Price (USD)
XMAX OONT edgeG Pen Roam
$100
XMAX OONT
$50
XMAX OONT is typically around $50 lower.
Vaporizer Comparison
G Pen Roam vs XMAX OONT
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science from $49.95
VS
XMAX OONT
XMAX $50
Editorial Summary
G Pen Roam and XMAX OONT are both portable / electronic vaporizers, but they target different priorities. XMAX OONT is usually the lower-cost pick at $50, around $50 below G Pen Roam. G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
25
Different Specs
21
Shared Specs
4
Overall Overlap
16%
Shared Traits
Portable Electronic
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 OONT
~20 seconds
G Pen Roam has the quicker listed heat-up profile.
Heating Style
Close callG Pen Roam
Conduction
XMAX OONT
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 OONT
$50
Heat Up Time
G Pen Roam
~5 seconds
XMAX OONT
~20 seconds
Temperature Range
G Pen Roam
204°C - 427°C (400°F - 800°F)
XMAX OONT
180℃-220℃ (356℉-428℉)
Battery Type
G Pen Roam
Internal
XMAX OONT
Internal 18500
Battery Capacity
G Pen Roam
1300mAh
XMAX OONT
1500mAh
Battery Life
G Pen Roam
15-20 sessions
XMAX OONT
12+ sessions
Charging
G Pen Roam
Micro-USB
XMAX OONT
USB-C
Power Adjustment
G Pen Roam
Digital Control
XMAX OONT
5 Preset Modes
Chamber Material
G Pen Roam
Quartz
XMAX OONT
Ceramic
Brand
G Pen Roam
Grenco Science
XMAX OONT
XMAX
Choose G Pen Roam if...
- You care about faster heat-up time for quicker sessions.
- Your usage leans toward concentrates sessions.
- You prefer G Pen Roam's overall feature mix and form factor.
Lowest price
$49.95
at G Pen
Choose XMAX OONT if...
- You want the lower listed entry price ($50 vs $100).
- Your usage leans toward conduction and budget sessions.
- You prefer XMAX OONT's overall feature mix and form factor.
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.
21 differ 4 shared
| Specification | G Pen Roam | XMAX OONT |
|---|---|---|
| Price (USD) | $100 | $50 |
| 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) | 180℃-220℃ (356℉-428℉) |
| Battery Type | Internal | Internal 18500 |
| Battery Capacity | 1300mAh | 1500mAh |
| Battery Life | 15-20 sessions | 12+ sessions |
| Charging | Micro-USB | USB-C |
| Charge Time | ~2 hours | ~2 hours |
| Dimensions | — | 51.14 x 27.40 x 74.5mm |
| Weight | ~317g | — |
| Power Adjustment | Digital Control | 5 Preset Modes |
| Chamber Material | Quartz | Ceramic |
| Concentrate Support | 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 | 2023 |
| Replaceable Battery | — | No |
| Session Style | — | Session |
| Warranty | 1 year | 1 year |
Comparison FAQs
What is the biggest difference between the G Pen Roam and the XMAX OONT?
There's no single headline gap. The differences are spread across 21 smaller spec rows rather than concentrated in one place. The spec table below marks each row that differs.
Which is cheaper, the G Pen Roam or the XMAX OONT?
XMAX OONT is the cheaper option at $50 compared with $100 for the G Pen Roam, about $50 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the G Pen Roam or the XMAX OONT?
G Pen Roam reaches session-ready temperature in ~5 seconds, while the XMAX OONT takes ~20 seconds. That's roughly 15 seconds quicker on the G Pen Roam, which is useful if you want shorter, on-demand sessions.
Can I set custom temperatures on the G Pen Roam or the XMAX OONT?
G Pen Roam controls heat with digital control, while the XMAX OONT uses 5 preset modes. G Pen Roam gives you finer per-degree control.
Which is more discreet, the G Pen Roam or the XMAX OONT?
XMAX OONT is the better pick if low-profile use matters. It's tagged as stealth or pocket-friendly in our database, while the G Pen Roam is more conspicuous in hand and harder to keep out of sight.
What battery life can I expect from the G Pen Roam and the XMAX OONT?
G Pen Roam's spec sheet lists 15-20 sessions; the XMAX OONT lists 12+ 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 OONT?
G Pen Roam covers 204°C - 427°C (400°F - 800°F), a wider band than the XMAX OONT at 180℃-220℃ (356℉-428℉). 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.