Grenco Science G Pen Roam

Grenco Science G Pen Roam
Grenco Science G Pen Roam
Grenco Science G Pen Roam
Grenco Science G Pen Roam
Grenco Science G Pen Roam

Grenco Science G Pen Roam

Regular price $299.99 Sale price $189.99 Save $110
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The G Pen Roam is a portable concentrate vaporizer with superior water filtration. This ergonomic device is designed with an enclosed glass hydro-tube that cools and purifies draws to perfection.

Powered by a rechargeable 1300mAh lithium-ion battery, the Roam rapidly charges with pass-through technology. This vaporizer boasts an LED display and a temperature range of 600 ° F –800 ° F, providing users with flavor profile exploration.

Designed for durability, the Roam sports an aluminum shell, as well as protective housing for its full quartz tank. For easy cleaning, this vaporizer features a removable silicone mouthpiece and Max Cleaning Mode.
  • Borosilicate Glass Hydro-Tube
  • Spillproof & Self Contained
  • Full Quartz Tank
  • Durable Aluminum Alloy Shell
  • Rechargeable 1300mAh Lithium-Ion Battery
  • Rapid Charging With Pass-Through Technology
  • LED Display & Haptic Feedback
  • 600 °F–800 °F Temperature Range
  • Removable Silicone Mouthpiece
  • Easily Disassembles For Cleaning
  • Includes Hemp Travel Case


How to use the G Pen Roam Vaporizer?

You'll notice the Roam has two buttons. One is used to turn the unit off and the other opens the lid. You'll also see a small hole where your thumb goes through to open the lid. This is how you load the Roam with concentrates.


Vapor Quality

Vapor quality is good; the length of the vapor path makes for cooler hits than if you were vaping straight from an atomizer. The water filtration system helps a lot, but more on that below.


Water filtration system

The Roam vaporizer water filtration is doing it all, while being portable, discreet, and vaporize any material you may like. While doing all this, it also helps the Roam to produce some of the best vapor quality we have ever experienced.

This making it ideal to enjoy high-quality water filtered vapor from your favorite material on the go.

Borosilicate glass Hydro-Tube

The glass tube is making sure the vapor stay cool and smooth before it's inhaled, and it's made from Borosilicate glass. It's also spill-proof, and is safely stored inside the device, so you can carry it around with no worries of it breaking or leaking.



The G-Pen Roam Vaporizer has a 1300mAh lithium-ion battery that lasts for approximately 20 sessions. With its strong battery, it heats up quickly, it has a 30-second heating time so that its battery won't drain too quickly. Of course, you can extend or reduce the heat duration as you please.

Charging the G-Pen Roam Vaporizer

The charging time of the G-Pen Roam is about 90 minutes, and it can be used while charging. You can also purchase an extra battery to swap out whenever you want and ensue no usage downtime.

G-Pen Roam Vape Temperature Settings

Set the Roam to a desired temperature in between 600° F and 800 °F with an interval of 25 degrees Fahrenheit. You can adjust the temperature by using the buttons at the bottom of the device.

If you vape for longer periods of time than usual, you might want to use the maximum power settings so that your batteries don’t drain too fast. It’s a great way to clean out any residue from the chamber.

Build Quality

It comes with an aluminum alloy case and a silicon coating for added protection against scratches. And all "mechanical parts" are made out of the higher quality materials available.

How to clean the Roam?

All parts can be removed separately from one another. These include the quartz tank chamber, the silicone tubing, the hydroponic tube, and the mouth piece.

Then use a clean cotton swabs and an isopropyl alcohol wipe for cleaning the G-Pen Roam, just like you'd use them for any other vape pen or concentrates device. All parts of the Rover are removable, so they can be cleaned separately.

Check Out Our Cleaning Guide Here!

What can you vape with the Roam?

With its fully quartz tank and powerful battery, the Roam Vaporizer is able to vaporize almost anything — including concentrates such as wax/shatter. It works best when used for concentrates such as waxes, oils, shatter, etc.

Filling up the water tube and concentrate tank

The water tank is located at the top of the device, and to fill it up you just have to remove it, add the desired amount of water and then connect it to the G-Pen Roam Vaporizer again.


What's in the box?

  • 1x G PEN ROAM Vaporizer
  • 1x Quartz tank
  • 1x Glass tube
  • 1x Mouthpiece
  • 1x Tool
  • 1x Micro USB charging cable

We have 100% FREE Worldwide Shipping. All Orders, No Minimum!

** Due to the current COVID-19 situation, possible affected countries may be experiencing a shipping delay by carriers and customs.

Due to the high demand in our shop, it's likely that the normal delivery time might increase up to additional 10 more days in some cases.

Note: In some countries, delivery can be delayed by customs. We’ll let you know.

We recommend that you keep an eye on your tracking.

If you have more than one item, its very likely you will receive them separately. Each item will have its own shipping code.

Free Standard Shipping

Domestic and International:

For our USA based customers, orders are fulfilled within 24 hours since payment is processed. Standard deliveries take on average 5 - 10 business days excluding weekends. If your package is marked delivered by the USPS, and you do not receive the package, you will need to contact the local post office who has marked it delivered. We will not refund orders that are marked delivered.

Express deliveries for USA can take on average 2 - 5 business days.

For other international customers, orders are fulfilled within 24 hours since payment is processed. Deliveries take on average 10 - 18 days excluding weekends.

Delivery doesn't require signature.

- Fast Shipping - DHL :

Orders are processed within 24 hours since payment is processed. Deliveries take on average 5 - 10 business days, weekends are not included.

Tracking Info: You will receive the tracking number and shipping status within 24 hours of your purchase. Weekends/holidays are not included.

Signature may be required at the time of delivery.

When will I receive tracking information:

For standard shipment, within a week of your order being fulfilled (shipped), you will receive notification of your tracking number.

If you do not receive your tracking number within 7 business days, please contact


All purchases made through Sezzle will have an additional settlement period which could add another 2 - 3 business days.

Return Policy




We hope you love your purchase. If not, feel free to return it. Some items are eligible for return if they are:

un-worn, un-washed, un-altered and have the original tags still attached
received within 10 days to the date it was delivered or purchased
Buyer is responsible for returned shipping costs. We suggest getting tracking for the package, for we are not responsible for any lost in transit packages. There will also be a re-stocking fee on certain items.

We cannot guarantee we will be able to exchange your item because of limited availability. However, if we are able to, buyer is responsible for shipping both ways.

Please make sure you check your order upon delivery. If you find any problems with your order, please contact us within 5 business days of it's arrival, or buyer assumes responsibility.

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