grenco g pro vaporizer review

G Pro Vaporizer

What’s not to love with the G Pro? It heats quickly, operates on a rechargeable lithium-ion battery and has three temperature zones. Furthermore, it automatically shuts off when not in use. Vaping has never been so uncomplicated with this small but mighty vaporizer.


Grenco Science is known for its reputation in the vaporizer world for producing efficient devices. Trusted by vaporizing connoisseurs all over the world and by Snoop Dogg, Grenco Science present the G Pro vaporizer to make every vaping enthusiasts’ life easier. Simply put it in your pocket or bag, and you’re good to go.

Use it with ease
The G Pro features a one-button operation which makes it a simple on-the-go vaporizer. Loading herbs to its deep chamber is very easy. Its three variable temperature settings will make your vaping experience as precise as it can be.

Sophistication at its best
This vaporizer has a stainless steel heating chamber which combines durability and portability in one sophisticated device. It measures 5.50 inches x 0.87 inches x 0.87 inches so you can quickly put it in your pocket anywhere you go.

Works like a pro
The G Pro is an easy-to-use pocket vaporizer that works with finely ground dried herbs. Running low on battery? Plug it in, and the LED indicator will notify you that it is fully charged again. Its temperature can also be adjusted to low, medium, and high to suit your preference.

Cleans in a snap
You can clean this dried herb pocket vaporizer easily with a brush between each use; or also with a cotton swab dipped in isopropyl alcohol. Make sure that the chamber is completely dry before loading.

How to use the G Pro vaporizer

  1. Plug it into an electrical outlet. It becomes fully charged when the LED indicator turns green.
  2. Press either side of the mouthpiece to remove it from the body.
  3. Load the chamber with finely ground herbal blends.
  4. Reattach the mouthpiece to the device.
  5. Turn the power on by pressing the power button five times.
  6. Hold it down to adjust the temperature. Red means low, green means medium, and blue means high.
  7. When the LED indicator turns green, it is ready to use.

G Pro Vaporizer video

The G Pro Vaporizer is an easy-to-use vaporizer that never fails to leave its users satisfied. Watch this short video to see why it’s a crowd favorite.

What’s in the box?

  • 1x G Pro Vaporizer
  • 1x Mouthpiece
  • 1x Cleaning brush
  • 1x Wired USB charger
  • 1x Grinder
  • 2x Long mouthpiece covers
  • 3x Short mouthpiece covers
  • 5x Filter screens


Easy loading and great vapor, the G Pro is a pure herbal vaporizer that didn’t ask for much. It conveniently utilizes a micro-USB charging method and features a safety lock power button to avoid accidental turn on or offs. It has an auto shut-off feature, so you can be sure that your battery life is not wasted if you forget to turn it off. With its 1-year warranty, you can never go wrong with the G Pro.

Deals & Sales

Free shipping on all orders within the USA

Free shipping on orders over $49.99 within the USA

What’s not to love with the G Pro? It heats quickly, operates on a rechargeable lithium-ion battery and has three temperature zones. Furthermore, it automatically shuts off when not in use. Vaping has never been so uncomplicated with this small but mighty vaporizer.

G Pen PRO Review

Kit & Accessories

  • G Pen Pro
  • Cleaning brush + packing tool
  • USB charging cable
  • Grinder card

Compatibility: The G Pen Pro is only compatible with dry herb.

Official Accessories

You can get replacements for the mouthpiece, grinder card, and the charging cable at the G Pen website. However the grinder card is not the best way to grind herb, so you would be better off using a quality herb grinder like the SLX, which you can get from Vape-Smart.

It’s also unnecessary to buy a replacement cable from them since you can buy one anywhere. Whatever you decide to buy from their website, don’t forget to use the G Pen coupon code when you do.

Design & Features

General Design: The Pro has a very sleek, discreet design that looks good, but also won’t attract too much attention, which is a pretty nice trick. It has a smooth, slim design without any bumps or protuberances since the power button sits flush against the body of the vape. That means it fits nicely in your hand and easily slips into your pocket.

It has the understated grey color that you see in all of G Pen’s vapes, and it manages to look good without being too noticeable. My only issue is that the flat mouthpiece with the small slit isn’t my favorite type of mouthpiece because it always feels awkward. It does help with portability and concealability though, so I can see why they chose it.

Ease of Use: This is a pretty good choice for beginners because it is very easy to use. There is only one button to control the power and preset temperature settings, so it’s pretty simple to come to terms with using the Pro. Loading is easy too since all you have to do is remove the mouthpiece when you want to fill the chamber, and replace it when you’re done. The G Pen Pro is a simple, uncomplicated weed vaporizer to use, which is always a good thing.

Build Quality: The Pro is made from aluminum so it’s nice and durable, plus its fingerprint and scratch-resistant, which is always a plus. The mouthpiece is made of plastic though, which is a little problematic. That’s because it’s located right over the oven, and since plastic doesn’t really disperse heat all that well, the mouthpiece tends to get a little warm during use.

Cleaning and Maintenance

It’s really easy to take care of the G Pen Pro. You can use the included cleaning brush to clean out the chamber. As for the mouthpiece, a soak in isopropyl alcohol for an hour or two should do the trick.

How to use

  • Remove the mouthpiece from the rest of the vaporizer to expose the herb chamber.
  • Fill the chamber with herb and replace the mouthpiece.
  • Press the power button five times to turn on the device.
  • Hold down the power button to cycle through the temperature settings.
  • Once the setting has been chosen and heating is complete, inhale from the mouthpiece.

Temperature Settings: 375°F | 400°F | 428°F

Here is a link to the official manual.

Performance & Vapor Quality

Vaporizer Performance: The Pro heats up in about thirty seconds, which is pretty quick for a dry herb vaporizer. As I mentioned earlier, the mouthpiece does get a little warm after you use it for a while.

Vapor Quality: The vapor produced by the Pro is just decent. You wouldn’t expect amazing vapor quality in a weed vape that costs less than $100, but even in that category, the Pro isn’t the best. Vapor quality starts out decently strong but falls off during each session, which is pretty disappointing.

I got the best vapor at the lowest temperature setting because, at the higher ones, the vapor becomes too harsh and uncomfortable. Vapor production isn’t too dense no matter the temperature setting, which isn’t a bad thing since the Pro is meant to be a discreet vape.

Battery Performance: The battery only lasts for about thirty to forty minutes and takes roughly two hours to recharge. Those aren’t great numbers even when you take the Pro’s size and price point into consideration.

Newcomers may like the G Pen Pro but everyone else will be unsatisfied with the average vapor quality. Find out more in the review.