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Placeholder Image 1: Zimetrix in hand with the app open showing the force-time curve (replace with real photo)

We build connected devices.
End to end.

Electronics, firmware, iOS/Android apps and cloud, one team, one accountable partner. We ship our own certified health & fitness devices, so we know what it takes to ship yours.

Book a 30-min technical review Watch our device in action (90s)

15+ years shipping hardware Medical devices & embedded systems ISO 13485 / ISO 9001 know-how Electrical safety (IEC 60601) iOS + Android + Cloud

Hardware is where software teams fail

A demo that works on a bench is 20% of the way. We ship our own devices, we know the other 80%.

The firmware graveyard

Your app agency quoted the project, then discovered BLE reconnection, OTA updates and battery life. Now you're 8 months late.

Five vendors, zero owners

PCB house, firmware freelancer, app agency, cloud consultant… and nobody owns the product actually working.

Prototype ≠ product

A demo that works on a bench is 20% of the way. Certification, manufacturing files and field reliability are the other 80%.

How we work:
no surprises, real results

  • We listen, ask the right questions and understand your problem before proposing anything. We define the scope clearly so there are no surprises down the road.
  • We design the electronics, firmware, app and cloud architecture, and build a first working prototype before committing production budget.
  • We build with quality, user focus and incremental deliveries. You have full visibility of progress at all times, no black boxes, no last-minute surprises.
  • We prepare manufacturing files, manage the necessary certification and launch to production. We don't disappear afterward: we monitor, iterate and support with real field usage data.
Placeholder Image 6: workbench with oscilloscope, PCB and laptop with firmware (replace with real photo)

What we build,
end to end

1-2 weeks · from $2,500

Technical Discovery

A fixed-scope audit of your device: architecture, feasibility, risks and a real budget for the full build. You keep everything we produce, whether you build with us or not.

8-12 weeks

Working Prototype

From idea or rough proof-of-concept to a working device: electronics, BLE firmware and a companion app. The milestone that unlocks investors, preorders and production quotes.

Monthly

Full Product & Dedicated Team

Your embedded engineering department: firmware, apps, cloud and manufacturing support, on a monthly retainer. We stay until it ships, and after.

PCB design Embedded systems & firmware (ESP32, Nordic, STM32) BLE / MQTT / OTA Load cells & biosensors Medical device development (ISO 13485 / ISO 9001 know-how) Electrical safety & compliance (IEC 60601) iOS + Android (native & React Native) Next.js dashboards AWS/GCP cloud 3D printing & enclosure design Certification support (CE/FDA/ANMAT experience)

Projects we've
built

Placeholder Image 1: Zimetrix with the app open (replace with real photo) Placeholder Image 2: Zimetrix disassembled, electronics flat lay (replace with real photo) Placeholder Image 3: Zimetrix app screenshots (replace with real photo)

Sports & rehabilitation · Own product

Zimetrix

Our own product: a smart isometric dynamometer measuring max force, RFD and bilateral symmetry. We designed everything, load-cell electronics, BLE firmware, iOS/Android apps, cloud sync and the e-commerce site. From napkin sketch to manufacturing files.

Electronics Firmware (BLE) iOS/Android Cloud Own product
90-second demo (video pending recording) Visit site
Placeholder Image 4: Tekmedical professional electrostimulator (replace with real photo) Placeholder Image 5: Tekmedical PCB or manufacturing process (replace with real photo)

Medical devices · 15+ years

Tekmedical Argentina

15+ years designing and manufacturing certified electro-medical devices (EMS, pressotherapy, IPL) sold to clinics and professionals across Argentina. Full ownership: electronics, embedded firmware, electrical safety testing, quality systems (ISO 13485 / ISO 9001), manufacturing and support. This is where we learned what "shipping hardware" really means. We also built and run their e-commerce site.

Medical device Electronics ISO 13485 / 9001 Electrical safety Manufacturing 15+ years
Visit site

Also built by us

Astroteca

A web platform that generates real birth charts from astronomical ephemeris data, with AI-assisted conversational analysis, developed together with a professional astrologer.

Next.js AI
Visit site

2

own products shipped

15+

years of hardware

4

disciplines in-house (electronics · firmware · apps · cloud)

ISO 13485/9001

quality know-how

100%

remote, US/EU time zones

About us,
zzlabs

zzlabs is two brothers who've been building physical products together for 15+ years. One of us comes from electronics and medical devices, designing, certifying and manufacturing electro-medical equipment under our brand Tekmedical, working under ISO 13485 and ISO 9001 quality systems and medical electrical-safety standards (IEC 60601). The other comes from software and embedded systems, firmware, apps, web platforms and cloud for some of Europe's largest companies.

Together we cover the entire stack of a connected device: the board, the firmware, the app, the cloud, and the paperwork that lets you actually sell it. We're engineers who ship our own products, Zimetrix is the latest, so we treat your product like it's ours.

Placeholder Image 8: the two zzlabs founders in the workshop (replace with real photo)

Book a free 30-minute technical review

Bring your product, we'll tell you honestly what it takes to ship it. No sales pitch: 30 minutes of engineering.

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FAQ

Frequently Asked Questions

  • Remote-first, with 4-6 hours of overlap with US time zones and full overlap with Europe. Weekly demos, shared Slack, everything in writing. The first step is always a small paid discovery, so you can evaluate us with near-zero risk.
  • A technical discovery starts at $2,500. Working prototypes typically run $25k-$60k depending on complexity. Full product development is usually a monthly dedicated-team retainer. We give a fixed quote after discovery, no surprises.
  • We design PCBs, write embedded firmware, build the apps and run the cloud. We manufacture our own certified medical devices. Ask us about load cells, BLE edge cases or battery budgets, that's the fun part.
  • Yes, and it's common: a Kickstarter that outgrew its freelancer, an app agency that hit the firmware wall. We audit what exists and tell you what's salvageable.
  • Yes. We've certified and manufactured our own medical devices, working under ISO 13485 and ISO 9001 quality systems and electrical-safety standards (IEC 60601). We design with compliance in mind from day one (which is far cheaper than retrofitting it), prepare your files for production, and work with your factory or help you find one.
  • It changes everything, and it's our home turf: risk-based design, quality documentation, electrical safety and the difference between a "wellness" and a "medical" claim. We help you decide the regulatory path before you burn budget on the wrong one.