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The iPhone 15 Plus and Samsung Galaxy S25 are most easily told apart by their overall size. On height, the iPhone 15 Plus measures 160.9 mm against the Samsung Galaxy S25's 146.9 mm — about 14.0 mm more. On width, the iPhone 15 Plus measures 77.8 mm against the Samsung Galaxy S25's 70.5 mm — about 7.3 mm more. On thickness, the iPhone 15 Plus measures 7.8 mm against the Samsung Galaxy S25's 7.2 mm — about 0.6 mm more.
The iPhone 15 Plus is the heavier of the two at 201 g, compared with 162 g for the Samsung Galaxy S25. That is a 39 g difference (24%). In daily handling the difference is easy to feel.
Fits in most pockets, may feel snug when sitting.
Most of the screen is reachable, shifting grip needed for corners.
Fits comfortably in most front pockets.
Comfortable to reach all corners with one thumb.
| Metric | iPhone 15 Plus | Samsung Galaxy S25 | Diff |
|---|---|---|---|
| Width | 77.8 mm | 70.5 mm | +7.3 mm |
| Height | 160.9 mm | 146.9 mm | +14.0 mm |
| Depth | 7.8 mm | 7.2 mm | +0.6 mm |
| Weight | 201 g | 162 g | +39 g |