Price (USD)
G Pen Roam edgeG Pen Roam
$100
Vaporbrothers VB1
$300
G Pen Roam is typically around $200 lower.
Vaporizer Comparison
G Pen Roam vs Vaporbrothers VB1
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science from $49.95
VS
Vaporbrothers VB1
Vaporbrothers $300
Editorial Summary
G Pen Roam and Vaporbrothers VB1 are both electronic vaporizers, but they target different priorities. G Pen Roam is usually the lower-cost pick at $100, around $200 below Vaporbrothers VB1. 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
Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callG Pen Roam
Conduction
Vaporbrothers VB1
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 Roam
$100
Vaporbrothers VB1
$300
Device Type
G Pen Roam
Portable
Vaporbrothers VB1
Desktop
Heating Type
G Pen Roam
Conduction
Vaporbrothers VB1
Convection
Battery Type
G Pen Roam
Internal
Vaporbrothers VB1
N/A
Charging
G Pen Roam
Micro-USB
Vaporbrothers VB1
N/A
Power Adjustment
G Pen Roam
Digital Control
Vaporbrothers VB1
Single Dial
Chamber Material
G Pen Roam
Quartz
Vaporbrothers VB1
Glass
Brand
G Pen Roam
Grenco Science
Vaporbrothers VB1
Vaporbrothers
Release Date
G Pen Roam
2020
Vaporbrothers VB1
1999
Warranty
G Pen Roam
1 year
Vaporbrothers VB1
Lifetime
Choose G Pen Roam if...
- You want the lower listed entry price ($100 vs $300).
- You prefer a conduction heating profile.
- Your usage leans toward portable and concentrates sessions.
Lowest price
$49.95
at G Pen
Choose Vaporbrothers VB1 if...
- You prefer a convection heating profile.
- Your usage leans toward desktop and convection sessions.
- You prefer Vaporbrothers VB1's overall feature mix and form factor.
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.
21 differ 0 shared
| Specification | G Pen Roam | Vaporbrothers VB1 |
|---|---|---|
| Price (USD) | $100 | $300 |
| Device Type | Portable | Desktop |
| Heating Type | Conduction | Convection |
| Heat Up Time | ~5 seconds | — |
| Temperature Range | 204°C - 427°C (400°F - 800°F) | — |
| Chamber Capacity | — | 0.5g |
| Battery Type | Internal | N/A |
| Battery Capacity | 1300mAh | — |
| Battery Life | 15-20 sessions | — |
| Charging | Micro-USB | N/A |
| Charge Time | ~2 hours | — |
| Weight | ~317g | — |
| Power Adjustment | Digital Control | Single Dial |
| Chamber Material | Quartz | Glass |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | Vaporbrothers |
| Adjustable Airflow | No | — |
| Display Type | LED | — |
| Haptic Feedback | Yes | — |
| Release Date | 2020 | 1999 |
| Warranty | 1 year | Lifetime |
Comparison FAQs
What is the biggest difference between the G Pen Roam and the Vaporbrothers VB1?
The biggest practical difference is price tier: the G Pen Roam sits at $100 while the Vaporbrothers VB1 is $300, a gap of about $200 that puts them in different buying brackets.
Which is cheaper, the G Pen Roam or the Vaporbrothers VB1?
G Pen Roam is the cheaper option at $100 compared with $300 for the Vaporbrothers VB1, about $200 less. Live retailer pricing can shift, so confirm before buying.
What's the difference in heating between the G Pen Roam and the Vaporbrothers VB1?
G Pen Roam uses conduction heating, while the Vaporbrothers VB1 uses convection. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Is the G Pen Roam or the Vaporbrothers VB1 better for home versus on-the-go use?
G Pen Roam is the take-anywhere choice. It's a portable, battery-powered unit, while the Vaporbrothers VB1 is built for home use, where bigger heaters, AC power, and larger chambers make sense.
Can I set custom temperatures on the G Pen Roam or the Vaporbrothers VB1?
G Pen Roam controls heat with digital control, while the Vaporbrothers VB1 uses single dial. G Pen Roam gives you finer per-degree control.
Is the G Pen Roam or the Vaporbrothers VB1 better for microdosing?
Vaporbrothers VB1 is the better fit for microdosing in our database, typically thanks to a smaller chamber, finer temperature control, or both.
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