Price (USD)
Close callFocus V Carta Classic
$200
G Pen Roam
$200
Pricing is very close between both devices.
Vaporizer Comparison
Focus V Carta Classic
G Pen Roam
Side-by-side specs, pricing context, and clear decision guidance.
Focus V Carta Classic and G Pen Roam are both portable / electronic vaporizers, but they target different priorities. Their listed prices are close ($200 vs $200). Heat-up speed is broadly similar between the two.
Specs Compared
13
Different Specs
10
Shared Specs
3
Overall Overlap
23%
Shared Traits
A quick snapshot of the specs people usually care about first.
Focus V Carta Classic
$200
G Pen Roam
$200
Pricing is very close between both devices.
Focus V Carta Classic
~10 Seconds
G Pen Roam
~5 seconds
Both devices are in a similar heat-up range.
Focus V Carta Classic
Conduction
G Pen Roam
Conduction
Both devices use a similar heating approach.
Top specs where these two devices diverge.
Heat Up Time
Focus V Carta Classic
~10 Seconds
G Pen Roam
~5 seconds
Temperature Range
Focus V Carta Classic
600°F - 940°F
G Pen Roam
204°C - 427°C (400°F - 800°F)
Battery Type
Focus V Carta Classic
2x 18350 Batteries
G Pen Roam
—
Battery Capacity
Focus V Carta Classic
2400mAh (1200mAh x 2)
G Pen Roam
1300mAh
Charging
Focus V Carta Classic
USB-C
G Pen Roam
Micro-USB
Bluetooth / App
Focus V Carta Classic
Yes
G Pen Roam
—
Power Adjustment
Focus V Carta Classic
Modular - 4 Stages or Precision Control via App
G Pen Roam
Digital Control
Brand
Focus V Carta Classic
Focus V
G Pen Roam
Grenco Science
Display Type
Focus V Carta Classic
—
G Pen Roam
LED
Haptic Feedback
Focus V Carta Classic
—
G Pen Roam
Yes
Direct comparison of every spec from each device profile.
| Specification | Focus V Carta Classic | G Pen Roam |
|---|---|---|
| Price (USD) | $200 | $200 |
| Heating Type | Conduction | Conduction |
| Heat Up Time | ~10 Seconds | ~5 seconds |
| Temperature Range | 600°F - 940°F | 204°C - 427°C (400°F - 800°F) |
| Battery Type | 2x 18350 Batteries | — |
| Battery Capacity | 2400mAh (1200mAh x 2) | 1300mAh |
| Charging | USB-C | Micro-USB |
| Charge Time | ~2 Hours | ~2 hours |
| Bluetooth / App | Yes | — |
| Power Adjustment | Modular - 4 Stages or Precision Control via App | Digital Control |
| Brand | Focus V | Grenco Science |
| Display Type | — | LED |
| Haptic Feedback | — | Yes |
There's no single headline gap. The differences are spread across 10 smaller spec rows rather than concentrated in one place. The spec table below marks each row that differs.
G Pen Roam reaches session-ready temperature in ~5 seconds, while the Focus V Carta Classic takes ~10 Seconds. That's roughly 5 seconds quicker on the G Pen Roam, which is useful if you want shorter, on-demand sessions.
Listed prices are close: $200 for the Focus V Carta Classic versus $200 for the G Pen Roam. Day-to-day price will likely come down to whichever retailer is running a promotion.
Only the Focus V Carta Classic pairs with a companion app. The G Pen Roam relies entirely on its on-device controls.
Focus V Carta Classic 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 13 specs we line up, they share 3 and differ on 10, an overlap of about 23%. 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.