Price (USD)
G Pen Pro edgeG Pen Pro
$90
Vapvana Screwball
$299
G Pen Pro is typically around $209 lower.
Vaporizer Comparison
G Pen Pro vs Vapvana Screwball
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
Vapvana Screwball
Vapvana from $329
Editorial Summary
G Pen Pro and Vapvana Screwball are both convection / electronic vaporizers, but they target different priorities. G Pen Pro is usually the lower-cost pick at $90, around $209 below Vapvana Screwball. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
21
Different Specs
21
Shared Specs
0
Overall Overlap
0%
Shared Traits
Convection Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callG Pen Pro
Convection
Vapvana Screwball
Hybrid
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
Vapvana Screwball
$299
Heating Type
G Pen Pro
Convection
Vapvana Screwball
Hybrid
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
Vapvana Screwball
450F-525F (Recommended Range)
Chamber Capacity
G Pen Pro
~0.25 grams
Vapvana Screwball
0.1 - 0.4g
Battery Type
G Pen Pro
Internal
Vapvana Screwball
N/A
Charging
G Pen Pro
Micro-USB
Vapvana Screwball
N/A
Power Adjustment
G Pen Pro
Modular - 3 Stages
Vapvana Screwball
Digital (precise)
Chamber Material
G Pen Pro
Ceramic
Vapvana Screwball
Titanium
Brand
G Pen Pro
Grenco Science
Vapvana Screwball
Vapvana
Warranty
G Pen Pro
1 year
Vapvana Screwball
Lifetime
Choose G Pen Pro if...
- You want the lower listed entry price ($90 vs $299).
- You prefer a convection heating profile.
- Your usage leans toward portable and budget sessions.
Choose Vapvana Screwball if...
- You prefer a hybrid heating profile.
- Your usage leans toward premium and desktop sessions.
- You prefer Vapvana Screwball's overall feature mix and form factor.
Current price
$329
at Vapvana
Prices are read automatically from retailer pages and were last checked Sep 3, 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.
21 differ 0 shared
| Specification | G Pen Pro | Vapvana Screwball |
|---|---|---|
| Price (USD) | $90 | $299 |
| Device Type | Portable | — |
| Heating Type | Convection | Hybrid |
| Heat Up Time | ~30 seconds | — |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 450F-525F (Recommended Range) |
| Chamber Capacity | ~0.25 grams | 0.1 - 0.4g |
| Battery Type | Internal | N/A |
| Battery Capacity | 2200mAh | — |
| Charging | Micro-USB | N/A |
| Charge Time | <3 hours | — |
| Power Adjustment | Modular - 3 Stages | Digital (precise) |
| Chamber Material | Ceramic | Titanium |
| Brand | Grenco Science | Vapvana |
| Ball Type | — | ~750 2.5mm Gem Cut Rubies |
| Body Material | — | Titanium |
| Coil Size | — | 25mm |
| Joint Size | — | 18mm and 14mm |
| Release Date | 2017 | — |
| Screen Size | — | 20mm and 15mm |
| Session Style | Session | — |
| Warranty | 1 year | Lifetime |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the Vapvana Screwball?
The biggest practical difference is price tier: the G Pen Pro sits at $90 while the Vapvana Screwball is $299, a gap of about $209 that puts them in different buying brackets.
Which is cheaper, the G Pen Pro or the Vapvana Screwball?
G Pen Pro is the cheaper option at $90 compared with $299 for the Vapvana Screwball, about $209 less. Live retailer pricing can shift, so confirm before buying.
What's the difference in heating between the G Pen Pro and the Vapvana Screwball?
G Pen Pro uses convection heating, while the Vapvana Screwball uses hybrid. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Can I set custom temperatures on the G Pen Pro or the Vapvana Screwball?
G Pen Pro controls heat with modular - 3 stages, while the Vapvana Screwball uses digital (precise). Vapvana Screwball gives you finer per-degree control.
How much flower do the G Pen Pro and Vapvana Screwball hold?
G Pen Pro lists a chamber capacity of ~0.25 grams; the Vapvana Screwball lists 0.1 - 0.4g.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.