Skip to content
TrackPin
Check a price
Menu
Developers

Theme

FMART T9Pro Window Cleaning Robot, Ultrasonic Atomization Intelligent Water Spray, 3800PA Suction Power, AI Intelligent Path Planning, Edge Detection Technology, Remote Control Robot Window Cleaner

Show full title
Rated3.8(197 ratings)In stock

Good price

$99.79 is 7% below the $107.34 it normally sells for, and the lowest we've seen in 143 days.

Now
$99.79
Normally
$107.34
Lowest in 143 days
$99.79(Nov 12)
Highest
$139.79
Evidence: Strong143 days tracked14 price changes

Where today's price sits

View on amazon.com (opens in a new tab)

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.

Get an email when the price drops

Good: 5%+ below normal. Great: 20%+ below. One email when it happens, at a price below today's $99.79. No account, no newsletter.

Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)

The listing's crossed-out price

Holds up

The listing shows

crossed out: Typical $112.99 −12%

Against its normal price

−7% vs $107.34

Typical $112.99 (−12%) holds up: today's price is 7% below normal.

The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →

Price history

Tracked since Jun 22 · 143 days · 14 price changes

Ahead of Black Friday 2026 (Nov 27), it is already 7% below its normal price of $107.34. FMART T9Pro Window Cleaning Robot, Ultrasonic Atomization… price history, checked Nov 12, 2026: current price $99.79, normal (typical) price $107.34, average $116.90 over 143 days, lowest $99.79 (Nov 12, 2026), highest $139.79 (Oct 15, 2026).

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $107.34
  • 5% or more below normal

How often does it drop below normal?

In the 143 days we've tracked it, this is the first time it has stayed 5% or more below today's normal price for an hour or more. It has been below normal for less than a day so far.

A count of what happened, not a prediction.

Other ways to buy

  • New from

    $99.79

    Fmart RoboticFulfilled by Amazon · Seller rating 87% of 98

More real deals in Kitchen

See all
Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B09VKKKW4K
Request
curl https://trackpin.co/api/v1/product/B09VKKKW4K \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 23:55 UTC
{
  "asin": "B09VKKKW4K",
  "title": "FMART T9Pro Window Cleaning Robot, Ultrasonic Atomization Intelligent Water Spray, 3800PA Suction Power, AI Intelligent Path Planning, Edge Detection Technology, Remote Control Robot Window Cleaner",
  "image": "https://m.media-amazon.com/images/I/715fn0EH+fL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "Kitchen",
  "category_label": "Kitchen",
  "in_stock": true,
  "price": {
    "current_cents": 9979,
    "reference_cents": 10734,
    "discount_pct": 7.03,
    "is_deal": true,
    "observed_at": 1794516260270,
    "changed_at": 1794478132463,
    "checked_at": 1794516260270,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 7.03,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $99.79 is 7% below the $107.34 it normally sells for, and the lowest we've seen in 143 days."
  },
  "listing_claim": {
    "label": "Typical:",
    "listing_reference_cents": 11299,
    "claimed_pct": 12,
    "real_pct": 7.03,
    "class": "holds_up",
    "observed_at": 1794478165675
  },
  "stats": {
    "min_cents": 9979,
    "max_cents": 13979,
    "avg_cents": 11690,
    "history_days": 143,
    "price_levels": 216,
    "price_changes": 14,
    "distinct_prices": 9,
    "lowest_at": 1794478132463
  },
  "history": [
    {
      "price_cents": 10979,
      "from": 1789545487281,
      "to": 1789546371286
    },
    {
      "price_cents": 11299,
      "from": 1791314358404,
      "to": 1792027398401
    },
    {
      "price_cents": 13979,
      "from": 1792045939425,
      "to": 1792724446410
    },
    {
      "price_cents": 10734,
      "from": 1792741773758,
      "to": 1794471419954
    },
    {
      "price_cents": 9979,
      "from": 1794478132463,
      "to": 1794516260270
    }
  ],
  "last_seen": 1794516260270
}
// … 211 more steps in the full response

Normal 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.