For years there has been one major issue with the stock Android. The stock Android does not tell the battery level of the Bluetooth devices. This is quite annoying when rest of OEMs like LG and Samsung are offering the same feature with their skin then why it is not available in stock Android. I remember whenever I switch my Bluetooth headphones from Samsung to my Huawei phone I lose the ability to check the battery level of Bluetooth devices.
In fact, the same feature is also available in different customer ROMs. However, there are rumors suggesting that Google will add the feature to know the battery level of Bluetooth devices. According to a report from XDA developers, Google is working on this new feature. Using an API Android will be able to get the information from the Bluetooth devices. However, there is no new on the official roll out of this feature. We expect that Google will most probably roll out the new feature in the latest Android 8.1.
However, there is one important thing to know that Android will only provide information for the supported devices. Once this feature is available in stock Android then the user will be able to know the battery level of Bluetooth devices in real time.
We expect that this new feature may be rolled out with the launch of new Google Pixel 2. Google Pixel 2 will be the first smartphone to come with this new feature. For now, just keep your fingers crossed and wait for the official announcement.