IO Hornet vs Zeus Arc GT4

The biggest practical difference is form factor: these aren't the same kind of device. IO Hornet is a desktop, Zeus Arc GT4 is a portable. Pick based on whether you want something portable or something stationary.

Zeus Arc GT4 reaches session-ready temperature in ~35 seconds, while the IO Hornet takes 3-5 minutes on a 16mm coil, longer on 20mm and 25mm adapters. That's roughly 205 seconds quicker on the Zeus Arc GT4, which is useful if you want shorter, on-demand sessions.

IO Hornet uses convection as an injector, hybrid with conduction as a diffuser heating, while the Zeus Arc GT4 uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.

Zeus Arc GT4 has the larger chamber at Up to ~0.4g in an ArcPod, spacer included for smaller loads, versus 0.08g to about 0.2g, around 0.15g for a full draw on the IO Hornet. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.

Zeus Arc GT4 is the take-anywhere choice. It's a portable, battery-powered unit, while the IO Hornet is built for home use, where bigger heaters, AC power, and larger chambers make sense.

Listed prices are close: $260 for the IO Hornet versus $260 for the Zeus Arc GT4. Day-to-day price will likely come down to whichever retailer is running a promotion.

IO Hornet controls heat with set on a separate pid controller, included only in the complete kit, while the Zeus Arc GT4 uses presets (6 herb levels, 3 wax levels). Both let you change temperature, just with different levels of precision.