Price (USD)
Close callG Pen Roam
$100
XMAX QOMO
$89
Pricing is very close between both devices.
Vaporizer Comparison
G Pen Roam vs XMAX QOMO
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science from $49.95
VS
XMAX QOMO
XMAX from $59.99
Editorial Summary
G Pen Roam and XMAX QOMO are both portable / electronic vaporizers, but they target different priorities. Their listed prices are close ($100 vs $89). G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
24
Different Specs
18
Shared Specs
6
Overall Overlap
25%
Shared Traits
Portable Electronic Concentrates
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
G Pen Roam edgeG Pen Roam
~5 seconds
XMAX QOMO
~20 seconds
G Pen Roam has the quicker listed heat-up profile.
Heating Style
Close callG Pen Roam
Conduction
XMAX QOMO
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
XMAX QOMO
$89
Heat Up Time
G Pen Roam
~5 seconds
XMAX QOMO
~20 seconds
Temperature Range
G Pen Roam
204°C - 427°C (400°F - 800°F)
XMAX QOMO
280°C - 350°C (536°F - 662°F)
Battery Capacity
G Pen Roam
1300mAh
XMAX QOMO
1350mAh
Battery Life
G Pen Roam
15-20 sessions
XMAX QOMO
10-20 Sessions
Charging
G Pen Roam
Micro-USB
XMAX QOMO
USB-C
Charge Time
G Pen Roam
~2 hours
XMAX QOMO
1-2 Hours
Power Adjustment
G Pen Roam
Digital Control
XMAX QOMO
Modular - 3 Stages
Chamber Material
G Pen Roam
Quartz
XMAX QOMO
Ceramic
Brand
G Pen Roam
Grenco Science
XMAX QOMO
XMAX
Choose G Pen Roam if...
- You care about faster heat-up time for quicker sessions.
- You prefer G Pen Roam's overall feature mix and form factor.
- You value how the G Pen Roam balances size, controls, and everyday practicality.
Lowest price
$49.95
at G Pen
Choose XMAX QOMO if...
- Your usage leans toward budget and conduction sessions.
- You prefer XMAX QOMO's overall feature mix and form factor.
- You value how the XMAX QOMO balances size, controls, and everyday practicality.
Lowest price
$59.99
at The Stash Shack
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 6 shared
| Specification | G Pen Roam | XMAX QOMO |
|---|---|---|
| Price (USD) | $100 | $89 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Conduction |
| Heat Up Time | ~5 seconds | ~20 seconds |
| Temperature Range | 204°C - 427°C (400°F - 800°F) | 280°C - 350°C (536°F - 662°F) |
| Chamber Capacity | — | 0.15g |
| Battery Type | Internal | Internal |
| Battery Capacity | 1300mAh | 1350mAh |
| Battery Life | 15-20 sessions | 10-20 Sessions |
| Charging | Micro-USB | USB-C |
| Charge Time | ~2 hours | 1-2 Hours |
| Dimensions | — | 127x50x29.6mm |
| Weight | ~317g | — |
| Power Adjustment | Digital Control | Modular - 3 Stages |
| Chamber Material | Quartz | Ceramic |
| Concentrate Support | Yes | Yes |
| Brand | Grenco Science | XMAX |
| Adjustable Airflow | No | — |
| Country of Manufacture | — | China |
| Display Type | LED | — |
| Haptic Feedback | Yes | — |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2020 | 2020 |
| Warranty | 1 year | 1 year |
Comparison FAQs
What is the biggest difference between the G Pen Roam and the XMAX QOMO?
There's no single headline gap. The differences are spread across 18 smaller spec rows rather than concentrated in one place. The spec table below marks each row that differs.
Which heats up faster, the G Pen Roam or the XMAX QOMO?
G Pen Roam reaches session-ready temperature in ~5 seconds, while the XMAX QOMO takes ~20 seconds. That's roughly 15 seconds quicker on the G Pen Roam, which is useful if you want shorter, on-demand sessions.
Which is cheaper, the G Pen Roam or the XMAX QOMO?
Listed prices are close: $100 for the G Pen Roam versus $89 for the XMAX QOMO. Day-to-day price will likely come down to whichever retailer is running a promotion.
Can I set custom temperatures on the G Pen Roam or the XMAX QOMO?
G Pen Roam controls heat with digital control, while the XMAX QOMO uses modular - 3 stages. G Pen Roam gives you finer per-degree control.
Which charges faster, the G Pen Roam or the XMAX QOMO?
XMAX QOMO 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 XMAX QOMO?
G Pen Roam's spec sheet lists 15-20 sessions; the XMAX QOMO lists 10-20 Sessions. The two manufacturers measure battery life differently here, so direct comparison isn't straightforward.
Which has a wider temperature range, the G Pen Roam or the XMAX QOMO?
G Pen Roam covers 204°C - 427°C (400°F - 800°F), a wider band than the XMAX QOMO at 280°C - 350°C (536°F - 662°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.