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Vaporizer Comparison

G Pen Roam vs XMAX V3 Pro

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

G Pen Roam

G Pen Roam

Grenco Science $200

VS
XMAX V3 Pro

XMAX V3 Pro

XMAX $110

Editorial Summary

G Pen Roam and XMAX V3 Pro are both portable / electronic vaporizers, but they target different priorities. XMAX V3 Pro is usually the lower-cost pick at $110, around $90 below G Pen Roam. G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.

Specs Compared

29

Different Specs

26

Shared Specs

3

Overall Overlap

10%

Shared Traits

Portable Electronic

Head-to-Head Highlights

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

Price (USD)

XMAX V3 Pro edge

G Pen Roam

$200

XMAX V3 Pro

$110

XMAX V3 Pro is typically around $90 lower.

Heat-Up Time

G Pen Roam edge

G Pen Roam

~5 seconds

XMAX V3 Pro

15-30 seconds

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

Weight

XMAX V3 Pro edge

G Pen Roam

~317g

XMAX V3 Pro

105 grams

XMAX V3 Pro is the lighter listed unit.

Heating Style

Close call

G Pen Roam

Conduction

XMAX V3 Pro

Hybrid (primarily 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

XMAX V3 Pro

$110

Heating Type

G Pen Roam

Conduction

XMAX V3 Pro

Hybrid (primarily convection)

Heat Up Time

G Pen Roam

~5 seconds

XMAX V3 Pro

15-30 seconds

Temperature Range

G Pen Roam

204°C - 427°C (400°F - 800°F)

XMAX V3 Pro

100 - 220C (212 - 428F)

Battery Type

G Pen Roam

Internal

XMAX V3 Pro

18650 (user replaceable)

Battery Life

G Pen Roam

15-20 sessions

XMAX V3 Pro

30-45 minutes or 5-6 sessions

Charging

G Pen Roam

Micro-USB

XMAX V3 Pro

USB-C

Weight

G Pen Roam

~317g

XMAX V3 Pro

105 grams

Power Adjustment

G Pen Roam

Digital Control

XMAX V3 Pro

Digital (precise)

Chamber Material

G Pen Roam

Quartz

XMAX V3 Pro

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 XMAX V3 Pro if...

  • You want the lower listed entry price ($110 vs $200).
  • You want the lighter unit for carrying and travel.
  • You prefer a hybrid (primarily convection) heating profile.
  • Your usage leans toward convection and budget sessions.
View XMAX V3 Pro Profile

Spec Comparison Table

Direct comparison of every spec from each device profile.

26 differ 3 shared
SpecificationG Pen RoamXMAX V3 Pro
Price (USD) $200$110
Device Type PortablePortable
Heating Type ConductionHybrid (primarily convection)
Heat Up Time ~5 seconds15-30 seconds
Temperature Range 204°C - 427°C (400°F - 800°F)100 - 220C (212 - 428F)
Chamber Capacity 0.1g - 0.15g
Battery Type Internal18650 (user replaceable)
Battery Capacity 1300mAh
Battery Life 15-20 sessions30-45 minutes or 5-6 sessions
Charging Micro-USBUSB-C
Charge Time ~2 hours
Dimensions 178x127x102mm
Width 2.5cm
Height 15cm
Weight ~317g105 grams
Power Adjustment Digital ControlDigital (precise)
Chamber Material QuartzStainless steel
Concentrate Support Yes
Brand Grenco ScienceXMAX
Adjustable Airflow NoNo
Country of Manufacture China
Display Type LED
Haptic Feedback Yes
Heating Element Ceramic
Manufacturer TopGreen Technology Co
Release Date 20202021
Session Style Both
Thickness 2.3cm
Warranty 1 year1 year

Comparison FAQs

What is the biggest difference between the G Pen Roam and the XMAX V3 Pro?

The biggest practical difference is heating approach: G Pen Roam runs conduction while XMAX V3 Pro runs hybrid (primarily convection). That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.

Which is cheaper, the G Pen Roam or the XMAX V3 Pro?

XMAX V3 Pro is the cheaper option at $110 compared with $200 for the G Pen Roam, about $90 less. Live retailer pricing can shift, so confirm before buying.

Which heats up faster, the G Pen Roam or the XMAX V3 Pro?

G Pen Roam reaches session-ready temperature in ~5 seconds, while the XMAX V3 Pro takes 15-30 seconds. That's roughly 18 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 XMAX V3 Pro?

G Pen Roam uses conduction heating, while the XMAX V3 Pro uses hybrid (primarily 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 XMAX V3 Pro?

XMAX V3 Pro is the lighter unit at 105 grams, around 212g less than the G Pen Roam at ~317g. The lighter device is easier to carry and pocket day-to-day.

Can I swap the batteries on the G Pen Roam or the XMAX V3 Pro?

XMAX V3 Pro uses 18650 (user replaceable), so you can carry spares for back-to-back days. The G Pen Roam has a built-in battery you can't swap on the go.

What battery life can I expect from the G Pen Roam and the XMAX V3 Pro?

G Pen Roam's spec sheet lists 15-20 sessions; the XMAX V3 Pro lists 30-45 minutes or 5-6 sessions. The two manufacturers measure battery life differently here, so direct comparison isn't straightforward.

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