Price (USD)
Close callAUXO Celsius
$250
PAX FOUR
$250
Pricing is very close between both devices.
Vaporizer Comparison
AUXO Celsius vs PAX FOUR
Side-by-side specs, pricing context, and clear decision guidance.
AUXO Celsius
AUXO $250
VS
PAX FOUR
PAX Labs $250
Editorial Summary
AUXO Celsius and PAX FOUR are both portable / hybrid vaporizers, but they target different priorities. Their listed prices are close ($250 vs $250). AUXO Celsius has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
28
Different Specs
23
Shared Specs
5
Overall Overlap
18%
Shared Traits
Portable Hybrid Electronic Discrete
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
AUXO Celsius edgeAUXO Celsius
6-30 seconds
PAX FOUR
55-70 seconds
AUXO Celsius has the quicker listed heat-up profile.
Weight
PAX FOUR edgeAUXO Celsius
157.8g
PAX FOUR
125 grams
PAX FOUR is the lighter listed unit.
Heating Style
Close callAUXO Celsius
Hybrid (Primarily Conduction)
PAX FOUR
Hybrid (conduction and convection)
Heating style differs, which can impact flavor and extraction behavior.
Key Differences at a Glance
Top specs where these two devices diverge.
Heating Type
AUXO Celsius
Hybrid (Primarily Conduction)
PAX FOUR
Hybrid (conduction and convection)
Heat Up Time
AUXO Celsius
6-30 seconds
PAX FOUR
55-70 seconds
Temperature Range
AUXO Celsius
284°F - 500°F (140°C - 260°C)
PAX FOUR
190-220°C (374-428°F)
Chamber Capacity
AUXO Celsius
0.3g dry herbs or 0.05g when using concentrates
PAX FOUR
~0.3g
Battery Type
AUXO Celsius
Lithium-ion
PAX FOUR
Internal lithium-ion
Battery Capacity
AUXO Celsius
1100mAh
PAX FOUR
2800mAh
Battery Life
AUXO Celsius
~9 sessions
PAX FOUR
Up to 5 sessions, about 50 minutes of run time
Charge Time
AUXO Celsius
1.5 hours
PAX FOUR
~90 minutes
Dimensions
AUXO Celsius
114.1x45.1x33.3mm
PAX FOUR
108 x 36 x 29mm
Weight
AUXO Celsius
157.8g
PAX FOUR
125 grams
Choose AUXO Celsius if...
- You care about faster heat-up time for quicker sessions.
- You prefer a hybrid (primarily conduction) heating profile.
- Your usage leans toward conduction sessions.
Choose PAX FOUR if...
- You want the lighter unit for carrying and travel.
- You prefer a hybrid (conduction and convection) heating profile.
- You prefer PAX FOUR's overall feature mix and form factor.
Typical price
$250
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Spec Comparison Table
Direct comparison of every spec from each device profile.
23 differ 5 shared
| Specification | AUXO Celsius | PAX FOUR |
|---|---|---|
| Price (USD) | $250 | $250 |
| Device Type | Portable | Portable |
| Heating Type | Hybrid (Primarily Conduction) | Hybrid (conduction and convection) |
| Heat Up Time | 6-30 seconds | 55-70 seconds |
| Temperature Range | 284°F - 500°F (140°C - 260°C) | 190-220°C (374-428°F) |
| Chamber Capacity | 0.3g dry herbs or 0.05g when using concentrates | ~0.3g |
| Battery Type | Lithium-ion | Internal lithium-ion |
| Battery Capacity | 1100mAh | 2800mAh |
| Battery Life | ~9 sessions | Up to 5 sessions, about 50 minutes of run time |
| Charging | USB-C | USB-C |
| Charge Time | 1.5 hours | ~90 minutes |
| Bluetooth / App | Yes | — |
| Dimensions | 114.1x45.1x33.3mm | 108 x 36 x 29mm |
| Weight | 157.8g | 125 grams |
| Power Adjustment | Modular - 4 Stages (and an app controlled custom mode) | Four preset heat modes (purple, green, yellow, orange) |
| Chamber Material | Stainless Steel | Stainless steel |
| Concentrate Support | Yes | No (not compatible with the PAX Concentrate Insert) |
| Brand | AUXO | PAX Labs |
| Adjustable Airflow | — | No (flat and raised mouthpieces change the draw) |
| Body Material | Aluminum Alloy | — |
| Country of Manufacture | China | — |
| Display Type | — | LED petals |
| Haptic Feedback | Yes | — |
| Manufacturer | — | PAX Labs, Inc (model X410) |
| Mouthpiece Material | Zirconia | — |
| Release Date | 2023 | 2026 |
| Session Style | Session | Session |
| Warranty | 2 years (10 years under the 2023 manual) | 2 years, plus 1 year when registered within 30 days |
Comparison FAQs
What is the biggest difference between the AUXO Celsius and the PAX FOUR?
The biggest practical difference is heating approach: AUXO Celsius runs hybrid (primarily conduction) while PAX FOUR runs hybrid (conduction and convection). That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Which heats up faster, the AUXO Celsius or the PAX FOUR?
AUXO Celsius reaches session-ready temperature in 6-30 seconds, while the PAX FOUR takes 55-70 seconds. That's roughly 45 seconds quicker on the AUXO Celsius, which is useful if you want shorter, on-demand sessions.
What's the difference in heating between the AUXO Celsius and the PAX FOUR?
AUXO Celsius uses hybrid (primarily conduction) 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.
Does the AUXO Celsius or the PAX FOUR hold more flower?
PAX FOUR has the larger chamber at ~0.3g, versus 0.3g dry herbs or 0.05g when using concentrates on the AUXO Celsius. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Which is lighter, the AUXO Celsius or the PAX FOUR?
PAX FOUR is the lighter unit at 125 grams, around 33g less than the AUXO Celsius at 157.8g. The lighter device is easier to carry and pocket day-to-day.
Which is cheaper, the AUXO Celsius or the PAX FOUR?
Listed prices are close: $250 for the AUXO Celsius versus $250 for the PAX FOUR. Day-to-day price will likely come down to whichever retailer is running a promotion.
Can I use concentrates with the AUXO Celsius or the PAX FOUR?
Only the AUXO Celsius supports concentrates out of the box. The PAX FOUR is dry-herb-only by design.
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