• Smoke Free Rating:
  • Price Point: $149.95
  • Material Used: Wax Concentrates


Lately, we’ve been seeing a surge of portable dab rigs that are basically one and the same; a base with a rechargeable battery, several preset temperature profiles, and each with its own water filtration system. All these devices claim to give you the power and the performance of a desktop rig while providing you with portability you can get from smaller and more compact devices.

Just recently, esteemed vaporizer manufacturer, Grenco Science, released what could be a game changing device. The G Pen Connect Vaporizer is a small and compact unit that easily connects to your bong or water pipe to turn it into a torch-less dab rig. It offers portability you simply can’t get with today’s so-called portable dab rigs. It weighs and measures only a fraction of their size and the costs, let’s just say it’s a lot more affordable than any of these rigs on the market today.

Nevertheless, it comes with its own pros and cons and we definitely have something to say about the latest offering from Grenco Science. So, without further ado, let’s start the G Pen Connect Vaporizer review.

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First Impressions

The G Pen Connect is packaged in a small carrying case with a paperboard just barely covering the carrying case.

The paperboard is lined with branding and product information. For those who are in the habit of throwing away cartons and boxes, we strongly suggest to keep the paperboard, at least not while you’re really used to operating the G Pen Connect Vaporizer. Instructions on using the device is printed on the inside part of the paperboard. There’s no need to rip or cut the paperboard apart since it has small indented parts that holds a small part of paperboard that acts as a fastener. Simply lift the fastening and flip the paperboard over to see the instructions. Nevertheless, the G Pen Connect was designed and engineered to be an intuitive device that does not require a deep learning curve.

We loved that Grenco Science used the same paperboard and printed the instructions on the same material instead of using more paper. It uses less paper which means less trees had to be knocked down. Their initiative for manufacturing sustainable and eco-friendly components on their vaporizers extends to the carrying case itself. It’s made out of hemp which means renewable source of raw material is involved. Having said, the carrying case (measuring at 4.5 inches x 6 inches) is full of compartments that snugly holds each component of the unit.

On the left side of the carrying case as it stands upright is the compartment that holds your vaping essentials. You’ll find the USB charging cables of a small pocket with a magnetic flap as well as several replacement O-rings for when they’re worn out. Above the pocket, you’ll find three loops or rings where dab tools can fit in. On the opposite side, you’ll find the main compartments holding the parts of the vaporizer. Each component is sunk halfway so that they won’t fall off from their rooms when you bring the G Pen Connect with you when you’re out and about – something that the carrying case and the device itself was designed for. Other than that, you’ll find a secret compartment that was cut out to hold a concentrate container which we wish was included to complete the whole on-the-go set up. Without it, it felt that it was just a last-minute addition to the design of the carrying case probably because it looked a little empty.

Overall, the packaging (carrying case) does what it’s supposed to do.

Strong Points:

  • 3-Piece Design
  • Battery Has a Durable Metal Housing
  • 850mAh Battery Capacity
  • Pass-Through Charging
  • Variable Voltage Settings
  • Easy and Simple to Use
  • Reverse Airflow Technology
  • Ceramic Heating Element
  • Spring-Loaded Carb Release
  • Magnetic Connections
  • Glass Adapter
  • Affordable Price Point

Weak Points:

  • Requires a Bong or a Water Pipe
  • Carb Cap Can Get Too Hot
  • Could Have Included a Concentrate Container


Portability is where the G Pen Connect Vaporizer shines the most. The carrying case itself is small enough to fit in your bag or can be carried on its own. Without the Grenco Science logo slapped on the carrying case, it looks pretty much like an average headphone case or a controller or a D-Pad case for your video game console. Even with Greco Science’s branding on it, it still looks pretty discreet. The device itself, with all the pieces assembled, still fits in the palm of our hands. In terms of weight and bulk, the G Pen Connect easily surpasses all of the portable dab rigs on the market in our own humble opinion. It is in itself a class of its own that it needs its own platform.

G Pen Connect portability

We can see ourselves taking the G Pen Connect to parties and on several occasions where we might run into quick sessions just because it’s so easy to carry. Having said, we will take it with us when visiting friends whom we know owns a water pipe or a bong at home. When taking the G Pen Connect when you travel, make sure you visit places where there are head shops in the vicinity. That way you can simply but small and cheap water pipes that you can dispose of when you head home after your vacation. When going on camping trips or when on beach escapades, make sure to bring a small bong with you.

The G Pen Connect Vaporizer is probably the most portable device we’ve seen so fat. It boasts a small size and lighter weight, and while it requires you to carry or purchase a bong separately, the fact that it allows you to use different kinds of water pipes outweighs the fact that it does not include one. Because of that, the G Pen Connect gets a five-star rating from SmokeFree.


