Real Size Phones
Size comparison

OnePlus 15 vs iPhone 17 Pro Max size

The OnePlus 15 measures 161.42 x 76.67 x 8.2 mm and the iPhone 17 Pro Max measures 163.4 x 78 x 8.75 mm. The iPhone 17 Pro Max is the bigger phone. Its front covers 2.9% more area than the OnePlus 15.

OnePlus 15161.42 x 76.67 mm, 215 giPhone 17 Pro Max163.4 x 78 mm, 233 g
Scaled to fit. Calibrate once to see real size.
  • OnePlus 15215 g161.4 x 76.7 x 8.2 mm
  • iPhone 17 Pro Max233 g163.4 x 78 x 8.8 mm

Outlines are drawn from published dimensions. Screen and camera shapes are simplified.

How the OnePlus 15 measures up

Height, OnePlus 15
-1.98 mm
Width, OnePlus 15
-1.33 mm
Thickness, OnePlus 15
-0.55 mm
Weight, OnePlus 15
-18 g
SpecOnePlus 15iPhone 17 Pro MaxDifference
Height161.42 mm
6.36 in
163.4 mm
6.43 in
-1.98 mm (-1.2%)
Width76.67 mm
3.02 in
78 mm
3.07 in
-1.33 mm (-1.7%)
Thickness8.2 mm
0.32 in
8.75 mm
0.34 in
-0.55 mm (-6.3%)
Weight215 g
7.6 oz
233 g
8.2 oz
-18 g (-7.7%)
Screen6.78 in6.9 in-0.12 in (-1.7%)
Front footprint123.8 cm²127.5 cm²-3.7 cm² (-2.9%)

What the difference feels like

The iPhone 17 Pro Max is 1.3 mm wider. That is small, but you can feel it when you wrap your hand around the phone, and it adds a little stretch for one-handed typing.

In a jeans pocket the iPhone 17 Pro Max sits 2 mm higher, about 0.08 inches.

The iPhone 17 Pro Max is 0.55 mm thicker. Manufacturers measure thickness without the camera bump, so the real difference at the camera can be larger.

At 18 g heavier (0.6 oz), the iPhone 17 Pro Max is noticeably heftier when you hold it up to read.

Common questions

Is the OnePlus 15 bigger than the iPhone 17 Pro Max?

The iPhone 17 Pro Max is the bigger phone. Its front covers 2.9% more area than the OnePlus 15. Height differs by 2 mm and width by 1.3 mm.

Will a iPhone 17 Pro Max case fit the OnePlus 15?

No. A case is cut for one model's exact size, buttons and camera, and these two differ by 2 mm in height and 1.3 mm in width. Buy a case made for the OnePlus 15.

Which is easier to use with one hand?

The OnePlus 15, because it is 1.3 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

See each phone's page for the full spec: OnePlus 15 and iPhone 17 Pro Max.

Calibrate true size

Hold any credit card, debit card or ID card flat against your screen, upright if you are on a phone. Drag the slider until the outline matches the card edge to edge.

Every standard bank card is 85.60 by 53.98 mm. The setting stays on this device and screen only.