A founder showed us a launch plan with 340 line items on it, built carefully, and he was right to be proud of it. Three hundred and ten of those lines had a circuit board, an enclosure or a factory somewhere in them. The remaining thirty sat under a heading called “post-launch”.
Those thirty lines were the company. The other 310 were the product.
Nobody sets out to underweight this. The device is the part you can see, demo, argue about and feel progress on. The rest arrives as obligations, each with a running cost and no end date. By the time your first container clears customs you have signed up for a software company, a logistics operation, a regulated packaging producer, a support desk and a liability position, and you will run all of them with the same eight people who designed the thing.
The app and the backend are a second product you never finish
A connected product ships with software attached to it forever. That software has its own release cadence, its own regulator, its own platform owners, and its own bill.
Take the cloud first. Ten thousand devices sending one message a minute costs roughly $596 a month on AWS IoT Core once you count messaging, connection minutes and rules engine triggers, or about $751 a month on Azure IoT Hub across three S2 units. Neither number is frightening. What catches people is device management: AWS charges around $0.10 per device per month for over-the-air updates, which adds $1,000 a month on that same fleet, more than the entire messaging bill. Your firmware update mechanism, the thing you built because it was obviously correct engineering, is the largest line in your cloud invoice.
Then the platforms move under you. Apple required the iOS 26 SDK or later for every App Store Connect upload from 28 April 2026. Google Play requires new apps and updates to target Android 16 (API level 36) from 31 August 2026, with existing apps needing API 35 to stay visible to new users and an extension available to 1 November. Neither change gives your customers a single new feature. Both are mandatory, both consume engineering weeks, and both recur roughly annually for as long as the product is on sale.
Published maintenance benchmarks put annual app upkeep at 15 to 20 per cent of original build cost, which is the number to use when someone tells you the app is “done”. For a €150,000 companion app that is €22,000 to €30,000 a year covering OS compatibility, security patches, crash triage and store policy work, none of which a customer would notice.
The Cyber Resilience Act converts a chunk of that maintenance from good practice into a legal duty with dates on it. We covered the CRA timeline and what it demands in the certification post, so we will not restate it here beyond the consequence: the declared support period, at least five years unless the product’s expected lifetime is shorter, means the maintenance line above is not optional and cannot be quietly dropped in year two when cash is tight.
Every unit you sell comes back with a question attached
Consumer electronics generates the heaviest support load of any ecommerce category. Published DTC benchmarks put it at 250 to 400 tickets per 1,000 orders, falling to somewhere around 70 to 130 for brands that have invested properly in self-service. At $2.70 to $5.60 per contact for retail and ecommerce, a company taking 10,000 orders a month is looking at something like $6,750 a month in support cost before it has bought a single tool.
Up to 30 per cent of that volume is people asking where their order is, which proactive tracking will deflect. The rest will not deflect. Connected products generate a class of ticket no shipping notification touches: the device will not pair, the app cannot see it, the update failed halfway, the Wi-Fi is 5 GHz and the radio is not. Answering those requires someone who understands the firmware, which means either an engineer on tickets or a support person you have trained deeply enough to be expensive to replace.
Plan the support function during architecture review. Every diagnostic you expose in the app, every clear error string, every log you can pull remotely with consent, removes a category of ticket permanently, and that work is cheap at design time and nearly impossible to retrofit into shipped hardware.
Returns are a physical process with a legal clock on it
Electronics returns run about 8 to 15 per cent of online orders against an overall ecommerce average near 19 to 20 per cent, which sounds like good news until you price the reverse leg. Handling a returned electronics item costs roughly $30 to $65 once you count inbound freight, inspection, testing, repackaging and restocking. On a €89 product with €30 of landed cost, one return can wipe out the margin on two sales.
In Europe you do not get to design your way out of this. Consumers buying at distance have 14 days to withdraw without giving a reason, and from 19 June 2026 you must give them a withdrawal button: a clearly labelled one-click mechanism, a confirmation page showing the contract details, an automatic acknowledgement by durable medium, and no retention calls, surveys or support-contact hurdles in the way. Get it wrong and the withdrawal window extends to twelve months.
