G Pen
G Pen by Grenco Science makes some of the most recognizable portable vaporizers in the world — from the sleek Dash to the powerful Roam and Elite. Pocketable, powerful, and design-forward, G Pen devices bring serious performance in a pocket-friendly form. Shop the full G Pen range — genuine units and parts, in stock and shipping fast from the US.
Why G Pen
Pocket-ready portability
Serious vapor in a discreet, design-forward body.
Fast ceramic heating
Quick heat-up and even sessions, every time.
Rechargeable & USB-C
All-day battery with quick top-ups.
Dash, Roam & Elite lineup
A device for every style, from ultra-compact to high-power.
Genuine parts & coils
Authentic mouthpieces, coils and accessories.
Fast US shipping
In-stock G Pen gear ships quick from our US warehouse.
Shop all G Pen · 18 products
Free Shipping
Orders $50+
24h Dispatch
Fast shipping
Discreet
Plain packaging
21+ Verified
Age checked at checkout
How to choose
The G Pen Dash is the everyday pocket pick; the Roam adds water filtration for cool, smooth hits; the Elite delivers full-bowl power. Match the device to how you use it, and keep genuine replacement parts on hand — all below.
G Pen FAQ
- Are these genuine G Pen / Grenco Science products?
- Yes — every G Pen device and accessory we sell is 100% authentic and backed by the manufacturer.
- Which G Pen is best for portability?
- The G Pen Dash is the most compact and pocket-friendly; the Roam and Elite are larger with more power and features.
- Do you carry G Pen replacement parts?
- Yes — we stock genuine G Pen coils, mouthpieces and accessories.
- How fast does G Pen gear ship?
- In-stock G Pen products ship fast from our US warehouse.