Price (USD)
PAX FOUR edgeHot Rod
$340
PAX FOUR
$250
PAX FOUR is typically around $90 lower.
Vaporizer Comparison
Side-by-side specs, pricing context, and clear decision guidance.
Hot Rod
Old Head $340
PAX FOUR
PAX Labs $250
Hot Rod and PAX FOUR are both electronic vaporizers, but they target different priorities. PAX FOUR is usually the lower-cost pick at $250, around $90 below Hot Rod. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
25
Different Specs
25
Shared Specs
0
Overall Overlap
0%
Shared Traits
A quick snapshot of the specs people usually care about first.
Hot Rod
$340
PAX FOUR
$250
PAX FOUR is typically around $90 lower.
Hot Rod
Convection
PAX FOUR
Hybrid (conduction and convection)
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
Hot Rod
$340
PAX FOUR
$250
Device Type
Hot Rod
Desktop
PAX FOUR
Portable
Heating Type
Hot Rod
Convection
PAX FOUR
Hybrid (conduction and convection)
Temperature Range
Hot Rod
N/A
PAX FOUR
190-220°C (374-428°F)
Chamber Capacity
Hot Rod
~0.25g
PAX FOUR
~0.3g
Battery Type
Hot Rod
N/A
PAX FOUR
Internal lithium-ion
Charging
Hot Rod
N/A
PAX FOUR
USB-C
Power Adjustment
Hot Rod
Single Dial
PAX FOUR
Four preset heat modes (purple, green, yellow, orange)
Chamber Material
Hot Rod
Titanium
PAX FOUR
Stainless steel
Brand
Hot Rod
Old Head
PAX FOUR
PAX Labs
Typical price
$250
Sold by The Stash Shack
Prices are read automatically from retailer pages; confirm the price at checkout. Some links are affiliate links, which support Thermal Extractions at no extra cost to you.
Direct comparison of every spec from each device profile.
| Specification | Hot Rod | PAX FOUR |
|---|---|---|
| Price (USD) | $340 | $250 |
| Device Type | Desktop | Portable |
| Heating Type | Convection | Hybrid (conduction and convection) |
| Heat Up Time | — | 55-70 seconds |
| Temperature Range | N/A | 190-220°C (374-428°F) |
| Chamber Capacity | ~0.25g | ~0.3g |
| Battery Type | N/A | Internal lithium-ion |
| Battery Capacity | — | 2800mAh |
| Battery Life | — | Up to 5 sessions, about 50 minutes of run time |
| Charging | N/A | USB-C |
| Charge Time | — | ~90 minutes |
| Dimensions | — | 108 x 36 x 29mm |
| Weight | — | 125 grams |
| Power Adjustment | Single Dial | Four preset heat modes (purple, green, yellow, orange) |
| Chamber Material | Titanium | Stainless steel |
| Concentrate Support | — | No (not compatible with the PAX Concentrate Insert) |
| Brand | Old Head | PAX Labs |
| Adjustable Airflow | — | No (flat and raised mouthpieces change the draw) |
| Display Type | — | LED petals |
| Manufacturer | — | PAX Labs, Inc (model X410) |
| Power Adapter | AC Power | — |
| Power Usage | 18W (peak 60W) | — |
| Release Date | 2021 | 2026 |
| Session Style | — | Session |
| Warranty | — | 2 years, plus 1 year when registered within 30 days |
The biggest practical difference is form factor: these aren't the same kind of device. Hot Rod is a desktop, PAX FOUR is a portable. Pick based on whether you want something portable or something stationary.
PAX FOUR is the cheaper option at $250 compared with $340 for the Hot Rod, about $90 less. Live retailer pricing can shift, so confirm before buying.
Hot Rod uses convection heating, while the PAX FOUR uses hybrid (conduction and convection). Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
PAX FOUR has the larger chamber at ~0.3g, versus ~0.25g on the Hot Rod. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
PAX FOUR is the take-anywhere choice. It's a portable, battery-powered unit, while the Hot Rod is built for home use, where bigger heaters, AC power, and larger chambers make sense.
PAX FOUR is the better pick if low-profile use matters. It's tagged as stealth or pocket-friendly in our database, while the Hot Rod is more conspicuous in hand and harder to keep out of sight.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.