Price (USD)
XMAX V3 Nano edgeG Pen Roam
$100
XMAX V3 Nano
$50
XMAX V3 Nano is typically around $50 lower.
Vaporizer Comparison
G Pen Roam vs XMAX V3 Nano
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science from $49.95
VS
XMAX V3 Nano
XMAX from $49.95
Editorial Summary
G Pen Roam and XMAX V3 Nano are both portable / electronic vaporizers, but they target different priorities. XMAX V3 Nano 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
28
Different Specs
25
Shared Specs
3
Overall Overlap
11%
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 V3 Nano
30 seconds
G Pen Roam has the quicker listed heat-up profile.
Weight
XMAX V3 Nano edgeG Pen Roam
~317g
XMAX V3 Nano
50g
XMAX V3 Nano is the lighter listed unit.
Heating Style
Close callG Pen Roam
Conduction
XMAX V3 Nano
Hybrid (primarily convection)
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 Roam
$100
XMAX V3 Nano
$50
Heating Type
G Pen Roam
Conduction
XMAX V3 Nano
Hybrid (primarily convection)
Heat Up Time
G Pen Roam
~5 seconds
XMAX V3 Nano
30 seconds
Temperature Range
G Pen Roam
204°C - 427°C (400°F - 800°F)
XMAX V3 Nano
200 - 220C (single temp setting)
Battery Type
G Pen Roam
Internal
XMAX V3 Nano
Internal (non-swappable)
Battery Capacity
G Pen Roam
1300mAh
XMAX V3 Nano
1000mAh
Battery Life
G Pen Roam
15-20 sessions
XMAX V3 Nano
5-6 sessions
Charging
G Pen Roam
Micro-USB
XMAX V3 Nano
USB-C
Charge Time
G Pen Roam
~2 hours
XMAX V3 Nano
~1 hour
Weight
G Pen Roam
~317g
XMAX V3 Nano
50g
Choose G Pen Roam if...
- You care about faster heat-up time for quicker sessions.
- You prefer a conduction heating profile.
- Your usage leans toward concentrates sessions.
Lowest price
$49.95
at G Pen
Choose XMAX V3 Nano if...
- You want the lower listed entry price ($50 vs $100).
- You want the lighter unit for carrying and travel.
- You prefer a hybrid (primarily convection) heating profile.
- Your usage leans toward convection and budget sessions.
Lowest price
$49.95
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.
25 differ 3 shared
| Specification | G Pen Roam | XMAX V3 Nano |
|---|---|---|
| Price (USD) | $100 | $50 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Hybrid (primarily convection) |
| Heat Up Time | ~5 seconds | 30 seconds |
| Temperature Range | 204°C - 427°C (400°F - 800°F) | 200 - 220C (single temp setting) |
| Chamber Capacity | — | ~0.1g |
| Battery Type | Internal | Internal (non-swappable) |
| Battery Capacity | 1300mAh | 1000mAh |
| Battery Life | 15-20 sessions | 5-6 sessions |
| Charging | Micro-USB | USB-C |
| Charge Time | ~2 hours | ~1 hour |
| Width | — | 2cm |
| Height | — | 13.5cm |
| Weight | ~317g | 50g |
| Power Adjustment | Digital Control | None (fixed preset) |
| Chamber Material | Quartz | Stainless steel |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | XMAX |
| Adjustable Airflow | No | — |
| Country of Manufacture | — | China |
| Display Type | LED | None |
| Haptic Feedback | Yes | Yes |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2020 | 2023 |
| Session Style | — | Session |
| Session Timer | — | 3 minutes |
| Thickness | — | 2cm |
| Warranty | 1 year | 1 year |
Comparison FAQs
What is the biggest difference between the G Pen Roam and the XMAX V3 Nano?
The biggest practical difference is heating approach: G Pen Roam runs conduction while XMAX V3 Nano runs hybrid (primarily convection). That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Which is cheaper, the G Pen Roam or the XMAX V3 Nano?
XMAX V3 Nano 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 V3 Nano?
G Pen Roam reaches session-ready temperature in ~5 seconds, while the XMAX V3 Nano takes 30 seconds. That's roughly 25 seconds quicker on the G Pen Roam, which is useful if you want shorter, on-demand sessions.
What's the difference in heating between the G Pen Roam and the XMAX V3 Nano?
G Pen Roam uses conduction heating, while the XMAX V3 Nano uses hybrid (primarily convection). Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Which is lighter, the G Pen Roam or the XMAX V3 Nano?
XMAX V3 Nano is the lighter unit at 50g, around 267g less than the G Pen Roam at ~317g. The lighter device is easier to carry and pocket day-to-day.
Can I set custom temperatures on the G Pen Roam or the XMAX V3 Nano?
G Pen Roam controls heat with digital control, while the XMAX V3 Nano uses none (fixed preset). G Pen Roam gives you finer per-degree control.
Which charges faster, the G Pen Roam or the XMAX V3 Nano?
XMAX V3 Nano fully charges in ~1 hour, ahead of ~2 hours on the G Pen Roam.
Need a different matchup?
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