A comprehensive battery test by CNET has named the iPhone 18 Pro Max the top-performing smartphone in terms of power longevity—surpassing every Android contender in the comparison. Two other iPhone models also scored exceptionally well, placing in the top ranks alongside some Android devices.
How the Test Worked and Who Won
CNET evaluated 32 recent smartphones using a two-part benchmark. First, each device streamed video for three hours straight. Then they underwent a 45-minute stress test involving video calls, gaming, social media browsing, and other tasks—each starting with a full battery. Rankings were based on how much battery remained after both tests, averaged. The goal was to approximate real-world usage patterns. The same protocol was applied to all phones.
Emerging as the clear winner was the iPhone 18 Pro Max. It was followed closely by iPhone 17 and iPhone 18 Pro, which tied for second. Those two shared the spot with the Motorola Razr (2026) and OnePlus 15, both Android phones that matched their scores. Further down the ranking, the Samsung Galaxy Z Fold 8 placed third. Other notable names included the iPhone 17E, iPhone Duo, Motorola Razr Ultra (2026), and the Samsung Galaxy S26 Ultra.
Battery Capacity vs. Real Battery Life
Interestingly, the capacity (milliamp hours, mAh) was not always predictive of performance. For example, while the OnePlus 15 has a large 7,300 mAh battery, it didn’t unseat the iPhone 18 Pro Max—but still managed a tie for second. The 18 Pro Max itself has a 5,567 mAh battery. Other high-capacity Androids scored well but generally lagged behind the top iPhones once real-use conditions were simulated.
This isn’t the first time Apple’s phones have distinguished themselves in battery life. What’s notable here is how well the newer models—the 18 Pro Max in particular—handle mixed usage, where power draw varies across tasks rather than staying constant. The ability to maintain higher remaining charge after demanding tasks speaks to both hardware efficiencies and possibly software power optimizations.
The test adds context to recent debates around battery specs vs. actual endurance. A phone might boast a large battery, but what users care about is how long the device lasts under everyday stress—streaming, multitasking, and background activity. In many cases, Apple’s integration of hardware and software seems to give its phones an edge.
As for Android manufacturers, the study shows promise: several models tied with iPhones in the standings, especially under demanding conditions. But for now, none are reclaiming the crown.
Looking forward, what may be worth watching is how these rankings shift as new models arrive, especially with improvements in chip efficiency, display tech, and battery chemistry. For now, if battery life under real-world usage is high on your list, the iPhone 18 Pro Max might be your best bet.
