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Apple's iPhone 18 Pro Lineup to Feature Significant Battery Life Gains

WireByte Staff · July 6, 2026

Apple's upcoming iPhone 18 Pro and iPhone 18 Pro Max models are expected to have notable differences in battery life, with the Pro Max model boasting nearly a 10% larger battery compared to its predecessor. The devices will be unveiled in September, with the Pro Max model reportedly featuring a 5,567mAh battery in the U.S. and a 5,391mAh battery in China.

Key points

  • Apple's iPhone 18 Pro Max is expected to have a 5,567mAh battery in the U.S. and a 5,391mAh battery in China, a nearly 10% increase from the iPhone 17 Pro Max.
  • The iPhone 18 Pro will have a 4,288mAh battery in the U.S. and a 4,056mAh battery in China, an increase of less than 1% from the iPhone 17 Pro.
  • The devices will be unveiled in September, with the Pro Max model reportedly featuring a larger battery to accommodate its increased size and weight.
  • The main 48-megapixel Fusion camera is rumored to get variable aperture on both the iPhone 18 Pro and iPhone 18 Pro Max.

Apple's upcoming iPhone 18 Pro and iPhone 18 Pro Max models are generating significant buzz due to their expected battery life gains. According to recent leaks, the iPhone 18 Pro Max will feature a 5,567mAh battery in the U.S. and a 5,391mAh battery in China, a nearly 10% increase from the iPhone 17 Pro Max. In contrast, the iPhone 18 Pro will have a 4,288mAh battery in the U.S. and a 4,056mAh battery in China, an increase of less than 1% from the iPhone 17 Pro.

The significant difference in battery life between the two models is likely due to the Pro Max model's larger size and weight. This is not the first time Apple has given the Pro Max model a special advantage, and it seems that the company is committed to making the larger model a more compelling option for customers.

The main 48-megapixel Fusion camera is rumored to get variable aperture on both the iPhone 18 Pro and iPhone 18 Pro Max. While the Pro Max model will remain larger and heavier than the Pro, the devices should be identical beyond that and the bigger gap in battery life.

The iPhone 18 Pro and iPhone 18 Pro Max are expected to be unveiled in September, and it will be interesting to see how these new features and improvements affect the market. Will the larger battery life and improved camera capabilities make the Pro Max model a more attractive option for customers, or will the Pro model remain the more popular choice? Only time will tell.

Sources

WireByte Staff — Editorial Team

The WireByte editorial team synthesises technology news from multiple primary sources, verifies the facts, and links every source. Articles are produced with AI assistance and reviewed under our editorial policy.