Price (USD)
G Pen Pro edgeG Pen Pro
$90
PAX 3
$250
G Pen Pro is typically around $160 lower.
Vaporizer Comparison
G Pen Pro vs PAX 3
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
PAX 3
PAX Labs $250
Editorial Summary
G Pen Pro and PAX 3 are both portable / electronic vaporizers, but they target different priorities. G Pen Pro is usually the lower-cost pick at $90, around $160 below PAX 3. Heat-up speed is broadly similar between the two.
Specs Compared
21
Different Specs
19
Shared Specs
2
Overall Overlap
10%
Shared Traits
Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
Close callG Pen Pro
~30 seconds
PAX 3
<30 seconds
Both devices are in a similar heat-up range.
Heating Style
Close callG Pen Pro
Convection
PAX 3
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
PAX 3
$250
Heating Type
G Pen Pro
Convection
PAX 3
Conduction
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
PAX 3
182°C - 215°C (360°F - 420°F)
Chamber Capacity
G Pen Pro
~0.25 grams
PAX 3
0.35 - 0.5 grams
Battery Type
G Pen Pro
Internal
PAX 3
Internal 18650
Battery Capacity
G Pen Pro
2200mAh
PAX 3
3500mAh
Charging
G Pen Pro
Micro-USB
PAX 3
Proprietary Dock
Charge Time
G Pen Pro
<3 hours
PAX 3
~90 minutes
Power Adjustment
G Pen Pro
Modular - 3 Stages
PAX 3
Modular - 4 stages
Chamber Material
G Pen Pro
Ceramic
PAX 3
Stainless Steel
Choose G Pen Pro if...
- You want the lower listed entry price ($90 vs $250).
- You prefer a convection heating profile.
- Your usage leans toward budget and convection sessions.
Choose PAX 3 if...
- You prefer a conduction heating profile.
- Your usage leans toward conduction and concentrates sessions.
- You prefer PAX 3's overall feature mix and form factor.
Typical price
$250
Sold by To the Cloud Vapor Store
Prices are read automatically from retailer pages; 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.
19 differ 2 shared
| Specification | G Pen Pro | PAX 3 |
|---|---|---|
| Price (USD) | $90 | $250 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Conduction |
| Heat Up Time | ~30 seconds | <30 seconds |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 182°C - 215°C (360°F - 420°F) |
| Chamber Capacity | ~0.25 grams | 0.35 - 0.5 grams |
| Battery Type | Internal | Internal 18650 |
| Battery Capacity | 2200mAh | 3500mAh |
| Battery Life | — | ~90 minutes |
| Charging | Micro-USB | Proprietary Dock |
| Charge Time | <3 hours | ~90 minutes |
| Bluetooth / App | — | Yes |
| Dimensions | — | 98mm x 31mm x 22mm |
| Weight | — | ~93 grams |
| Power Adjustment | Modular - 3 Stages | Modular - 4 stages |
| Chamber Material | Ceramic | Stainless Steel |
| Concentrate Support | — | Yes |
| Brand | Grenco Science | PAX Labs |
| Release Date | 2017 | 2016 |
| Session Style | Session | — |
| Warranty | 1 year | 10 years |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the PAX 3?
The biggest practical difference is price tier: the G Pen Pro sits at $90 while the PAX 3 is $250, a gap of about $160 that puts them in different buying brackets.
Which is cheaper, the G Pen Pro or the PAX 3?
G Pen Pro is the cheaper option at $90 compared with $250 for the PAX 3, about $160 less. Live retailer pricing can shift, so confirm before buying.
What's the difference in heating between the G Pen Pro and the PAX 3?
G Pen Pro uses convection heating, while the PAX 3 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 PAX 3 hold more flower?
PAX 3 has the larger chamber at 0.35 - 0.5 grams, 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.
Which heats up faster, the G Pen Pro or the PAX 3?
Heat-up times are very close: ~30 seconds on the G Pen Pro and <30 seconds on the PAX 3. The real-world difference will be hard to notice mid-session.
Which charges faster, the G Pen Pro or the PAX 3?
PAX 3 fully charges in ~90 minutes, ahead of <3 hours on the G Pen Pro.
Which is more discreet, the G Pen Pro or the PAX 3?
PAX 3 is the better pick if low-profile use matters. It's tagged as stealth or pocket-friendly in our database, while the G Pen Pro is more conspicuous in hand and harder to keep out of sight.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.