Price (USD)
G Pen Roam edgeFocus V Carta 2
$350
G Pen Roam
$200
G Pen Roam is typically around $150 lower.
Vaporizer Comparison
Focus V Carta 2 vs G Pen Roam
Side-by-side specs, pricing context, and clear decision guidance.
Focus V Carta 2
Focus V $350
VS
G Pen Roam
Grenco Science $200
Editorial Summary
Focus V Carta 2 and G Pen Roam are both portable / electronic vaporizers, but they target different priorities. G Pen Roam is usually the lower-cost pick at $200, around $150 below Focus V Carta 2. Heat-up speed is broadly similar between the two.
Specs Compared
24
Different Specs
19
Shared Specs
5
Overall Overlap
21%
Shared Traits
Portable Electronic Concentrates
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
Close callFocus V Carta 2
5 - 10 Seconds
G Pen Roam
~5 seconds
Both devices are in a similar heat-up range.
Weight
G Pen Roam edgeFocus V Carta 2
~422g
G Pen Roam
~317g
G Pen Roam is the lighter listed unit.
Heating Style
Close callFocus V Carta 2
Conduction
G Pen Roam
Conduction
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Focus V Carta 2
$350
G Pen Roam
$200
Heat Up Time
Focus V Carta 2
5 - 10 Seconds
G Pen Roam
~5 seconds
Temperature Range
Focus V Carta 2
365°F - 635°F
G Pen Roam
204°C - 427°C (400°F - 800°F)
Battery Capacity
Focus V Carta 2
2000mAh
G Pen Roam
1300mAh
Battery Life
Focus V Carta 2
~10 sessions
G Pen Roam
15-20 sessions
Charging
Focus V Carta 2
USB-C
G Pen Roam
Micro-USB
Charge Time
Focus V Carta 2
~90 minutes
G Pen Roam
~2 hours
Dimensions
Focus V Carta 2
184x67mm
G Pen Roam
178x127x102mm
Weight
Focus V Carta 2
~422g
G Pen Roam
~317g
Power Adjustment
Focus V Carta 2
Digital
G Pen Roam
Digital Control
Choose Focus V Carta 2 if...
- Your usage leans toward conduction and premium sessions.
- You prefer Focus V Carta 2's overall feature mix and form factor.
- You value how the Focus V Carta 2 balances size, controls, and everyday practicality.
Choose G Pen Roam if...
- You want the lower listed entry price ($200 vs $350).
- You want the lighter unit for carrying and travel.
- You prefer G Pen Roam's overall feature mix and form factor.
Spec Comparison Table
Direct comparison of every spec from each device profile.
19 differ 5 shared
| Specification | Focus V Carta 2 | G Pen Roam |
|---|---|---|
| Price (USD) | $350 | $200 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Conduction |
| Heat Up Time | 5 - 10 Seconds | ~5 seconds |
| Temperature Range | 365°F - 635°F | 204°C - 427°C (400°F - 800°F) |
| Chamber Capacity | N/A | — |
| Battery Type | Internal | Internal |
| Battery Capacity | 2000mAh | 1300mAh |
| Battery Life | ~10 sessions | 15-20 sessions |
| Charging | USB-C | Micro-USB |
| Charge Time | ~90 minutes | ~2 hours |
| Pass-Through Charging | Yes | — |
| Dimensions | 184x67mm | 178x127x102mm |
| Weight | ~422g | ~317g |
| Power Adjustment | Digital | Digital Control |
| Chamber Material | Ceramic | Quartz |
| Concentrate Support | Yes | Yes |
| Brand | Focus V | Grenco Science |
| Adjustable Airflow | — | No |
| Display Type | OLED | LED |
| Haptic Feedback | — | Yes |
| Release Date | 2022 | 2020 |
| Warranty | 1 year | 1 year |
| Wireless Charging | Yes | — |
Comparison FAQs
What is the biggest difference between the Focus V Carta 2 and the G Pen Roam?
The biggest practical difference is price tier: the G Pen Roam sits at $200 while the Focus V Carta 2 is $350, a gap of about $150 that puts them in different buying brackets.
Which is cheaper, the Focus V Carta 2 or the G Pen Roam?
G Pen Roam is the cheaper option at $200 compared with $350 for the Focus V Carta 2, about $150 less. Live retailer pricing can shift, so confirm before buying.
Which is lighter, the Focus V Carta 2 or the G Pen Roam?
G Pen Roam is the lighter unit at ~317g, around 105g less than the Focus V Carta 2 at ~422g. The lighter device is easier to carry and pocket day-to-day.
Which heats up faster, the Focus V Carta 2 or the G Pen Roam?
Heat-up times are very close: 5 - 10 Seconds on the Focus V Carta 2 and ~5 seconds on the G Pen Roam. The real-world difference will be hard to notice mid-session.
Which charges faster, the Focus V Carta 2 or the G Pen Roam?
Focus V Carta 2 fully charges in ~90 minutes, ahead of ~2 hours on the G Pen Roam.
What battery life can I expect from the Focus V Carta 2 and the G Pen Roam?
Focus V Carta 2's spec sheet lists ~10 sessions; the G Pen Roam lists 15-20 sessions. The two manufacturers measure battery life differently here, so direct comparison isn't straightforward.
Can I use concentrates with the Focus V Carta 2 or the G Pen Roam?
Both devices support concentrate use, typically via an included or aftermarket pad or insert. Check the manual for the recommended approach for each.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.