We reported about FitBit + Lumia 635 bundle, starting from $148.95 at Microsoft store with savings of $50 on overall Bundle price. The bundle offer includes both AT&T and T-Mobile prepaid Lumia 635 and thus may vary by $30 in price based on which carrier you chose. But, the Bundle went out of stock pretty soon.
Good news is that the Bundle is now in stock and one can choose either of the carrier models, T-Mobile or AT&T for Lumia 635 and choose any of the FitBit Flex color models. Hurry up before it again goes out of stock.