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Vaporizer Comparison

Furna vs G Pen Roam

Side-by-side specs, pricing context, and clear decision guidance.

Furna

Furna

Furna $175

VS
G Pen Roam

G Pen Roam

Grenco Science $200

Editorial Summary

Furna and G Pen Roam are both portable / electronic vaporizers, but they target different priorities. Furna is usually the lower-cost pick at $175, around $25 below G Pen Roam. G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.

Specs Compared

22

Different Specs

15

Shared Specs

7

Overall Overlap

32%

Shared Traits

Portable Electronic Concentrates

Head-to-Head Highlights

A quick snapshot of the specs people usually care about first.

Price (USD)

Furna edge

Furna

$175

G Pen Roam

$200

Furna is typically around $25 lower.

Heat-Up Time

G Pen Roam edge

Furna

20-30 Seconds

G Pen Roam

~5 seconds

G Pen Roam has the quicker listed heat-up profile.

Heating Style

Close call

Furna

Conduction

G Pen Roam

Conduction

Both devices use a similar heating approach.

Key Differences at a Glance

Top specs where these two devices diverge.

10 differences

Price (USD)

Furna

$175

G Pen Roam

$200

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...

  • You want the lower listed entry price ($175 vs $200).
  • Your usage leans toward conduction sessions.
  • You prefer Furna's overall feature mix and form factor.
View Furna Profile

Choose G Pen Roam if...

  • You care about faster heat-up time for quicker sessions.
  • You prefer G Pen Roam's overall feature mix and form factor.
  • You value how the G Pen Roam balances size, controls, and everyday practicality.
View G Pen Roam Profile

Spec Comparison Table

Direct comparison of every spec from each device profile.

15 differ 7 shared
SpecificationFurnaG Pen Roam
Price (USD) $175$200
Device Type PortablePortable
Heating Type ConductionConduction
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 18650Internal
Battery Capacity 3500mAh1300mAh
Battery Life 15-20 sessions15-20 sessions
Charging Micro-USBMicro-USB
Charge Time <2.5 hours~2 hours
Dimensions 178x127x102mm
Weight ~317g
Power Adjustment DigitalDigital Control
Chamber Material Stainless SteelQuartz
Concentrate Support YesYes
Brand FurnaGrenco Science
Adjustable Airflow NoNo
Display Type LED
Haptic Feedback Yes
Release Date 20202020
Warranty 2 years1 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?

Furna is the cheaper option at $175 compared with $200 for the G Pen Roam, about $25 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 22 specs we line up, they share 7 and differ on 15, an overlap of about 32%. 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.