After purchasing mine in September, it has been returned to Samsung 5 times of which the HR sensor and mobo have been changed 3 times and Samsung has finally decided to allow me a full refund. The watch went back to Samsung 1 week ago and I am waiting for money to turn up in my account. I was told 10 to 14 days. If your watch does not meet the purpose for which it was bought, in my case fitness and heart rate tracking, keep returning the watch for repair. After three repairs they will offer an alternative solution. It may not be a full refund though. This was my experience.
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