After the first reviews of the iPhone 12 and iPhone 12 Pro appeared yesterday, a new report by Tom & amp; 39; s guide reveals the rate at which 5g battery life is being reduced. The report outlines a test in which the iPhone continuously browses the web at 150 nits of screen brightness, opening a new website every 30 seconds until the battery runs out. The tests were conducted on iPhone 12 and 12 pro, which were logged into 4G and 5g networks respectively. < / P > < p > with 5g, it took 8 hours and 25 minutes for the iPhone 12 to run out of battery, while it took 9 hours and 6 minutes for the iPhone 12 pro. When using 4G, the iPhone 12 and 12 Pro perform better, with 10 hours and 23 minutes and 11 hours and 24 minutes respectively. This means that the iPhone 12 and iPhone 12 Pro have about 20% faster battery life at 5g. This is similar to the battery performance of Android and Android. < / P > < p > I believe that the battery capacity of all iPhone 12 products has been reduced this year. Although it is known that 5g will probably consume more battery life, the extent of this is not clear. < / P > < p > Apple has added & quot; intelligent data mode & quot; into iPhone 12 and iPhone 12 pro, which selectively turns off 5g when 5g may not be needed, which may be the reason for the change of battery test structure. For example, when streaming music is played with the screen off, it is reported that the intelligent data mode will turn off 5g and tend to fall back to 4G networks. Global Tech