Price (USD)
Close callG Pen Elite II
$250
Transient Mist Flow Pro
$236
Pricing is very close between both devices.
Vaporizer Comparison
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Elite II
Grenco Science from $180
Transient Mist Flow Pro
Transient Mist $236
G Pen Elite II and Transient Mist Flow Pro are both portable / electronic vaporizers, but they target different priorities. Their listed prices are close ($250 vs $236). Transient Mist Flow Pro has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
29
Different Specs
28
Shared Specs
1
Overall Overlap
3%
Shared Traits
A quick snapshot of the specs people usually care about first.
G Pen Elite II
$250
Transient Mist Flow Pro
$236
Pricing is very close between both devices.
G Pen Elite II
~30 seconds
Transient Mist Flow Pro
3-6 seconds to 200°C, under 2 seconds to reheat
Transient Mist Flow Pro has the quicker listed heat-up profile.
G Pen Elite II
146g
Transient Mist Flow Pro
230g with battery (215g in the manual)
G Pen Elite II is the lighter listed unit.
G Pen Elite II
Hybrid (Primarily Conduction)
Transient Mist Flow Pro
Hybrid
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
G Pen Elite II
$250
Transient Mist Flow Pro
$236
Heating Type
G Pen Elite II
Hybrid (Primarily Conduction)
Transient Mist Flow Pro
Hybrid
Heat Up Time
G Pen Elite II
~30 seconds
Transient Mist Flow Pro
3-6 seconds to 200°C, under 2 seconds to reheat
Temperature Range
G Pen Elite II
93°C - 220°C (200°F - 428°F)
Transient Mist Flow Pro
40-240°C (104-464°F)
Battery Type
G Pen Elite II
Internal
Transient Mist Flow Pro
Removable 18650, rated 10C or higher
Battery Capacity
G Pen Elite II
2100mAh
Transient Mist Flow Pro
3000mAh Molicel P30B (manual lists a 2800mAh P28A)
Charging
G Pen Elite II
USB-C
Transient Mist Flow Pro
USB-C, 5V/2A
Dimensions
G Pen Elite II
117x30x28mm
Transient Mist Flow Pro
105 x 63 x 24mm
Weight
G Pen Elite II
146g
Transient Mist Flow Pro
230g with battery (215g in the manual)
Power Adjustment
G Pen Elite II
Digital Control
Transient Mist Flow Pro
Digital, with an optional 5°C step mode
Lowest price
$180
at Slick Vapes
Typical price
$236
Sold by Transient Mist
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.
Direct comparison of every spec from each device profile.
| Specification | G Pen Elite II | Transient Mist Flow Pro |
|---|---|---|
| Price (USD) | $250 | $236 |
| Device Type | Portable | Portable |
| Heating Type | Hybrid (Primarily Conduction) | Hybrid |
| Heat Up Time | ~30 seconds | 3-6 seconds to 200°C, under 2 seconds to reheat |
| Temperature Range | 93°C - 220°C (200°F - 428°F) | 40-240°C (104-464°F) |
| Chamber Capacity | 0.3 - 0.5 grams | — |
| Battery Type | Internal | Removable 18650, rated 10C or higher |
| Battery Capacity | 2100mAh | 3000mAh Molicel P30B (manual lists a 2800mAh P28A) |
| Battery Life | ~1 hour of use | — |
| Charging | USB-C | USB-C, 5V/2A |
| Charge Time | 90 minutes | — |
| Pass-Through Charging | — | No |
| Dimensions | 117x30x28mm | 105 x 63 x 24mm |
| Weight | 146g | 230g with battery (215g in the manual) |
| Power Adjustment | Digital Control | Digital, with an optional 5°C step mode |
| Chamber Material | Ceramic | Aluminum bowl |
| Brand | Grenco Science | Transient Mist |
| Adjustable Airflow | Yes | — |
| Airpath | — | CNC-machined PEEK, separate from the electronics |
| Body Material | — | PC and PEEK |
| Display Type | High Resolution TFT (LCD) | 0.96-inch colour OLED |
| Dosing Capsules | — | Yes, or loose herb |
| Haptic Feedback | — | Yes |
| Heating Element | — | 0.05mm SUS316L stainless steel foil cylinder |
| Mouthpiece Material | Zirconia | — |
| Release Date | 2022 | October 2026 |
| Session Style | Session | 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 |
The biggest practical difference is heating approach: G Pen Elite II runs hybrid (primarily conduction) while Transient Mist Flow Pro runs hybrid. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Transient Mist Flow Pro reaches session-ready temperature in 3-6 seconds to 200°C, under 2 seconds to reheat, while the G Pen Elite II takes ~30 seconds. That's roughly 26 seconds quicker on the Transient Mist Flow Pro, which is useful if you want shorter, on-demand sessions.
G Pen Elite II uses hybrid (primarily conduction) 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.
G Pen Elite II is the lighter unit at 146g, around 84g 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.
Listed prices are close: $250 for the G Pen Elite II versus $236 for the Transient Mist Flow Pro. Day-to-day price will likely come down to whichever retailer is running a promotion.
Transient Mist Flow Pro uses removable 18650, rated 10c or higher, so you can carry spares for back-to-back days. The G Pen Elite II has a built-in battery you can't swap on the go.
Transient Mist Flow Pro covers 40-240°C (104-464°F), a wider band than the G Pen Elite II at 93°C - 220°C (200°F - 428°F). A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.