In terms of physical footprint, the Xiaomi Pad 7 Ultra is notably larger, measuring 305.8 × 207.5 mm compared to the 279.1 × 192 mm of the Pad 7S Pro. This translates into a meaningfully bigger screen area and a higher total volume (323.6 cm³ vs 310.8 cm³), which is the expected trade-off for a larger display device. Interestingly, despite its larger body, the Pad 7 Ultra is actually thinner at 5.1 mm versus the 7S Pro's 5.8 mm — a real engineering feat that gives it a more premium, svelte feel in hand. However, that larger chassis does add weight: the Pad 7 Ultra comes in at 609 g, about 24 g heavier than the 7S Pro's 585 g. Over long reading or video sessions held in one hand, that difference can be noticeable.
A significant functional divergence is that the Pad 7 Ultra supports a detachable keyboard, while the Pad 7S Pro does not. For users who want to use their tablet as a productivity or laptop-replacement device, this is a major advantage for the Ultra — no third-party solution is needed. Neither tablet includes a stylus, features tilt sensitivity, offers a backlit keyboard option, or carries any water resistance rating, so those aspects are evenly matched (or rather, equally absent) across both.
Overall, the Pad 7 Ultra has a clear design edge for productivity use thanks to its detachable keyboard support and slimmer profile, but the Pad 7S Pro is the more portable option — lighter and more compact, which matters for users prioritizing on-the-go convenience over a larger canvas and desktop-style input.