The iPhone 12 Pro Max may have a smaller battery but more RAM than its predecessor

Apple's iPhone 12 and iPhone 12 Pro have reached the reviewers' hands, and while most reviews are fairly positive, no one has been praising battery life very much. 

There are two more iPhone 12 variants coming soon: The 5.4-inch iPhone 12 mini, and the massive, 6.7-inch iPhone 12 Pro Max. And out of those two, it's the Max that should have the most battery life, as it will likely have the biggest battery — I have an iPhone 11 Pro Max and I've been very happy with its battery, which typically lasts me for one-and-a-half days of heavy usage. 

However, a regulatory filing published by China's TENAA (spotted by MacRumors), indicates that the iPhone 12 Pro Max will actually have a significantly smaller battery than the 11 Pro Max, with a capacity of 3,687mAh vs. 3,969mAh on the older model.  Read more...