iPhone 17 vs iPhone SE (3rd gen) size
The iPhone 17 measures 149.6 x 71.5 x 7.95 mm and the iPhone SE (3rd gen) measures 138.4 x 67.3 x 7.3 mm. The iPhone 17 is the bigger phone. Its front covers 14.8% more area than the iPhone SE (3rd gen).
- iPhone 17177 g149.6 x 71.5 x 8 mm
- iPhone SE (3rd gen)144 g138.4 x 67.3 x 7.3 mm
Outlines are drawn from published dimensions. Screen and camera shapes are simplified.
How the iPhone 17 measures up
| Spec | iPhone 17 | iPhone SE (3rd gen) | Difference |
|---|---|---|---|
| Height | 149.6 mm 5.89 in | 138.4 mm 5.45 in | +11.2 mm (+8.1%) |
| Width | 71.5 mm 2.81 in | 67.3 mm 2.65 in | +4.2 mm (+6.2%) |
| Thickness | 7.95 mm 0.31 in | 7.3 mm 0.29 in | +0.65 mm (+8.9%) |
| Weight | 177 g 6.2 oz | 144 g 5.1 oz | +33 g (+22.9%) |
| Screen | 6.3 in | 4.7 in | +1.6 in (+34.0%) |
| Front footprint | 107 cm² | 93.1 cm² | +13.8 cm² (+14.8%) |
What the difference feels like
The iPhone 17 is 4.2 mm wider, an obvious difference in the hand. If you use your phone one-handed, the iPhone SE (3rd gen) will be easier to reach across.
In a jeans pocket the iPhone 17 sits 11.2 mm higher, about 0.44 inches.
The iPhone 17 is 0.65 mm thicker. Manufacturers measure thickness without the camera bump, so the real difference at the camera can be larger.
At 33 g heavier (1.2 oz), the iPhone 17 is noticeably heftier when you hold it up to read.
Common questions
Is the iPhone 17 bigger than the iPhone SE (3rd gen)?
The iPhone 17 is the bigger phone. Its front covers 14.8% more area than the iPhone SE (3rd gen). Height differs by 11.2 mm and width by 4.2 mm.
Will a iPhone SE (3rd gen) case fit the iPhone 17?
No. A case is cut for one model's exact size, buttons and camera, and these two differ by 11.2 mm in height and 4.2 mm in width. Buy a case made for the iPhone 17.
Which is easier to use with one hand?
The iPhone SE (3rd gen), because it is 4.2 mm narrower. Width matters more than height for reaching across the screen with your thumb.
Cases and prices
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Related comparisons
Sources
- iPhone 17: manufacturer spec page
- iPhone SE (3rd gen): manufacturer spec page
See each phone's page for the full spec: iPhone 17 and iPhone SE (3rd gen).