Price (USD)
XMAX V3 Pro edgeG Pen Roam
$200
XMAX V3 Pro
$110
XMAX V3 Pro is typically around $90 lower.
Vaporizer Comparison
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science $200
XMAX V3 Pro
XMAX $110
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
A quick snapshot of the specs people usually care about first.
G Pen Roam
$200
XMAX V3 Pro
$110
XMAX V3 Pro is typically around $90 lower.
G Pen Roam
~5 seconds
XMAX V3 Pro
15-30 seconds
G Pen Roam has the quicker listed heat-up profile.
G Pen Roam
~317g
XMAX V3 Pro
105 grams
XMAX V3 Pro is the lighter listed unit.
G Pen Roam
Conduction
XMAX V3 Pro
Hybrid (primarily convection)
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
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
Direct comparison of every spec from each device profile.
| Specification | G Pen Roam | XMAX V3 Pro |
|---|---|---|
| Price (USD) | $200 | $110 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Hybrid (primarily convection) |
| Heat Up Time | ~5 seconds | 15-30 seconds |
| Temperature Range | 204°C - 427°C (400°F - 800°F) | 100 - 220C (212 - 428F) |
| Chamber Capacity | — | 0.1g - 0.15g |
| Battery Type | Internal | 18650 (user replaceable) |
| Battery Capacity | 1300mAh | — |
| Battery Life | 15-20 sessions | 30-45 minutes or 5-6 sessions |
| Charging | Micro-USB | USB-C |
| Charge Time | ~2 hours | — |
| Dimensions | 178x127x102mm | — |
| Width | — | 2.5cm |
| Height | — | 15cm |
| Weight | ~317g | 105 grams |
| Power Adjustment | Digital Control | Digital (precise) |
| Chamber Material | Quartz | Stainless steel |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | XMAX |
| Adjustable Airflow | No | No |
| Country of Manufacture | — | China |
| Display Type | LED | — |
| Haptic Feedback | Yes | — |
| Heating Element | — | Ceramic |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2020 | 2021 |
| Session Style | — | Both |
| Thickness | — | 2.3cm |
| Warranty | 1 year | 1 year |
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.
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.
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.
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.
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.
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.
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.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.