Sigelei Vexus CDA preview | The first Coil-less Dripping Atomizer

The Vexus by Sigelei is the first coil less atomizer to ever hit the market. But questions remain...


Sigelei Vexus CDA Intro

The Sigelei Vexus is a coil-less RDA, called a CDA (for coil-less dripping atomizer). For anyone that drips, it’s almost impossible not being instantly curious about this new product. But is the Vexus really as unique as it seems?

In 2016, a lot of new tanks with ceramic heating elements hit the market. We saw the promise of coil-free operation several tanks, and the one that seemed to stand apart both in design and public opinion was the Altus by Guo.

But it never really took off. The Altus received a firestorm of criticism for various reasons, and unfortunately it does share a key design element with the Vexus: the Center Vaping Unit (CVU) chip.

Does that spell disaster for the Sigelei Vexus? Well, not necessarily. Let’s take a look and find out why.

Sigelei Vexus CDA Gallery

Sigelei Vexus CDA Specs and Features

Kit Content

  • Vexus CDA (Coil-less Dripping Atomizer)
  • Wide-bore PTFE drip tip
  • Spare clips (to secure cotton)
  • Spare o-rings
  • Pre-cut cotton


  • 35mm H x 23.5mm W
  • CVU chips (instead of coils)
  • Temperature control compatible (NI setting or TCR 0.0031-0.0040)
  • Adjustable bottom and side airflow
  • Purer and bigger flavor with trisectional airflow
  • Stainless steel or black finish

Give it a chance


For those of you inclined to write off the Sigelei Vexus as another failed implementation of the CVU chip, keep in mind that there are a couple key differences from the Altus which may favor the Vexus.

The Vexus is a dripping atomizer which should eliminate concerns over wicking issues. If your cotton is dry, just drip more juice! You won’t have to muss with a whole tank of liquid or have to fret over wicking an RTA.

And, the Vexus has a dual-CVU which should increase flavor and vapor. The Altus took some lumps for it’s price, and for failing to deliver the “giant clouds” it promised – many reviewers found it produced more flavor than vapor.. If Sigelei priced this CDA affordably, folks may be willing to look past the Altus and give the Vexus a shot.

Unanswered questions...

Though the CVU chips appear to be similar — if not identical — to the chip used in the Altus, there is no word from Sigelei on the resistance of the Vexus with the chips, but like the Altus, Sigelei claims the Vexus can be used in standard wattage mode or temperature control mode.

But they recommend using nickel mode or a similar TCR, and hitting it with a 0.1-second boost of high power for a preheat. I guess if you use it in power mode, it may be best to use it on a mod like the Tarot Pro from Vaporesso where a curve can be set for regular power.

But note, Sigelei is not saying what the chips are composed of, only that they are made in the USA from a “secret” material. If they are indeed the same (or similar) chips used in the Altus, it may be safe to assume they are tungsten coils covered with ceramic.


What do you think?

Is the Vexus doomed to wither in the negative shadow cast by the Altus, or is it different enough that you may like to try it? Can you support a product with a heating element of undisclosed material?

Let us know in the comments section below.

  • Nytrx

    I’d only be interested in this if it was more flavourful than the hadaly. Review soon?

  • Sinister ZaDjALi

    Sounds interesting, Waiting for the review!

  • Jballs2thewalls

    I bought the vexus and wicking it properly with the cage got extremely hot,and poor vapor production.not impressed.