---

---

The Cost Components Behind Every Unit

Every adult wellness product from a Chinese OEM factory has seven cost components. Understanding each one tells you where savings are possible and where the cost is genuinely fixed.

---

Unit Cost by Quantity: Entry-Tier Single-Motor Device

Entry tier: single-motor bullet or basic rabbit vibrator. IPX5. CE and RoHS certified. Standard silicone + ABS. Logo on product, standard retail tuck box, bilingual insert. EXW Dongguan.

---

Unit Cost by Quantity: Mid-Range Dual-Motor Rabbit Vibrator

Mid-range tier: dual-motor rabbit vibrator. 10+ vibration modes. IPX5. CE and RoHS certified. Logo on product, custom-colour retail box, trilingual insert. The most common private label first-order product. EXW Dongguan.

---

Unit Cost by Quantity: Premium App-Controlled BLE Device

Premium tier: BLE 5.0 app-controlled device. Custom vibration patterns. White-label app capability. IPX5. CE, RoHS, and FCC certified. Premium magnetic-closure gift box. EXW Dongguan.

---

What Packaging Choice Does to Unit Cost

Packaging is the second-largest variable after order quantity. Most buyers underestimate how much box specification affects per-unit cost — and how much it affects the buyer's perception of brand positioning.

---

The arithmetic only points one way: a percentage won at EXW is a much smaller percentage of landed cost, while a percentage won on freight or duty is a straight addition to margin. That is why experienced buyers negotiate the two long layers — consolidation and HTS classification — before they reopen the unit price. The Incoterms comparison explains which party controls each layer, and the landed-cost guide prices the duty layer for 2026.

True Landed Cost: From EXW to Amazon FBA

The EXW unit cost is only the starting point. Buyers who build their P&L on EXW cost consistently underestimate their actual landed cost. Here is a complete cost build-up for a mid-range dual-motor device at 500 units, shipping sea freight to Amazon FBA US:

---

First Order vs Repeat Order Economics

The economics of your first private label order are materially different from a repeat order. Understanding this difference is important for setting your initial budget expectation correctly.

First order costs that do not recur: sample order (USD 50–200 for 1–3 units before committing to bulk); packaging artwork design (USD 300–800 for professional designer); packaging print setup fees if any premium finishes are used (USD 100–400 one-time); brand trademark registration in target markets (USD 700–1,400 for US and EU combined); pre-shipment inspection if using SGS or QIMA (USD 300–500).

These one-time costs add approximately USD 1,500–3,300 to your first-order budget that will not appear in subsequent orders. At 500 units, this represents USD 3.00–6.60 per unit in amortised first-order costs. Your second order will have better economics even at the same production cost.

---

The Hidden Costs That Sit Between the Quote and the Shelf

The unit cost a factory quotes is real but incomplete. Between the EXW figure and a customer holding your product, a series of costs appear that first-time private label buyers almost always under-budget. Payment terms: paying by PayPal or credit card instead of T/T bank transfer adds a 3–5% surcharge that never appears in the quoted price. Payment processing: once you sell, adult products require a high-risk merchant account at 4.5–7% processing versus the 2.9% standard rate — our marketing and payments guide models the full impact on margin. Compliance testing: third-party material, waterproof, and certification reports run USD 200–800 per SKU per cycle, and batch-specific documentation adds to that. Pre-shipment inspection: an independent SGS or QIMA check costs USD 300–500 per order and is the cheapest insurance available against a bad bulk shipment. Tooling: custom mold fees of USD 3,000–8,000 are one-time but amortise only if you plan repeat orders. Import duties and VAT: payable at customs at the destination rate — 20% VAT in the UK, 21% in Germany, 10% GST in Australia — on the declared value, not the factory price.

Total these against a 500-unit first order and the landed cost per unit lands 25–40% above the quoted EXW figure. The discipline is to budget the true landed cost before deciding the retail price, not after the first shipment — because a pricing model built on the EXW figure quietly turns a profitable product into a break-even one the moment the real invoices arrive.

MOQ Elasticity: What Each Tier Actually Saves

Unit cost falls as quantity rises, but the curve is not linear, and the savings concentrate at the two thresholds that matter. From 300 to 500 units, unit cost drops roughly 15–20% because minimum material batches and machine set-up costs amortise faster. From 500 to 2,000 units, the drop is a further 35–45% on the baseline. The practical guidance: order at 500 if you are validating a first SKU, and at 1,000–2,000 only once sell-through data confirms the product. The per-tier numbers for three representative product classes — entry single-motor, mid-range dual-motor rabbit, and premium app-controlled BLE — are tabulated above, and our MOQ guide explains the tier structure in full.

