Price (USD)
Close callFirefly 2+
$250
Transient Mist Flow Pro
$236
Pricing is very close between both devices.
Vaporizer Comparison
Firefly 2+ vs Transient Mist Flow Pro
Side-by-side specs, pricing context, and clear decision guidance.
Firefly 2+
Firefly Vapor $250
VS
Transient Mist Flow Pro
Transient Mist $236
Editorial Summary
Firefly 2+ and Transient Mist Flow Pro are both portable / battery swap vaporizers, but they target different priorities. Their listed prices are close ($250 vs $236). Heat-up speed is broadly similar between the two.
Specs Compared
28
Different Specs
26
Shared Specs
2
Overall Overlap
7%
Shared Traits
Portable Battery Swap Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
Close callFirefly 2+
~3 seconds
Transient Mist Flow Pro
3-6 seconds to 200°C, under 2 seconds to reheat
Both devices are in a similar heat-up range.
Weight
Firefly 2+ edgeFirefly 2+
~140g
Transient Mist Flow Pro
230g with battery (215g in the manual)
Firefly 2+ is the lighter listed unit.
Heating Style
Close callFirefly 2+
Convection
Transient Mist Flow Pro
Hybrid
Heating style differs, which can impact flavor and extraction behavior.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Firefly 2+
$250
Transient Mist Flow Pro
$236
Heating Type
Firefly 2+
Convection
Transient Mist Flow Pro
Hybrid
Heat Up Time
Firefly 2+
~3 seconds
Transient Mist Flow Pro
3-6 seconds to 200°C, under 2 seconds to reheat
Temperature Range
Firefly 2+
93°C - 260°C
Transient Mist Flow Pro
40-240°C (104-464°F)
Battery Type
Firefly 2+
Removable (proprietary)
Transient Mist Flow Pro
Removable 18650, rated 10C or higher
Battery Capacity
Firefly 2+
770mAh
Transient Mist Flow Pro
3000mAh Molicel P30B (manual lists a 2800mAh P28A)
Charging
Firefly 2+
Proprietary Dock
Transient Mist Flow Pro
USB-C, 5V/2A
Dimensions
Firefly 2+
129x36x24mm
Transient Mist Flow Pro
105 x 63 x 24mm
Weight
Firefly 2+
~140g
Transient Mist Flow Pro
230g with battery (215g in the manual)
Power Adjustment
Firefly 2+
Digital (precise)
Transient Mist Flow Pro
Digital, with an optional 5°C step mode
Choose Firefly 2+ if...
- You want the lighter unit for carrying and travel.
- You prefer a convection heating profile.
- Your usage leans toward premium and convection sessions.
Typical price
$250
Prices vary by store
Choose Transient Mist Flow Pro if...
- You prefer a hybrid heating profile.
- Your usage leans toward hybrid sessions.
- You prefer Transient Mist Flow Pro's overall feature mix and form factor.
Typical price
$236
Sold by Transient Mist
No discount code
Prices are read automatically from retailer pages and were last checked Oct 2, 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.
26 differ 2 shared
| Specification | Firefly 2+ | Transient Mist Flow Pro |
|---|---|---|
| Price (USD) | $250 | $236 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Hybrid |
| Heat Up Time | ~3 seconds | 3-6 seconds to 200°C, under 2 seconds to reheat |
| Temperature Range | 93°C - 260°C | 40-240°C (104-464°F) |
| Chamber Capacity | ~0.15g | — |
| Battery Type | Removable (proprietary) | Removable 18650, rated 10C or higher |
| Battery Capacity | 770mAh | 3000mAh Molicel P30B (manual lists a 2800mAh P28A) |
| Battery Life | <90 minutes | — |
| Charging | Proprietary Dock | USB-C, 5V/2A |
| Charge Time | ~45 minutes | — |
| Pass-Through Charging | No | No |
| Dimensions | 129x36x24mm | 105 x 63 x 24mm |
| Weight | ~140g | 230g with battery (215g in the manual) |
| Power Adjustment | Digital (precise) | Digital, with an optional 5°C step mode |
| Chamber Material | Glass | Aluminum bowl |
| Brand | Firefly Vapor | Transient Mist |
| Airpath | — | CNC-machined PEEK, separate from the electronics |
| Body Material | — | PC and PEEK |
| Chamber Type | Ceramic | — |
| Display Type | — | 0.96-inch colour OLED |
| Dosing Capsules | — | Yes, or loose herb |
| Haptic Feedback | — | Yes |
| Heating Element | — | 0.05mm SUS316L stainless steel foil cylinder |
| Release Date | 2019 | October 2026 |
| Session Style | On-Demand | Session (up to 220°C, 100-500 second timer) and on-demand |
| Warranty | 2 years | 2-year limited |
| Water Pipe Adapter | — | 14mm and 18mm included |
Comparison FAQs
What is the biggest difference between the Firefly 2+ and the Transient Mist Flow Pro?
The biggest practical difference is heating approach: Firefly 2+ runs convection while Transient Mist Flow Pro runs hybrid. 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 Transient Mist Flow Pro?
Firefly 2+ uses convection heating, while the Transient Mist Flow Pro uses hybrid. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Which is lighter, the Firefly 2+ or the Transient Mist Flow Pro?
Firefly 2+ is the lighter unit at ~140g, around 90g less than the Transient Mist Flow Pro at 230g with battery (215g in the manual). The lighter device is easier to carry and pocket day-to-day.
Which is cheaper, the Firefly 2+ or the Transient Mist Flow Pro?
Listed prices are close: $250 for the Firefly 2+ versus $236 for the Transient Mist Flow Pro. Day-to-day price will likely come down to whichever retailer is running a promotion.
Which heats up faster, the Firefly 2+ or the Transient Mist Flow Pro?
Heat-up times are very close: ~3 seconds on the Firefly 2+ and 3-6 seconds to 200°C, under 2 seconds to reheat on the Transient Mist Flow Pro. The real-world difference will be hard to notice mid-session.
Which has a wider temperature range, the Firefly 2+ or the Transient Mist Flow Pro?
Transient Mist Flow Pro covers 40-240°C (104-464°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.
Is the Firefly 2+ or the Transient Mist Flow Pro better for microdosing?
Firefly 2+ is the better fit for microdosing in our database, typically thanks to a smaller chamber, finer temperature control, or both.
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