Device Size Comparison

iPhone 15 vs iPhone 17

Size Comparison Summary

iPhone 15 measures 71.6 × 147.6 × 7.8 mm and weighs 171 g. iPhone 17 measures 71.5 × 149.6 × 7.95 mm and weighs 177 g. By overall front-face area, iPhone 17 is larger than iPhone 15 (about 128.2 mm² difference). iPhone 17 is 6 g heavier than iPhone 15. All figures use official millimeter dimensions.

Dimensions Table

Dimension	iPhone 15	iPhone 17	Difference
Width	71.6 mm	71.5 mm	-0.1 mm
Height	147.6 mm	149.6 mm	+2 mm
Thickness	7.8 mm	7.95 mm	+0.15 mm
Weight	171 g	177 g	+6 g

Which is Bigger?

Overall size (width × height): iPhone 17 has the larger footprint at 71.5 × 149.6 mm vs 71.6 × 147.6 mm (+128.24 mm² area).
Width: iPhone 15 is wider (71.6 mm vs 71.5 mm, +0.1 mm).
Height: iPhone 17 is taller (149.6 mm vs 147.6 mm, +2 mm).

Weight Comparison

iPhone 17 weighs 177 g and iPhone 15 weighs 171 g — a difference of 6 g. iPhone 17 is 3.5% heavier than iPhone 15.

Thickness Comparison

iPhone 17 is 7.95 mm thick and iPhone 15 is 7.8 mm thick (+0.15 mm). iPhone 17 is the thicker device in hand.

FAQ

Which is bigger, iPhone 15 or iPhone 17?: iPhone 17 has the larger overall footprint (71.5 × 149.6 mm) compared with iPhone 15 (71.6 × 147.6 mm).
How much heavier is iPhone 17 than iPhone 15?: iPhone 17 weighs 177 g and iPhone 15 weighs 171 g — a difference of 6 g.
Which device is thinner, iPhone 15 or iPhone 17?: iPhone 15 is thinner at 7.8 mm vs 7.95 mm for iPhone 17.
What is the width difference between iPhone 15 and iPhone 17?: iPhone 15 is 71.6 mm wide and iPhone 17 is 71.5 mm wide (-0.1 mm).
Can I compare iPhone 15 and iPhone 17 visually?: Yes. Use the Sizology comparison tool to overlay or place both devices side by side at true millimeter scale with official dimensions.

Related Comparisons

Open iPhone 15 and iPhone 17 in the comparison tool