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Android phones collect 20 times more user data than similar iPhones From Trinity University Dublin, Ireland

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A study by a computer science professor at Trinity College Dublin in Dublin, Ireland, found that Android phones collect 20 times more user data than similar iPhones.

According to researcher and chairman of the college’s computer systems, Doug Leith, IOS and Android phones are constantly collecting data and sending it back to apple and Google, respectively. The behavior of information mobile phone starts from inserting SIM card into smart phone, including the interaction between hardware and application.

The data collection process may still run when the user is not logged in, chooses to exit data collection in privacy settings, and the mobile phone is idle. Leith found that IOS shares information about IMEI, hardware serial number, SIM serial number, phone number, device ID (including UDID and AD ID), location, telemetry, cookie, local IP address and nearby Wi Fi MAC address. Android sends similar data and adds the Wi Fi MAC address of the device, but does not include the location information of the mobile phone, local IP address and nearby Wi Fi MAC address.

Leith’s test conditions are: after the mobile phone is restored to the factory settings, it will be tested for the first time, when the mobile phone is idle, it will insert or remove the SIM card, check the settings, enable or disable the location, and the data collected for the first time when the user logs in to the own app store.

The test products are Google pixel 2 running Android 10 and an unknown iPhone running IOS 13.6.1. However, in order to monitor the network connection, the iPhone has broken the prison.

The most striking difference, says Leith, is the amount of information collected. According to his research, Android sent about 1MB of data to Google when it started, while IOS sent about 42kb of data to apple. When the phone is idle, Android sends another 1MB of memory every 12 hours, while IOS sends 52kb. In the United States, Google estimates that it will get 1.3tb of data from its (all) users every 12 hours, while Apple will receive 5.8GB of data in the same period.

“At present, there is almost no choice to prevent this kind of data sharing,” according to Leith, which means that users must accept the collected data as long as they use their mobile phones.

As a result, Google responded that Leith’s method is flawed, and they believe that data collection is the core function of any connected device. A spokesman questioned the effectiveness of the experiment, pointing out that the experiment could not capture data such as UDP / quic traffic. (quic is a set of UDP based transport protocol launched by Google to ensure reliability and reduce network delay at the same time.)

We find that researchers have defects in the method of measuring the amount of data, and disagree with the paper that Android devices share 20 times more data than iPhone. According to our research, these results differ by an order of magnitude, and we shared our concerns about testing methods with researchers before publishing the paper.

The study provides a big overview of how smartphones work. Hyundai regularly sends basic data to car manufacturers about car parts, their safety status and service schedules, and mobile phones work in a very similar way. The report details these communications, which help to ensure that IOS or Android Software is up-to-date, services can run as expected, and phone / security and other functions can work effectively.

More reading: the service life of iPhone is three years, and that of Android is two years. Priceonomics: the survey shows that the resale price of iPhone is 63% after one year’s use, and that of Android is 46%. Emarketer: Android is expected to surpass iPhone in 2012. Nelson: Android phones account for 38% of the U.S. smartphone market. Cambridge University: 600 million Android phones in the world have privacy security System reset can’t completely erase data interpretation: Samsung, HTC, Apple’s grudge Google: China’s urban smartphone penetration rate reaches 35% NPD: U.S. users favor large screen smart phones asymco: U.S. lumia users are about 330000 iSuppli:2012 Android phones will surpass iPhone Android authority in the global market in 2017 Samsung note8 ranking first big data: Q3 China’s Android smartphone report in 2019 an Tu Tu: performance price list of Android mobile phones in February 2017 Google: more than 600 Android mobile phones launched in 2015, one out of every 20 Android mobile phones is root – information chart

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