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
18
Shared Specs
2
Overall Overlap
10%
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
356°F - 455°F (herb), 554°F - 770°F (extract)
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.
Typical price
$250
Sold by To the Cloud Vapor Store
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.
18 differ 2 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) | 356°F - 455°F (herb), 554°F - 770°F (extract) |
| 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 (herb) / Quartz & Ceramic (extract) |
| 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.