How much energy is inside a phone battery?
mAh is the familiar label, but watt-hours reveal the energy a power bank must replace. Battery energy figures are sourced; UK retail, warranty and availability are separate checks.
Apple iPhone
iPhone 16 Pro: 13.942Wh · 3,582mAh; iPhone 15: 12.98Wh · 3,349mAh; iPhone 15 Plus: 16.95Wh · 4,383mAh; iPhone 15 Pro: 12.7Wh · 3,274mAh; iPhone 15 Pro Max: 17.1Wh · 4,422mAh; iPhone 14: 12.68Wh · 3,279mAh; iPhone 14 Pro Max: 16.68Wh · 4,323mAh; iPhone 13: 12.41Wh · 3,227mAh; iPhone 13 mini: 9.34Wh · 2,406mAh; iPhone 13 Pro: 11.97Wh · 3,095mAh; iPhone 13 Pro Max: 16.75Wh · 4,352mAh
Google Pixel
Pixel 10: 18.86Wh · 4,835mAh; Pixel 10 Pro XL: 19.76Wh · 5,079mAh; Pixel 9: 17.77Wh · 4,558mAh; Pixel 9 Pro: 17.77Wh · 4,558mAh; Pixel 9 Pro XL: 19.22Wh · 4,942mAh; Pixel 9a: 19.5Wh · 5,000mAh; Pixel 8: 17.44Wh · 4,485mAh; Pixel 8 Pro: 19.25Wh · 4,950mAh; Pixel 8a: 17.04Wh · 4,404mAh; Pixel 7a: 16.55Wh · 4,300mAh
Samsung Galaxy
Galaxy S25 Ultra: 18.84Wh · 4,855mAh; Galaxy S24: 15.06Wh · 3,880mAh; Galaxy S24 Ultra: 18.84Wh · 4,855mAh; Galaxy S24+: 18.45Wh · 4,755mAh; Galaxy S23: 14.68Wh · 3,785mAh; Galaxy S23 Ultra: 18.83Wh · 4,855mAh; Galaxy S23+: 17.71Wh · 4,565mAh
United Kingdom market status
The record above is shared technical content from the international edition, not proof of a United Kingdom retail offer. For the any product listed in this library, confirm the exact 230V/50Hz Type G execution, supplied mains lead and socket layout, model suffix, UK certification, warranty and local support before purchase. No UK price in pounds sterling, stock, retailer, warranty or affiliate offer is verified yet, and no buying link is active.
UK status: commerce closed. No verified retailer, price, stock, warranty or affiliate offer is active until final technical and native editorial review.