Price (USD)
POTV ONE edgeG Pen Roam
$200
POTV ONE
$100
POTV ONE is typically around $100 lower.
Vaporizer Comparison
G Pen Roam vs POTV ONE
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science $200
VS
POTV ONE
Planet of the Vapes $100
Editorial Summary
G Pen Roam and POTV ONE are both portable / electronic vaporizers, but they target different priorities. POTV ONE is usually the lower-cost pick at $100, around $100 below G Pen Roam. G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
23
Different Specs
19
Shared Specs
4
Overall Overlap
17%
Shared Traits
Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
G Pen Roam edgeG Pen Roam
~5 seconds
POTV ONE
30-40 Seconds
G Pen Roam has the quicker listed heat-up profile.
Weight
POTV ONE edgeG Pen Roam
~317g
POTV ONE
~130 grams
POTV ONE is the lighter listed unit.
Heating Style
Close callG Pen Roam
Conduction
POTV ONE
Convection
Heating style differs, which can impact flavor and extraction behavior.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
G Pen Roam
$200
POTV ONE
$100
Heating Type
G Pen Roam
Conduction
POTV ONE
Convection
Heat Up Time
G Pen Roam
~5 seconds
POTV ONE
30-40 Seconds
Temperature Range
G Pen Roam
204°C - 427°C (400°F - 800°F)
POTV ONE
160-221°C (320-430°F)
Battery Capacity
G Pen Roam
1300mAh
POTV ONE
1600mAh
Battery Life
G Pen Roam
15-20 sessions
POTV ONE
30-40 Minutes
Charge Time
G Pen Roam
~2 hours
POTV ONE
~90 Minutes
Dimensions
G Pen Roam
178x127x102mm
POTV ONE
8.1x5x2.7cm
Weight
G Pen Roam
~317g
POTV ONE
~130 grams
Power Adjustment
G Pen Roam
Digital Control
POTV ONE
Digital (precise)
Choose G Pen Roam if...
- You care about faster heat-up time for quicker sessions.
- You prefer a conduction heating profile.
- Your usage leans toward concentrates sessions.
Choose POTV ONE if...
- You want the lower listed entry price ($100 vs $200).
- You want the lighter unit for carrying and travel.
- You prefer a convection heating profile.
- Your usage leans toward convection and budget sessions.
Spec Comparison Table
Direct comparison of every spec from each device profile.
19 differ 4 shared
| Specification | G Pen Roam | POTV ONE |
|---|---|---|
| Price (USD) | $200 | $100 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Convection |
| Heat Up Time | ~5 seconds | 30-40 Seconds |
| Temperature Range | 204°C - 427°C (400°F - 800°F) | 160-221°C (320-430°F) |
| Chamber Capacity | — | 0.10g - 0.15g |
| Battery Type | Internal | Internal |
| Battery Capacity | 1300mAh | 1600mAh |
| Battery Life | 15-20 sessions | 30-40 Minutes |
| Charging | Micro-USB | Micro-USB |
| Charge Time | ~2 hours | ~90 Minutes |
| Dimensions | 178x127x102mm | 8.1x5x2.7cm |
| Weight | ~317g | ~130 grams |
| Power Adjustment | Digital Control | Digital (precise) |
| Chamber Material | Quartz | Titanium |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | Planet of the Vapes |
| Adjustable Airflow | No | — |
| Display Type | LED | — |
| Haptic Feedback | Yes | Yes |
| Release Date | 2020 | 2019 |
| Session Style | — | Session |
| Warranty | 1 year | 2 years |
Comparison FAQs
What is the biggest difference between the G Pen Roam and the POTV ONE?
The biggest practical difference is price tier: the POTV ONE sits at $100 while the G Pen Roam is $200, a gap of about $100 that puts them in different buying brackets.
Which is cheaper, the G Pen Roam or the POTV ONE?
POTV ONE is the cheaper option at $100 compared with $200 for the G Pen Roam, about $100 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the G Pen Roam or the POTV ONE?
G Pen Roam reaches session-ready temperature in ~5 seconds, while the POTV ONE takes 30-40 Seconds. That's roughly 30 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 G Pen Roam and the POTV ONE?
G Pen Roam uses conduction heating, while the POTV ONE uses convection. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Which is lighter, the G Pen Roam or the POTV ONE?
POTV ONE is the lighter unit at ~130 grams, around 187g less than the G Pen Roam at ~317g. The lighter device is easier to carry and pocket day-to-day.
Which charges faster, the G Pen Roam or the POTV ONE?
POTV ONE fully charges in ~90 Minutes, ahead of ~2 hours on the G Pen Roam.
What battery life can I expect from the G Pen Roam and the POTV ONE?
G Pen Roam's spec sheet lists 15-20 sessions; the POTV ONE lists 30-40 Minutes. The two manufacturers measure battery life differently here, so direct comparison isn't straightforward.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.