Price (USD)
G Pen Pro edgeG Pen Pro
$90
Volcano Classic
$450
G Pen Pro is typically around $360 lower.
Vaporizer Comparison
G Pen Pro vs Volcano Classic
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
Volcano Classic
Storz & Bickel from $199.20
Editorial Summary
G Pen Pro and Volcano Classic are both convection / electronic vaporizers, but they target different priorities. G Pen Pro is usually the lower-cost pick at $90, around $360 below Volcano Classic. G Pen Pro has the quicker listed heat-up profile, which can matter for shorter sessions.
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
G Pen Pro edgeG Pen Pro
~30 seconds
Volcano Classic
3.5 - 6 minutes
G Pen Pro has the quicker listed heat-up profile.
Heating Style
Close callG Pen Pro
Convection
Volcano Classic
Convection
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
G Pen Pro
$90
Volcano Classic
$450
Device Type
G Pen Pro
Portable
Volcano Classic
Desktop
Heat Up Time
G Pen Pro
~30 seconds
Volcano Classic
3.5 - 6 minutes
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
Volcano Classic
266°F - 446°F
Chamber Capacity
G Pen Pro
~0.25 grams
Volcano Classic
~0.6g
Battery Type
G Pen Pro
Internal
Volcano Classic
N/A
Charging
G Pen Pro
Micro-USB
Volcano Classic
N/A
Power Adjustment
G Pen Pro
Modular - 3 Stages
Volcano Classic
Modular - 9 stages
Chamber Material
G Pen Pro
Ceramic
Volcano Classic
Ceramic-Coated
Brand
G Pen Pro
Grenco Science
Volcano Classic
Storz & Bickel
Choose G Pen Pro if...
- You want the lower listed entry price ($90 vs $450).
- You care about faster heat-up time for quicker sessions.
- Your usage leans toward portable and budget sessions.
Choose Volcano Classic if...
- Your usage leans toward desktop sessions.
- You prefer Volcano Classic's overall feature mix and form factor.
- You value how the Volcano Classic balances size, controls, and everyday practicality.
Lowest price
$199.20
at Storz & Bickel
Prices are read automatically from retailer pages and were last checked Aug 27, 2026; 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 | Volcano Classic |
|---|---|---|
| Price (USD) | $90 | $450 |
| Device Type | Portable | Desktop |
| Heating Type | Convection | Convection |
| Heat Up Time | ~30 seconds | 3.5 - 6 minutes |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 266°F - 446°F |
| Chamber Capacity | ~0.25 grams | ~0.6g |
| Battery Type | Internal | N/A |
| Battery Capacity | 2200mAh | — |
| Charging | Micro-USB | N/A |
| Charge Time | <3 hours | — |
| Dimensions | — | 18cm x 20cm |
| Weight | — | ~1.6 kg |
| Power Adjustment | Modular - 3 Stages | Modular - 9 stages |
| Chamber Material | Ceramic | Ceramic-Coated |
| Brand | Grenco Science | Storz & Bickel |
| Country of Manufacture | — | Germany |
| Power | — | 110V/220V AC |
| Release Date | 2017 | 2000 |
| Session Style | Session | Session |
| Warranty | 1 year | 2 years |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the Volcano Classic?
The biggest practical difference is price tier: the G Pen Pro sits at $90 while the Volcano Classic is $450, a gap of about $360 that puts them in different buying brackets.
Which is cheaper, the G Pen Pro or the Volcano Classic?
G Pen Pro is the cheaper option at $90 compared with $450 for the Volcano Classic, about $360 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the G Pen Pro or the Volcano Classic?
G Pen Pro reaches session-ready temperature in ~30 seconds, while the Volcano Classic takes 3.5 - 6 minutes. That's roughly 255 seconds quicker on the G Pen Pro, which is useful if you want shorter, on-demand sessions.
Does the G Pen Pro or the Volcano Classic hold more flower?
Volcano Classic has the larger chamber at ~0.6g, versus ~0.25 grams on the G Pen Pro. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Is the G Pen Pro or the Volcano Classic 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 Volcano Classic is built for home use, where bigger heaters, AC power, and larger chambers make sense.
How similar are the G Pen Pro and the Volcano Classic?
Across the 20 specs we line up, they share 2 and differ on 18, an overlap of about 10%. The differences are concentrated in the areas the spec table highlights with a marker.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.