Price (USD)
Close callFirefly 2+
$250
G Pen Elite II
$250
Pricing is very close between both devices.
Vaporizer Comparison
Firefly 2+
G Pen Elite II
Side-by-side specs, pricing context, and clear decision guidance.
Firefly 2+ and G Pen Elite II are both portable / premium vaporizers, but they target different priorities. Their listed prices are close ($250 vs $250). Firefly 2+ has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
18
Different Specs
17
Shared Specs
1
Overall Overlap
6%
Shared Traits
A quick snapshot of the specs people usually care about first.
Firefly 2+
$250
G Pen Elite II
$250
Pricing is very close between both devices.
Firefly 2+
~3 seconds
G Pen Elite II
~30 seconds
Firefly 2+ has the quicker listed heat-up profile.
Firefly 2+
—
G Pen Elite II
Hybrid (Primarily Conduction)
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Device Type
Firefly 2+
Portable
G Pen Elite II
—
Heating Type
Firefly 2+
—
G Pen Elite II
Hybrid (Primarily Conduction)
Heat Up Time
Firefly 2+
~3 seconds
G Pen Elite II
~30 seconds
Temperature Range
Firefly 2+
93°C - 260°C
G Pen Elite II
93°C - 220°C (200°F - 428°F)
Chamber Capacity
Firefly 2+
—
G Pen Elite II
0.3 - 0.5 grams
Battery Capacity
Firefly 2+
770mAh
G Pen Elite II
2100mAh
Battery Life
Firefly 2+
<90 minutes
G Pen Elite II
~1 hour of use
Charging
Firefly 2+
—
G Pen Elite II
USB-C
Charge Time
Firefly 2+
~45 minutes
G Pen Elite II
90 minutes
Pass-Through Charging
Firefly 2+
No
G Pen Elite II
—
Direct comparison of every spec from each device profile.
| Specification | Firefly 2+ | G Pen Elite II |
|---|---|---|
| Price (USD) | $250 | $250 |
| Device Type | Portable | — |
| Heating Type | — | Hybrid (Primarily Conduction) |
| Heat Up Time | ~3 seconds | ~30 seconds |
| Temperature Range | 93°C - 260°C | 93°C - 220°C (200°F - 428°F) |
| Chamber Capacity | — | 0.3 - 0.5 grams |
| Battery Capacity | 770mAh | 2100mAh |
| Battery Life | <90 minutes | ~1 hour of use |
| Charging | — | USB-C |
| Charge Time | ~45 minutes | 90 minutes |
| Pass-Through Charging | No | — |
| Dimensions | 129x36x24mm | — |
| Power Adjustment | — | Digital Control |
| Brand | Firefly Vapor | Grenco Science |
| Chamber Material | — | Ceramic |
| Chamber Type | Ceramic | — |
| Display Type | — | High Resolution TFT (LCD) |
| Mouthpiece Material | — | Zirconia |
The biggest practical difference is heat-up speed: the Firefly 2+ is ready in ~3 seconds versus ~30 seconds on the G Pen Elite II, which changes whether it feels on-demand or scheduled.
Firefly 2+ reaches session-ready temperature in ~3 seconds, while the G Pen Elite II takes ~30 seconds. That's roughly 27 seconds quicker on the Firefly 2+, which is useful if you want shorter, on-demand sessions.
Firefly 2+ is rated for <90 minutes, ahead of ~1 hour of use on the G Pen Elite II. Real-world battery life depends on how high you set the temperature and how long sessions run.
Listed prices are close: $250 for the Firefly 2+ versus $250 for the G Pen Elite II. Day-to-day price will likely come down to whichever retailer is running a promotion.
Firefly 2+ fully charges in ~45 minutes, ahead of 90 minutes on the G Pen Elite II.
G Pen Elite II covers 93°C - 220°C (200°F - 428°F), a wider band than the Firefly 2+ at 93°C - 260°C. A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
Firefly 2+ is the better fit for microdosing in our database, typically thanks to a smaller chamber, finer temperature control, or both.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.