FEIERDUN DS2 Adjustable Dumbbells, 20/30/40/45/70/90lbs Free Weight Set with Connector, 5 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Weight Plate, Fitness Exercises for Home Gym Suitable Men/Women
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Above normal
$89.99 is 17% above the $76.49 it normally sells for. It sold at or within 3% of $76.49 for at least about a week of the last 45 days.
- Now
- $89.99
- Normally
- $76.49
- Lowest in 139 days
- $71.99(Oct 7)
- Highest
- $89.99
Where today's price sits
Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.
Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)
Price history
Tracked since Jun 25 · 139 days · 31 price changes
Ahead of Black Friday 2026 (Nov 27), it is 17% above its normal price of $76.49. A "sale" back to $76.49 would only return it to normal. FEIERDUN DS2 Adjustable Dumbbells, 20/30/40/45/70/90lbs Free Weight… price history, checked Nov 11, 2026: current price $89.99, normal (typical) price $76.49, average $84.59 over 139 days, lowest $71.99 (Oct 7, 2026), highest $89.99 (Nov 9, 2026).
Loading the price chart.
- Price
- Not checked for 3+ days
- Normal $76.49
- 5% or more below normal
How often does it drop below normal?
In the 139 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more 4 times, typically lasting about 1 day. The last time ended Oct 8.
A count of what happened, not a prediction.
Other ways to buy
New from
$89.99
FEIERDUN FITFulfilled by Amazon · Seller rating 91% of 1,039
Used from
$82.25
Amazon ResaleFulfilled by Amazon
All 3 offers
| Seller | Condition | Price | FBA | Seller rating |
|---|---|---|---|---|
| Amazon Resale | Used - Acceptable | $82.25 | Yes | — |
| FEIERDUN FIT | New | $89.99 | Yes | 91% of 1,039 |
| Amazon.com | New | $108.08 | Yes | 100% |
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Get this as JSONThe same verdict and prices, from the TrackPin API.
curl https://trackpin.co/api/v1/product/B09FYTG37V \
-H "x-api-key: $TRACKPIN_API_KEY"const res = await fetch("https://trackpin.co/api/v1/product/B09FYTG37V", {
headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();
console.log(product.verdict.label, product.price.reference_cents);import os, requests
r = requests.get(
"https://trackpin.co/api/v1/product/B09FYTG37V",
headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()
print(product["verdict"]["label"], product["price"]["reference_cents"])This is exactly what the API returns for this product. Free keys include 100 requests a day.
Request a key{
"asin": "B09FYTG37V",
"title": "FEIERDUN DS2 Adjustable Dumbbells, 20/30/40/45/70/90lbs Free Weight Set with Connector, 5 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Weight Plate, Fitness Exercises for Home Gym Suitable Men/Women",
"image": "https://m.media-amazon.com/images/I/71BE37ZZfLL._AC_SL500_.jpg",
"currency": "USD",
"category": "Sports",
"category_label": "Sports",
"in_stock": true,
"price": {
"current_cents": 8999,
"reference_cents": 7649,
"discount_pct": -17.65,
"is_deal": false,
"observed_at": 1794437697442,
"changed_at": 1794190505258,
"checked_at": 1794437697442,
"source": "stored"
},
"verdict": {
"label": "above",
"text": "Above normal",
"pct_vs_normal": -17.65,
"evidence": "strong",
"stale": false,
"suspect": false,
"steady_since": null,
"sentence": "Above normal. $89.99 is 17% above the $76.49 it normally sells for. It sold at or within 3% of $76.49 for at least about a week of the last 45 days."
},
"listing_claim": null,
"stats": {
"min_cents": 7199,
"max_cents": 8999,
"avg_cents": 8459,
"history_days": 139,
"price_levels": 201,
"price_changes": 31,
"distinct_prices": 6,
"lowest_at": 1791340265996
},
"history": [
{
"price_cents": 8499,
"from": 1793066266920,
"to": 1793238609732
},
{
"price_cents": 7999,
"from": 1793240655053,
"to": 1793255599813
},
{
"price_cents": 8999,
"from": 1793257293850,
"to": 1794126968840
},
{
"price_cents": 7649,
"from": 1794147434870,
"to": 1794190114319
},
{
"price_cents": 8999,
"from": 1794190505258,
"to": 1794437697442
}
],
"last_seen": 1794437697442
}
// … 196 more steps in the full responseNormal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.