Android 15 Beta 4 Introduces New Diagnostics Tool, Charging Optimization, and Key Improvements

Google’s Android 15 Beta 4, expected to be the final beta before the stable release, has been officially rolled out, bringing several notable updates and enhancements. Released on Thursday, July 18, this update fixes numerous developer-reported and general issues, including the transition from legacy PNG-based emoji fonts to vector-based emoji, marking a significant step in the platform’s evolution.

Major Updates and New Features

Device Diagnostics Tool

One of the standout features in Android 15 Beta 4 is the new device diagnostics tool, which significantly improves the accessibility and comprehensiveness of battery and storage health information compared to the previous Diagnostics app. This tool is conveniently located at the bottom of the System Settings menu, making it easier for users to access critical device health data.

The diagnostics tool comprises two main components:

Component Health: This feature allows users to perform manual tests to evaluate their device’s battery and storage health. It also includes display and touch tests to help identify potential defects like dead pixels or unresponsive touch areas.

Evaluation Mode: This mode enables users to assess secondary devices by generating a QR code that triggers the same tests as the Component Health tool. This can be particularly useful for diagnosing issues on non-Pixel devices as well.

Charging Optimization Feature

Android 15 Beta 4 introduces a charging optimization feature that prevents Pixel devices from charging beyond 80%, similar to the Optimized Battery Charging feature found on iPhones. This addition aims to extend battery lifespan and maintain overall battery health.

Bug Fixes and Improvements

The latest beta release addresses numerous bugs and performance issues. Notable fixes include:

• Preventing Pixel 6 devices from being bricked if reset too soon after an update.
• Ensuring that Pixel Fold users can complete Face Unlock enrollment even if the device is folded or unfolded during the process.
• Resolving contrast issues in Quick Settings tiles and restoring app notification settings after a device backup.

Additionally, Digital Car Key now supports low latency scans when running in the foreground, and the head-tracking codec detects transport support in the LE Audio stack. Google has also fixed issues related to Bluetooth pairing requests and Android Virtual Device launch failures in embedded mode.

Vector-Based Emoji

In line with Android 15’s focus on modernization, the update removes legacy PNG-centric emojis in favor of vector graphics. This change, first introduced in Android 13, ensures that emojis are infinitely scalable without pixelation, providing a cleaner and more consistent visual experience.

Platform Stability and Developer Preparations

Android 15 Beta 4 marks the second “Platform Stability” release, signaling to developers that they can start preparing their apps for full integration with the upcoming Android 15 OS. With this stability milestone, Google is fine-tuning the final details to ensure a smooth and robust public launch.

Android 15 Beta 4 is a crucial update that brings essential enhancements and bug fixes, paving the way for the stable release of Android 15. The new device diagnostics tool, charging optimization feature, and transition to vector-based emojis highlight Google’s commitment to improving user experience and device longevity. As developers begin to finalize their apps for the new OS, users can look forward to a refined and feature-rich Android 15.