Price (USD)
G Pen Pro edgeG Pen Pro
$90
Hydrology9 NX
$250
G Pen Pro is typically around $160 lower.
Vaporizer Comparison
G Pen Pro vs Hydrology9 NX
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
Hydrology9 NX
Cloudious9 $250
Editorial Summary
G Pen Pro and Hydrology9 NX are both convection / electronic vaporizers, but they target different priorities. G Pen Pro is usually the lower-cost pick at $90, around $160 below Hydrology9 NX. Heat-up speed is broadly similar between the two.
Specs Compared
20
Different Specs
17
Shared Specs
3
Overall Overlap
15%
Shared Traits
Convection Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
Close callG Pen Pro
~30 seconds
Hydrology9 NX
~30 seconds
Both devices are in a similar heat-up range.
Heating Style
Close callG Pen Pro
Convection
Hydrology9 NX
Hybrid 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)
G Pen Pro
$90
Hydrology9 NX
$250
Device Type
G Pen Pro
Portable
Hydrology9 NX
Desktop
Heating Type
G Pen Pro
Convection
Hydrology9 NX
Hybrid Convection
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
Hydrology9 NX
324°F - 468°F
Chamber Capacity
G Pen Pro
~0.25 grams
Hydrology9 NX
~0.2g - 0.25g
Battery Type
G Pen Pro
Internal
Hydrology9 NX
Removable
Battery Capacity
G Pen Pro
2200mAh
Hydrology9 NX
1900mAh
Charging
G Pen Pro
Micro-USB
Hydrology9 NX
USB to Propietary Magnetic Connector
Charge Time
G Pen Pro
<3 hours
Hydrology9 NX
~60 minutes
Power Adjustment
G Pen Pro
Modular - 3 Stages
Hydrology9 NX
6 Presets (Dial)
Choose G Pen Pro if...
- You want the lower listed entry price ($90 vs $250).
- You prefer a convection heating profile.
- Your usage leans toward portable and budget sessions.
Choose Hydrology9 NX if...
- You prefer a hybrid convection heating profile.
- Your usage leans toward hybrid and desktop sessions.
- You prefer Hydrology9 NX's overall feature mix and form factor.
Spec Comparison Table
Direct comparison of every spec from each device profile.
17 differ 3 shared
| Specification | G Pen Pro | Hydrology9 NX |
|---|---|---|
| Price (USD) | $90 | $250 |
| Device Type | Portable | Desktop |
| Heating Type | Convection | Hybrid Convection |
| Heat Up Time | ~30 seconds | ~30 seconds |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 324°F - 468°F |
| Chamber Capacity | ~0.25 grams | ~0.2g - 0.25g |
| Battery Type | Internal | Removable |
| Battery Capacity | 2200mAh | 1900mAh |
| Battery Life | — | 60-120 sessions |
| Charging | Micro-USB | USB to Propietary Magnetic Connector |
| Charge Time | <3 hours | ~60 minutes |
| Dimensions | — | 4.5cm x 4.5cm x 17.5cm |
| Weight | — | 413 grams |
| Power Adjustment | Modular - 3 Stages | 6 Presets (Dial) |
| Chamber Material | Ceramic | Ceramic |
| Concentrate Support | — | Yes |
| Brand | Grenco Science | Cloudious9 |
| Release Date | 2017 | 2021 |
| Session Style | Session | Session |
| Warranty | 1 year | 2 years |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the Hydrology9 NX?
The biggest practical difference is price tier: the G Pen Pro sits at $90 while the Hydrology9 NX is $250, a gap of about $160 that puts them in different buying brackets.
Which is cheaper, the G Pen Pro or the Hydrology9 NX?
G Pen Pro is the cheaper option at $90 compared with $250 for the Hydrology9 NX, about $160 less. Live retailer pricing can shift, so confirm before buying.
What's the difference in heating between the G Pen Pro and the Hydrology9 NX?
G Pen Pro uses convection heating, while the Hydrology9 NX uses hybrid convection. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Is the G Pen Pro or the Hydrology9 NX better for home versus on-the-go use?
G Pen Pro is the take-anywhere choice. It's a portable, battery-powered unit, while the Hydrology9 NX is built for home use, where bigger heaters, AC power, and larger chambers make sense.
Can I swap the batteries on the G Pen Pro or the Hydrology9 NX?
Hydrology9 NX uses removable, so you can carry spares for back-to-back days. The G Pen Pro has a built-in battery you can't swap on the go.
Which heats up faster, the G Pen Pro or the Hydrology9 NX?
Heat-up times are very close: ~30 seconds on the G Pen Pro and ~30 seconds on the Hydrology9 NX. The real-world difference will be hard to notice mid-session.
How much flower do the G Pen Pro and Hydrology9 NX hold?
G Pen Pro lists a chamber capacity of ~0.25 grams; the Hydrology9 NX lists ~0.2g - 0.25g.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.