Price (USD)
G Pen Pro edgeG Pen Pro
$90
XMAX V4 Pro
$120
G Pen Pro is typically around $30 lower.
Vaporizer Comparison
G Pen Pro vs XMAX V4 Pro
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
XMAX V4 Pro
XMAX $120
Editorial Summary
G Pen Pro and XMAX V4 Pro are both portable / budget vaporizers, but they target different priorities. G Pen Pro is usually the lower-cost pick at $90, around $30 below XMAX V4 Pro. XMAX V4 Pro has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
25
Different Specs
22
Shared Specs
3
Overall Overlap
12%
Shared Traits
Portable Budget Convection Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
XMAX V4 Pro edgeG Pen Pro
~30 seconds
XMAX V4 Pro
10-20 seconds
XMAX V4 Pro has the quicker listed heat-up profile.
Heating Style
Close callG Pen Pro
Convection
XMAX V4 Pro
Convection
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
G Pen Pro
$90
XMAX V4 Pro
$120
Heat Up Time
G Pen Pro
~30 seconds
XMAX V4 Pro
10-20 seconds
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
XMAX V4 Pro
100 - 220C (212 - 428F)
Chamber Capacity
G Pen Pro
~0.25 grams
XMAX V4 Pro
0.1g - 0.15g
Battery Type
G Pen Pro
Internal
XMAX V4 Pro
18650 (user replaceable)
Battery Capacity
G Pen Pro
2200mAh
XMAX V4 Pro
2550mAh
Charging
G Pen Pro
Micro-USB
XMAX V4 Pro
USB-C (side mounted)
Charge Time
G Pen Pro
<3 hours
XMAX V4 Pro
~3 hours at 5V/1A
Power Adjustment
G Pen Pro
Modular - 3 Stages
XMAX V4 Pro
Digital (precise, 1 degree steps)
Chamber Material
G Pen Pro
Ceramic
XMAX V4 Pro
Stainless steel
Choose G Pen Pro if...
- You want the lower listed entry price ($90 vs $120).
- You prefer G Pen Pro's overall feature mix and form factor.
- You value how the G Pen Pro balances size, controls, and everyday practicality.
Choose XMAX V4 Pro if...
- You care about faster heat-up time for quicker sessions.
- Your usage leans toward battery swap sessions.
- You prefer XMAX V4 Pro's overall feature mix and form factor.
Typical price
$120
Sold by VPM
Prices are read automatically from retailer pages; 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.
22 differ 3 shared
| Specification | G Pen Pro | XMAX V4 Pro |
|---|---|---|
| Price (USD) | $90 | $120 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Convection |
| Heat Up Time | ~30 seconds | 10-20 seconds |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 100 - 220C (212 - 428F) |
| Chamber Capacity | ~0.25 grams | 0.1g - 0.15g |
| Battery Type | Internal | 18650 (user replaceable) |
| Battery Capacity | 2200mAh | 2550mAh |
| Battery Life | — | 6-8 sessions (XMAX claims up to 12) |
| Charging | Micro-USB | USB-C (side mounted) |
| Charge Time | <3 hours | ~3 hours at 5V/1A |
| Dimensions | — | 158 x 27 x 24mm |
| Weight | — | ~105 grams |
| Power Adjustment | Modular - 3 Stages | Digital (precise, 1 degree steps) |
| Chamber Material | Ceramic | Stainless steel |
| Brand | Grenco Science | XMAX |
| Adjustable Airflow | — | Yes (3 positions) |
| Country of Manufacture | — | China |
| Display Type | — | Colour OLED (flippable) |
| Haptic Feedback | — | Yes |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2017 | 2026 |
| Session Style | Session | Both |
| Warranty | 1 year | 1 year |
| Water Pipe Adapter | — | Built into glass mouthpiece (14mm / 18mm) |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the XMAX V4 Pro?
There's no single headline gap. The differences are spread across 22 smaller spec rows rather than concentrated in one place. The spec table below marks each row that differs.
Which is cheaper, the G Pen Pro or the XMAX V4 Pro?
G Pen Pro is the cheaper option at $90 compared with $120 for the XMAX V4 Pro, about $30 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the G Pen Pro or the XMAX V4 Pro?
XMAX V4 Pro reaches session-ready temperature in 10-20 seconds, while the G Pen Pro takes ~30 seconds. That's roughly 15 seconds quicker on the XMAX V4 Pro, which is useful if you want shorter, on-demand sessions.
Does the G Pen Pro or the XMAX V4 Pro hold more flower?
G Pen Pro has the larger chamber at ~0.25 grams, versus 0.1g - 0.15g on the XMAX V4 Pro. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Can I swap the batteries on the G Pen Pro or the XMAX V4 Pro?
XMAX V4 Pro uses 18650 (user replaceable), so you can carry spares for back-to-back days. The G Pen Pro has a built-in battery you can't swap on the go.
Can I set custom temperatures on the G Pen Pro or the XMAX V4 Pro?
G Pen Pro controls heat with modular - 3 stages, while the XMAX V4 Pro uses digital (precise, 1 degree steps). XMAX V4 Pro gives you finer per-degree control.
Which has a wider temperature range, the G Pen Pro or the XMAX V4 Pro?
XMAX V4 Pro covers 100 - 220C (212 - 428F), 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.
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