Overview
Wearable technology demands extremely fine-pitch, flexible cabling that fits within compact wrist and body-worn form factors while surviving daily flexing and moisture exposure.

Design & Construction
Ultra-Fine-Pitch Flex Circuits
Ultra-fine-pitch FPC and micro-coax assemblies fit within compact smartwatch and wearable enclosures while maintaining reliable signal transmission.
Sweat and Moisture-Resistant Sealing
Moisture-sealed connections protect wearable electronics from sweat and daily washing exposure, supporting IP-rated wearable device designs.
Manufacturing Process
Built under ISO 9001 process controls with 100% continuity testing and RoHS 3 compliance, supporting wearable technology OEMs from prototype through high-volume consumer production.

Typical Applications
- Smartwatch board-to-board cabling
- Fitness tracker sensor wiring
- Wearable battery interconnects
- Heart rate and biometric sensor cabling
- Wireless charging coil connections
Common installations include Smartwatch board-to-board cabling, Fitness tracker sensor wiring, and Wearable battery interconnects, where signal integrity, EMI control, and compact flex-rated construction are the primary design drivers. The same base design can also be adapted for Heart rate and biometric sensor cabling and Wireless charging coil connections with minor changes to connector type or cable length.
Technical Specifications
Standard configurations are available with the following technical specifications; custom configurations outside these ranges can be discussed with our engineering team. Wire Gauge: AWG 36 – 30. Conductor Count: 2 – 16 circuits. Insulation: Ultra-fine-pitch FPC, biocompatible options. Temp Range: -10°C to +70°C. Sealing: Moisture-sealed, sweat resistant. Form Factor: Compact wrist-worn enclosure fit. Compliance: RoHS 3 compliant.
Quality & Certification
Manufactured under ISO 9001 certification and fully RoHS 3 compliant, with moisture-sealed options suited to daily-wear wearable device requirements.
Customization & Lead Time
Standard lead time for the Wearable Tech & Smartwatch Cable Assemblies is 4–6 weeks prototype, 2–3 weeks production reorder. Connector type, cable length, and conductor configuration can be customized to match your exact application, including connector type, cable length, and shielding configuration to match your device’s board layout and enclosure design. Contact our engineering team with your drawings or requirements for a project-specific quote.
Why XinHarness
Wearable tech cabling runs on the same fine-pitch FFC/FPC production lines as our broader consumer electronics programs, scaled down for wrist-worn form factors. See the Electronics industry page, or request a quote for your project. For related technical background, see our article on the benefits of twisted-pair wiring for reducing electromagnetic interference.
Frequently Asked Questions
Yes, shielded cable, braided or foil shielding, and ferrite options are available to control EMI/RFI in sensitive electronic applications.
We support a wide range of board-to-board, wire-to-board, and industry-standard connector families; provide your preferred connector part number or mating requirement and we will match it.
Yes, all our consumer and industrial electronics cable assemblies, including the Wearable Tech & Smartwatch Cable Assemblies, are manufactured using RoHS 3 and REACH-compliant materials.