Our staff and dedicated testers have had their hands on the G Pen Connect for quite a while now and we can say that it’s held up pretty well.

The battery is housed in an all-metal body that effectively protects the battery and the internal circuitry from damage. The battery has a decent weight to it and weighs almost half a pound. It does not at all feel weak or cheap. Likewise, the part that houses the heating element is relatively durable and feels like it can take a beating. The glass component is made out of high-quality raw materials making it more durable than most glass connectors.

G Pen Connect durability

What we loved mostly about the design of the G Pen Connect, which we believe have helped make it more durable and also help maintain the overall integrity of the unit, is its magnetic connections. The G Pen Connect Vaporizer does not have any threaded connection. The battery connects to the housing of the heating element using magnets and the glass attachment is held together by O-rings. This means that because there are literally no threaded connections, the G Pen Connect Vaporizer encounters less wear and tear and will have fewer spots where wear and tear may occur. Threaded connections wear out over time. Furthermore, one needs to be careful not to overtighten the threads of they can get lose that they won’t hold the parts together anymore.

Honestly, for less than $150.00, the G Pen Connect is a great option for those looking for a high-quality device that allows them to consume extracts. Because of this, we give the G Pen Connect a five-star rating in durability.


The G Pen Connect Vaporizer is a device that can vaporize wax concentrates. It’s also capable of providing you with three preset temperature settings allowing you to get the best experience depending on your targeted result.

The three preset settings are as follows:

  • 3.1 Volts – Green Light
  • 3.6 Volts – Blue Light
  • 4.1 Volts – Red Light

These preset temperature profiles allow you to get the perfect dab depending on your tastes. The lower temperature levels coupled with the ceramic heating element ensures the production of flavorful vapors with subtle potency. The kind that lets you be functional with a light buzz. The lower temperature settings are great for beginners. The higher temperature levels, on the other hand, generates milky clouds of vapor that can be a bit warm and packs a lot of punch. The higher temperature levels are better suited for those with high tolerances and for advanced consumers. It also offers hands-free use via the sesh-mode or if you want to do it manually, by pressing down the power button. The G Pen Connect offers a versatile and a customizable experience when it comes to the temperature department but today’s portable dab rigs all offers some sort of temperature control.

We would have loved to see the G Pen Connect Vaporizer have the ability to vaporize herbs but maybe that’s us asking too much.

Vapor Quality

The G Pen Connect Vaporizer hits the right notes when it comes to vapor quality.

The G Pen Connect was made with a ceramic heating element allowing it to extract the best flavor your concentrates have to offer. The G Pen Connect Vaporizer uses a ceramic disk instead of quartz rods because ceramic is porous and offers a low and slow heating action that’s perfect for consuming wax. The variable voltage levels also ensure that you can play around with vapor production.

G Pen Connect vapor quality

The heating element is able to maintain and faithfully preserve the flavor of the concentrates. Especially at the lowest setting, we were able to taste the terpenes and the flavonoids native to the plant matter the concentrates were derived from. Moreover, because the G Pen Connect Vaporizer uses a torch-less heating method, the concentrates do not get burned and you’ll experience little to no change in the taste of the vapor.

We’re definitely satisfied with the vapors we got from the G Pen Connect Vaporizer.

Price to Performance Rating

For the price, the G Pen Connect Vaporizer is a great alternative to using portable dab rigs like the Peak and the Carta, its $150.00 price tag is still better than the $300.00 and the $400.00 price tag of the Carta and the Peak. Especially if you already own a bong or if you have several bongs at home, the G Pen Connect Vaporizer is a great option.

Having said, we’re glad to have come across the G Pen Connect especially because it’s capable of fitting several water pipes with the use of different sized glass adapters. It’s a more convenient and straightforward means of vaping. It’s perfect for beginners because of how simple and easy it is to use and put together. It’ affordable and does the job as good as its most expensive counterparts.

We’d recommend the G Pen Connect to anyone wanting to try if dabbing and for those with bongs and water pipes at home.
KandyPens Oura rating


The G Pen Connect Vaporizer is ideal for anyone looking for a cheaper alternative to today’s portable dab rigs. It offers almost the same temperature control and ability to dab with the benefit of moisture conditioned vapor and water filtered clouds, at such an appealingly low cost.

It’s size also makes it so that you can take it with you almost anywhere you go. You can use a variety of bongs with it instead of having to be stuck with one. You can try it on different water pipes making the experience more social as you and you friends can each bring your own.

So, if you want to try if consuming concentrates is good for you, we suggest checking this vaporizer out!

Where to buy G Pen Connect?

g pen connect

Buy G Pen Connect from VapeActive website.

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