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.
Pixel 6 to 9 now lets you monitor device temperature with updated troubleshooting app
Google has updated the Pixel Troubleshooting app to introduce a new feature that lets Pixel 6 through Pixel 9 users monitor their phone’s temperature in real-time. This capability offers enhanced insights into how your device is performing and what actions you can take to manage its temperature effectively.
How to Check Device Temperature
You can access this new feature through the following steps:
- Open the Settings app.
- Navigate to Battery > Battery diagnostics (scroll to the bottom).
- Look for the “Phone is very warm” section.
Previously, this section simply indicated that “All settings are optimized.” Now, it provides a live temperature readout, which is updated in real time.
Temperature Indicators and Messages
The device temperature is classified into four distinct categories, represented by color-coded labels:
- Cold
- Normal
- Warm
- Elevated
Each category comes with tailored messages to help users understand the phone’s status and take necessary actions:
- Cold:
“Your phone’s estimated temperature is lower than normal. It may shut down suddenly.” - Normal:
“This estimated temperature is typical with normal phone use.” - Warm:
“Your phone is slightly warm, but this is normal during use. To prevent further temperature increases, screen brightness and network speeds may be reduced.”
For devices charging:
“Charging is paused, and screen brightness and network speeds may be reduced.” - Elevated:
“Your phone’s estimated temperature is higher than normal. Your phone will try to cool down by temporarily limiting performance and pausing certain features.”
Tips for Managing Device Temperature
Google offers several tips to help you maintain your device’s temperature:
- Provide airflow: Ensure your phone has proper ventilation.
- Use proper cases: Stick to cases designed specifically for your Pixel device.
- Close power-intensive apps: Shut down apps like games or video streaming to allow the phone to cool down.
- Keep it protected in cold environments: Use an insulated case or keep it in an inner pocket close to your body.
- Let it rest before heavy tasks: Before gaming or video calls, let the phone stabilize to prevent damage.
These suggestions aim to optimize your phone’s performance and extend its longevity.
Technical Insights
Google notes that the temperature reading is an estimate derived from multiple internal sensors. The information can also be accessed by searching “Device temperature” directly in the Settings app.
Availability
This feature is available with version 1.0.693922709 of the Pixel Troubleshooting app. It works on the Pixel 6, 7, 8, and 9 series running Android 15 (November release or later). However, it is not yet supported on the Pixel Tablet.
The update is gradually rolling out via the Google Play Store. If it’s not available on your device yet, you can check the app listing directly to see if you can manually update.
Why It Matters
Real-time temperature monitoring enhances the user experience by offering greater control and transparency over device performance. As smartphones handle more demanding tasks, such tools are essential for maintaining reliability and preventing hardware issues.
The Pixel’s temperature-checking capability is another example of how Google is leveraging software updates to improve user experience on its devices.
Source – 9To5
Google Assistant gets smarter with Gemini AI and Google Wallet expands on Wear OS
Google is rolling out significant updates to its ecosystem, enhancing user experience through advanced AI-powered responses in Google Assistant and expanded features in Google Wallet for Wear OS devices. Here’s what’s new and how it changes the way you interact with your devices.
Gemini-Powered Google Assistant: A Smarter, More Conversational Experience
Google Assistant, now backed by Gemini large language models (LLMs), is delivering improved, more natural interactions on smart speakers and displays like the Nest series. This marks a shift towards a more human-like conversational assistant, offering richer, context-aware responses.
What’s Changing?
- New Voice for Complex Queries:
Some Nest users are experiencing a fresh Assistant voice that feels warmer and better-paced, reserved for conversational tasks. For simpler questions, like asking about the weather, the standard voice remains. - Enhanced Interaction:
The Gemini-powered Assistant excels in follow-up questions, allowing a back-and-forth conversation. For example, when asked, “What’s up?”, users report receiving detailed, thoughtful replies compared to the simpler responses seen before. - Natural Language Understanding:
This upgrade enables the Assistant to handle pauses, adjust to multiple or rephrased questions, and adapt better to user intent.
Features in Development:
Google Home app hints at upcoming updates that users can expect soon:
- Richer Responses: Summarized yet clear explanations for complex topics.
- Improved Voices: More lifelike tones for easier communication.
- Enhanced Flexibility: Ability to adjust responses dynamically to your changing queries.
Google Wallet for Wear OS: Corporate Badges, Campus IDs, and More
Google Wallet on Wear OS is evolving into a versatile tool beyond payment cards. Soon, it will support “access cards,” including work badges, campus IDs, and hotel keys, making it an essential companion for wearable device users.
