Which phone is lighter?

iPhone 15 is lighter at 171 g versus iPhone 17 at 177 g (6 g difference).

Which phone is thinner?

iPhone 15 is thinner at 7.8 mm compared with iPhone 17 at 7.95 mm (0.15 mm difference).

Which phone is easier to carry?

iPhone 15 is easier to carry with a smaller overall body size (71.6 × 147.6 × 7.8 mm, 171 g) than iPhone 17 (71.5 × 149.6 × 7.95 mm, 177 g).

Which phone is better for one-handed use?

iPhone 15 is better for one-handed use with a 71.6 mm width, 147.6 mm height, and 171 g weight versus iPhone 17 at 71.5 mm, 149.6 mm, and 177 g.

Device Size Comparison

iPhone 15 vs iPhone 17

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Comparison Summary

iPhone 15 is slightly wider than iPhone 17 (71.6 mm vs 71.5 mm), iPhone 17 is slightly heavier (177 g vs 171 g), and iPhone 17 is slightly thicker (7.95 mm vs 7.8 mm). iPhone 17 is 0.1 mm wider and 2 mm taller than iPhone 15, making iPhone 17 slightly larger overall, while iPhone 15 may feel easi...

Winner Cards

Smaller body

iPhone 15

iPhone 15 (71.6 × 147.6 mm) vs iPhone 17 (71.5 × 149.6 mm).

Lighter weight

iPhone 15

iPhone 15 (171 g) vs iPhone 17 (177 g), 6 g lighter.

Thinner design

iPhone 15

iPhone 15 (7.8 mm) vs iPhone 17 (7.95 mm).

Pocketability

iPhone 15

iPhone 15 has a smaller overall body size for pocket carry (71.6 × 147.6 × 7.8 mm).

Larger overall size

iPhone 17

iPhone 17 is 0.1 mm wider and 2 mm taller than iPhone 15 (71.5 × 149.6 mm vs 71.6 × 147.6 mm).

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

Real-World Feel

One-handed use feels similar on both phones because width and height are close (71.6 × 147.6 mm vs 71.5 × 149.6 mm).
iPhone 15 slides into pockets more comfortably at 7.8 mm thick, and iPhone 15 has the smaller overall body for vertical pocket storage.
Long browsing or video calls feel nearly identical; iPhone 17 is only 6 g heavier than iPhone 15 (177 g vs 171 g).
iPhone 17 takes up more desk and bag space at 71.5 × 149.6 × 7.95 mm, while iPhone 15 leaves more room for cases, chargers, and other items.

Which is Bigger?

Overall size: iPhone 17 is 0.1 mm wider and 2 mm taller than iPhone 15, making iPhone 17 slightly larger overall.
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 phone is bigger?: iPhone 17 is 0.1 mm wider and 2 mm taller than iPhone 15 (71.5 × 149.6 mm vs 71.6 × 147.6 mm).
Which phone is lighter?: iPhone 15 is lighter at 171 g versus iPhone 17 at 177 g (6 g difference).
Which phone is thinner?: iPhone 15 is thinner at 7.8 mm compared with iPhone 17 at 7.95 mm (0.15 mm difference).
Which phone is easier to carry?: iPhone 15 is easier to carry with a smaller overall body size (71.6 × 147.6 × 7.8 mm, 171 g) than iPhone 17 (71.5 × 149.6 × 7.95 mm, 177 g).
Which phone is better for one-handed use?: iPhone 15 is better for one-handed use with a 71.6 mm width, 147.6 mm height, and 171 g weight versus iPhone 17 at 71.5 mm, 149.6 mm, and 177 g.

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