Price (USD)
Close callCAT
$199
G Pen Roam
$200
Pricing is very close between both devices.
Vaporizer Comparison
CAT
G Pen Roam
Side-by-side specs, pricing context, and clear decision guidance.
CAT and G Pen Roam are both portable / electronic vaporizers, but they target different priorities. Their listed prices are close ($199 vs $200). G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
15
Different Specs
13
Shared Specs
2
Overall Overlap
13%
Shared Traits
A quick snapshot of the specs people usually care about first.
CAT
$199
G Pen Roam
$200
Pricing is very close between both devices.
CAT
~30 seconds
G Pen Roam
~5 seconds
G Pen Roam has the quicker listed heat-up profile.
CAT
Convection
G Pen Roam
Conduction
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
CAT
$199
G Pen Roam
$200
Device Type
CAT
Portable
G Pen Roam
—
Heating Type
CAT
Convection
G Pen Roam
Conduction
Heat Up Time
CAT
~30 seconds
G Pen Roam
~5 seconds
Temperature Range
CAT
—
G Pen Roam
204°C - 427°C (400°F - 800°F)
Battery Type
CAT
Swappable 21700
G Pen Roam
—
Battery Capacity
CAT
4000mAh
G Pen Roam
1300mAh
Charging
CAT
USB-C
G Pen Roam
Micro-USB
Charge Time
CAT
—
G Pen Roam
~2 hours
Brand
CAT
End Game Labs
G Pen Roam
Grenco Science
Direct comparison of every spec from each device profile.
| Specification | CAT | G Pen Roam |
|---|---|---|
| Price (USD) | $199 | $200 |
| Device Type | Portable | — |
| Heating Type | Convection | Conduction |
| Heat Up Time | ~30 seconds | ~5 seconds |
| Temperature Range | — | 204°C - 427°C (400°F - 800°F) |
| Battery Type | Swappable 21700 | — |
| Battery Capacity | 4000mAh | 1300mAh |
| Charging | USB-C | Micro-USB |
| Charge Time | — | ~2 hours |
| Power Adjustment | Digital Control | Digital Control |
| Brand | End Game Labs | Grenco Science |
| 14mm Water Pipe Adapter | Yes | — |
| 18mm Water Pipe Adapter | Yes | — |
| Display Type | — | LED |
| Haptic Feedback | Yes | Yes |
The biggest practical difference is heating approach: CAT runs convection while G Pen Roam runs conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
G Pen Roam reaches session-ready temperature in ~5 seconds, while the CAT takes ~30 seconds. That's roughly 25 seconds quicker on the G Pen Roam, which is useful if you want shorter, on-demand sessions.
CAT uses convection heating, while the G Pen Roam uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Listed prices are close: $199 for the CAT versus $200 for the G Pen Roam. Day-to-day price will likely come down to whichever retailer is running a promotion.
Only the CAT has a documented water-pipe adapter option. The G Pen Roam doesn't list one, though aftermarket adapters sometimes exist for popular models.
CAT charges over USB-C; the G Pen Roam uses a Micro-USB port. USB-C means one fewer cable to keep around if your phone and laptop already use it.
Across the 15 specs we line up, they share 2 and differ on 13, an overlap of about 13%. The differences are concentrated in the areas the spec table highlights with a marker.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.