Payment Terms, Processing Fees, and Working Capital

How you pay the factory shapes both risk and unit cost. The standard structure is 30% T/T deposit to start production and 70% balance released after pre-shipment inspection passes — never 100% upfront, and never PayPal unless the small surcharge is worth the convenience. On your own sales side, remember that cash is tied up for the entire replenishment cycle: production, freight, and marketplace check-in run 65–100 days door-to-door, which means a 500-unit order funds itself only after the first sell-through. Repeat buyers who build clean payment history can often negotiate 20/80 terms or net payment windows, and the savings compound across the year. The working-capital math — including reorder triggers and safety stock — is covered in our inventory timing guide.

A Worked Backward-Pricing Example

Anchor the whole exercise with a worked example. Target retail price USD 49.99 on Amazon, with a 15% referral fee (USD 7.50) and a target gross margin of 55% (USD 27.50). That leaves a maximum allowable landed cost of roughly USD 15.00 per unit — meaning your factory unit cost must sit near USD 10.50–12.00 after freight, duties, and inspection, not before. Working the tiers above, an entry single-motor device at 500 units clears that ceiling; the same device at 300 units, with PayPal payment and premium packaging, does not. The ceiling, not the catalogue, decides which SKU and which spec you can actually afford. Our wholesale pricing breakdown walks the full build-up line by line.

Where Cheaper Quotes Hide Their Risk

Two quotes can differ by 25% for the identical product, and the difference almost always lives in the same three places. Material substitution: the lower quote is food-grade silicone on the sample and a phthalate-containing TPE blend in bulk — the classic bait-and-switch that Reddit and forum threads document constantly, and the reason batch-specific material reports and pre-shipment inspection are non-negotiable. Motor downgrade: a no-name motor at 60 dB instead of a quiet, branded motor under 45 dB, which costs pennies at the factory and destroys the product's perceived quality. Documentation omission: the cheaper supplier simply does not provide CE, RoHS, and material test reports, leaving you to self-certify at your own risk and expense. When a quote is meaningfully below the reference band for its tier, ask which of the three is giving — and require the answer in writing before any deposit. The verification framework is in our manufacturer verification guide.

One discipline separates a defensible quote from a merely low one: demand the cost structure in the units you will actually compare. Ask for the EXW unit price, the packaging cost, the carton dimensions and gross weight, and separate BOM lines for the motor, the silicone shell and the PCB assembly. A quote that bundles those lines into one number cannot be benchmarked across three factories, and it cannot be audited when the reorder price comes in higher than the first order. The BOM costing sheet walkthrough shows what that breakdown should look like line by line.

Cost Benchmarks to Keep in Your Pocket

Memorising a handful of reference figures turns quote evaluation from guesswork into pattern-matching. A standard single-motor rabbit vibrator at 500 units, private label with a standard retail box, EXW Dongguan, runs roughly USD 6.60–9.50 per unit; food-grade silicone vibrators and body massagers land at USD 10–18 factory-direct; a premium app-controlled device sits at USD 18–35. Packaging adds USD 0.40–0.65 for a standard box and USD 1.80–3.50 for a magnetic rigid box. Tooling runs USD 3,000–8,000 for a custom mould. Inspection adds USD 300–500, compliance testing USD 200–800 per cycle. These are the numbers a professional buyer uses to spot a quote that is too good to be true — and, just as often, a quote padded with costs the brief did not actually require. Keep the benchmarks next to every quotation you evaluate; over a year of orders, the ability to read a quote against reference pricing is worth more than any single negotiation win, and it compounds every time you brief a new supplier.

How to Use This Data

Use the cost tables above to build your P&L before contacting a manufacturer. Know your target retail price, your target platform (Amazon, Shopify, wholesale), and your capital budget. Then work backwards: if your retail price is USD 49.99 and your target gross margin is 55%, your maximum allowable landed cost is USD 22.50. That ceiling tells you which product tier is viable at which quantity and which packaging specification you can afford.

Evokomoribi provides itemized quotations for all private label orders: unit cost, packaging cost, one-time tooling fees, and estimated freight — on a single document. Contact our sales team to receive a quotation for the specific product and packaging specification you are evaluating.

For the end-to-end path, see our step-by-step private label launch guide.

Packaging can swing your landed cost meaningfully. See private label packaging box styles and print MOQ before quoting.

The landed cost in these tiers moves whenever U.S. duty changes: see our 2026 U.S. tariff reset guide for the dated sequence that now adds roughly 12.5 percent on top of the 2018 Section 301 lists.

References

• Wikipedia, Bill of materials — the structured component list that underpins any unit-cost model.
• [Ulrich & Eppinger, 2016] Karl T. Ulrich and Steven D. Eppinger, Product Design and Development, 6th edition, McGraw-Hill, 2016 — cost modelling and the effect of volume on tooling and piece price.