ASUS ZenWatch 2 straps come in two different sizes — 1.63 inches (WI501Q) and 1.45 inches (WI502Q) — and three premium materials, including leather, rubber, and stainless steel. Each of these styles is available in different color choices, allowing anyone to have their own unique ZenWatch 2 that is truly personal. The larger strap (WI501Q) even fits the original ASUS ZenWatch (WI500Q), providing wearers the ability to refresh their watch with a brand-new style.