We purchased and tested the G Pen Dash II hands-on. Prices, availability, and performance data are regularly verified.
VapeExperts Review of the G Pen Dash II
The G Pen Dash II replaces the original G Pen Dash5.4 at the same $49.95 price while fixing nearly every complaint. It adds an OLED display, precise temperature control, a larger 0.4 g ceramic chamber, and USB-C charging. For the sub-$50 bracket, those features were unheard of even a year ago.
The upgrades are real, but the Dash II still uses pure conduction heating in a compact chassis. That means vapor quality trails convection-based competitors that cost only slightly more. We tested it across the full 190-220°C range to find where Grenco's cheapest vaporizer earns its place on our portable rankings.
What's in the Box
Grenco Science keeps packaging minimal. You get the G Pen Dash II vaporizer with a built-in loading tool, plus a silicone mouthpiece sleeve for heat protection during longer sessions.
No USB-C charging cable is included. You supply your own, which most buyers already have.
Aluminum body at 62 g with OLED display
The Dash II measures roughly 97 x 35 x 21 mm and weighs 62 g, the same weight as the original Dash but in a slightly shorter, wider profile. The aluminum body feels solid for the price and fits comfortably in any pocket.
The magnetic mouthpiece detaches cleanly for loading and cleaning. A silicone sleeve wraps the mouthpiece tip for heat insulation during extended sessions. The mouthpiece includes a removable insert with an integrated vapor cooling path, a genuine improvement over the original Dash's uninsulated plastic mouthpiece.
The OLED display on the front shows current temperature and battery level in real time. This alone is a category-defining upgrade at this price. The original Dash relied on 3 color-coded LEDs that told you almost nothing.
Whether you own the G Pen Dash II or are still deciding, your thoughts and questions are welcome here.
Reviewed by
The VapeExperts Editorial Team
Every vaporizer we cover is bought, lived with, and tested by the same small team. We log temperatures with an external thermocouple, run battery cycles to depletion, and spend at least two weeks on a device before we score it. No manufacturer has ever paid for, previewed, or influenced a review on this site.
The 0.4 g ceramic chamber sits recessed inside the body with a wider opening than the original's 0.25 g oven, making loading easier and reducing spillage. A built-in pick tool integrated into the device body handles packing and post-session cleanup.
Build quality is adequate for the price bracket. The 6-month warranty (extendable to 1 year with registration) is shorter than what most competitors offer.
Conduction heating with precise temperature control
The G Pen Dash II uses pure conduction heating through its ceramic chamber walls. It reaches temperature in approximately 30 seconds and vibrates to signal readiness (haptic feedback is togglable in settings).
Temperature spans 190-220°C with degree-by-degree adjustment via dedicated +/- buttons. That 30°C range is narrow compared to convection portables that typically span 100-220°C, but it covers the sweet spot for dry herb cannabinoid extraction. Our temperature guide breaks down what each setting produces.
At lower temperatures around 190°C, vapor stays light with cleaner terpene flavor. The medium range near 205°C delivers the best balance between visible clouds and taste. At the 220°C ceiling, vapor thickens but flavor degrades and the mouthpiece area warms noticeably.
The integrated cooling path in the mouthpiece insert helps more than the original Dash's bare plastic airpath. Vapor still runs warm at higher temperatures during back-to-back sessions, a trade-off inherent to compact conduction vaporizers. Our convection vs conduction guide explains why this heating method behaves differently.
An adjustable session timer defaults to 3 minutes but can be modified through the settings menu. This is a practical addition that the original Dash lacked entirely.
1100 mAh battery delivers 2-4 sessions per charge
The built-in 1100 mAh battery is a 16% increase over the original Dash's 950 mAh. Grenco Science does not publish an official session count, but reviewer testing and community feedback consistently report 2-4 sessions per charge depending on temperature and session length.
Pass-through charging via USB-C means you can vape while plugged in, a feature that effectively eliminates battery anxiety at home or near a power source. This is a genuine quality-of-life upgrade over the original Dash's Micro-USB without pass-through.
The battery remains non-replaceable. Daily users should expect gradual capacity loss over time, consistent with the original Dash's pattern. The small battery is the Dash II's most persistent limitation.
OLED and multi-button interface simplify every session
Loading takes seconds: detach the magnetic mouthpiece, use the built-in pick tool to drop ground cannabis into the 0.4 g ceramic chamber, and snap the mouthpiece back. Our grinding guide covers the right consistency for conduction vaporizers.
Hold the main button for 3 seconds to power on. Use +/- buttons to set your exact temperature on the OLED display. Double-press the main button to begin heating. The optional haptic vibration confirms when the chamber reaches temperature.
Five quick clicks of the power button opens a settings menu where you can adjust session timer duration, toggle haptic feedback, and switch between Fahrenheit and Celsius. The interface is simple enough for first-time vapers while giving experienced users meaningful control.
Cleaning follows the same routine as most pocket portables. Brush the chamber while warm after each session. Remove the mouthpiece insert and clean it with isopropyl alcohol every 5-7 days.
How It Compares
The G Pen Dash II competes in the budget pocket vaporizer segment. Here are two matchups VapeExperts buyers ask about most as of May 2026.
G Pen Dash II vs G Pen Dash (Original)
The G Pen Dash is the predecessor at the same price. The Dash II improves nearly every spec: OLED display (vs 3 LEDs), precise temperature control (vs 3 fixed presets), 0.4 g ceramic chamber (vs 0.25 g glass-glazed stainless steel), 1100 mAh battery (vs 950 mAh), and USB-C with pass-through (vs Micro-USB).
The original Dash has been discontinued. If you see it at a discount, the Dash II is still the better buy at full price.
G Pen Dash II vs XMax V3 Pro
The XMax V3 Pro7.5 costs roughly twice the asking price but uses full convection heating for cleaner, more flavorful vapor. It delivers degree-by-degree control across a wider 100-220°C range, a replaceable 18650 battery, and USB-C charging.
The Dash II wins on pocket size at 62 g versus the V3 Pro's 105 g, and costs half as much. But the V3 Pro's convection heating and replaceable battery make it the stronger long-term investment. For most buyers, the step up pays for itself.
Who Should Buy the G Pen Dash II
Budget-first beginners who want to try dry herb vaping without spending over $50. The Dash II delivers features (OLED, precise temp, USB-C) that normally require double the investment. Our beginner's guide helps you decide if stepping up makes more sense from day one.
Pocket-carry users who need a 62 g vaporizer that disappears into any pocket. The Dash II is among the lightest portables with a real display.
Desktop-hybrid users who plan to use pass-through charging regularly. Plugged into USB-C at a desk, the small battery becomes irrelevant.
Final Verdict
The G Pen Dash II is the best-equipped sub-$50 dry herb vaporizer available as of May 2026. The OLED display, precise temperature control, and USB-C pass-through charging close the gap between the budget tier and mid-range portables. Conduction vapor still lacks the flavor depth of convection alternatives, and the 1100 mAh battery limits untethered sessions. But for buyers who refuse to spend more, the Dash II delivers far more than the price suggests.
