The iPhone 11 Pro Max has a 25% larger battery than last year’s models (via MacRumors). Filings submitted to China’s Technology’s Telecommunication Equipment Certification Center (TENAA) contained the comparison data.
iPhone 11 Bigger Battery and 4GB of RAM
According to the documents that iPhone 11 Pro Max has a 3,969 mAh battery. That is compared to a 3,174 mAh battery in the 2018 iPhone XS Max. The iPhone 11 Pro has a 3,046 mAh battery, while the standard iPhone 11 has a 3,226 mAh battery. Furthermore, all iPhone 11 devices have 4GB of RAM. Last year’s XS and XS Max has 4GB but the XR had only 3GB.
Apple does not disclose iPhones’ battery capacities or RAM configurations. However, these are legal filings and considered reliable. Apple did say that the iPhone 11 battery lasts for an hour longer than the iPhone XR.