Small size: approximately 74cm 3 holes (including dial length), approximately suitable for 5.5-6.3 inches of wrist product weight: approximately 33.9g after packaging

 Medium size: approximately 83cm 3 holes (including dial length), approximately suitable for 6.3-7.2 inches of wrist product weight: approximately 36.2g after packaging

Large size: approximately 96cm 3 holes (including dial length), approximately suitable for 7.2-8.1 inches of wrist product weight: approximately 39.3g after packaging

All dimensions were measured manually with some deviation.