Device Size Comparison

iPhone 17 Air vs iPhone SE (3rd generation)

Size Comparison Summary

iPhone 17 Air measures 74.7 × 156.2 × 5.64 mm and weighs 165 g. iPhone SE (3rd generation) measures 67.3 × 138.4 × 7.3 mm and weighs 144 g. By overall front-face area, iPhone 17 Air is larger than iPhone SE (3rd generation) (about 2353.8 mm² difference). iPhone 17 Air is 21 g heavier than iPhone SE (3rd generation). All figures use official millimeter dimensions.

Dimensions Table

Dimension	iPhone 17 Air	iPhone SE (3rd generation)	Difference
Width	74.7 mm	67.3 mm	-7.4 mm
Height	156.2 mm	138.4 mm	-17.8 mm
Thickness	5.64 mm	7.3 mm	+1.66 mm
Weight	165 g	144 g	-21 g

Which is Bigger?

Overall size (width × height): iPhone 17 Air has the larger footprint at 74.7 × 156.2 mm vs 67.3 × 138.4 mm (+2353.82 mm² area).
Width: iPhone 17 Air is wider (74.7 mm vs 67.3 mm, +7.4 mm).
Height: iPhone 17 Air is taller (156.2 mm vs 138.4 mm, +17.8 mm).

Weight Comparison

iPhone 17 Air weighs 165 g and iPhone SE (3rd generation) weighs 144 g — a difference of 21 g. iPhone 17 Air is 14.6% heavier than iPhone SE (3rd generation).

Thickness Comparison

iPhone SE (3rd generation) is 7.3 mm thick and iPhone 17 Air is 5.64 mm thick (+1.66 mm). iPhone SE (3rd generation) is the thicker device in hand.

FAQ

Which is bigger, iPhone 17 Air or iPhone SE (3rd generation)?: iPhone 17 Air has the larger overall footprint (74.7 × 156.2 mm) compared with iPhone SE (3rd generation) (67.3 × 138.4 mm).
How much heavier is iPhone 17 Air than iPhone SE (3rd generation)?: iPhone 17 Air weighs 165 g and iPhone SE (3rd generation) weighs 144 g — a difference of 21 g.
Which device is thinner, iPhone 17 Air or iPhone SE (3rd generation)?: iPhone 17 Air is thinner at 5.64 mm vs 7.3 mm for iPhone SE (3rd generation).
What is the width difference between iPhone 17 Air and iPhone SE (3rd generation)?: iPhone 17 Air is 74.7 mm wide and iPhone SE (3rd generation) is 67.3 mm wide (-7.4 mm).
Can I compare iPhone 17 Air and iPhone SE (3rd generation) 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 17 Air and iPhone SE (3rd generation) in the comparison tool