Price (USD)
Close callFirefly 2+
$250
G Pen Hyer
$250
Pricing is very close between both devices.
Vaporizer Comparison
Firefly 2+ vs G Pen Hyer
Side-by-side specs, pricing context, and clear decision guidance.
Firefly 2+
Firefly Vapor $250
VS
G Pen Hyer
Grenco Science $250
Editorial Summary
Firefly 2+ and G Pen Hyer are both portable / premium vaporizers, but they target different priorities. Their listed prices are close ($250 vs $250). Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
25
Different Specs
23
Shared Specs
2
Overall Overlap
8%
Shared Traits
Portable Premium Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callFirefly 2+
Convection
G Pen Hyer
Conduction
Heating style differs, which can impact flavor and extraction behavior.
Key Differences at a Glance
Top specs where these two devices diverge.
Heating Type
Firefly 2+
Convection
G Pen Hyer
Conduction
Temperature Range
Firefly 2+
93°C - 260°C
G Pen Hyer
180°C - 220°C (356°F - 428°F)
Chamber Capacity
Firefly 2+
~0.15g
G Pen Hyer
~0.5g
Battery Type
Firefly 2+
Removable (proprietary)
G Pen Hyer
External Battery Pack
Battery Capacity
Firefly 2+
770mAh
G Pen Hyer
6000mAh
Charging
Firefly 2+
Proprietary Dock
G Pen Hyer
USB-C
Charge Time
Firefly 2+
~45 minutes
G Pen Hyer
2.5 - 3 hours
Power Adjustment
Firefly 2+
Digital (precise)
G Pen Hyer
Digital Control - 5 Stage Modular
Chamber Material
Firefly 2+
Glass
G Pen Hyer
Ceramic
Brand
Firefly 2+
Firefly Vapor
G Pen Hyer
Grenco Science
Choose Firefly 2+ if...
- You prefer a convection heating profile.
- Your usage leans toward battery swap and convection sessions.
- You prefer Firefly 2+'s overall feature mix and form factor.
Choose G Pen Hyer if...
- You prefer a conduction heating profile.
- Your usage leans toward conduction and concentrates sessions.
- You prefer G Pen Hyer's overall feature mix and form factor.
Spec Comparison Table
Direct comparison of every spec from each device profile.
23 differ 2 shared
| Specification | Firefly 2+ | G Pen Hyer |
|---|---|---|
| Price (USD) | $250 | $250 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Conduction |
| Heat Up Time | ~3 seconds | — |
| Temperature Range | 93°C - 260°C | 180°C - 220°C (356°F - 428°F) |
| Chamber Capacity | ~0.15g | ~0.5g |
| Battery Type | Removable (proprietary) | External Battery Pack |
| Battery Capacity | 770mAh | 6000mAh |
| Battery Life | <90 minutes | — |
| Charging | Proprietary Dock | USB-C |
| Charge Time | ~45 minutes | 2.5 - 3 hours |
| Pass-Through Charging | No | — |
| Dimensions | 129x36x24mm | — |
| Weight | ~140g | — |
| Power Adjustment | Digital (precise) | Digital Control - 5 Stage Modular |
| Chamber Material | Glass | Ceramic |
| Concentrate Support | — | Yes |
| Brand | Firefly Vapor | Grenco Science |
| Chamber Type | Ceramic | — |
| Display Type | — | LED Light User Interface |
| Haptic Feedback | — | No |
| Heating Element | — | Stainless Steel |
| Release Date | 2019 | 2022 |
| Session Style | On-Demand | Session |
| Warranty | 2 years | — |
Comparison FAQs
What is the biggest difference between the Firefly 2+ and the G Pen Hyer?
The biggest practical difference is heating approach: Firefly 2+ runs convection while G Pen Hyer runs conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
What's the difference in heating between the Firefly 2+ and the G Pen Hyer?
Firefly 2+ uses convection heating, while the G Pen Hyer uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Does the Firefly 2+ or the G Pen Hyer hold more flower?
G Pen Hyer has the larger chamber at ~0.5g, versus ~0.15g on the Firefly 2+. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Which is cheaper, the Firefly 2+ or the G Pen Hyer?
Listed prices are close: $250 for the Firefly 2+ versus $250 for the G Pen Hyer. Day-to-day price will likely come down to whichever retailer is running a promotion.
Can I swap the batteries on the Firefly 2+ or the G Pen Hyer?
Firefly 2+ uses removable (proprietary), so you can carry spares for back-to-back days. The G Pen Hyer has a built-in battery you can't swap on the go.
Which charges faster, the Firefly 2+ or the G Pen Hyer?
Firefly 2+ fully charges in ~45 minutes, ahead of 2.5 - 3 hours on the G Pen Hyer.
Which has a wider temperature range, the Firefly 2+ or the G Pen Hyer?
Firefly 2+ covers 93°C - 260°C, a wider band than the G Pen Hyer at 180°C - 220°C (356°F - 428°F). A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.