Separately, the legal guarantee runs a minimum of two years across the EU, with repair or replacement as the first remedy before price reduction or refund. Two years of repair obligation on a sealed, glued, battery-powered device is a design constraint. If your enclosure cannot be opened without destroying it, every warranty claim becomes a full replacement, and your warranty reserve should be modelled at replacement cost rather than repair cost. Decide which of those two worlds you are in while the mechanical design is still soft.
What the channel takes before you see a cent
Amazon’s referral fee sits at 8 per cent for consumer electronics, which is why founders come away from the fee schedule feeling optimistic. The all-in picture is different. Direct fees for a typical seller run about 29 to 32 per cent of revenue, and with advertising the platform take reaches 50 to 60 per cent. A 3.5 per cent fuel surcharge went on top of every FBA fulfilment fee in the US and Canada on 17 April 2026, base fulfilment fees rose an average of $0.08 per unit in January, storage costs around $0.87 per cubic foot in standard months and close to triple that in Q4, and aged inventory surcharges start at 181 days.
Average selling price drives this more than category does. Core electronics around a $100 price point can hold direct Amazon fees near 13.5 per cent, because a roughly fixed per-unit fulfilment fee is a small fraction of a large order. Electronics accessories at low prices land near 27 per cent on the same fee schedule. A €39 connected gadget and a €139 connected gadget are not the same business on Amazon, and the cheaper one is usually the worse one.
Traditional retail takes its margin and then adds slotting fees, marketing co-op and chargebacks; an earlier post in this series priced what the resulting cash cycle does to you. D2C looks like the escape until you price the parcels. Electronics shipping on your own site runs about 6 to 12 per cent of net revenue, and parcel rates have gone one direction: UPS raised base rates 5.9 per cent on 22 December 2025, FedEx matched on 5 January 2026, USPS raised Ground Advantage 7 to 8 per cent in January and then tightened its dimensional weight divisor from 166 to 139 on 12 July 2026, which raises billable weight on bulky boxes without touching the published rate. The US parcel price index hit a record in April 2026, up 54.2 per cent since December 2019.
Every channel takes a different third of your revenue for a different reason. Pick two and model them separately down to contribution margin per unit, because a product that works at 40 per cent through your own site can be underwater at 55 per cent through a marketplace.
Acquisition got more expensive and the device only sells once
Meta advertising costs in 2026 average $14.19 CPM, up 20.1 per cent year on year, with cost per acquisition at $38.19, up 38.1 per cent, against a click-through rate that fell to 1.55 per cent. Electronics specifically sits at $12.88 CPM and $49.48 CPA. Broader DTC acquisition costs rose 40 to 60 per cent between 2023 and 2025, on top of the estimated 30 to 50 per cent jump in Meta CAC that followed the iOS 14.5 privacy changes in 2021.
The structural problem for hardware is repeat purchase. A skincare brand paying a $42 CAC recovers it across four orders a year. You sell one device, possibly ever. Healthy DTC payback sits at 90 to 180 days, which for a single-purchase product means the first sale has to cover acquisition outright, alongside COGS, the channel cut, support, returns reserve and the cloud bill. Run that on your intended retail price before you commit to it, because it decides whether accessories, consumables or a service attach are optional or load-bearing.
The box is a regulated product with its own registrations
On 12 August 2026, the EU Packaging and Packaging Waste Regulation started to apply. From that date, packaging placed on the EU market needs an EU Declaration of Conformity, manufacturer or importer identification and contact details on the packaging itself, compliance with heavy metal limits, and EPR registration in each relevant member state. There is no grace period for new stock. More lands later: harmonised material composition labelling from 12 August 2028, and in 2030 recyclability grades, minimum recycled content and an obligation for online sellers to offer a reusable shipping option at checkout.
Underneath the packaging rules sits the older, messier problem. Extended producer responsibility is still national. Germany means registering with LUCID. France has the widest scope in Europe. The Netherlands, Belgium, Spain, Italy, Austria and Sweden all maintain separate registers with their own formats and deadlines. Add WEEE registration for the device and battery registration under the Batteries Regulation, each per country, each needing an authorised representative if you are not established there, and a company selling into six EU markets is maintaining north of a dozen active registrations with recurring reporting.
This is nobody’s favourite job and it is the most common thing missing from a first-time founder’s launch budget. It also tends to surface as a marketplace listing suspension rather than a polite letter.
