Major added specializations in iPhone 15

Telephoto with 2x options, Improved battery life, wireless charging & roadside assistance via satellite etc.

Dimensions

iPhone 13: 5.78 x 2.82 x 0.3 inches iPhone 15: 5.81 x 2.82 x 0.31 inches

Weight

iPhone 13: 6.14 ounces (174 grams) iPhone 15: 6.02 ounces (171 grams) Quite decreased weight

Display

iPhone 13: 6.1-inch 2532×1170, 460ppi Super Retina XDR OLED display with 1,200 HDR iPhone 15: 6.1-inch 2556×1179, 460ppi Super Retina XDR OLED display with 1,600/2,000 HDR + Dynamic Island

Processor

iPhone 13: A15 Bionic (6-core CPU & 4-core GPU) iPhone 15: A16 Bionic (6-core CPU & 5-core GPU)

Rear camera

iPhone 13: Dual 12MP f/1.6 Main, 12MP f/2.4 Ultra Wide; .5X and 1X zoom, Smart HDR 3 iPhone 15: Dual 48MP f/1.6 Main, 12MP f/2.4 Ultra Wide; .5X, 1X, and 2X zoom; Smart HDR 5

Front camera

iPhone 13: 12MP f/2.2 iPhone 15: 12MP f/1.9

Charging

iPhone 13: Lightning iPhone 15: USB-C, Wireless