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Vaporizer Comparison

G Pen Roam vs ViVANT Ambit

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

G Pen Roam

G Pen Roam

Grenco Science $200

VS
ViVANT Ambit

ViVANT Ambit

ViVANT $75

Editorial Summary

G Pen Roam and ViVANT Ambit are both portable / electronic vaporizers, but they target different priorities. ViVANT Ambit is usually the lower-cost pick at $75, around $125 below G Pen Roam. G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.

Specs Compared

23

Different Specs

20

Shared Specs

3

Overall Overlap

13%

Shared Traits

Portable Electronic

Head-to-Head Highlights

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

Price (USD)

ViVANT Ambit edge

G Pen Roam

$200

ViVANT Ambit

$75

ViVANT Ambit is typically around $125 lower.

Heat-Up Time

G Pen Roam edge

G Pen Roam

~5 seconds

ViVANT Ambit

~40 seconds

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

Weight

ViVANT Ambit edge

G Pen Roam

~317g

ViVANT Ambit

93g

ViVANT Ambit is the lighter listed unit.

Heating Style

Close call

G Pen Roam

Conduction

ViVANT Ambit

Convection

Heating style differs, which can impact flavor and extraction behavior.

Key Differences at a Glance

Top specs where these two devices diverge.

10 differences

Price (USD)

G Pen Roam

$200

ViVANT Ambit

$75

Heating Type

G Pen Roam

Conduction

ViVANT Ambit

Convection

Heat Up Time

G Pen Roam

~5 seconds

ViVANT Ambit

~40 seconds

Temperature Range

G Pen Roam

204°C - 427°C (400°F - 800°F)

ViVANT Ambit

212-464°F

Battery Capacity

G Pen Roam

1300mAh

ViVANT Ambit

1500mAh

Battery Life

G Pen Roam

15-20 sessions

ViVANT Ambit

<10 uses

Charge Time

G Pen Roam

~2 hours

ViVANT Ambit

1-2 hours

Dimensions

G Pen Roam

178x127x102mm

ViVANT Ambit

68.3x27.9x54.8mm

Weight

G Pen Roam

~317g

ViVANT Ambit

93g

Chamber Material

G Pen Roam

Quartz

ViVANT Ambit

Stainless Steel

Choose G Pen Roam if...

  • You care about faster heat-up time for quicker sessions.
  • You prefer a conduction heating profile.
  • Your usage leans toward concentrates sessions.
View G Pen Roam Profile

Choose ViVANT Ambit if...

  • You want the lower listed entry price ($75 vs $200).
  • You want the lighter unit for carrying and travel.
  • You prefer a convection heating profile.
  • Your usage leans toward convection and discrete sessions.
View ViVANT Ambit Profile

Spec Comparison Table

Direct comparison of every spec from each device profile.

20 differ 3 shared
SpecificationG Pen RoamViVANT Ambit
Price (USD) $200$75
Device Type PortablePortable
Heating Type ConductionConvection
Heat Up Time ~5 seconds~40 seconds
Temperature Range 204°C - 427°C (400°F - 800°F)212-464°F
Chamber Capacity ~0.25 grams
Battery Type InternalInternal
Battery Capacity 1300mAh1500mAh
Battery Life 15-20 sessions<10 uses
Charging Micro-USBMicro USB
Charge Time ~2 hours1-2 hours
Dimensions 178x127x102mm68.3x27.9x54.8mm
Weight ~317g93g
Power Adjustment Digital Control
Chamber Material QuartzStainless Steel
Concentrate Support Yes
Brand Grenco ScienceViVANT
Adjustable Airflow No
Display Type LEDLCD
Haptic Feedback Yes
Release Date 20202019
Session Style Session
Warranty 1 year

Comparison FAQs

What is the biggest difference between the G Pen Roam and the ViVANT Ambit?

The biggest practical difference is price tier: the ViVANT Ambit sits at $75 while the G Pen Roam is $200, a gap of about $125 that puts them in different buying brackets.

Which is cheaper, the G Pen Roam or the ViVANT Ambit?

ViVANT Ambit is the cheaper option at $75 compared with $200 for the G Pen Roam, about $125 less. Live retailer pricing can shift, so confirm before buying.

Which heats up faster, the G Pen Roam or the ViVANT Ambit?

G Pen Roam reaches session-ready temperature in ~5 seconds, while the ViVANT Ambit takes ~40 seconds. That's roughly 35 seconds quicker on the G Pen Roam, which is useful if you want shorter, on-demand sessions.

What's the difference in heating between the G Pen Roam and the ViVANT Ambit?

G Pen Roam uses conduction heating, while the ViVANT Ambit uses convection. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.

Which is lighter, the G Pen Roam or the ViVANT Ambit?

ViVANT Ambit is the lighter unit at 93g, around 224g less than the G Pen Roam at ~317g. The lighter device is easier to carry and pocket day-to-day.

Which charges faster, the G Pen Roam or the ViVANT Ambit?

ViVANT Ambit fully charges in 1-2 hours, ahead of ~2 hours on the G Pen Roam.

Which is more discreet, the G Pen Roam or the ViVANT Ambit?

ViVANT Ambit is the better pick if low-profile use matters. It's tagged as stealth or pocket-friendly in our database, while the G Pen Roam is more conspicuous in hand and harder to keep out of sight.

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