Price (USD)
XMAX V4 Pro edgeHydrology9
$199
XMAX V4 Pro
$120
XMAX V4 Pro is typically around $79 lower.
Vaporizer Comparison
Hydrology9 vs XMAX V4 Pro
Side-by-side specs, pricing context, and clear decision guidance.
Hydrology9
Cloudious9 $199
VS
XMAX V4 Pro
XMAX $120
Editorial Summary
Hydrology9 and XMAX V4 Pro are both portable / electronic vaporizers, but they target different priorities. XMAX V4 Pro is usually the lower-cost pick at $120, around $79 below Hydrology9. XMAX V4 Pro has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
26
Different Specs
25
Shared Specs
1
Overall Overlap
4%
Shared Traits
Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
XMAX V4 Pro edgeHydrology9
~1 minute
XMAX V4 Pro
10-20 seconds
XMAX V4 Pro has the quicker listed heat-up profile.
Heating Style
Close callHydrology9
Conduction
XMAX V4 Pro
Convection
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
XMAX V4 Pro
$120
Heating Type
Hydrology9
Conduction
XMAX V4 Pro
Convection
Heat Up Time
Hydrology9
~1 minute
XMAX V4 Pro
10-20 seconds
Temperature Range
Hydrology9
250°F-430°F
XMAX V4 Pro
100 - 220C (212 - 428F)
Chamber Capacity
Hydrology9
~0.5 grams
XMAX V4 Pro
0.1g - 0.15g
Battery Type
Hydrology9
Internal
XMAX V4 Pro
18650 (user replaceable)
Battery Capacity
Hydrology9
2000mAh
XMAX V4 Pro
2550mAh
Charging
Hydrology9
Micro USB
XMAX V4 Pro
USB-C (side mounted)
Charge Time
Hydrology9
~2 hours
XMAX V4 Pro
~3 hours at 5V/1A
Dimensions
Hydrology9
~4.5 x ~17.5cm
XMAX V4 Pro
158 x 27 x 24mm
Choose Hydrology9 if...
- You prefer a conduction heating profile.
- Your usage leans toward conduction sessions.
- You prefer Hydrology9's overall feature mix and form factor.
Typical price
$199
Sold by To the Cloud Vapor Store
Choose XMAX V4 Pro if...
- You want the lower listed entry price ($120 vs $199).
- You care about faster heat-up time for quicker sessions.
- You prefer a convection heating profile.
- Your usage leans toward convection and budget sessions.
Typical price
$120
Sold by VPM
Prices are read automatically from retailer pages; confirm the price at checkout. Some links are affiliate links, which support Thermal Extractions at no extra cost to you.
Spec Comparison Table
Direct comparison of every spec from each device profile.
25 differ 1 shared
| Specification | Hydrology9 | XMAX V4 Pro |
|---|---|---|
| Price (USD) | $199 | $120 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Convection |
| Heat Up Time | ~1 minute | 10-20 seconds |
| Temperature Range | 250°F-430°F | 100 - 220C (212 - 428F) |
| Chamber Capacity | ~0.5 grams | 0.1g - 0.15g |
| Battery Type | Internal | 18650 (user replaceable) |
| Battery Capacity | 2000mAh | 2550mAh |
| Battery Life | — | 6-8 sessions (XMAX claims up to 12) |
| Charging | Micro USB | USB-C (side mounted) |
| Charge Time | ~2 hours | ~3 hours at 5V/1A |
| Dimensions | ~4.5 x ~17.5cm | 158 x 27 x 24mm |
| Weight | — | ~105 grams |
| Power Adjustment | Modular - 5 stage | Digital (precise, 1 degree steps) |
| Chamber Material | Ceramic | Stainless steel |
| Brand | Cloudious9 | XMAX |
| Adjustable Airflow | — | Yes (3 positions) |
| Country of Manufacture | — | China |
| Display Type | — | Colour OLED (flippable) |
| Haptic Feedback | — | Yes |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2017 | 2026 |
| Session Style | Session | Both |
| Warranty | 2 years | 1 year |
| Water Filtration | Yes | — |
| Water Pipe Adapter | — | Built into glass mouthpiece (14mm / 18mm) |
Comparison FAQs
What is the biggest difference between the Hydrology9 and the XMAX V4 Pro?
The biggest practical difference is heating approach: Hydrology9 runs conduction while XMAX V4 Pro runs convection. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Which is cheaper, the Hydrology9 or the XMAX V4 Pro?
XMAX V4 Pro is the cheaper option at $120 compared with $199 for the Hydrology9, about $79 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the Hydrology9 or the XMAX V4 Pro?
XMAX V4 Pro reaches session-ready temperature in 10-20 seconds, while the Hydrology9 takes ~1 minute. That's roughly 45 seconds quicker on the XMAX V4 Pro, which is useful if you want shorter, on-demand sessions.
What's the difference in heating between the Hydrology9 and the XMAX V4 Pro?
Hydrology9 uses conduction heating, while the XMAX V4 Pro uses convection. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Does the Hydrology9 or the XMAX V4 Pro hold more flower?
Hydrology9 has the larger chamber at ~0.5 grams, versus 0.1g - 0.15g on the XMAX V4 Pro. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Can I swap the batteries on the Hydrology9 or the XMAX V4 Pro?
XMAX V4 Pro uses 18650 (user replaceable), so you can carry spares for back-to-back days. The Hydrology9 has a built-in battery you can't swap on the go.
Can I set custom temperatures on the Hydrology9 or the XMAX V4 Pro?
Hydrology9 controls heat with modular - 5 stage, while the XMAX V4 Pro uses digital (precise, 1 degree steps). XMAX V4 Pro gives you finer per-degree control.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.