If you're a female skier, women's-specific hip protectors are absolutely worth seeking out. Women typically have wider hips relative to the waist, which means the key impact point—the greater trochanter (the bony prominence on your upper thigh bone)—sits in a different position than on a male body. Women's models position the pads to align with this wider pelvic structure.
When you wear a unisex or men's protector, the pads often sit too close together, missing the actual impact zone on your hips. That misalignment can render the protection essentially useless in a fall—you'd have padding, just not where you actually need it.
Women's-specific designs also account for the different waist-to-hip ratio, so the shorts stay put better throughout the day rather than shifting around. Since proper pad positioning is the whole point of wearing hip protectors, choosing a model built for your anatomy really matters.