Price (USD)
XMAX Ace edgeG Pen Roam
$200
XMAX Ace
$110
XMAX Ace is typically around $90 lower.
Vaporizer Comparison
G Pen Roam vs XMAX Ace
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science $200
VS
XMAX Ace
XMAX $110
Editorial Summary
G Pen Roam and XMAX Ace are both portable / electronic vaporizers, but they target different priorities. XMAX Ace is usually the lower-cost pick at $110, around $90 below G Pen Roam. G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
26
Different Specs
21
Shared Specs
5
Overall Overlap
19%
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 Ace
~20 seconds
G Pen Roam has the quicker listed heat-up profile.
Heating Style
Close callG Pen Roam
Conduction
XMAX Ace
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
$200
XMAX Ace
$110
Heat Up Time
G Pen Roam
~5 seconds
XMAX Ace
~20 seconds
Temperature Range
G Pen Roam
204°C - 427°C (400°F - 800°F)
XMAX Ace
100°C - 255°C
Battery Type
G Pen Roam
Internal
XMAX Ace
18650
Battery Capacity
G Pen Roam
1300mAh
XMAX Ace
2600mAh
Battery Life
G Pen Roam
15-20 sessions
XMAX Ace
<10 sessions
Power Adjustment
G Pen Roam
Digital Control
XMAX Ace
Digital (precise)
Chamber Material
G Pen Roam
Quartz
XMAX Ace
Ceramic
Brand
G Pen Roam
Grenco Science
XMAX Ace
XMAX
Display Type
G Pen Roam
LED
XMAX Ace
OLED
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.
Choose XMAX Ace if...
- You want the lower listed entry price ($110 vs $200).
- Your usage leans toward conduction and budget sessions.
- You prefer XMAX Ace's overall feature mix and form factor.
Spec Comparison Table
Direct comparison of every spec from each device profile.
21 differ 5 shared
| Specification | G Pen Roam | XMAX Ace |
|---|---|---|
| Price (USD) | $200 | $110 |
| 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) | 100°C - 255°C |
| Chamber Capacity | — | 0.2-0.3g |
| Battery Type | Internal | 18650 |
| Battery Capacity | 1300mAh | 2600mAh |
| Battery Life | 15-20 sessions | <10 sessions |
| Charging | Micro-USB | Micro USB |
| Charge Time | ~2 hours | — |
| Dimensions | 178x127x102mm | — |
| Weight | ~317g | — |
| Power Adjustment | Digital Control | Digital (precise) |
| Chamber Material | Quartz | Ceramic |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | XMAX |
| Adjustable Airflow | No | — |
| Country of Manufacture | — | China |
| Display Type | LED | OLED |
| Haptic Feedback | Yes | Yes |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2020 | — |
| Replaceable Battery | — | Yes |
| Session Style | — | Session |
| Warranty | 1 year | 1 year |
Comparison FAQs
What is the biggest difference between the G Pen Roam and the XMAX Ace?
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 Ace?
XMAX Ace is the cheaper option at $110 compared with $200 for the G Pen Roam, about $90 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the G Pen Roam or the XMAX Ace?
G Pen Roam reaches session-ready temperature in ~5 seconds, while the XMAX Ace 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 swap the batteries on the G Pen Roam or the XMAX Ace?
XMAX Ace uses 18650, so you can carry spares for back-to-back days. The G Pen Roam has a built-in battery you can't swap on the go.
What battery life can I expect from the G Pen Roam and the XMAX Ace?
G Pen Roam's spec sheet lists 15-20 sessions; the XMAX Ace lists <10 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 Ace?
G Pen Roam covers 204°C - 427°C (400°F - 800°F), a wider band than the XMAX Ace at 100°C - 255°C. A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
How similar are the G Pen Roam and the XMAX Ace?
Across the 26 specs we line up, they share 5 and differ on 21, an overlap of about 19%. The differences are concentrated in the areas the spec table highlights with a marker.
Need a different matchup?
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