Price (USD)
G Pen Roam edgeFurna
$175
G Pen Roam
$100
G Pen Roam is typically around $75 lower.
Vaporizer Comparison
Furna vs G Pen Roam
Side-by-side specs, pricing context, and clear decision guidance.
Furna
Furna $175
VS
G Pen Roam
Grenco Science from $49.95
Editorial Summary
Furna and G Pen Roam are both portable / electronic vaporizers, but they target different priorities. G Pen Roam is usually the lower-cost pick at $100, around $75 below Furna. G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
21
Different Specs
14
Shared Specs
7
Overall Overlap
33%
Shared Traits
Portable Electronic Concentrates
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
G Pen Roam edgeFurna
20-30 Seconds
G Pen Roam
~5 seconds
G Pen Roam has the quicker listed heat-up profile.
Heating Style
Close callFurna
Conduction
G Pen Roam
Conduction
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Furna
$175
G Pen Roam
$100
Heat Up Time
Furna
20-30 Seconds
G Pen Roam
~5 seconds
Temperature Range
Furna
160°C - 215°C (320°F - 420°F)
G Pen Roam
204°C - 427°C (400°F - 800°F)
Battery Type
Furna
Internal 18650
G Pen Roam
Internal
Battery Capacity
Furna
3500mAh
G Pen Roam
1300mAh
Charge Time
Furna
<2.5 hours
G Pen Roam
~2 hours
Power Adjustment
Furna
Digital
G Pen Roam
Digital Control
Chamber Material
Furna
Stainless Steel
G Pen Roam
Quartz
Brand
Furna
Furna
G Pen Roam
Grenco Science
Warranty
Furna
2 years
G Pen Roam
1 year
Choose Furna if...
- Your usage leans toward conduction sessions.
- You prefer Furna's overall feature mix and form factor.
- You value how the Furna balances size, controls, and everyday practicality.
Choose G Pen Roam if...
- You want the lower listed entry price ($100 vs $175).
- You care about faster heat-up time for quicker sessions.
- You prefer G Pen Roam's overall feature mix and form factor.
Lowest price
$49.95
at G Pen
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.
14 differ 7 shared
| Specification | Furna | G Pen Roam |
|---|---|---|
| Price (USD) | $175 | $100 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Conduction |
| Heat Up Time | 20-30 Seconds | ~5 seconds |
| Temperature Range | 160°C - 215°C (320°F - 420°F) | 204°C - 427°C (400°F - 800°F) |
| Chamber Capacity | ~0.23g | — |
| Battery Type | Internal 18650 | Internal |
| Battery Capacity | 3500mAh | 1300mAh |
| Battery Life | 15-20 sessions | 15-20 sessions |
| Charging | Micro-USB | Micro-USB |
| Charge Time | <2.5 hours | ~2 hours |
| Weight | — | ~317g |
| Power Adjustment | Digital | Digital Control |
| Chamber Material | Stainless Steel | Quartz |
| Concentrate Support | Yes | Yes |
| Brand | Furna | Grenco Science |
| Adjustable Airflow | No | No |
| Display Type | — | LED |
| Haptic Feedback | — | Yes |
| Release Date | 2020 | 2020 |
| Warranty | 2 years | 1 year |
Comparison FAQs
What is the biggest difference between the Furna and the G Pen Roam?
The biggest practical difference is heat-up speed: the G Pen Roam is ready in ~5 seconds versus 20-30 Seconds on the Furna, which changes whether it feels on-demand or scheduled.
Which is cheaper, the Furna or the G Pen Roam?
G Pen Roam is the cheaper option at $100 compared with $175 for the Furna, about $75 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the Furna or the G Pen Roam?
G Pen Roam reaches session-ready temperature in ~5 seconds, while the Furna takes 20-30 Seconds. That's roughly 20 seconds quicker on the G Pen Roam, which is useful if you want shorter, on-demand sessions.
Which charges faster, the Furna or the G Pen Roam?
G Pen Roam fully charges in ~2 hours, ahead of <2.5 hours on the Furna.
Which has a wider temperature range, the Furna or the G Pen Roam?
G Pen Roam covers 204°C - 427°C (400°F - 800°F), a wider band than the Furna at 160°C - 215°C (320°F - 420°F). A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
Can I use concentrates with the Furna or the G Pen Roam?
Both devices support concentrate use, typically via an included or aftermarket pad or insert. Check the manual for the recommended approach for each.
How similar are the Furna and the G Pen Roam?
Across the 21 specs we line up, they share 7 and differ on 14, an overlap of about 33%. 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.