Price (USD)
Close callG Pen Connect
$180
Tempest 2
$179
Pricing is very close between both devices.
Vaporizer Comparison
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Connect
Grenco Science $180
Tempest 2
Mad Heaters $179
G Pen Connect and Tempest 2 are both portable vaporizers, but they target different priorities. Their listed prices are close ($180 vs $179). Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
24
Different Specs
22
Shared Specs
2
Overall Overlap
8%
Shared Traits
A quick snapshot of the specs people usually care about first.
G Pen Connect
$180
Tempest 2
$179
Pricing is very close between both devices.
G Pen Connect
Conduction
Tempest 2
Convection-heavy with thermal ball matrix
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
G Pen Connect
$180
Tempest 2
$179
Heating Type
G Pen Connect
Conduction
Tempest 2
Convection-heavy with thermal ball matrix
Temperature Range
G Pen Connect
180°C - 220°C (356°F - 428°F)
Tempest 2
N/A
Battery Type
G Pen Connect
Internal
Tempest 2
None
Battery Capacity
G Pen Connect
850mAh
Tempest 2
N/A
Battery Life
G Pen Connect
10-15 sessions
Tempest 2
N/A
Charging
G Pen Connect
Micro-USB
Tempest 2
N/A
Charge Time
G Pen Connect
~2 hours
Tempest 2
N/A
Dimensions
G Pen Connect
79.1x59x22.4mm
Tempest 2
122mm x 18.5mm
Power Adjustment
G Pen Connect
Digital Control - 3 Stage Modular
Tempest 2
Visual gauge with click indicators
Direct comparison of every spec from each device profile.
| Specification | G Pen Connect | Tempest 2 |
|---|---|---|
| Price (USD) | $180 | $179 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Convection-heavy with thermal ball matrix |
| Heat Up Time | — | ~30-45 seconds with torch |
| Temperature Range | 180°C - 220°C (356°F - 428°F) | N/A |
| Chamber Capacity | — | 0.1g - 0.2g (adjustable) |
| Battery Type | Internal | None |
| Battery Capacity | 850mAh | N/A |
| Battery Life | 10-15 sessions | N/A |
| Charging | Micro-USB | N/A |
| Charge Time | ~2 hours | N/A |
| Dimensions | 79.1x59x22.4mm | 122mm x 18.5mm |
| Weight | — | 46g |
| Power Adjustment | Digital Control - 3 Stage Modular | Visual gauge with click indicators |
| Chamber Material | Ceramic | Titanium |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | Mad Heaters |
| Adjustable Airflow | — | Yes |
| Body Material | — | Grade 5 titanium, aluminum heat shield, stainless steel |
| Country of Manufacture | — | Made in China, Assembled in the UK |
| Haptic Feedback | No | — |
| Heating Element | Ceramic | — |
| Release Date | 2019 | — |
| Warranty | 1 year | 1 year |
The biggest practical difference is heating approach: G Pen Connect runs conduction while Tempest 2 runs convection-heavy with thermal ball matrix. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
G Pen Connect uses conduction heating, while the Tempest 2 uses convection-heavy with thermal ball matrix. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Listed prices are close: $180 for the G Pen Connect versus $179 for the Tempest 2. Day-to-day price will likely come down to whichever retailer is running a promotion.
G Pen Connect controls heat with digital control - 3 stage modular, while the Tempest 2 uses visual gauge with click indicators. G Pen Connect gives you finer per-degree control.
G Pen Connect's spec sheet lists 10-15 sessions; the Tempest 2 lists N/A. The two manufacturers measure battery life differently here, so direct comparison isn't straightforward.
Across the 24 specs we line up, they share 2 and differ on 22, an overlap of about 8%. The differences are concentrated in the areas the spec table highlights with a marker.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.