PAX FOUR Review (2026): Is PAX's Most Powerful Vaporizer Worth It?

The PAX FOUR is the most powerful portable dry herb vaporizer PAX has ever released, using a new high-output hybrid heater to produce roughly 50% more vapor than any previous PAX device. It launched March 3, 2026 at a $250 MSRP in Onyx and Greenstone finishes, and it is aimed squarely at experienced users who want dense clouds and simple, one-button control. This review covers the full specs, the four heat modes, battery life, cleaning, and how the PAX FOUR compares to the devices most buyers weigh it against.

What is the PAX FOUR?

The PAX FOUR is a portable, session-style dry herb vaporizer and the flagship of PAX's 2026 lineup. According to the manufacturer, it is "the most powerful dry herb vaporizer we've ever created," built around a redesigned oven and a high-output hybrid heating system. It keeps the pocket-friendly PAX form factor and button-driven simplicity the brand is known for, while stepping up vapor density for users who found earlier PAX models too light. At 4.4 oz with a 0.3g stainless steel oven, it sits between everyday portability and desktop-grade output.

PAX FOUR specs at a glance

How does the PAX FOUR heat dry herb?

The PAX FOUR uses a hybrid heater that combines conduction, where ground material sits against the hot oven wall, with convection, where heated air passes through the load. This is a meaningful departure from earlier PAX models, which relied primarily on conduction. According to PAX, the high-output hybrid heater is what enables the roughly 50% jump in vapor production over the PAX 2, PAX 3, PAX PLUS, PAX MINI, and PAX FLOW. In practice, hybrid heating tends to deliver denser, more consistent vapor across a session than pure conduction, which is the core reason to consider the FOUR over a cheaper PAX.

What are the four heat modes?

The PAX FOUR has four color-coded heat modes that you cycle through with a quick press of the control button, each tuned for a different kind of session:

• Purple — minimal, discreet vapor for low-key sessions.
• Green — conserves material and extends session length.
• Yellow — prioritizes flavor with smooth, moderate vapor.
• Orange — maximizes vapor production for the densest clouds.

All four modes use PAX's patented temperature control and an auto-shutoff safety feature. The device is designed to power off if it exceeds a safe temperature threshold and resume once it has cooled, so you get big-cloud output without babysitting the unit.

How long does the PAX FOUR battery last?

The PAX FOUR's 2800 mAh battery delivers up to five sessions, or about 50 minutes of continuous run time, on a full charge. It recharges over USB-C in roughly 100 minutes, and PAX offers an optional magnetic charging cable and a charging dock as separate accessories. Real-world battery life depends on which heat mode you use, since Orange draws more power than Purple or Green. For most users, that translates to a day or two of moderate use between charges.

Is the PAX FOUR easy to clean?

The PAX FOUR's oven was redesigned specifically to simplify cleaning, with no small removable parts or reassembly puzzle. PAX recommends letting the oven and screen cool for about 10 minutes after use, then wiping down the chamber and running a cleaning tool through the vapor path. The refined oven lid also improves airflow and makes loading easier. One note for concentrate users: the PAX FOUR is not compatible with the older PAX Concentrate Insert, so it is a dry-herb-only device.

PAX FOUR vs Mighty+ vs PAX FLOW

The PAX FOUR sits between PAX's own lineup and premium hybrid portables like the Storz & Bickel Mighty+. Here is how the three most-cross-shopped options compare at a glance:

Short version: choose the PAX FOUR if you want the biggest clouds PAX makes with dead-simple controls; choose the Mighty+ if you want the closest thing to desktop vapor in a portable and don't mind the size; choose the PAX FLOW if discretion and a slimmer profile matter more than raw output. For the full head-to-heads, see our PAX FOUR vs Mighty+ and PAX FOUR vs PAX FLOW comparisons.

Who should buy the PAX FOUR?

The PAX FOUR is the right pick for experienced users who liked the PAX form factor but wanted more vapor, and for anyone who prefers a simple, button-driven device over full temperature control. It is likely overkill for a first-time user on a tight budget, where the PAX MINI or a value portable makes more sense, and it is not the choice for concentrate fans, since it runs dry herb only. If dense clouds, easy cleaning, and pocketability are your priorities, the FOUR delivers on all three. You can see current pricing and colors on the PAX FOUR product page or browse the full PAX collection.

Frequently asked questions

How much does the PAX FOUR cost?

The PAX FOUR has a $250 MSRP and is available in Onyx and Greenstone colorways.

Is the PAX FOUR better than the PAX PLUS?

Yes, for vapor output. PAX states the FOUR produces about 50% more vapor than the PAX PLUS thanks to its new hybrid heater, whereas the PLUS uses conduction heating. The PLUS remains a lighter, lower-cost option.

Can the PAX FOUR be used with concentrates?

No. The PAX FOUR is a dry herb vaporizer only and is not compatible with the PAX Concentrate Insert used by older models.

How long does the PAX FOUR take to heat up?

The PAX FOUR typically reaches vaping temperature in about 55 to 70 seconds, depending on the selected heat mode.

Does the PAX FOUR use USB-C?

Yes. The PAX FOUR charges over USB-C and reaches a full charge in roughly 100 minutes.