Apple Watch All-Day Battery Life testing was conducted by Apple in August 2021 using preproduction Apple Watch Series 7 (GPS) and Apple Watch Series 7 (GPS + Cellular), each paired with an iPhone; all devices were tested with prerelease software. My thought is, if battery life were so great, it would be one of the first things advertised by Apple. Instead, they claim the battery life is about the same as iPhone 7. In most cases, battery aging is to blame. Rarely do reviewers visit Apple to replace the battery on their iPhone 7 before benchmarking. Fast charging happens in phases. When your phone is at its lowest charge, more power is directed into the battery because it can accept all that power more easily. As the cell nears a 100% charge If you want an even better battery, consider the iPhone 7 Plus, a battery pack, or another phone. Geekbench 3 Apple iPhone 7 3,495 5,931 Apple iPhone 7 Plus 3,493 5,932 Apple iPhone 6S 2,527 4,402 First, customers who sought an iPhone 7 battery replacement were told that battery life wasn’t the problem, and that the poor performance was a result of memory storage being nearly full. But after returning home and freeing up space on their iPhones, the customers continued to suffer from performance issues. This is when things started to Your iPhone's screen brightness level can have a big impact on battery life. By default, iOS will automatically adjust the display's brightness based on how much light its ambient sensor detects. About iPhone 7 Battery Life Apple promises that the iPhone 7 has up to 2 hours longer battery life than the iPhone 6S. This includes up to 14 hours of 3G talk time, 10 days of standby, 12 hours of internet use on both 3G and LTE, 14 hours of internet use on Wi-Fi, 13 hours of video playback or 40 hours of audio playback. This one is easy; the Samsung Galaxy S7 trounces the iPhone 7 when it comes to battery life. The Samsung Galaxy S7 features a non-removable lithium-ion battery, with a cell capacity of 3,000mAh. How Long Does a 70% Battery Status Last on iPhone? That number is for information only. There is no one-size-fits-all here. For example, an iPhone with a battery life of 70 or 80 percent can still be onall daywhen you are not watching videos or playing games. Big phones need big batteries, and the iPhone 7 Plus has a whopping 2,900 mAh inside - nearly one-third bigger than the battery in the iPhone 7. We’ve never had battery life problems during even xJJoP0.