Price (USD)
G Pen Pro edgeG Pen Pro
$90
Tempest
$247
G Pen Pro is typically around $157 lower.
Vaporizer Comparison
G Pen Pro vs Tempest
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
Tempest
Mad Heaters $247
Editorial Summary
G Pen Pro and Tempest are both portable / convection vaporizers, but they target different priorities. G Pen Pro is usually the lower-cost pick at $90, around $157 below Tempest. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
20
Different Specs
19
Shared Specs
1
Overall Overlap
5%
Shared Traits
Portable Convection
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callG Pen Pro
Convection
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)
G Pen Pro
$90
Tempest
$247
Heating Type
G Pen Pro
Convection
Tempest
Convection-heavy with some conduction
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
Tempest
N/A
Chamber Capacity
G Pen Pro
~0.25 grams
Tempest
0.075g - 0.15g
Battery Type
G Pen Pro
Internal
Tempest
None
Battery Capacity
G Pen Pro
2200mAh
Tempest
N/A
Charging
G Pen Pro
Micro-USB
Tempest
N/A
Charge Time
G Pen Pro
<3 hours
Tempest
N/A
Power Adjustment
G Pen Pro
Modular - 3 Stages
Tempest
Manual
Chamber Material
G Pen Pro
Ceramic
Tempest
Titanium
Choose G Pen Pro if...
- You want the lower listed entry price ($90 vs $247).
- You prefer a convection heating profile.
- Your usage leans toward budget and electronic sessions.
Choose Tempest if...
- You prefer a convection-heavy with some conduction heating profile.
- Your usage leans toward analog and premium sessions.
- You prefer Tempest's overall feature mix and form factor.
Spec Comparison Table
Direct comparison of every spec from each device profile.
19 differ 1 shared
| Specification | G Pen Pro | Tempest |
|---|---|---|
| Price (USD) | $90 | $247 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Convection-heavy with some conduction |
| Heat Up Time | ~30 seconds | — |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | N/A |
| Chamber Capacity | ~0.25 grams | 0.075g - 0.15g |
| Battery Type | Internal | None |
| Battery Capacity | 2200mAh | N/A |
| Battery Life | — | N/A |
| Charging | Micro-USB | N/A |
| Charge Time | <3 hours | N/A |
| Power Adjustment | Modular - 3 Stages | Manual |
| Chamber Material | Ceramic | Titanium |
| Brand | Grenco Science | 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 | 1 year | — |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the Tempest?
The biggest practical difference is price tier: the G Pen Pro sits at $90 while the Tempest is $247, a gap of about $157 that puts them in different buying brackets.
Which is cheaper, the G Pen Pro or the Tempest?
G Pen Pro is the cheaper option at $90 compared with $247 for the Tempest, about $157 less. Live retailer pricing can shift, so confirm before buying.
What's the difference in heating between the G Pen Pro and the Tempest?
G Pen Pro uses convection 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 G Pen Pro or the Tempest hold more flower?
G Pen Pro has the larger chamber at ~0.25 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 G Pen Pro or the Tempest?
G Pen Pro controls heat with modular - 3 stages, 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.