Measure your wrist circumference and reference the ranges below for the PushTracker size that fits you best:
Small: 4-1/2″ / 114 mm to 6″ / 152 mm
Medium: 6″ / 152 mm to 7-1/4″ / 184 mm
Large: 7-1/4″ / 184 mm to 9″ / 229 mm
The band on the PushTracker is designed for most users. But if you have difficulty securing, it doesn’t fit quite right, or you wish to have one of a different color / material / pattern, the band can be easily replaced with essentially any 0.7″ (18 mm) wide off-the-shelf watch band of your choosing.