.

This builds on privacy enhancements introduced in Android 15, where untrusted apps were blocked from accessing sensitive notifications, even with notification-reading permissions. Android 16 takes it a step further by ensuring these notifications are redacted on the lock screen itself, safeguarding your data from potential breaches.

Evolving Lock Screen Notification Settings

The updated lock screen notification settings in Android 16 provide flexible options:

  • Sensitive Notifications Setting: Allows you to hide titles and summaries for all notifications, while still displaying app icons.
  • Lock Screen Notification Control: Lets you choose to show all, hide specific categories like conversations, or hide all notifications entirely.

However, many users stick to default settings, which display full notification content. Android 16 ensures that even in this default mode, sensitive OTP notifications remain hidden, preventing accidental exposure.

Even Dimmer: A Smarter Screen Dimming Solution

Alongside privacy enhancements, Android 16 DP1 introduces “Even Dimmer,” a more integrated version of the existing Extra Dim mode. This feature simplifies the process of reducing screen brightness for comfortable viewing in low-light conditions.

Previously, the Extra Dim feature had to be activated manually via Settings > Accessibility or through a Quick Settings tile. While effective, it required extra steps and could easily be forgotten. With Even Dimmer, the functionality is embedded directly into the brightness bar. Sliding the bar to its lowest point now triggers an additional dimming layer, making it intuitive and accessible.

Why Even Dimmer is a Game-Changer

  • Seamless Integration: Even Dimmer removes the need for separate toggles, blending directly into everyday brightness adjustments.
  • Quick Deactivation: Simply increasing the brightness disables the feature, reducing the chance of accidentally leaving it on.
  • Eliminates Redundancy: The Extra Dim feature will be removed once Even Dimmer is fully rolled out, simplifying the interface further.

Availability and Device-Specific Rollout

Curiously, Even Dimmer is not universally available across all Pixel devices running Android 16 DP1. For now, it seems limited to the base Pixel 9, where the feature is enabled through a device-specific framework overlay. Other Pixel models, including the Pixel 6, 8, and 8a, lack this feature in the current preview.

Google may expand availability in future updates or adjust the rollout based on testing and feedback. However, this selective activation suggests it might be fine-tuning the feature for broader compatibility.

What to Expect from Android 16

While Android 16 is still in its early stages, the inclusion of these features reflects Google’s focus on balancing usability with security. The automatic hiding of sensitive notifications and the streamlined dimming functionality highlight the platform’s evolution toward a smarter, more user-centric design.

As Google refines these features in upcoming developer previews, Android users can look forward to a safer and more convenient experience in the final release. Whether it’s protecting your private data or making your screen easier on the eyes, Android 16 sets a new standard for mobile operating systems.

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Google enhances Android data transfer and app login features: What to Expect in 2025

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Google is making it easier to set up Android devices with new features aimed at improving data transfers and app logins. These advancements, introduced with the Pixel 9 and expanding across more Android devices in 2025, aim to simplify the user experience when switching devices or setting up a new phone.

Post-Setup Data Transfer: Explore First, Transfer Later

With the Pixel 9 running Android 14, Google introduced a flexible data transfer option. Users can now copy data from another device even after completing the initial setup. This feature, accessible through the “Back up or copy data” page in system settings, encourages users to explore their new device before transferring data.

Starting in 2025, this post-setup transfer capability will be available on more Android phones. This feature allows users to complete basic setup quickly and transfer data later when it’s convenient. Data transfers can be initiated via system settings or through the updated Android Switch app, which is available on both Android and iOS platforms.

Faster and Smarter Android Switch Experience

Google has been improving the Android Switch process for the past two years, focusing on speed and convenience. Key highlights include:

  • 40% Faster Transfers: Transferring data from iOS to Android using a cable is now significantly quicker compared to 2023.
  • Comprehensive Data Support: The transfer process ensures that critical data like chats, calendars, contacts, Wi-Fi configurations, screen lock settings, and Google accounts are seamlessly moved to the new device.
  • RCS Compatibility: Rich Communication Services (RCS) improve messaging capabilities during the transition. Users can enjoy high-resolution media sharing, emoji reactions, and group chat management regardless of whether friends use Android or iOS.

However, full RCS data transfers are currently exclusive to Pixel 9 and are not yet available for other Android devices.

Credential Manager: Stay Logged In Effortlessly

Google is also addressing the hassle of logging back into apps after setting up a new device. The Credential Manager API, a tool responsible for managing sign-ins and passkeys, now includes a feature called Restore Credentials.

