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 (260°F - 420°F)
Chamber Capacity
G Pen Pro
~0.25 grams
PAX 3
<0.35 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.
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 (260°F - 420°F) |
| Chamber Capacity | ~0.25 grams | <0.35 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 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.