Geekvape Karma Kit Review | A “Hybrid” Tube Mod Kit

A well-made “hybrid” mod and subohm tank designed for direct connection and simplicity.


GeekVape Karma Kit Intro

Today we will review the Karma Kit by Geekvape. If you have been vaping for any length of time you are likely familiar with the Geekvape brand. In a relatively short period of time, they have become known for original, well designed products at affordable prices. The first example that comes to this reviewer’s mind is the Tsunami RDA. When I first saw the Tsunami I immediately thought “poor man’s Kennedy”, but that isn’t really fair. While inexpensive, the Tsunami was a game-changer at the time of its release, delivering a huge value with its Velocity style deck, big airflow, and sleek styling for about ¼ the price of a Kennedy. After the Tsunami, Geekvape continued its hot streak with the Griffin and Avocado, among other offerings.

With a string of successful products, Geekvape has built a solid reputation for delivering well-made hardware at affordable prices, so I was very excited to get ahold of the Geekvape Karma Kit for review. I am a huge fan of copper mechanical mods, direct-to-battery 510 connections, and genesis style RTAs – all features of the Karma Kit – plus the RTA can be converted to an RDA in a few easy steps. Add to that a key safety feature (discussed below), all for under 50 bucks retail (under $30 on sale), and we have another home run, right? Well, let’s take a look.

GeekVape Karma Kit Specs and Features

Kit Content

  • Copper mechanical mod
  • Spare tank glass
  • 510 drip tip adapter
  • Two sets of spare tank o-rings – one blue and one red
  • Assorted spare o-rings for cap |deck| and 510 adapter
  • Spare screws
  • T-style hex tool


  • Mod: 25 mm x 84 mm
  • RTA: 25 mm x 46 mm
  • RDA: 25 mm x 30.5 mm
  • RDA capacity: 2 mL
  • RTA capacity: 5 mL with large side fill juice port
  • Copper construction
  • Magnetic button
  • Insulated battery compartment
  • Single 18650 battery (not included)
  • Adjustable side airflow for dual or single coil use
  • Velocity style deck with large post holes
  • Wide-bore insulated drip tip with 510 adapter

Notable remarks


Opening the box, I was immediately struck by the design. The twisted grooves machined into the mod and atomizer, and the copper and black color scheme work perfectly together to give the mod an elegant look belying its affordable price tag. Closer inspection reveals that the machining is quite nice, threads seem good, and the matte coating on the black parts is smooth and even. The body of the mod looks to be machined from a solid piece of copper, with a direct-to-battery 510 connection on the top cap and the expected vent holes near the magnetic switch assembly. It is notable that the recessed fire button has no lock.

Remove the switch assembly and you will see the added safety feature: a plastic liner which allows the user to insert the battery in either direction without fear of creating a short circuit due to a damaged or defective battery wrap. Geekvape describes the “insulated battery compartment” as “safe and durable”.

With a battery installed, there is no manual adjustment necessary. A spring-loaded delrin ring in the switch housing applies gentle upward pressure on the battery to prevent any movement up or down, and it seems to work well. However, there is some slight but noticeable battery movement from side to side during normal use.

Moving on to the genesis style RTA, there is really nothing we haven’t seen before: Velocity style deck, large post holes for exotic wire, generous adjustable airflow on the cap – all positives for sure, but there is no plug included to run the RTA in single coil mode (think Avocado).

The unique feature of the RTA is that it can easily be converted to an RDA by removing the glass tank and center pole from the deck. The RDA can take full advantage of the single coil airflow adjustment on the top cap.

An issue lurking


The one surprising deficiency that I saw on the RTA/RDA was the non-adjustable 510 center pin – it just doesn’t protrude far enough from the threaded portion of the 510 connector to make some folks comfortable for use on a direct-to-battery mod. I measured this sample with a digital micrometer and found it to be 0.4 mm. For comparison, the pin on my Limitless RTA protrudes 1.2 mm, or three times as far. I still used the Karma Kit, but some will find the pin too close for comfort. Interesting that when I measured my Avocado 24, another Geekvape product, it was the same 0.4 mm as found on the Karma.


  • All-in-one kit
  • Easy to configure RTA/RDA
  • Solid copper
  • Well machined and finished
  • Direct-to-battery 510 connection (subjective)
  • Interesting design (subjective)
  • Affordable


  • Short, non-adjustable 510 pin on the atomizer deck
  • No lock on fire button
  • No plug for using RTA in single coil mode
  • Slight side-to-side battery movement


I like this product, especially at the price-point. It is well made, looks good, with a nice fit, finish, and heft, giving it a quality feel. Built with dual 24 gauge, 3 mm, 9-wrap Kanthal coils at .42 ohms, the RTA gave good flavor and vapor with no dry hits – but the kit is not without flaws, the most serious being the 510 pin on the atomizer. If Geekvape is going to market this as a “safer” mod and go to the trouble of lining the mod tube with plastic for safety, then they should also extend the 510 pin on the atomizer to a more comfortable length, and also add a lock to the firing button – both of which seem more critical to safe vaping. As an experienced user of mechanical mods, none of this is a deal-breaker for me but it feels contradictory and may turn off some vapers to an otherwise solid and affordable offering from Geekvape.

Gary Joseph
Gary is a retired technical writer residing in the metro Detroit area. Besides vaping, and writing for Vaping360, some of his other interests include motorcycling, watch collecting, bicycling and fitness.