Price (USD)
G Pen Roam edgeG Pen Roam
$100
OG Jams
$200
G Pen Roam is typically around $100 lower.
Vaporizer Comparison
G Pen Roam vs OG Jams
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science from $49.95
VS
OG Jams
The Kind Pen from $184.99
Editorial Summary
G Pen Roam and OG Jams are both portable / electronic vaporizers, but they target different priorities. G Pen Roam is usually the lower-cost pick at $100, around $100 below OG Jams. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
23
Different Specs
20
Shared Specs
3
Overall Overlap
13%
Shared Traits
Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callG Pen Roam
Conduction
OG Jams
Conduction
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
G Pen Roam
$100
OG Jams
$200
Temperature Range
G Pen Roam
204°C - 427°C (400°F - 800°F)
OG Jams
302°F - 436°F
Battery Capacity
G Pen Roam
1300mAh
OG Jams
2000mAh
Battery Life
G Pen Roam
15-20 sessions
OG Jams
~3-4 hours
Charging
G Pen Roam
Micro-USB
OG Jams
USB-C
Charge Time
G Pen Roam
~2 hours
OG Jams
~1-2 hours
Power Adjustment
G Pen Roam
Digital Control
OG Jams
Digital
Chamber Material
G Pen Roam
Quartz
OG Jams
Ceramic
Brand
G Pen Roam
Grenco Science
OG Jams
The Kind Pen
Adjustable Airflow
G Pen Roam
No
OG Jams
Yes
Choose G Pen Roam if...
- You want the lower listed entry price ($100 vs $200).
- Your usage leans toward concentrates sessions.
- You prefer G Pen Roam's overall feature mix and form factor.
Lowest price
$49.95
at G Pen
Choose OG Jams if...
- Your usage leans toward conduction sessions.
- You prefer OG Jams's overall feature mix and form factor.
- You value how the OG Jams balances size, controls, and everyday practicality.
Lowest price
$184.99
at The Kind 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.
20 differ 3 shared
| Specification | G Pen Roam | OG Jams |
|---|---|---|
| Price (USD) | $100 | $200 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Conduction |
| Heat Up Time | ~5 seconds | — |
| Temperature Range | 204°C - 427°C (400°F - 800°F) | 302°F - 436°F |
| Chamber Capacity | — | 1 gram |
| Battery Type | Internal | — |
| Battery Capacity | 1300mAh | 2000mAh |
| Battery Life | 15-20 sessions | ~3-4 hours |
| Charging | Micro-USB | USB-C |
| Charge Time | ~2 hours | ~1-2 hours |
| Dimensions | — | 114 x 30 x 13mm |
| Weight | ~317g | — |
| Power Adjustment | Digital Control | Digital |
| Chamber Material | Quartz | Ceramic |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | The Kind Pen |
| Adjustable Airflow | No | Yes |
| Display Type | LED | OLED |
| Haptic Feedback | Yes | Yes |
| Release Date | 2020 | — |
| Session Style | — | Session |
| Warranty | 1 year | Lifetime |
Comparison FAQs
What is the biggest difference between the G Pen Roam and the OG Jams?
The biggest practical difference is price tier: the G Pen Roam sits at $100 while the OG Jams is $200, a gap of about $100 that puts them in different buying brackets.
Which is cheaper, the G Pen Roam or the OG Jams?
G Pen Roam is the cheaper option at $100 compared with $200 for the OG Jams, about $100 less. Live retailer pricing can shift, so confirm before buying.
Which charges faster, the G Pen Roam or the OG Jams?
OG Jams fully charges in ~1-2 hours, ahead of ~2 hours on the G Pen Roam.
What battery life can I expect from the G Pen Roam and the OG Jams?
G Pen Roam's spec sheet lists 15-20 sessions; the OG Jams lists ~3-4 hours. The two manufacturers measure battery life differently here, so direct comparison isn't straightforward.
Which uses USB-C, the G Pen Roam or the OG Jams?
OG Jams 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.
How similar are the G Pen Roam and the OG Jams?
Across the 23 specs we line up, they share 3 and differ on 20, an overlap of about 13%. The differences are concentrated in the areas the spec table highlights with a marker.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.