Price (USD)
Hydrology9 edgeHydrology9
$199
PAX FLOW
$350
Hydrology9 is typically around $151 lower.


Side-by-side vaporizer comparison including specs, pricing context, and decision guidance.
Hydrology9 and PAX FLOW are both electronic vaporizers, but they target different priorities. Hydrology9 is usually the lower-cost pick at $199, around $151 below PAX FLOW. PAX FLOW has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
16
Different Specs
15
Shared Specs
1
Overall Overlap
6%
Shared Traits
Quick snapshot of the specs people usually care about first.
Hydrology9
$199
PAX FLOW
$350
Hydrology9 is typically around $151 lower.
Hydrology9
~1 minute
PAX FLOW
30-45 seconds
PAX FLOW has the quicker listed heat-up profile.
Hydrology9
—
PAX FLOW
135 grams
Weight is close enough that portability is likely similar.
Hydrology9
Conduction
PAX FLOW
Hybrid (conduction + convection)
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
Hydrology9
$199
PAX FLOW
$350
Heating Type
Hydrology9
Conduction
PAX FLOW
Hybrid (conduction + convection)
Heat Up Time
Hydrology9
~1 minute
PAX FLOW
30-45 seconds
Temperature Range
Hydrology9
250°F-430°F
PAX FLOW
180°C - 225°C (356°F - 437°F)
Chamber Capacity
Hydrology9
—
PAX FLOW
0.25g - 0.35g
Battery Capacity
Hydrology9
2000mAh
PAX FLOW
2000mAh (internal)
Charge Time
Hydrology9
~2 hours
PAX FLOW
~20 minutes to 50%, ~40 minutes to full (USB-C)
Dimensions
Hydrology9
~4.5 x ~17.5cm
PAX FLOW
107mm x 34.5mm x 29mm
Weight
Hydrology9
—
PAX FLOW
135 grams
Power Adjustment
Hydrology9
Modular - 5 stage
PAX FLOW
Five petal modes + Bong Mode
Direct comparison of shared and unique specifications from each device profile. (15 differences, 1 overlaps)
| Specification | Hydrology9 | PAX FLOW |
|---|---|---|
| Price (USD) diff | $199 | $350 |
| Device Type | Portable | Portable |
| Heating Type diff | Conduction | Hybrid (conduction + convection) |
| Heat Up Time diff | ~1 minute | 30-45 seconds |
| Temperature Range diff | 250°F-430°F | 180°C - 225°C (356°F - 437°F) |
| Chamber Capacity diff | — | 0.25g - 0.35g |
| Battery Capacity diff | 2000mAh | 2000mAh (internal) |
| Charge Time diff | ~2 hours | ~20 minutes to 50%, ~40 minutes to full (USB-C) |
| Dimensions diff | ~4.5 x ~17.5cm | 107mm x 34.5mm x 29mm |
| Weight diff | — | 135 grams |
| Power Adjustment diff | Modular - 5 stage | Five petal modes + Bong Mode |
| Brand diff | Cloudious9 | PAX Labs |
| Chamber Size diff | ~0.5 grams | — |
| Cooling diff | Liquid | — |
| Run Time diff | — | About 5-7 sessions per charge |
| Session Length diff | — | 8-minute timer |
Neither is universally better. Hydrology9 fits some priorities, while PAX FLOW fits others. This side-by-side comparison highlights the tradeoffs so you can choose based on your own use-case.
Hydrology9 is listed lower ($199) compared with PAX FLOW ($350), but live retailer pricing can change.
PAX FLOW has the faster listed heat-up time (30-45 seconds) versus Hydrology9 (~1 minute).
Jump into the full comparison hub to pick any two devices and open a canonical side-by-side page.