Which phone is lighter?

iPhone 15 is lighter at 171 g versus iPhone 17 Pro at 206 g (35 g difference).

Which phone is thinner?

iPhone 15 is thinner at 7.8 mm compared with iPhone 17 Pro at 8.75 mm (0.95 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 Pro (71.9 × 150 × 8.75 mm, 206 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 Pro at 71.9 mm, 150 mm, and 206 g.

Device Size Comparison

iPhone 15 vs iPhone 17 Pro

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Comparison Summary

iPhone 17 Pro is slightly wider than iPhone 15 (71.9 mm vs 71.6 mm), iPhone 17 Pro is significantly heavier (206 g vs 171 g), and iPhone 17 Pro is noticeably thicker (8.75 mm vs 7.8 mm). iPhone 17 Pro is 0.3 mm wider and 2.4 mm taller than iPhone 15, making iPhone 17 Pro slightly larger overall,...

Winner Cards

Smaller body

iPhone 15

iPhone 15 (71.6 × 147.6 mm) vs iPhone 17 Pro (71.9 × 150 mm).

Lighter weight

iPhone 15

iPhone 15 (171 g) vs iPhone 17 Pro (206 g), 35 g lighter.

Thinner design

iPhone 15

iPhone 15 (7.8 mm) vs iPhone 17 Pro (8.75 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 Pro

iPhone 17 Pro is 0.3 mm wider and 2.4 mm taller than iPhone 15 (71.9 × 150 mm vs 71.6 × 147.6 mm).

Dimensions Table

Dimension	iPhone 15	iPhone 17 Pro	Difference
Width	71.6 mm	71.9 mm	+0.3 mm
Height	147.6 mm	150 mm	+2.4 mm
Thickness	7.8 mm	8.75 mm	+0.95 mm
Weight	171 g	206 g	+35 g

Real-World Feel

One-handed use feels similar on both phones because width and height are close (71.6 × 147.6 mm vs 71.9 × 150 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.
iPhone 15 (171 g) feels noticeably lighter during extended one-handed use than iPhone 17 Pro (206 g), a 35 g difference that adds up over time.
iPhone 17 Pro takes up more desk and bag space at 71.9 × 150 × 8.75 mm, while iPhone 15 leaves more room for cases, chargers, and other items.

Which is Bigger?

Overall size: iPhone 17 Pro is 0.3 mm wider and 2.4 mm taller than iPhone 15, making iPhone 17 Pro slightly larger overall.
Width: iPhone 17 Pro is wider (71.9 mm vs 71.6 mm, +0.3 mm).
Height: iPhone 17 Pro is taller (150 mm vs 147.6 mm, +2.4 mm).

Weight Comparison

iPhone 17 Pro weighs 206 g and iPhone 15 weighs 171 g — a difference of 35 g. iPhone 17 Pro is 20.5% heavier than iPhone 15.

Thickness Comparison

iPhone 17 Pro is 8.75 mm thick and iPhone 15 is 7.8 mm thick (+0.95 mm). iPhone 17 Pro is the thicker device in hand.

FAQ

Which phone is bigger?: iPhone 17 Pro is 0.3 mm wider and 2.4 mm taller than iPhone 15 (71.9 × 150 mm vs 71.6 × 147.6 mm).
Which phone is lighter?: iPhone 15 is lighter at 171 g versus iPhone 17 Pro at 206 g (35 g difference).
Which phone is thinner?: iPhone 15 is thinner at 7.8 mm compared with iPhone 17 Pro at 8.75 mm (0.95 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 Pro (71.9 × 150 × 8.75 mm, 206 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 Pro at 71.9 mm, 150 mm, and 206 g.

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