Host-Powered vs Tethered vs Standalone

The most important usability difference many buyers miss.

The quick definition

  • Standalone: compute and battery are mostly in the glasses.
  • Host-powered: depends on an external device for power and/or compute.
  • Tethered host device: physically connected (often USB-C) during use.
  • Paired smartphone: wireless dependency on phone for core features.

Why this changes your buying decision

Runtime numbers are not apples-to-apples across these models. A host-powered device may show no onboard battery value, because its real runtime depends on your phone or laptop.

User use cases

  • Flight/movie use: host-powered can still be great if you already carry a power bank.
  • Walking/navigation use: fully tethered setups may feel restrictive.
  • Desk productivity: tethered can be fine and sometimes delivers better performance.
  • Minimal carry setup: prefer standalone or phone-paired models.

How we display this on product pages

We show dependency and compute locus separately from raw battery hours, so users can understand true portability and daily friction.