SuppRankedOne A Day vs SmartyPants: Amazon sales compared
Estimated Amazon revenue, units and category ranks for both brands, side by side. Updated October 15, 2026.
On Amazon, One A Day brings in an estimated $2.8M/mo versus $2.7M/mo for SmartyPants, about the same as its rival (modeled estimates, Oct 15, 2026). One A Day also sells more units (~139K vs ~107K a month) across 12 ranked products to 13. They meet in 3 Best Sellers lists: One A Day leads in 2 and SmartyPants in 1. Average ratings are close at 4.57 vs 4.57.
Head to head
| Metric | One A Day | SmartyPants |
|---|---|---|
| Est. revenue/mo | $2.8M | $2.7M |
| Est. units/mo | 139K | 107K |
| Overall rank (score) | #38 | #41 |
| Rank by est. revenue | #32 | #36 |
| SuppRanked score | 61.8 | 61.0 |
| Best-selling products | 12 | 13 |
| Categories ranked in | 4 | 8 |
| #1 category ranks | 0 | 0 |
| Avg rating | 4.57 | 4.57 |
| Total reviews | 195K | 16.1K |
| Gummy share | 17% | 92% |
Shared categories Est. revenue/mo in each Best Sellers top 100 · best position
| Category | One A Day | SmartyPants |
|---|---|---|
| Vitamins | $1.2M | $1.6M |
| Multivitamins | $1.6M | $1.2M |
| Prenatal Vitamins | $1.2M | $984K |
Top products
One A Day
SmartyPants
FAQ
Which sells more on Amazon, One A Day or SmartyPants?
By SuppRanked's estimates, One A Day sells more: about $2.8M/mo in Amazon revenue versus $2.7M/mo for SmartyPants. These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 15, 2026), not official Amazon sales data.
Who sells more Vitamins on Amazon, One A Day or SmartyPants?
In the Vitamins Best Sellers top 100, SmartyPants leads with ~$1.6M/mo estimated, against ~$1.2M/mo for One A Day. Estimates only.