Real Size Phones
Size comparison

iPhone 17 Pro Max vs OnePlus 13 size

The iPhone 17 Pro Max measures 163.4 x 78 x 8.75 mm and the OnePlus 13 measures 162.9 x 76.5 x 8.5 mm. The iPhone 17 Pro Max is the bigger phone. Its front covers 2.3% more area than the OnePlus 13.

iPhone 17 Pro Max163.4 x 78 mm, 233 gOnePlus 13162.9 x 76.5 mm, 213 g
Scaled to fit. Calibrate once to see real size.
  • iPhone 17 Pro Max233 g163.4 x 78 x 8.8 mm
  • OnePlus 13213 g162.9 x 76.5 x 8.5 mm

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

How the iPhone 17 Pro Max measures up

Height, iPhone 17 Pro Max
+0.5 mm
Width, iPhone 17 Pro Max
+1.5 mm
Thickness, iPhone 17 Pro Max
+0.25 mm
Weight, iPhone 17 Pro Max
+20 g
SpeciPhone 17 Pro MaxOnePlus 13Difference
Height163.4 mm
6.43 in
162.9 mm
6.41 in
+0.5 mm (+0.3%)
Width78 mm
3.07 in
76.5 mm
3.01 in
+1.5 mm (+2.0%)
Thickness8.75 mm
0.34 in
8.5 mm
0.33 in
+0.25 mm (+2.9%)
Weight233 g
8.2 oz
213 g
7.5 oz
+20 g (+9.4%)
Screen6.9 in6.82 in+0.08 in (+1.2%)
Front footprint127.5 cm²124.6 cm²+2.8 cm² (+2.3%)

What the difference feels like

The iPhone 17 Pro Max is 1.5 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.

Height is almost identical, so they sit the same in a pocket.

At 20 g heavier (0.7 oz), the iPhone 17 Pro Max is noticeably heftier when you hold it up to read.

Common questions

Is the iPhone 17 Pro Max bigger than the OnePlus 13?

The iPhone 17 Pro Max is the bigger phone. Its front covers 2.3% more area than the OnePlus 13. Height differs by 0.5 mm and width by 1.5 mm.

Will a OnePlus 13 case fit the iPhone 17 Pro Max?

No. A case is cut for one model's exact size, buttons and camera, and these two differ by 0.5 mm in height and 1.5 mm in width. Buy a case made for the iPhone 17 Pro Max.

Which is easier to use with one hand?

The OnePlus 13, because it is 1.5 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: iPhone 17 Pro Max and OnePlus 13.

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.