G-Pen Connect Review: A Reliable Connection


by James Bickford

Updated: August 31, 2021

g pen connect review

Review Score: 81/100

Price Range:
Battery Capacity:
Variable Voltage:
3.1V, 3.6V, 4.1V
Glass Adapter:
Works with:
  • Wax icon


  • Sturdy build and magnetic connections
  • The spring release carb cab delivers great airflow
  • Good battery life


  • Not compatible with dry herbs

Starting Price: $ 179.95

The G-Pen Connect is a hybrid vaporizer that combines elements of a dab pen into a single, portable e-rig. The Connect vaporizer consists of three central parts: the battery section, the atomizer, and the glass pipe adapter. In addition, there are other elements to each of these parts that give the G-Pen Connect a unique design.

The G-Pen battery and carb cab features a magnetic connection giving the vaporizer easy usability. The heating element features an all-ceramic, donut-style atomizer. And it uses a patented reverse airflow system for better inhalation.

What’s Interesting about the Connect

The G-Pen Connect looks incomplete like it has parts missing. However, the is only one difference between the Connect vaporizer and other portable e-rigs like the Oura or the Peak. It is that this vape does not include a glass piece like those other models. Instead, the atomizer housing connects to any 10mm, 14mm, or 18mm glass spout with its glass-on-glass adapter.

The entire vape consists only of the G-Pen Connect battery, the atomizer, and the glass water pipe adapter. Each piece connects to the other with a magnetic connection. At least the battery and the atomizer. The water pipe adapter fits snug over the base of the atomizer housing, then to any compatible female water pipe.

g pen connect review

The atomizer housing features the top-loading, all-ceramic heating chamber. It also uses a magnetic top cap to stay firmly in place. All the parts of the battery section feature a durable metal alloy build. It has the only button on the vape, which controls the voltage and power settings.

The parts all connect seamlessly. The square battery section is very compact and fits into the palm of your hand. It has an all-black front section that belies the two control buttons on its surface. Instead, it is the power and selector buttons. The battery works on both an on-demand and heat-up function.

Does Snoop Dogg own the G Pen?

Snoop Dogg does not own the G Pen. But it was made in collaboration with the rapper. So it featured an engraving of his signature on each model. The company does not make the Snoop G-Pen anymore. But according to the Grenco Science website, Snoop is still “part“ of the G Pen community.

The Kit


The G-Pen Connect kit comes with all the essential parts of the device along with a few extras. The standard kit comes only with the 14mm adapter. The other sized adapters – the 10mm and the 18mm – are sold separately. Here’s what you’ll find in the G-Pen Connect Kit:

  • One x G-Pen Connect Battery
  • One x G-Pen Connect Tank
  • One x G-Pen Connect Housing
  • One x G-Pen Connect Male Glass Adapter (14mm)
  • One x G-Pen Connect Male Glass Adapter Connector
  • One x USB Charging Cable
  • Three x Spare O-Rings

How It Handles

The magnetic connection between the various pieces that make up this vape is very strong. They attach even when holding them a few inches apart. The connection is also strong, and there is no play between the parts. The tank section fits the top of the atomizer section easily. The top cap stays in place but is easily removable.


One of the unique features of the entire G-Pen Connect vaporizer is the spring-loaded carb cap located on the atomizer housing. Instead of a regular carb cap that you can place or remove by hand, the carb cap on the Connect vaporizer lets fresh air into the chamber to clear any remaining vapor without letting it escape. The design is very efficient, and it is unique to the G-Pen Connect.


The G-Pen Connect has a very straightforward operation. First, the battery should be charged fully with the USB-to-USB charging cable. When the charge is complete – when the battery button turns a solid color – the vape is ready to use. Users can first attach the atomizer section to a stable glass piece for a hands-free setup and to simplify loading.


Place the glass piece onto the bottom of the atomizer housing, then attach the entire unit to the open joint piece of any 14mm glass pipe. With the atomizer secure, you can lift off the magnetic top cap and load your material into the chamber. Secure the top cap once the chamber is loaded and attach the battery to the magnet.

The battery section has only one button on its top-facing screen, where the USB port charges the battery. Press the “G” button:

  • Five times to turn on the device
  • Three times to change between voltage settings
  • Two times to select the voltage
  • Users can also press and hold the “G” button to enable manual heating

Once the heat-up time is over, the vaporizer will flash while heating and then turn solid to indicate it is ready to vape. The heat-up time is about ten seconds, but manual heating takes about fifteen seconds. The heat output lasts for about another ten seconds before it starts to cool down again. During inhalation, users can press the spring carb release to increase airflow and cloud production.