Key Features Coming to Wear OS Wallet:
- Access Cards Integration:
Users can store corporate badges, student IDs, and hotel keys on their Wear OS devices, making entry to workplaces, campuses, and hotels hands-free and seamless. - Expanded Support for Passes:
Following the introduction of loyalty cards and QR code-based passes last year, Google Wallet now groups and archives passes, allowing for easy organization and retrieval. - International Reach:
Google Wallet’s web interface, launched earlier this year, now serves over 90 countries. This platform lets users manage saved payment methods, view transaction histories, and access digital passes from one centralized hub.
Rollout Timeline:
The new features will debut with version 24.47 of Google Play Services. While not widely available yet, users can expect a gradual rollout over the coming weeks.
Why This Matters
These updates reflect Google’s focus on making everyday tasks more intuitive through AI and enhanced device connectivity. The smarter Assistant powered by Gemini LLMs ensures smoother conversations, while the expanded Wallet features on Wear OS bring convenience to both personal and professional settings.
Stay tuned for further updates as Google continues refining its ecosystem, blending cutting-edge AI with practical everyday tools.
Google’s Innovations: Pixel Tablet 2’s canceled upgrades, Quick Phrases glitch, AI accuracy boost, and Gemini’s new features
1. Pixel Tablet 2 Canceled but Packed with Promising Features
Google’s much-anticipated sequel to the Pixel Tablet, codenamed “Kiyomi”, has reportedly been shelved. Despite its cancellation, leaks reveal several exciting upgrades that could have addressed the shortcomings of its predecessor. Here’s what the Pixel Tablet 2 might have offered:
- 120Hz Display: A significant jump from the 60Hz panel of the first-generation Pixel Tablet, providing smoother visuals.
- 4K Display Output Support: Aimed at enhancing productivity and media consumption through DisplayPort connectivity.
- Improved Brightness and Design: The tablet’s 10.95-inch screen would have been 10% brighter with thinner bezels, maintaining a sleek form factor.
- Upgraded Camera: A 10MP Samsung S5K3K1 sensor for selfies and an 11MP autofocus-enabled rear camera, though still lacking Face Unlock support.
- Bigger Battery: A slightly larger 7,200 mAh battery for extended usage.
- Other Enhancements: Thread support and the Tensor G4 chip with 5G connectivity.
Although the Pixel Tablet 2 as we know it is canceled, sources suggest Google may still have plans for future iterations.
2. Quick Phrases Glitch Troubles Pixel Users
Pixel phone owners are experiencing a frustrating glitch in Google Assistant’s Quick Phrases feature, which lets users perform tasks like silencing alarms or answering calls with simple voice commands like “Stop” or “Answer.”
The Issue:
- Persistent Notifications: Users report that Quick Phrases prompts like “Say Stop” and “Say Answer” refuse to disappear even after the task is completed.
- Lock Screen Intrusion: The notifications appear on the lock screen, obscuring important information like caller IDs.
- Widespread Impact: The glitch affects various Pixel models, including the Pixel 8 and 9 series, across both stable and beta versions of Android 15.
Workarounds:
- Restarting the device often resolves the issue temporarily.
- Disabling certain toggles in the Quick Phrases menu can mitigate the problem.
- Force-stopping and reopening the Google app might also help.
Google is yet to release an official fix, so some users have resorted to disabling Quick Phrases entirely.
3. Google AI Overviews to Get Fact-Checking Boost
Google’s AI-generated overviews, part of its Gemini assistant, are helpful but often require manual fact-checking. Recognizing this, Google is testing a feature to improve transparency by linking directly to sources within AI-generated summaries.
Upcoming Enhancements:
- Linked Sources: Relevant web pages will be directly embedded within AI overviews, making it easier to verify information.
- Expanded Source List: Users can view all references and related content via an expandable menu, a design already seen in Google’s mobile-web AI overviews.
Currently, this feature is in beta testing in Google app version 15.47.28, with no confirmed release date.
4. Gemini Enhances Lock Screen Functionality
Google’s Gemini AI assistant is rolling out a new feature that allows users to make calls and send messages without unlocking their devices.
Details of the Feature:
- How It Works: Found in Gemini Settings > Gemini on Lock Screen, the feature uses the Google Assistant to bypass the unlock screen for outgoing calls and messages.
- Setup Requirements: Users must enable calling and messaging apps within Gemini to activate this functionality.
- Rollout Status: Currently available in Google app version 15.48 beta for select users, with broader availability expected soon.
This feature complements Gemini’s existing capabilities, making it a more versatile assistant.
Conclusion
From the scrapped Pixel Tablet 2 to the ongoing development of Gemini’s features, Google continues to innovate despite occasional setbacks like the Quick Phrases glitch. As AI becomes more integrated into everyday tasks, the company’s focus on accuracy and usability ensures its tools remain valuable to users worldwide.
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