With a 50mm diameter casing and 13.6mm thickness, the Suunto 7 is at the larger end for a smartwatch. It may look oversized on very slim wrists. But the rounded edges, lightweight build and short lug-to-lug length give it a low profile on the wrist. For most average to large sized wrists, the Suunto 7 should fit well. The AMOLED display maximizes the watch face area while minimizing the bezel for an efficient footprint. While not the most compact, the size is typical for a sports-focused smartwatch with GPS built-in. It all comes down to personal comfort - try it on in person if possible.