Device Size Comparison
Weight
The Galaxy S23 Ultra is 57g heavier than the iPhone 17 (32.2%).
Height
The Galaxy S23 Ultra is 13.8mm taller than the iPhone 17.
Width
The Galaxy S23 Ultra is 6.6mm wider than the iPhone 17.
Thickness
The Galaxy S23 Ultra is 1mm thicker than the iPhone 17.
Smaller body
iPhone 17
iPhone 17 (71.5 × 149.6 mm) vs Galaxy S23 Ultra (78.1 × 163.4 mm).
Lighter weight
iPhone 17
iPhone 17 (177 g) vs Galaxy S23 Ultra (234 g), 57 g lighter.
Thinner design
iPhone 17
iPhone 17 (7.95 mm) vs Galaxy S23 Ultra (8.9 mm).
Pocketability
iPhone 17
iPhone 17 has a smaller overall body size for pocket carry (71.5 × 149.6 × 7.95 mm).
Larger overall size
Galaxy S23 Ultra
Galaxy S23 Ultra is 6.6 mm wider and 13.8 mm taller than iPhone 17 (78.1 × 163.4 mm vs 71.5 × 149.6 mm).
| Dimension | Galaxy S23 Ultra | iPhone 17 | Difference |
|---|---|---|---|
| Width | 78.1 mm | 71.5 mm | -6.6 mm |
| Height | 163.4 mm | 149.6 mm | -13.8 mm |
| Thickness | 8.9 mm | 7.95 mm | -0.95 mm |
| Weight | 234 g | 177 g | -57 g |
Pocket Carry
The iPhone 17's slimmer edge may slide into jeans or jacket pockets more easily, and the iPhone 17 has the smaller listed frame for upright storage.
One-Hand Use
The iPhone 17's shorter body may reduce vertical thumb travel; the Galaxy S23 Ultra covers more height when reaching the top of the screen.
Daily Comfort
Listed weight and bulk move together here: the Galaxy S23 Ultra is both heavier and larger, which can feel more substantial during routine handheld use.
Travel & Bag Carry
The Galaxy S23 Ultra uses more organizer space in a bag or backpack; the iPhone 17 leaves more room beside cases and chargers, and the Galaxy S23 Ultra adds more listed mass to a packed carry.
Who should choose the Galaxy S23 Ultra?
Choose the Galaxy S23 Ultra if you prefer the larger listed body with higher listed weight (234g vs 177g), wider 78.1 mm body (vs 71.5 mm), taller 163.4 mm frame (vs 149.6 mm), thicker 8.9 mm edge (vs 7.95 mm), and larger overall footprint (78.1 × 163.4 mm vs 71.5 × 149.6 mm).
Who should choose the iPhone 17?
Choose the iPhone 17 if you want the more compact listed option with lighter listed weight (177g vs 234g), narrower 71.5 mm width (vs 78.1 mm), shorter 149.6 mm height (vs 163.4 mm), thinner 7.95 mm profile (vs 8.9 mm), and smaller width × height footprint (71.5 × 149.6 mm vs 78.1 × 163.4 mm).
Overall recommendation
Overall, the iPhone 17 is the more compact pick on listed size, and the Galaxy S23 Ultra 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.