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While looking for that Fitbit scale, I noticed this activity tracker on clearance. Marked down to $ 30. Did not check to see if it scans lower than that (as often Walmart clearance items do). There were a couple in stock at my store.
Tracker gets so-so reviews for the regular price above $ 100. At $ 30, it may work as a cheap tracker. Most of the negatives were 3 day battery life that I have seen.