When placed side by side, the iPhone 16 Pro Max and Apple Watch Ultra 3 reveal a clear story. In terms of height, the iPhone 16 Pro Max stands at 163.0 mm while the Apple Watch Ultra 3 measures 49.0 mm. The iPhone 16 Pro Max is 114.0 mm taller. Looking at width, the iPhone 16 Pro Max is 77.6 mm across versus the Apple Watch Ultra 3's 44.0 mm. The iPhone 16 Pro Max is 33.6 mm wider. For thickness, the iPhone 16 Pro Max comes in at 8.3 mm compared to the Apple Watch Ultra 3's 14.4 mm. The Apple Watch Ultra 3 is 6.2 mm thicker.
The iPhone 16 Pro Max is heavier at 227 grams versus 61.4 grams for the Apple Watch Ultra 3. That is a 165.6-gram difference (269.7%). While this may seem small, you can feel a noticeable difference during extended use.
Fits in most pockets, may feel snug when sitting.
Most of the screen is reachable, shifting grip needed for corners.
| Metric | iPhone 16 Pro Max | Apple Watch Ultra 3 | Diff |
|---|---|---|---|
| Width | 77.6 mm | 44.0 mm | +33.6 mm |
| Height | 163.0 mm | 49.0 mm | +114.0 mm |
| Depth | 8.3 mm | 14.4 mm | -6.2 mm |
| Weight | 227 g | 61.4 g | +165.6 mm |