The org chart you cannot afford yet
Count the disciplines a connected product company needs: electronics, mechanical, firmware, mobile, backend, quality and test, supply chain, compliance, support, logistics, marketing, finance. Twelve. A seed-stage team has maybe six people. Founders and contractors cover the gap, and the failure mode is predictable: the disciplines with no visible owner are the ones that produce the launch-week surprise.
European salaries help a little. Self-reported embedded engineering pay in the Netherlands averages around €54,000, though the sample behind that figure is thin enough to treat as an order of magnitude rather than a benchmark, and senior firmware people with production experience command well above it. The scarce hires are not the engineers anyway. They are the operations person who has run reverse logistics before, and the quality person who has stood on a line in Shenzhen and stopped it.
Liability now includes your firmware
The revised EU Product Liability Directive must be transposed into national law by 9 December 2026, and it changes the shape of the risk. Software and digital elements are explicitly products. Failure to supply security updates can make a product defective. The old €500 property damage threshold is gone, financial caps are gone, corruption of personal data is compensable, and claimants can compel disclosure of your technical evidence, with rebuttable presumptions running against you when a product malfunctions in foreseeable use. Importers, authorised representatives, fulfilment providers and distributors can all be held strictly liable.
Read that alongside the five-year update obligation and the picture is clear: a firmware vulnerability you leave unpatched in year four is not just a compliance problem, it is a route to a product liability claim.
Insurance is the cheap part of the answer and worth arranging early. US small business data puts general liability, which typically bundles product liability, at an average of about $45 a month, with ecommerce retailers near $46. Treat that as a floor rather than a quote. A European hardware company with a lithium cell in the product and open EU distribution will pay considerably more, and the underwriter will want your test reports, your traceability and your recall plan before quoting at all. Assembling that pack is a week of work now or a month under pressure.
Count the company, not the product
Go back to the 340-line plan. The honest version has the same 310 engineering lines, plus a cloud bill that starts the day the first device connects, an app that needs a platform-mandated release every year, a support desk sized to 250 tickets per 1,000 orders, a returns process priced at $30 to $65 a unit, EPR registrations in every market you sell into, a channel taking somewhere between 30 and 60 per cent, acquisition costs that rose 38 per cent last year alone, and a liability regime that treats your firmware as part of the product.
None of that is unusual, and none of it is a reason to avoid hardware. The founders who get into trouble are the ones who priced the device and assumed the company was free. Before you freeze the BOM, write down what the company looks like in year three: how many people, doing what, funded by which margin. If the answer is that a €30 landed cost and a €99 shelf price supports twelve disciplines and a five-year software obligation, you have a business. If it does not, the number to change is the price, and the time to change it is now, while the tooling is still a quote.
Sources
- What Percentage Does Amazon Take? The Real Numbers for 2026 — ZonGuru
- Average FBA Fees as a % of Revenue by Category (2026) — Eightx
- Average ecommerce shipping cost as a percent of revenue, by vertical (2026) — Eightx
- 2026 Carrier Rate Increases: What Shippers Need to Know — ShipperHQ
- What Retailer Margin Do Buyers Expect From Suppliers? — ASINBuyer
- Ecommerce Return Rates in 2026: Benchmarks by Category — Richpanel
- Support tickets per 1,000 orders: the DTC benchmark nobody publishes — Eightx
- From Checkout to Opt-Out: The EU Withdrawal Button Is Here — Crowell & Moring
- Consumer guarantees, warranties, claims and returns — Your Europe
- PPWR compliance deadlines explained: what applies from August 2026 — Coolset
- EPR Compliance in the EU: 2026 Guide — Complir
- EU Product Liability Directive: Responding to Software, AI and Complex Supply Chains — Gibson Dunn
- Directive (EU) 2024/2853 on liability for defective products — EUR-Lex
- Upcoming SDK minimum requirements — Apple Developer News
- Meet Google Play’s target API level requirement — Android Developers
- AWS IoT Core vs Azure IoT Hub Pricing: What 10,000 Devices Actually Costs — Hubble Network
- AWS IoT Core Pricing
- How Much Does It Cost to Maintain an App: Full Guide for 2026 — Cleveroad
- Meta Ads Benchmarks 2026: CPM, CPC, CPA & CTR by Industry — Ryze
- DTC Customer Acquisition Cost Benchmarks (2026 Data) — Talk Shop
- Product Liability Insurance Cost — Insureon
- Embedded Salaries in the Netherlands — TechPays Europe