You may not know these updates! Android 9.0 has these interesting features

Google has released the latest generation of Android system, Android 9.0, also known as Android Pie.

This time, Android has finally upgraded to a large digital version number, and the magnitude of the update is obvious to all. The first impression of friends who have flashed the phone is that the interface has changed, and many function settings have also become more user-friendly.

However, you may not fully understand some of the new features in Android 9.0, and these new features are rarely mentioned in the media. Today, let's take a look at what other interesting new features Android 9.0 has!

Random simulated mac address

We know that each network device has a MAC address, which is its hardware identification code in the network.

Through the MAC address, the network can be managed. For example, a blacklist can be created for the MAC in the router to prohibit certain devices from connecting to WiFi, etc. In Android 9.0, the function of random simulated MAC address is added, which can break many restrictions.

For example, in a university dormitory, many friends will share a router, and some unscrupulous roommates who manage the router may set your mobile phone to a speed limit in the router. But the router is bought by someone else, and you can do nothing about it.

But if you use Android 9.0 and randomly simulate MAC addresses, you will not be able to limit your phone's Internet speed based on Mac.

Of course, this is not the original intention of this feature. This new feature of Android 9.0 is mainly to hide your MAC address to prevent information tracking and protect user privacy. In Android 9.0, you can enable this feature in the developer options.

WiFi distance measurement and positioning

Using mobile phones for positioning has become a daily routine for everyone, but there is a shortcoming in current mobile phone positioning, which is that it is quite difficult to position indoors.

Indoors, it is difficult for mobile phones to receive GPS signals, and they can only rely on base stations and gyroscopes to detect movement to know their approximate location. In Android 9.0, mobile phones have an additional indoor positioning method, which is to use WiFi positioning.

Android 9.0 has added the function of measuring distance using WiFi. This is mainly because Google has added support for IEE 802.11mc, which is a specification for measuring distance of wireless networks.

Using the characteristics of WiFi RTT, the mobile phone can measure the time it takes to move between different hotspots and calculate the specific location.

Moreover, this feature does not require you to be connected to WiFi. As long as there are 3 or more WiFi hotspots around, the positioning accuracy can reach one or two meters, which is very powerful.

This new feature of Android 9.0 is of great significance to smart homes. For example, when you enter the bathroom, the lights can be turned on automatically for you without installing complicated sensors.

At the same time, positioning in complex shopping malls is not a problem at all - shopping malls are densely populated with WiFi hotspots, which perfectly meets the conditions required for positioning.

From now on, in a huge shopping mall like Guangzhou Flower City Plaza, which lacks signboards and is located underground, you will never walk through a maze again if you carry an Android 9.0 phone.

Wireless connection to Android Auto

As CarPlay is rolled out, many friends have become accustomed to using their mobile phones to connect to the car's computer, allowing some of the phone's functions to be projected into the car, and the car can also use the phone's functions.

Using an iPhone, you can connect to the car and use the CarPlay system. Using an Android, you can connect to the car and use Android Auto.

Generally speaking, a data cable is required to connect to the car computer, and wireless connection solutions for CarPlay have appeared on the market. Now Android 9.0 also supports wireless connection to Android Auto.

Previously, Google has enabled Pixel and Nexus phones to support wireless connection to Android Auto; in Android 9.0, all Android devices can wirelessly connect to Android Auto.

Many friends may say that Android Auto is relatively rare in China, and what does this function seem to be of any use?

In fact, many cars just hide this function. If you enter the engineering mode of the car computer, you may be able to activate Android Auto. You can search the Internet for specific methods for different models.

Support 5 Bluetooth audio devices connected simultaneously

With the popularity of smart homes and the trend of eliminating headphone jacks, Bluetooth audio devices have become more and more common. Many people have more than one Bluetooth audio device, and Android 9.0 has added the feature of connecting multiple Bluetooth audio devices at the same time to meet this trend.

In previous Android systems, only two Bluetooth audio devices could be connected at most, but in Android 9.0 this limit was increased to five.

However, in Android 9.0, you cannot use 5 Bluetooth devices to play audio at the same time. After all, the bandwidth of Bluetooth is there. After connecting these Bluetooth devices, you can switch quickly without re-matching and connecting.

In Android 9.0, you can find the relevant functions of this feature in the developer options. The default option is to only connect 1 device. If you find that the number of Bluetooth devices you can connect to has not changed after upgrading the system, remember to enable this feature.

Support DNS over TLS connection/force HTTPS

If you are familiar with the Internet, you should know that many of the commonly used network connections have major security issues.

For example, the DNS mechanism. When we visit a website, we need a DNS server to resolve the domain name into an IP address, but the connection to the DNS server is often not encrypted, so the DNS is likely to be hijacked.

You enter the correct URL but are redirected to other websites; for example, in ordinary HTTP, the content of the web page is not encrypted and it is easy for someone with ulterior motives to insert other content such as advertisements.

In Android 9.0, the system has built-in support for DNS over TLS. If the DNS server supports TLS connection, you can connect to the DNS server in an encrypted manner.

Android 9.0 also forces the use of HTTPS to connect to web pages. As long as the site supports HTTPS, an encrypted connection will be used. In this way, the number of cases where a carrier advertisement suddenly pops up when surfing the Internet on a mobile phone is greatly reduced.

Summarize

In general, the Android 9.0 update is indeed very sincere. Under the Project Treble mechanism, many devices have actually been upgraded to Android 9.0. I hope that major manufacturers can follow up and upgrade as soon as possible to bring users a better experience.

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