Which phone is bigger?

iPhone 15 matches iPhone 16 on width and height (71.6 × 147.6 mm vs 71.6 × 147.6 mm).

Which phone is lighter?

iPhone 16 is lighter at 170 g versus iPhone 15 at 171 g (1 g difference).

Which phone is easier to carry?

Both phones are similarly easy to carry. iPhone 15 is 71.6 × 147.6 × 7.8 mm and 171 g, while iPhone 16 is 71.6 × 147.6 × 7.8 mm and 170 g.

Which phone is better for one-handed use?

iPhone 16 is better for one-handed use with a 71.6 mm width, 147.6 mm height, and 170 g weight versus iPhone 15 at 71.6 mm, 147.6 mm, and 171 g.

Device Size Comparison

iPhone 15 vs iPhone 16

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Comparison Summary

Both devices share the same 71.6 mm width, iPhone 15 is slightly heavier (171 g vs 170 g). iPhone 15 matches iPhone 16 on width and height, making iPhone 15 slightly larger overall, while iPhone 16 may feel easier to carry and use one-handed.

Winner Cards

Smaller body

Tie

Both measure 71.6 mm wide and 147.6 mm tall.

Lighter weight

iPhone 16

iPhone 16 (170 g) vs iPhone 15 (171 g), 1 g lighter.

Thinner design

Tie

Both are 7.8 mm thick.

Pocketability

Tie

Similar combined width, height, and thickness for pocket carry.

Larger overall size

Tie

Both measure 71.6 mm wide and 147.6 mm tall.

Dimensions Table

Dimension	iPhone 15	iPhone 16	Difference
Width	71.6 mm	71.6 mm	0 mm
Height	147.6 mm	147.6 mm	0 mm
Thickness	7.8 mm	7.8 mm	0 mm
Weight	171 g	170 g	-1 g

Real-World Feel

One-handed use feels similar on both phones because width and height are close (71.6 × 147.6 mm vs 71.6 × 147.6 mm).
Pocket carry feels comparable — both have similar width, height, and thickness for jeans or jacket pockets.
Long browsing or video calls feel nearly identical; iPhone 15 is only 1 g heavier than iPhone 16 (171 g vs 170 g).
iPhone 15 takes up more desk and bag space at 71.6 × 147.6 × 7.8 mm, while iPhone 15 leaves more room for cases, chargers, and other items.

Which is Bigger?

Overall size: iPhone 15 matches iPhone 16 on width and height, making iPhone 15 slightly larger overall.
Width: iPhone 15 is wider (71.6 mm vs 71.6 mm, 0 mm).
Height: iPhone 15 is taller (147.6 mm vs 147.6 mm, 0 mm).

Weight Comparison

iPhone 15 weighs 171 g and iPhone 16 weighs 170 g — a difference of 1 g. iPhone 15 is 0.6% heavier than iPhone 16.

Thickness Comparison

Both devices share the same official thickness of 7.8 mm.

FAQ

Which phone is bigger?: iPhone 15 matches iPhone 16 on width and height (71.6 × 147.6 mm vs 71.6 × 147.6 mm).
Which phone is lighter?: iPhone 16 is lighter at 170 g versus iPhone 15 at 171 g (1 g difference).
Which phone is thinner?: Both are 7.8 mm thick.
Which phone is easier to carry?: Both phones are similarly easy to carry. iPhone 15 is 71.6 × 147.6 × 7.8 mm and 171 g, while iPhone 16 is 71.6 × 147.6 × 7.8 mm and 170 g.
Which phone is better for one-handed use?: iPhone 16 is better for one-handed use with a 71.6 mm width, 147.6 mm height, and 170 g weight versus iPhone 15 at 71.6 mm, 147.6 mm, and 171 g.

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Open iPhone 15 and iPhone 16 in the comparison tool