Device Size Comparison
Weight
The iPad Pro 13 M4 is 408g heavier than the iPhone 15 (238.6%).
Width
The iPad Pro 13 M4 is 143.9mm wider than the iPhone 15.
Height
The iPad Pro 13 M4 is 134mm taller than the iPhone 15.
Thickness
The iPhone 15 is 2.7mm thicker than the iPad Pro 13 M4.
Smaller body
iPhone 15
iPhone 15 (71.6 × 147.6 mm) vs iPad Pro 13 M4 (215.5 × 281.6 mm).
Lighter weight
iPhone 15
iPhone 15 (171 g) vs iPad Pro 13 M4 (579 g), 408 g lighter.
Thinner design
iPad Pro 13 M4
iPad Pro 13 M4 (5.1 mm) vs iPhone 15 (7.8 mm).
Pocketability
iPhone 15
iPhone 15 has a smaller overall body size for pocket carry (71.6 × 147.6 × 7.8 mm).
Larger overall size
iPad Pro 13 M4
iPad Pro 13 M4 is 143.9 mm wider and 134 mm taller than iPhone 15 (215.5 × 281.6 mm vs 71.6 × 147.6 mm).
| Dimension | iPad Pro 13 M4 | iPhone 15 | Difference |
|---|---|---|---|
| Width | 215.5 mm | 71.6 mm | -143.9 mm |
| Height | 281.6 mm | 147.6 mm | -134 mm |
| Thickness | 5.1 mm | 7.8 mm | +2.7 mm |
| Weight | 579 g | 171 g | -408 g |
Pocket Carry
The iPhone 15 is the better pocket fit on paper; the iPad Pro 13 M4 may feel tighter when stored vertically in shallow pockets.
One-Hand Use
The iPhone 15's narrower face may suit one-handed scrolling, while the iPad Pro 13 M4 asks for a wider grip across the display.
Daily Comfort
Listed weight and bulk move together here: the iPad Pro 13 M4 is both heavier and larger, which can feel more substantial during routine handheld use.
Travel & Bag Carry
The iPad Pro 13 M4 uses more organizer space in a bag or backpack; the iPhone 15 leaves more room beside cases and chargers, and the iPad Pro 13 M4 adds more listed mass to a packed carry.
Who should choose the iPad Pro 13 M4?
Choose the iPad Pro 13 M4 if thinner 5.1 mm profile (vs 7.8 mm) matter most to you, even though it also has higher listed weight (579g vs 171g), wider 215.5 mm body (vs 71.6 mm), taller 281.6 mm frame (vs 147.6 mm), and larger overall footprint (215.5 × 281.6 mm vs 71.6 × 147.6 mm) compared with the iPhone 15.
Who should choose the iPhone 15?
Choose the iPhone 15 if lighter listed weight (171g vs 579g), narrower 71.6 mm width (vs 215.5 mm), shorter 147.6 mm height (vs 281.6 mm), and smaller width × height footprint (71.6 × 147.6 mm vs 215.5 × 281.6 mm) matter most to you, even though it also has thicker 7.8 mm edge (vs 5.1 mm) compared with the iPad Pro 13 M4.
Overall recommendation
Overall, the iPhone 15 is the more compact pick on listed size, and the iPad Pro 13 M4 is the larger option for buyers who want more physical presence from the official dimensions alone.
More size comparisons from the same device families, brands, and recent flagship models.