G Pen Herbal Vaporizer Review – Pen Style Smoke?
Build Quality80%
Vapor Quality70%
Look & Feel75%
75%Overall Score

The G Pen Herbal was the first vaporizer offered by Grenco that was intended specifically for dried material, and there’s even a version that was designed by Snoop Dogg. This vape has an attractive, sleek, all-black design and a stainless steel exterior, so many people are intrigued by it for use as an introductory vaporizer. Grenco has since released a new unit, the G-Pen Elite, which is a big step up in terms of vapor and manufacturing quality, be sure to check our review out here.

Our experience suggests that if you are considering this vape, you may want to slow down a minute and take a look at your other options. Despite being marketed as an herbal vaporizer, we found that it was actually pretty bad at vaporizing. The way the heating element and chamber are designed means your material can very easily overheat and combust, something most people are actively trying to avoid when switching to a vaporizer. Keep on reading for a full look at what this vaporizer can and can’t do…

Product Pros

  • Stainless steel exterior
  • Easy to use
  • Attractive design
  • Budget friendly ( under $100 ) – to start!

Product Cons

  • Combusts material – causes smoke!
  • Requires replacement tanks every 6-8 weeks ( at $30 a pop )

G-Pen Herbal Vaporizer Review: Breakdown


Build Quality

Build Quality

There’s a lot to like about how the exterior of this vaporizer is designed. The vape looks well made, and the stainless steel encasement is a refreshing alternative to plastic. Unfortunately, the interior is more important in regards to performance, and this unit has some flaws that prevent it from functioning well. The main problem is that any material close to or on the heating coil will inevitably begin to combust after the first couple of draws.

Another point worth mentioning is the fact that the tanks will need replaced every 6-8 weeks. While this is pretty common, it is still an additional hassle that many new vaporizers are managing to avoid through permanent heating chambers that do not function with a disposable coil design.


Vapor Quality

Given the combustion issues just mentioned above, vapor quality is poor. It’s difficult to rate vapor when it isn’t even true vapor. As soon as the herb combusts, you lose many of the benefits that a vaporizer offers, including those relating to health and efficiency. You’ll find that the ‘vapor’ this puts out will be significantly more harsh than alternatives, as you’ll be inhaling a mix of both vapor and smoke. If you are at all interested in achieving the high quality and flavorful vapor that many vaporizers are capable of, you’ll need to look at other portable vaporizers.


G Pen parts


Look and Feel

The G Pen Herbal does score well in the looks department. The design is nice, and the stainless steel exterior means it feels solid while you’re holding it. The standard unit is all black, but the Snoop Dogg version has a map of the streets of Long Beach printed on the outside. While the Snoop Dogg design is unique to the G Pen line, the overall look and size of the G Pen Herbal can be found in other vaporizers as well. One worth checking out is the ZEUS Thunder, a 3-in-1 vaporizer that has a similar pen-style construction but is actually made with a PVD exterior which is far better quality.



The appearance of the G Pen will help it blend in with other pen vapes regardless of what your intended use is, but the fact that the herbal version will combust any material you choose to use in it means that there will be significantly more odor than you would normally expect from a true vaporizer. If you try to use this in public, people around you may catch a whiff of whatever you’re vaping that day. If this sounds less than ideal for your purposes, you’d be better off with a different device.


Ease of Use

With no settings or adjustments to make, this vape is about as easy to use as they come. The Herbal loads by removing the mouthpiece and then placing your material inside the glass chamber sleeve below. Once you replace the mouthpiece, there is just 1-button that controls both the power and heating coil engagement. 5 clicks will turn the unit on or off, while holding the button engages the heat.



Pen vapes are always very portable, and the G Pen is no exception. The size and design means that it can easily be carried in a bag, and the 900 mAh battery will last for around 2 hours of continuous use. The stainless steel encasement also means that this vape is fairly durable, but be careful with the glass chamber sleeve which can shatter.

Compatible with ZEUS Iceborn
This vaporizer is compatible with the ZEUS Iceborn, a revolutionary new vapor cooling system engineered by Canadian vape manufacturer ZEUSArsenal. The Iceborn is designed to produce cooler draws and bigger clouds when connected to your vaporizer. The vapour produced is ultra smooth and crisp and because of ice cooling, instead of water filtration, there is no loss of efficiency. The ZEUS Iceborn adds an additional 2 points to the vapor quality score of this vaporizer and is a highly recommended vaporizer accessory.


The G Pen Herbal leaves a lot to be desired as far as vaporizers go. While the traditional G Pens work well for their intended purposes, the Herbal version falls short of expectations. Any vaporizer should be able to deliver true vapor and avoid combustion of your material, but you won’t be able to regularly achieve that with this one.

If you appreciate the Grenco brand and were hoping to get a G Pen that can vape your herbs, then you’ll be happy to know that they have a newly released option called the G Pen Elite. The Elite delivers where the Herbal does not, offering great vapor with every draw and a digital display with complete control over the temperature. If the G Pen Elite interests you, you can check it out from our favourite vaporizer store, which also offers free shipping on orders over $100!

Many people do use and enjoy the G Pen Herbal, but we recommend opting for one that will deliver better results. Even if your budget is a concern, better vapes can be found for similar prices.

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About The Author

Senior Content Specialist

Dan is a writer with a massive vaporizer collection who loves video games, superhero movies, finding new music, comic and regular books and critically deconstructing those things until he wonders why he liked them in the first place. He's also a pragmatic fitness enthusiast who believes that the best actions you can take in your daily life are those that help you reach your goals, and that naps are the most lofty, but also the most noble goal one can have.

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