Price (USD)
Close callG Pen Pro
$90
XMAX Starry 4
$99
Pricing is very close between both devices.
Vaporizer Comparison
G Pen Pro vs XMAX Starry 4
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
VS
XMAX Starry 4
XMAX $99
Editorial Summary
G Pen Pro and XMAX Starry 4 are both portable / budget vaporizers, but they target different priorities. Their listed prices are close ($90 vs $99). XMAX Starry 4 has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
26
Different Specs
22
Shared Specs
4
Overall Overlap
15%
Shared Traits
Portable Budget Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
XMAX Starry 4 edgeG Pen Pro
~30 seconds
XMAX Starry 4
~15 seconds
XMAX Starry 4 has the quicker listed heat-up profile.
Heating Style
Close callG Pen Pro
Convection
XMAX Starry 4
Conduction
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 Pro
$90
XMAX Starry 4
$99
Heating Type
G Pen Pro
Convection
XMAX Starry 4
Conduction
Heat Up Time
G Pen Pro
~30 seconds
XMAX Starry 4
~15 seconds
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
XMAX Starry 4
100℃-240℃ (212℉-464℉)
Chamber Capacity
G Pen Pro
~0.25 grams
XMAX Starry 4
0.4g
Battery Type
G Pen Pro
Internal
XMAX Starry 4
18650
Battery Capacity
G Pen Pro
2200mAh
XMAX Starry 4
2550mAh
Charging
G Pen Pro
Micro-USB
XMAX Starry 4
USB-C
Charge Time
G Pen Pro
<3 hours
XMAX Starry 4
~90 minutes
Power Adjustment
G Pen Pro
Modular - 3 Stages
XMAX Starry 4
Digital (precise)
Choose G Pen Pro if...
- You prefer a convection heating profile.
- Your usage leans toward convection sessions.
- You prefer G Pen Pro's overall feature mix and form factor.
Choose XMAX Starry 4 if...
- You care about faster heat-up time for quicker sessions.
- You prefer a conduction heating profile.
- Your usage leans toward conduction and battery swap sessions.
Spec Comparison Table
Direct comparison of every spec from each device profile.
22 differ 4 shared
| Specification | G Pen Pro | XMAX Starry 4 |
|---|---|---|
| Price (USD) | $90 | $99 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Conduction |
| Heat Up Time | ~30 seconds | ~15 seconds |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 100℃-240℃ (212℉-464℉) |
| Chamber Capacity | ~0.25 grams | 0.4g |
| Battery Type | Internal | 18650 |
| Battery Capacity | 2200mAh | 2550mAh |
| Battery Life | — | ~60 minutes |
| Charging | Micro-USB | USB-C |
| Charge Time | <3 hours | ~90 minutes |
| Pass-Through Charging | — | Yes |
| Dimensions | — | 115.9 x 37.5 x 24mm |
| Weight | — | ~137g |
| Power Adjustment | Modular - 3 Stages | Digital (precise) |
| Chamber Material | Ceramic | Ceramic |
| Brand | Grenco Science | XMAX |
| Adjustable Airflow | — | Yes |
| Country of Manufacture | — | China |
| Display Type | — | OLED |
| Haptic Feedback | — | Yes |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2017 | 2023 |
| Replaceable Battery | — | Yes |
| Session Style | Session | Session |
| Warranty | 1 year | 1 year |
Comparison FAQs
What is the biggest difference between the G Pen Pro and the XMAX Starry 4?
The biggest practical difference is heating approach: G Pen Pro runs convection while XMAX Starry 4 runs conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Which heats up faster, the G Pen Pro or the XMAX Starry 4?
XMAX Starry 4 reaches session-ready temperature in ~15 seconds, while the G Pen Pro takes ~30 seconds. That's roughly 15 seconds quicker on the XMAX Starry 4, which is useful if you want shorter, on-demand sessions.
What's the difference in heating between the G Pen Pro and the XMAX Starry 4?
G Pen Pro uses convection heating, while the XMAX Starry 4 uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Does the G Pen Pro or the XMAX Starry 4 hold more flower?
XMAX Starry 4 has the larger chamber at 0.4g, versus ~0.25 grams on the G Pen Pro. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Which is cheaper, the G Pen Pro or the XMAX Starry 4?
Listed prices are close: $90 for the G Pen Pro versus $99 for the XMAX Starry 4. Day-to-day price will likely come down to whichever retailer is running a promotion.
Can I swap the batteries on the G Pen Pro or the XMAX Starry 4?
XMAX Starry 4 uses 18650, 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 Starry 4?
G Pen Pro controls heat with modular - 3 stages, while the XMAX Starry 4 uses digital (precise). XMAX Starry 4 gives you finer per-degree control.
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