Android 15 introduces true variable refresh rate support, but there are limitations
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:
- 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.
- 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.
Android
Google Phone app enhances scam call reporting and new Chromecast update rolled out
The Google Phone app is steadily becoming more user-friendly, especially when dealing with spam and scam calls. In a recent update, Google has introduced and is refining features to empower users to report fraudulent calls more effectively. Meanwhile, a fresh update for the Chromecast with Google TV has begun rolling out, keeping the device optimized as Google preps for larger changes.
Google Phone App: Smarter Tools for Scam Reporting
The Google Phone app has long been a reliable tool for blocking unwanted calls, but it’s taking scam call reporting to the next level. Users can already block or report spam calls directly from the call log by long-pressing an entry and selecting “Block or report.” From there, you can classify the call as either spam or scam and choose whether to block the number. However, this process currently sends minimal context to Google.
An upcoming update is set to introduce a detailed feedback mechanism. Version 155.0.697690833-publicbeta of the app hints at a future feature where users can provide additional insights about scam calls. This update may include:
Enhanced Reporting Options
When reporting a call as a scam, users might see a multi-select menu with questions like:
- What did the scammer ask for?
- Personal information (e.g., full name)
- Passwords
- Electronic payments
- App downloads
- “Not applicable” or “Something else” (with a text entry option)
- What did the scammer pretend to be?
- Government agencies (e.g., FBI, IRS, Social Security Administration)
- Friends or acquaintances
- Law enforcement (e.g., police)
- “Not applicable” or “Something else” (allowing for further details)
This information will be reviewed by Google and could potentially be used to warn other users about known scam numbers or their tactics.
Lookup Button Gets Better Placement
The update also tweaks the Lookup button, which helps identify unknown numbers. While this button has existed in the app, it is now visible within the Google Contacts app when accessed through the Phone app. A banner labeled “Contact info from Phone” further clarifies the context.
Although these features are still in development and not yet available for public use, they highlight Google’s ongoing efforts to combat spam and scam calls.
Chromecast with Google TV: Latest Update Rolling Out
Google is also rolling out a new update for the Chromecast with Google TV, continuing its commitment to improving performance and security.
Update Details
- Version: STTL.240812.006.N1 (upgraded from STTL.240812.006)
- Size: 59.48 MB (smaller than October’s 83.01 MB patch)
- Patch Level: September 2024 (still based on Android 12)
- Changes: General bug fixes and performance improvements.
This marks the eighth update for Chromecast with Google TV in 2023, following monthly patches since February. While these incremental updates focus on stability, they pave the way for a bigger milestone: Android 14.
What’s Next for Chromecast?
The Android 14 update is expected to bring a significant feature called “Home runtime”, enabling Chromecast devices to function as hubs for Matter smart home devices. Google has until the end of the year to roll out this transformative upgrade, and this recent patch could be preparing the device for the transition.
How to Update Your Chromecast
To ensure you have the latest version:
- Navigate to Settings on your Chromecast with Google TV.
- Go to System > About > System update.
- Follow the prompts to install the update.
Conclusion
Google’s latest improvements for the Phone app and Chromecast with Google TV showcase its focus on user experience and security. With smarter scam call reporting on the horizon and updates ensuring devices stay optimized, Google continues to lead in enhancing everyday tech. Stay tuned as these features and updates roll out to users worldwide!
Android
Android 16 enhances notification privacy and introduces integrated screen dimming
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.
Android
Google enhances Android data transfer and app login features: What to Expect in 2025
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:
- 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.
- Seamless Transfer: During device setup, restore keys are transferred along with app data—either via local device-to-device transfer or through cloud backup.
- 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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