iPhone 17 Pro vs iPhone 15 Screen Size Comparison

Visual comparison of iPhone 17 Pro (6.3") and iPhone 15 (6.1") screen size.

Last updated: Dec 2025

Detailed Comparison Analysis

Looking at iPhone 17 Pro versus iPhone 15, with 6.3" and 6.1" diagonal measurements, the size difference is negligible. Both provide similar viewing space—the iPhone 17 Pro's 7% edge is barely perceptible. iPhone 17 Pro has a larger 3900mAh battery compared to 3349mAh on iPhone 15. iPhone 15 weighs 171g, 28g lighter than iPhone 17 Pro at 199g.This impacts how the phone handles in your hand and fits in your pocket. The iPhone 15's compact size makes it easier to use with one hand.

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The Verdict

The iPhone 17 Pro is 6.7% larger than the iPhone 15 in screen area.

iPhone 17 Pro

15.1 sq in

iPhone 15

14.2 sq in

View full specs

iPhone 17 Pro Screen Size

View full specs

iPhone 15 Screen Size

Quick Comparison

iPhone 17 Pro wins 5/8
6.3"
Screen Size
6.1"
15.1 sq in
Screen Area
14.2 sq in
2.64"
Width
2.56"
458 PPI
Pixel Density
461 PPI
3900 mAh
Battery
3349 mAh
199g
Weight
171g
120Hz
Refresh Rate
60Hz
2500 nits
Brightness
2000 nits
iPhone 17 Pro
vs
iPhone 15

Use Case Comparison

👋

One-Handed Use

Ease of reaching corners with your thumb

iPhone 17 Pro
Comfortable
iPhone 15
Comfortable
🎬

Video Watching

Movies, streaming, and video content

iPhone 17 Pro
Very Good
iPhone 15
Good
👖

Pocket Fit

Comfort in jeans and jacket pockets

iPhone 17 Pro
Fits easily
iPhone 15
Fits easily
🎮

Mobile Gaming

Gaming performance and experience

iPhone 17 Pro
Excellent
iPhone 15
Good

Upgrade Insight

The iPhone 17 Pro is 2 years newer, with noticeable upgrades in camera, chip performance, software support.

iPhone 17 Pro (Sep 2025) iPhone 15 (Sep 2023)

Which Should You Choose?

Choose iPhone 17 Pro

  • • You want a slightly larger screen for better visibility
  • • You value the extra screen space for daily tasks
  • • You want longer battery life (3900mAh vs 3349mAh)
  • • You want a smoother 120Hz display

Choose iPhone 15

  • • You want a more manageable device size
  • • You prefer easier one-handed use
  • • You prefer a lighter phone (171g vs 199g)

Detailed Specifications

Diagonal
iPhone 17 Pro
6.3"
iPhone 15
6.1"
Diff: 0.2"
Dimensions (W × H)
iPhone 17 Pro
2.6" × 5.7"
iPhone 15
2.6" × 5.5"
Screen Area
iPhone 17 Pro
15.1 sq in
iPhone 15
14.2 sq in
Diff: 0.9 sq in
Aspect Ratio
iPhone 17 Pro
2.17:1
iPhone 15
2.17:1
Resolution
iPhone 17 Pro
2622 x 1206
iPhone 15
2556 x 1179
Refresh Rate
iPhone 17 Pro
120Hz
iPhone 15
60Hz
Diff: 60 Hz
Screen Type
iPhone 17 Pro
Super Retina XDR
iPhone 15
Super Retina XDR
Peak Brightness
iPhone 17 Pro
2500 nits
iPhone 15
2000 nits
Diff: 500 nits
Weight
iPhone 17 Pro
199g
iPhone 15
171g
Diff: 28 g
Battery
iPhone 17 Pro
3900 mAh
iPhone 15
3349 mAh
Diff: 551 mAh
Body Size (H×W×D)
iPhone 17 Pro
152.8×72.1×8.1mm
iPhone 15
147.6×71.6×7.8mm
Always-On Display
iPhone 17 Pro
Yes
iPhone 15
No
Category
iPhone 17 Pro
phone
iPhone 15
phone

Frequently Asked Questions

Which phone is lighter and easier to hold?
The iPhone 15 weighs 171g, which is 28g lighter than the iPhone 17 Pro at 199g. This difference is noticeable during extended use, reading, or one-handed operation.
Are iPhone 17 Pro and iPhone 15 the same size?
iPhone 17 Pro and iPhone 15 are very similar in size, with only a 0.2" difference in diagonal (6.3" vs 6.1"). The iPhone 17 Pro is 7% larger in screen area, but in daily use, the size difference is minimal.
Will both phones fit in my pocket?
Both phones will fit in standard pockets, but the iPhone 15 will be more comfortable. The iPhone 17 Pro measures 2.64" wide and 5.72" tall, which may feel bulky in tight jeans or smaller pockets. The iPhone 15 at 2.56" × 5.54" offers better portability.
Which phone has better battery life?
The iPhone 17 Pro has a larger 3900mAh battery compared to 3349mAh on the iPhone 15, a difference of 551mAh. Actual battery life depends on screen size, brightness settings, processor efficiency, and usage patterns, but the larger battery generally provides longer endurance.

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