Fitbit Versa 4 Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Fitbit is the best-performing fitbit versa 4 brand in July 2026, moving 37,000 units across 6 ASINs for 57.8% of Top 10 volume. Apple follows with 18,000 units (28.1%), ahead of aeac on 5,000 units (7.8%).

With 4 brands splitting the Top 10 and 93.8% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $49.99 to $259.00, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B0DYJKTHYF booked 4K units at $79.00, with ▲ 100.0% MoM change. On the growth side, B0BW2SMS5V leads positive momentum with ▲ 300.0% MoM growth on 400 units, with B08FS8JTBC close behind at ▲ 200.0% MoM on 300 units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.