iPhone 18 Pro Battery Leak Hints at Apple’s Biggest Endurance Upgrade Yet – Larger 5,100mAh Cell, A20 Pro Efficiency and 2-Day Use Rumors
Publish Date: 2026-03-31 23:27:00
Source Domain: gulfnews.com
Side-by-side comparison
Here’s a comparison of the rumoured iPhone 18 Pro Max battery against its main 2026 flagship competitors (Samsung Galaxy S26 Ultra and Google Pixel 11 Pro / Pro XL), based on the latest leaks and supply-chain reports as of early April 2026.
All figures remain unconfirmed until official launches.
Raw battery bapacity
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iPhone 18 Pro Max: 5,100–5,200 mAh (international models); ~5,000 mAh for China-specific variant. This marks Apple’s largest battery ever, up from the iPhone 17 Pro Max’s ~5,088 mAh. The device may be slightly thicker to accommodate it. forbes.com
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Samsung Galaxy S26 Ultra: Most consistent leaks point to 5,000 mAh (same as recent predecessors), though some earlier rumors suggested a modest bump to 5,200 mAh. Samsung has historically capped Ultra models around this figure for years. tomsguide.com
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Google Pixel 11 Pro / Pro XL: Expected to stay around 4,870–5,200 mAh (similar to Pixel 10 series). No major capacity leap is widely rumored; focus is reportedly on efficiency tweaks and possible removable battery concepts in some variants. phonearena.com
Winner on paper (capacity): iPhone 18 Pro Max edges ahead with the potential 5,200 mAh ceiling.
Efficiency & real-world endurance
Apple’s strength has always been optimisation, instead of raw firepower.
The iPhone 18 Pro Max pairs its bigger cell with the A20 Pro chip on TSMC’s advanced 2nm process and Apple’s first in-house C2 5G modem.
