Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Problems start when you replace the battery
Review: It works properly until you have to replace the battery. The cover is stuck, it is very hard to open it. After the battery was replaced, it gets stuck in the middle of the training, or give wrong pulse reading - very high or too slow.I consider not to replace it but buy the whole set from a different brand.
