Price (USD)
Hydrology9 edgeHydrology9
$199
PAX 3
$250
Hydrology9 is typically around $51 lower.
Vaporizer Comparison
Hydrology9 vs PAX 3
Side-by-side specs, pricing context, and clear decision guidance.
Hydrology9
Cloudious9 $199
VS
PAX 3
PAX Labs $250
Editorial Summary
Hydrology9 and PAX 3 are both conduction / electronic vaporizers, but they target different priorities. Hydrology9 is usually the lower-cost pick at $199, around $51 below PAX 3. PAX 3 has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
22
Different Specs
20
Shared Specs
2
Overall Overlap
9%
Shared Traits
Conduction Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
PAX 3 edgeHydrology9
~1 minute
PAX 3
<30 seconds
PAX 3 has the quicker listed heat-up profile.
Heating Style
Close callHydrology9
Conduction
PAX 3
Conduction
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Hydrology9
$199
PAX 3
$250
Heat Up Time
Hydrology9
~1 minute
PAX 3
<30 seconds
Temperature Range
Hydrology9
250°F-430°F
PAX 3
182°C - 215°C (260°F - 420°F)
Chamber Capacity
Hydrology9
~0.5 grams
PAX 3
<0.35 grams
Battery Type
Hydrology9
Internal
PAX 3
Internal 18650
Battery Capacity
Hydrology9
2000mAh
PAX 3
3500mAh
Charging
Hydrology9
Micro USB
PAX 3
Proprietary Dock
Charge Time
Hydrology9
~2 hours
PAX 3
~90 minutes
Dimensions
Hydrology9
~4.5 x ~17.5cm
PAX 3
98mm x 31mm x 22mm
Power Adjustment
Hydrology9
Modular - 5 stage
PAX 3
Modular - 4 stages
Choose Hydrology9 if...
- You want the lower listed entry price ($199 vs $250).
- Your usage leans toward desktop sessions.
- You prefer Hydrology9's overall feature mix and form factor.
Choose PAX 3 if...
- You care about faster heat-up time for quicker sessions.
- Your usage leans toward portable and concentrates sessions.
- You prefer PAX 3's overall feature mix and form factor.
Spec Comparison Table
Direct comparison of every spec from each device profile.
20 differ 2 shared
| Specification | Hydrology9 | PAX 3 |
|---|---|---|
| Price (USD) | $199 | $250 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Conduction |
| Heat Up Time | ~1 minute | <30 seconds |
| Temperature Range | 250°F-430°F | 182°C - 215°C (260°F - 420°F) |
| Chamber Capacity | ~0.5 grams | <0.35 grams |
| Battery Type | Internal | Internal 18650 |
| Battery Capacity | 2000mAh | 3500mAh |
| Battery Life | — | ~90 minutes |
| Charging | Micro USB | Proprietary Dock |
| Charge Time | ~2 hours | ~90 minutes |
| Bluetooth / App | — | Yes |
| Dimensions | ~4.5 x ~17.5cm | 98mm x 31mm x 22mm |
| Weight | — | ~93 grams |
| Power Adjustment | Modular - 5 stage | Modular - 4 stages |
| Chamber Material | Ceramic | Stainless Steel |
| Concentrate Support | — | Yes |
| Brand | Cloudious9 | PAX Labs |
| Release Date | 2017 | 2016 |
| Session Style | Session | — |
| Warranty | 2 years | 10 years |
| Water Filtration | Yes | — |
Comparison FAQs
What is the biggest difference between the Hydrology9 and the PAX 3?
The biggest practical difference is heat-up speed: the PAX 3 is ready in <30 seconds versus ~1 minute on the Hydrology9, which changes whether it feels on-demand or scheduled.
Which is cheaper, the Hydrology9 or the PAX 3?
Hydrology9 is the cheaper option at $199 compared with $250 for the PAX 3, about $51 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the Hydrology9 or the PAX 3?
PAX 3 reaches session-ready temperature in <30 seconds, while the Hydrology9 takes ~1 minute. That's roughly 30 seconds quicker on the PAX 3, which is useful if you want shorter, on-demand sessions.
Does the Hydrology9 or the PAX 3 hold more flower?
Hydrology9 has the larger chamber at ~0.5 grams, versus <0.35 grams on the PAX 3. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Which charges faster, the Hydrology9 or the PAX 3?
PAX 3 fully charges in ~90 minutes, ahead of ~2 hours on the Hydrology9.
Which is more discreet, the Hydrology9 or the PAX 3?
PAX 3 is the better pick if low-profile use matters. It's tagged as stealth or pocket-friendly in our database, while the Hydrology9 is more conspicuous in hand and harder to keep out of sight.
How similar are the Hydrology9 and the PAX 3?
Across the 22 specs we line up, they share 2 and differ on 20, an overlap of about 9%. The differences are concentrated in the areas the spec table highlights with a marker.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.