Price (USD)
G Pen Roam edgeFocus V Carta Sport
$235
G Pen Roam
$100
G Pen Roam is typically around $135 lower.
Vaporizer Comparison
Focus V Carta Sport vs G Pen Roam
Side-by-side specs, pricing context, and clear decision guidance.
Focus V Carta Sport
Focus V $235
VS
G Pen Roam
Grenco Science from $49.95
Editorial Summary
Focus V Carta Sport and G Pen Roam are both portable / concentrates vaporizers, but they target different priorities. G Pen Roam is usually the lower-cost pick at $100, around $135 below Focus V Carta Sport. Heat-up speed is broadly similar between the two.
Specs Compared
27
Different Specs
25
Shared Specs
2
Overall Overlap
7%
Shared Traits
Portable Concentrates Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
Close callFocus V Carta Sport
~10 seconds
G Pen Roam
~5 seconds
Both devices are in a similar heat-up range.
Heating Style
Close callFocus V Carta Sport
Conduction (Intelli-Core, heated floor and side walls)
G Pen Roam
Conduction
Heating style differs, which can impact flavor and extraction behavior.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Focus V Carta Sport
$235
G Pen Roam
$100
Heating Type
Focus V Carta Sport
Conduction (Intelli-Core, heated floor and side walls)
G Pen Roam
Conduction
Heat Up Time
Focus V Carta Sport
~10 seconds
G Pen Roam
~5 seconds
Temperature Range
Focus V Carta Sport
249-296°C (480-565°F) across five presets, wider custom range in the app
G Pen Roam
204°C - 427°C (400°F - 800°F)
Battery Type
Focus V Carta Sport
Internal, sealed
G Pen Roam
Internal
Battery Capacity
Focus V Carta Sport
2700mAh (35% larger than the Carta 2)
G Pen Roam
1300mAh
Battery Life
Focus V Carta Sport
Focus V quotes 50+ dabs, closer to 30-35 at mid temperatures
G Pen Roam
15-20 sessions
Charging
Focus V Carta Sport
USB-C (Focus V wireless charger sold separately)
G Pen Roam
Micro-USB
Charge Time
Focus V Carta Sport
~90 minutes
G Pen Roam
~2 hours
Power Adjustment
Focus V Carta Sport
Five presets plus custom values in the V Browser app
G Pen Roam
Digital Control
Choose Focus V Carta Sport if...
- You prefer a conduction (intelli-core, heated floor and side walls) heating profile.
- Your usage leans toward conduction and glass sessions.
- You prefer Focus V Carta Sport's overall feature mix and form factor.
Typical price
$235
Sold by The Stash Shack
Choose G Pen Roam if...
- You want the lower listed entry price ($100 vs $235).
- You prefer a conduction heating profile.
- You prefer G Pen Roam's overall feature mix and form factor.
Lowest price
$49.95
at G Pen
Prices are read automatically from retailer pages and were last checked Aug 27, 2026; confirm the price at checkout. Some links are affiliate links, which support Thermal Extractions at no extra cost to you.
Spec Comparison Table
Direct comparison of every spec from each device profile.
25 differ 2 shared
| Specification | Focus V Carta Sport | G Pen Roam |
|---|---|---|
| Price (USD) | $235 | $100 |
| Device Type | Portable | Portable |
| Heating Type | Conduction (Intelli-Core, heated floor and side walls) | Conduction |
| Heat Up Time | ~10 seconds | ~5 seconds |
| Temperature Range | 249-296°C (480-565°F) across five presets, wider custom range in the app | 204°C - 427°C (400°F - 800°F) |
| Battery Type | Internal, sealed | Internal |
| Battery Capacity | 2700mAh (35% larger than the Carta 2) | 1300mAh |
| Battery Life | Focus V quotes 50+ dabs, closer to 30-35 at mid temperatures | 15-20 sessions |
| Charging | USB-C (Focus V wireless charger sold separately) | Micro-USB |
| Charge Time | ~90 minutes | ~2 hours |
| Pass-Through Charging | Yes | — |
| Weight | — | ~317g |
| Power Adjustment | Five presets plus custom values in the V Browser app | Digital Control |
| Chamber Material | Quartz lined ceramic (Intelli-Core for Oil) | Quartz |
| Concentrate Support | Yes (dry herb with the separate Intelli-Core for Herb atomizer) | Yes |
| Brand | Focus V | Grenco Science |
| Adjustable Airflow | Control Stick carb cap steers airflow, no airflow dial | No |
| App Control | Yes, V Browser over Bluetooth | — |
| Body Material | Aircraft grade aluminium with a textured silicone grip | — |
| Display Type | RGB LED ring (no screen) | LED |
| Haptic Feedback | Yes | Yes |
| Heat Cycle Duration | Adjustable from 20 to 120 seconds in the app | — |
| Manufacturer | Focus V | — |
| Release Date | 2025 | 2020 |
| Session Style | Session | — |
| Warranty | 1 year on the base, 6 months on Intelli-Core atomizers, 7 days on glass tops | 1 year |
| Water Filtration | Yes, borosilicate CARTA Glass top | — |
Comparison FAQs
What is the biggest difference between the Focus V Carta Sport and the G Pen Roam?
The biggest practical difference is price tier: the G Pen Roam sits at $100 while the Focus V Carta Sport is $235, a gap of about $135 that puts them in different buying brackets.
Which is cheaper, the Focus V Carta Sport or the G Pen Roam?
G Pen Roam is the cheaper option at $100 compared with $235 for the Focus V Carta Sport, about $135 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the Focus V Carta Sport or the G Pen Roam?
G Pen Roam reaches session-ready temperature in ~5 seconds, while the Focus V Carta Sport takes ~10 seconds. That's roughly 5 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 Focus V Carta Sport and the G Pen Roam?
Focus V Carta Sport uses conduction (intelli-core, heated floor and side walls) heating, while the G Pen Roam uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Which charges faster, the Focus V Carta Sport or the G Pen Roam?
Focus V Carta Sport 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 Sport and the G Pen Roam?
Focus V Carta Sport's spec sheet lists Focus V quotes 50+ dabs, closer to 30-35 at mid temperatures; the G Pen Roam lists 15-20 sessions. The two manufacturers measure battery life differently here, so direct comparison isn't straightforward.
Which has a wider temperature range, the Focus V Carta Sport or the G Pen Roam?
G Pen Roam covers 204°C - 427°C (400°F - 800°F), a wider band than the Focus V Carta Sport at 249-296°C (480-565°F) across five presets, wider custom range in the app. A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.