Price (USD)
G Pen Pro edgeG Pen Pro
$90
OG Jams
$200
G Pen Pro is typically around $110 lower.
Vaporizer Comparison
G Pen Pro vs OG Jams
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
OG Jams
The Kind Pen from $184.99
Editorial Summary
G Pen Pro and OG Jams are both portable / electronic vaporizers, but they target different priorities. G Pen Pro is usually the lower-cost pick at $90, around $110 below OG Jams. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
21
Different Specs
18
Shared Specs
3
Overall Overlap
14%
Shared Traits
Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callG Pen Pro
Convection
OG Jams
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)
G Pen Pro
$90
OG Jams
$200
Heating Type
G Pen Pro
Convection
OG Jams
Conduction
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
OG Jams
302°F - 436°F
Chamber Capacity
G Pen Pro
~0.25 grams
OG Jams
1 gram
Battery Capacity
G Pen Pro
2200mAh
OG Jams
2000mAh
Charging
G Pen Pro
Micro-USB
OG Jams
USB-C
Charge Time
G Pen Pro
<3 hours
OG Jams
~1-2 hours
Power Adjustment
G Pen Pro
Modular - 3 Stages
OG Jams
Digital
Brand
G Pen Pro
Grenco Science
OG Jams
The Kind Pen
Warranty
G Pen Pro
1 year
OG Jams
Lifetime
Choose G Pen Pro if...
- You want the lower listed entry price ($90 vs $200).
- You prefer a convection heating profile.
- Your usage leans toward budget and convection sessions.
Choose OG Jams if...
- You prefer a conduction heating profile.
- Your usage leans toward conduction sessions.
- You prefer OG Jams's overall feature mix and form factor.
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.
18 differ 3 shared
| Specification | G Pen Pro | OG Jams |
|---|---|---|
| Price (USD) | $90 | $200 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Conduction |
| Heat Up Time | ~30 seconds | — |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 302°F - 436°F |
| Chamber Capacity | ~0.25 grams | 1 gram |
| Battery Type | Internal | — |
| Battery Capacity | 2200mAh | 2000mAh |
| Battery Life | — | ~3-4 hours |
| Charging | Micro-USB | USB-C |
| Charge Time | <3 hours | ~1-2 hours |
| Dimensions | — | 114 x 30 x 13mm |
| Power Adjustment | Modular - 3 Stages | Digital |
| Chamber Material | Ceramic | Ceramic |
| Brand | Grenco Science | The Kind Pen |
| Adjustable Airflow | — | Yes |
| Display Type | — | OLED |
| Haptic Feedback | — | Yes |
| Release Date | 2017 | — |
| Session Style | Session | Session |
| Warranty | 1 year | Lifetime |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the OG Jams?
The biggest practical difference is price tier: the G Pen Pro sits at $90 while the OG Jams is $200, a gap of about $110 that puts them in different buying brackets.
Which is cheaper, the G Pen Pro or the OG Jams?
G Pen Pro is the cheaper option at $90 compared with $200 for the OG Jams, about $110 less. Live retailer pricing can shift, so confirm before buying.
What's the difference in heating between the G Pen Pro and the OG Jams?
G Pen Pro uses convection heating, while the OG Jams uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Does the G Pen Pro or the OG Jams hold more flower?
OG Jams has the larger chamber at 1 gram, versus ~0.25 grams on the G Pen Pro. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Can I set custom temperatures on the G Pen Pro or the OG Jams?
G Pen Pro controls heat with modular - 3 stages, while the OG Jams uses digital. OG Jams gives you finer per-degree control.
Which charges faster, the G Pen Pro or the OG Jams?
OG Jams fully charges in ~1-2 hours, ahead of <3 hours on the G Pen Pro.
Which uses USB-C, the G Pen Pro or the OG Jams?
OG Jams charges over USB-C; the G Pen Pro uses a Micro-USB port. USB-C means one fewer cable to keep around if your phone and laptop already use it.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.