| Optics and display | Optical engine, lenses, and—on display-equipped models—a waveguide or reflective combiner | Optical alignment, lens and coating production, display integration, and image-quality inspection | Request field-of-view, brightness, eye-box, prescription-lens compatibility, and optical-uniformity test data where applicable. | Optical choices affect readability, appearance, power consumption, and fit. |
| Compute and connectivity | Processors, memory, wireless radios, antennas, and supporting circuit boards | Board assembly, component integration, firmware loading, and radio-frequency testing | Check supported wireless standards, operating-system compatibility, update policy, and destination-market radio approvals. | Connectivity and computing determine which on-device and connected features can run reliably. |
| Camera, audio, and sensors | Image sensors, microphones, speakers, inertial sensors, and related modules | Module fitting, acoustic tuning, camera calibration, sensor checks, and privacy-indicator integration when designed into the product | Evaluate recording controls, indicator behavior, audio clarity, camera performance, and privacy documentation. | These parts support voice interaction, capture, and context-aware functions. |
| Battery and power management | Rechargeable battery cells, charging circuitry, protection components, and power-management firmware | Cell integration, charging tests, battery-protection checks, and runtime validation under defined test conditions | Ask how runtime is measured, whether batteries are replaceable, and for applicable battery transport and safety documents. UN 38.3 applies to lithium batteries transported by air and other modes covered by the rules. | Small frames limit available battery volume, making power use and thermal behavior important. |
| Frame and mechanical parts | Frame, temples, hinges, nose pads, and component enclosures | Molding or machining, surface finishing, hinge assembly, dimensional inspection, and fit checks | Review material specifications, weight, fit options, hinge-cycle testing, finish consistency, and spare-part availability. | Comfort, durability, and component placement depend on frame design and assembly quality. |
| Software and AI integration | Device firmware, companion applications, voice interfaces, and optional cloud-based AI services | Feature integration, device-app pairing, localization, security testing, and software release management | Clarify supported languages, data-processing locations, account requirements, update commitments, and behavior when offline. | AI features may depend on connectivity, cloud services, supported languages, and ongoing software maintenance. |
| Assembly and quality control | Integrated optical, electronic, acoustic, battery, and frame assemblies | Electronics assembly, final integration, functional testing, cosmetic inspection, and packaging checks | Request a documented inspection plan, sample test reports, traceability details, defect-handling process, and agreed acceptance criteria. | Consistent testing helps identify assembly faults before shipment and supports repeatable production. |
| Compliance and export readiness | Product labels, technical files, safety information, packaging, and market-specific documentation | Testing and documentation against requirements applicable to the product configuration and sales destination | Confirm which requirements apply in each market. Depending on the product and destination, checks may include radio approvals, EMC and electrical safety, chemical restrictions such as RoHS or REACH, and required consumer labeling. | Requirements vary by market and product; verify certificates and test reports against the exact model being purchased. |