Price (USD)
Close callG Pen Pro
$90
XMAX QOMO
$89
Pricing is very close between both devices.
Vaporizer Comparison
G Pen Pro vs XMAX QOMO
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
XMAX QOMO
XMAX from $59.99
Editorial Summary
G Pen Pro and XMAX QOMO are both portable / budget vaporizers, but they target different priorities. Their listed prices are close ($90 vs $89). XMAX QOMO has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
21
Different Specs
16
Shared Specs
5
Overall Overlap
24%
Shared Traits
Portable Budget Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
XMAX QOMO edgeG Pen Pro
~30 seconds
XMAX QOMO
~20 seconds
XMAX QOMO has the quicker listed heat-up profile.
Heating Style
Close callG Pen Pro
Convection
XMAX QOMO
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
XMAX QOMO
$89
Heating Type
G Pen Pro
Convection
XMAX QOMO
Conduction
Heat Up Time
G Pen Pro
~30 seconds
XMAX QOMO
~20 seconds
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
XMAX QOMO
280°C - 350°C (536°F - 662°F)
Chamber Capacity
G Pen Pro
~0.25 grams
XMAX QOMO
0.15g
Battery Capacity
G Pen Pro
2200mAh
XMAX QOMO
1350mAh
Charging
G Pen Pro
Micro-USB
XMAX QOMO
USB-C
Charge Time
G Pen Pro
<3 hours
XMAX QOMO
1-2 Hours
Brand
G Pen Pro
Grenco Science
XMAX QOMO
XMAX
Release Date
G Pen Pro
2017
XMAX QOMO
2020
Choose G Pen Pro if...
- You prefer a convection heating profile.
- Your usage leans toward convection sessions.
- You prefer G Pen Pro's overall feature mix and form factor.
Choose XMAX QOMO if...
- You care about faster heat-up time for quicker sessions.
- You prefer a conduction heating profile.
- Your usage leans toward concentrates and conduction sessions.
Lowest price
$59.99
at The Stash Shack
Prices are read automatically from retailer pages and were last checked Sep 3, 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.
16 differ 5 shared
| Specification | G Pen Pro | XMAX QOMO |
|---|---|---|
| Price (USD) | $90 | $89 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Conduction |
| Heat Up Time | ~30 seconds | ~20 seconds |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 280°C - 350°C (536°F - 662°F) |
| Chamber Capacity | ~0.25 grams | 0.15g |
| Battery Type | Internal | Internal |
| Battery Capacity | 2200mAh | 1350mAh |
| Battery Life | — | 10-20 Sessions |
| Charging | Micro-USB | USB-C |
| Charge Time | <3 hours | 1-2 Hours |
| Dimensions | — | 127x50x29.6mm |
| Power Adjustment | Modular - 3 Stages | Modular - 3 Stages |
| Chamber Material | Ceramic | Ceramic |
| Concentrate Support | — | Yes |
| Brand | Grenco Science | XMAX |
| Country of Manufacture | — | China |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2017 | 2020 |
| Session Style | Session | — |
| Warranty | 1 year | 1 year |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the XMAX QOMO?
The biggest practical difference is heating approach: G Pen Pro runs convection while XMAX QOMO runs conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Which heats up faster, the G Pen Pro or the XMAX QOMO?
XMAX QOMO reaches session-ready temperature in ~20 seconds, while the G Pen Pro takes ~30 seconds. That's roughly 10 seconds quicker on the XMAX QOMO, which is useful if you want shorter, on-demand sessions.
What's the difference in heating between the G Pen Pro and the XMAX QOMO?
G Pen Pro uses convection heating, while the XMAX QOMO 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 XMAX QOMO hold more flower?
G Pen Pro has the larger chamber at ~0.25 grams, versus 0.15g on the XMAX QOMO. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Which is cheaper, the G Pen Pro or the XMAX QOMO?
Listed prices are close: $90 for the G Pen Pro versus $89 for the XMAX QOMO. Day-to-day price will likely come down to whichever retailer is running a promotion.
Which charges faster, the G Pen Pro or the XMAX QOMO?
XMAX QOMO fully charges in 1-2 Hours, ahead of <3 hours on the G Pen Pro.
Which has a wider temperature range, the G Pen Pro or the XMAX QOMO?
XMAX QOMO covers 280°C - 350°C (536°F - 662°F), a wider band than the G Pen Pro at 190°C - 220°C (375°F - 428°F). A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.