Powering the Connect


The G-Pen Connect features an internal 850mAh battery. That can power the vaporizer for at least a day or two. After that, it depends on the frequency of usage and the voltage level. The three voltage levels consist of:

  • 3.1V (Blue light)
  • 3.6V (Green light)
  • 4.1V (Red light)

Using the highest temperature level will drain the battery quicker, providing for most cloud production. Users can choose how they want to use the vape. They could also opt for manual heating to control the length of the heating process, but they will still need to choose their power level.

Vaping the Connect

The G-Pen e-rig can output vapor as well as other devices in this class. The unit has a sizable chamber. So it can fit a good amount of material, while the flat-disc heating element heats up slowly to allow for maximum flavor release. Along with flavor quality, though, the vaporizer can also output a lot of milky clouds.


The heat-up time is minimal, as anything faster would be too harsh and burn through material too quickly. The inhalation style is also loose and is almost effortless. The spring-loaded carb cab is the highlight of the Connect’s design. However, it is an ingenious way to clear the leftover vapor in the pipe and a cooling mechanism.

The compatibility of the 14mm glass adapter could be a problem. But only for users that do not have a glass water pipe of that size. Of course, they could order the other sized pieces, but there should have been more versatility with the choices. But still, 14mm is universal. So make sure you have a compatible water pipe before getting the G-Pen Connect.

How does the G Pen Connect work?

The G-Pen Connect is a concentrates device that attaches to water pipes and other inhaling devices. The Connect vaporizer consists of a battery section and a heating atomizer. They come separately but attach to form a vaping vape for solid and liquid concentrates. Users need to charge the battery section and then attach the male glass adapter to the heating atomizer. After placing the atomizer into a glass bubbler, users can attach the battery to the atomizer and control their vape with the battery’s single-button switch. The G-Pen Connect features three different voltage levels. It heats up in only fifteen seconds.

Why is G Pen not working?

There could be many reasons why the G-Pen Connect is not working. First, check the battery connections and ensure that the battery is fully charged and activated. If problems persist, make sure to contact Grenco Science technical support.

How to fix G Pen Connect?

It would be best not to fix your G-Pen Connect as any attempts could void the warranty. However, if your G-Pen Connect is experiencing problems, contact your retailer or Grenco Science directly so they can advise you on what to do.

The Competition

PuffCo Peak

The PuffCo Peak was the first salvo in the fight to create a portable e-rig. The Peak is unique for its distinctive, pyramid-like glass water pipe featuring a few LEDs that illuminate when used. The Peak consists of this eye-catching glass piece attached to the battery base that also features the atomizer section that extends from it.

Puffco Peak desktop

The Peak uses four preset temperature levels with a range of between 450F and 600F. The device uses an all-ceramic heating element and takes about two hours to charge.

Focus V Carta

The Focus V from Carta is a dual-use, portable e-rig to vape both concentrates and dry herb material. The Carta does this with its two buckets made of different materials. In addition, users can opt for either an all-quartz or all-titanium heating element to vape either waxes and oils or herbs.


The device has four preset temperatures installed onto its battery. But the Carta can also pair with a smartphone and the Carta app to enable full temperature control.

G Pen Connect Vaporizer Specifications

G-Pen Connect
Male Glass Adapter: 14 mm
Battery Capacity: 850mAh
Micro USB charger: Yes
Variable Voltage: 3.1V, 3.6V, 4.1V

Pros & Cons


  • Easy-to-use
  • Simple controls
  • Sturdy build and magnetic connections
  • The spring release carb cab delivers great airflow
  • Good battery life
  • Good versatility with the voltage settings


  • Not compatible with dry herbs

Conclusion: Is the G Pen Сonnect Worth it?

The G-Pen Connect replaces butane torches as the main power source for using a high-powered dab rig. Users can simply attach it to any compatible water pipe and get an exceptional vaping experience. Of course, users will have to have already a water pipe, which means the Connect is meant for experienced users who have the requisite hardware.

But, users who are interested in trying dabs can also enjoy the vaporizer. It has easy functionality, simple one-button controls, and only a few pieces of equipment. So users do not have to mess around with many different parts. In addition, the variable voltage settings give users enough range to either enjoy mellow, low-temp dabs, or high-power, billowy clouds of vapor.

Published: May 28, 2020Updated: August 31, 2021

James Bickford

My way of understanding the significance of vaping came not only through the disruption of smoking but its effects on society as a whole. Now I bring people to vaping and bring vaping to people. I love using new gear, writing in-depth reviews and generally nerding out about vaping to like-minded people.


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