How Restore Credentials Works:

  1. Backup Creation: When users log into an app, a restore key is created and stored securely. This key is encrypted and saved either locally or in cloud backups, depending on the user’s preferences.
  2. Seamless Transfer: During device setup, restore keys are transferred along with app data—either via local device-to-device transfer or through cloud backup.
  3. Automatic Login: Once the app is launched on the new device, it retrieves the restore key to sign the user back in automatically.

This process eliminates the need for manual logins and even allows users to receive notifications and access app content without opening the app first.

Developer Integration:

  • No additional developer work is needed for transferring restore keys, as the Android backup and restore mechanism handles this automatically.
  • Developers can further enhance the experience by implementing a “backup agent,” enabling silent logins so users remain signed in without launching the app.

Availability and Future Outlook

The Restore Credentials API is currently in developer preview and supports Android 9 and later versions. With these features expanding across Android devices in 2025, Google is set to make device setup and data transfer smoother than ever.

By focusing on user-friendly innovations like post-setup data copying and automatic app logins, Google is redefining how Android users transition to new devices while ensuring data security and convenience.

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Google’s Key Updates: Developer tools, Google TV streamer availability, and Maps timeline changes

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In the fast-evolving tech world, Google’s recent advancements highlight their dedication to improving user and developer experiences. From enhancing developer tools for Android to resolving Google TV Streamer availability issues and rolling out significant updates to Maps’ Location History, here’s an in-depth look at the latest changes.

1. Empowering App Developers with Enhanced Tools

The foundation of your favorite apps lies in the software tools developers use to build them. While Android itself provides the core platform, it’s the apps layered on top that make smartphones indispensable. For this reason, Google’s updates to its developer tools are as crucial as any Android update.

Why Developer Tools Matter

Developing high-quality apps requires powerful tools, and Google’s Android Studio and associated utilities are essential for app creators. Recently, Google improved the Android Emulator, a vital tool for testing apps. Previously, the emulator was prone to slowdowns and crashes, even on high-performance computers. With the latest updates, performance has significantly improved, allowing developers to work more efficiently. While there’s still room for improvement, this marks a big step forward.

A Lesson from the Past

In Android’s early days, subpar developer tools flooded the Play Store with poorly designed apps. Recognizing this, Google prioritized better tools to support developers, fostering innovation and ensuring a higher quality of apps for users. Whether you’re a seasoned professional or a novice, these updates make creating Android apps more accessible and rewarding.

2. Google TV Streamer: Finally In Stock

Since its launch in September, the Google TV Streamer has faced significant stock shortages due to high demand. However, availability has now stabilized, making it easier to purchase just in time for the holiday season.

Where to Buy the Google TV Streamer

  • Google Store: Both “Porcelain” and “Hazel” color options are in stock, with estimated delivery times of 5-7 days.
  • Retailers: Best Buy has in-store availability, while Amazon now offers Prime delivery after weeks of limited stock.

This improved availability is welcome news for consumers seeking an affordable and versatile streaming device. Additionally, the Chromecast with Google TV remains a budget-friendly alternative and is widely available.

3. Major Changes to Google Maps’ Timeline and Location History

Google Maps is undergoing a significant overhaul of its Location History feature, now renamed Timeline. This change prioritizes user privacy by shifting data storage from the cloud to local devices.

What’s New?

  • On-Device Storage: Timeline data will now stay on your phone, ensuring greater privacy. This change also means Google can no longer provide data for geofence warrants.
  • Device-Specific Data: Unlike before, multiple devices can no longer contribute to a shared Timeline.
  • Backup and Transfer Options: New tools will allow users to back up or transfer Timeline data between devices.

Impact on Users

While this change enhances privacy, it also brings limitations. Timelines will no longer be accessible on the web, and users must take action if they wish to retain their data. Google will notify users via email and app notifications, providing approximately six months to decide whether to back up or delete their Timeline data.

Rollout Timeline

This update is rolling out gradually through 2024. If you haven’t received a notification yet, there’s no immediate action required. Google assures users they’ll have ample time—around six months after being notified—to decide what to do with their data.

Why These Updates Matter

Google’s efforts to enhance developer tools, improve hardware availability, and prioritize user privacy reflect their commitment to both innovation and consumer satisfaction. Whether you’re a developer creating the next great app, a user looking for seamless streaming, or someone concerned about digital privacy, these updates deliver meaningful improvements.

With these advancements, Google continues to shape the tech landscape, ensuring its ecosystem remains a leader in usability, accessibility, and security.

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