Price (USD)
Close callG Pen Hyer
$150
Ruby Twist
$170
Pricing is very close between both devices.
Vaporizer Comparison
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Hyer
Grenco Science from $249.99
Ruby Twist
SZ Crossing from $199.99
G Pen Hyer and Ruby Twist are both electronic vaporizers, but they target different priorities. Their listed prices are close ($150 vs $170). Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
26
Different Specs
26
Shared Specs
0
Overall Overlap
0%
Shared Traits
A quick snapshot of the specs people usually care about first.
G Pen Hyer
$150
Ruby Twist
$170
Pricing is very close between both devices.
G Pen Hyer
Conduction
Ruby Twist
Convection
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
G Pen Hyer
$150
Ruby Twist
$170
Device Type
G Pen Hyer
Portable
Ruby Twist
Desktop
Heating Type
G Pen Hyer
Conduction
Ruby Twist
Convection
Temperature Range
G Pen Hyer
180°C - 220°C dry herb, 250°C - 450°C concentrate
Ruby Twist
450F - 650F (Recommended Range)
Chamber Capacity
G Pen Hyer
~0.5g
Ruby Twist
0.05g - ~0.4g
Battery Type
G Pen Hyer
External Battery Pack
Ruby Twist
N/A
Charging
G Pen Hyer
USB-C
Ruby Twist
N/A
Power Adjustment
G Pen Hyer
Digital Control - 5 Stage Modular
Ruby Twist
Digital (precise)
Chamber Material
G Pen Hyer
Ceramic (dry herb tank), Quartz (concentrate tank)
Ruby Twist
Glass
Brand
G Pen Hyer
Grenco Science
Ruby Twist
SZ Crossing
Current price
$249.99
at Slick Vapes
Current price
$199.99
at The Stash Shack
Prices are read automatically from retailer pages and were last checked Aug 27, 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 Hyer | Ruby Twist |
|---|---|---|
| Price (USD) | $150 | $170 |
| Device Type | Portable | Desktop |
| Heating Type | Conduction | Convection |
| Temperature Range | 180°C - 220°C dry herb, 250°C - 450°C concentrate | 450F - 650F (Recommended Range) |
| Chamber Capacity | ~0.5g | 0.05g - ~0.4g |
| Battery Type | External Battery Pack | N/A |
| Battery Capacity | 6000mAh | — |
| Charging | USB-C | N/A |
| Charge Time | 2.5 - 3 hours | — |
| Dimensions | — | 72x36x108mm |
| Weight | — | 0.8kg |
| Power Adjustment | Digital Control - 5 Stage Modular | Digital (precise) |
| Chamber Material | Ceramic (dry herb tank), Quartz (concentrate tank) | Glass |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | SZ Crossing |
| Adjustable Airflow | — | Yes |
| Ball Type | — | Gem-cut rubies |
| Body Material | — | Grade 2 Titanium |
| Coil Size | — | 20mm |
| Display Type | LED Light User Interface | — |
| Haptic Feedback | No | — |
| Heating Element | Stainless Steel | — |
| Joint Size | — | 14mm male (14-18mm adapter included) |
| Release Date | 2022 | — |
| Session Style | Session | — |
| Warranty | — | 1 year |
The biggest practical difference is form factor: these aren't the same kind of device. G Pen Hyer is a portable, Ruby Twist is a desktop. Pick based on whether you want something portable or something stationary.
G Pen Hyer uses conduction heating, while the Ruby Twist uses convection. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
G Pen Hyer has the larger chamber at ~0.5g, versus 0.05g - ~0.4g on the Ruby Twist. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
G Pen Hyer is the take-anywhere choice. It's a portable, battery-powered unit, while the Ruby Twist is built for home use, where bigger heaters, AC power, and larger chambers make sense.
Listed prices are close: $150 for the G Pen Hyer versus $170 for the Ruby Twist. Day-to-day price will likely come down to whichever retailer is running a promotion.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.