Price (USD)
Hydrology9 edgeHydrology9
$199
Tempest
$247
Hydrology9 is typically around $48 lower.
Vaporizer Comparison
Hydrology9 vs Tempest
Side-by-side specs, pricing context, and clear decision guidance.
Hydrology9
Cloudious9 $199
VS
Tempest
Mad Heaters $247
Editorial Summary
Hydrology9 and Tempest solve similar use-cases with different tradeoffs. Hydrology9 is usually the lower-cost pick at $199, around $48 below Tempest. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
22
Different Specs
21
Shared Specs
1
Overall Overlap
5%
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callHydrology9
Conduction
Tempest
Convection-heavy with some conduction
Heating style differs, which can impact flavor and extraction behavior.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Hydrology9
$199
Tempest
$247
Heating Type
Hydrology9
Conduction
Tempest
Convection-heavy with some conduction
Temperature Range
Hydrology9
250°F-430°F
Tempest
N/A
Chamber Capacity
Hydrology9
~0.5 grams
Tempest
0.075g - 0.15g
Battery Type
Hydrology9
Internal
Tempest
None
Battery Capacity
Hydrology9
2000mAh
Tempest
N/A
Charging
Hydrology9
Micro USB
Tempest
N/A
Charge Time
Hydrology9
~2 hours
Tempest
N/A
Power Adjustment
Hydrology9
Modular - 5 stage
Tempest
Manual
Chamber Material
Hydrology9
Ceramic
Tempest
Titanium
Choose Hydrology9 if...
- You want the lower listed entry price ($199 vs $247).
- You prefer a conduction heating profile.
- Your usage leans toward desktop and conduction sessions.
Choose Tempest if...
- You prefer a convection-heavy with some conduction heating profile.
- Your usage leans toward portable and analog sessions.
- You prefer Tempest's overall feature mix and form factor.
Spec Comparison Table
Direct comparison of every spec from each device profile.
21 differ 1 shared
| Specification | Hydrology9 | Tempest |
|---|---|---|
| Price (USD) | $199 | $247 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Convection-heavy with some conduction |
| Heat Up Time | ~1 minute | — |
| Temperature Range | 250°F-430°F | N/A |
| Chamber Capacity | ~0.5 grams | 0.075g - 0.15g |
| Battery Type | Internal | None |
| Battery Capacity | 2000mAh | N/A |
| Battery Life | — | N/A |
| Charging | Micro USB | N/A |
| Charge Time | ~2 hours | N/A |
| Dimensions | ~4.5 x ~17.5cm | — |
| Power Adjustment | Modular - 5 stage | Manual |
| Chamber Material | Ceramic | Titanium |
| Brand | Cloudious9 | Mad Heaters |
| Adjustable Airflow | — | Yes |
| Ball Size | — | 2.5mm Zirconia |
| Country of Manufacture | — | Made in China, Assembled in the UK |
| Release Date | 2017 | — |
| Session Style | Session | — |
| Warranty | 2 years | — |
| Water Filtration | Yes | — |
Comparison FAQs
What is the biggest difference between the Hydrology9 and the Tempest?
The biggest practical difference is heating approach: Hydrology9 runs conduction while Tempest runs convection-heavy with some conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Which is cheaper, the Hydrology9 or the Tempest?
Hydrology9 is the cheaper option at $199 compared with $247 for the Tempest, about $48 less. Live retailer pricing can shift, so confirm before buying.
What's the difference in heating between the Hydrology9 and the Tempest?
Hydrology9 uses conduction heating, while the Tempest uses convection-heavy with some conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Does the Hydrology9 or the Tempest hold more flower?
Hydrology9 has the larger chamber at ~0.5 grams, versus 0.075g - 0.15g on the Tempest. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Can I set custom temperatures on the Hydrology9 or the Tempest?
Hydrology9 controls heat with modular - 5 stage, while the Tempest uses manual. Both let you change temperature, just with different levels of precision.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.