The pure black 3D curved bezel-less glass is crafted into seamless shape with smooth lines from every angle, achieving an exquisitely, incredibly stylish look and feel. The 3D glass front and polished stainless-steel back perfectly fused together, making the watch sleek and ultra-slim. With only 9 mm thickness, it's exceptionally comfortable to wear day and night. The design of the Zepp E circle version is inspired by the harmonious nature elements. It features a flawless unibody that makes each beam of light and shadow flow softly over the 3D watch face.