The Aspire Nautilus X review we will get to in a moment. But first.. How long have we had to wait for the Nautilus tank update?! Hopefully, it will all be worth while!

UPDATE: Since writing this review, the Aspire Nautilus 2s tank has been released. Another great MTL (mouth to lung) tank option.

A Long Awaited Update. But Is The Aspire Nautilus X Worth The Wait?

For vapers that haven’t come across the original Aspire Nautilus and Nautilus Mini and Nautilus 2 tanks before, in short, they are up there with the best clearomizer tanks for mouth to lung vapers and have been for a number of years.Aspire nautilus X Review

Recently we have also seen the addition of the Aspire Triton Mini which also offers a great MTL vaping experience.

Can the new Nautilus X tank live up to it’s name? Let find out.

In The Box

The Nautilus X tank comes in a tidy little perspex case and includes the following:

  • 1 X Nautilus X Tank
  • 2 X 1.5 Ohm U Tech coil – One Pre-Installed
  • 1 X Spare Pyrex Galss

Aspire Nautilus X MTL Tank

Build Quality & Design

The Aspire Nautilus X is completely different, in all ways, from the original Nautilus tanks.

Not surprising seeing as vaping has come along way since Aspire first released the original tanks.Aspire nautilus X vs Nautilus Mini

They have done a great job as well. The Nautilus X is great looking tank. It’s kind of a squashed version of the Aspire Cleito minus a few obvious points.

The build quality is excellent.Nautilus X Tank by Aspire

As would be expected, it can be broken down for easy cleaning. Aspire have also introduced top fill, that is fast becoming standard with tanks. Simply unsrcew the top cap fill on screw back on.Aspire nautilus X Parts

The tank has been made to be TPD compliant, so 2ml is the max at the moment. Whether an extra Pyrex extension will be released to offer increased capacity remains to be seen.

With this being a fairly small tank it does look great on the mods I tried. Especially the Artery Nugget. Which is actually a great little partner for the Nautilus X if you are looking for a stealth vape setup.Aspire Nautilus X ReviewHere it is on the Innokin Cool Fire 4 TC 18650 Mod.

Aspire Nautilus X on Innokin Cool Fire 4 TC18650

U Tech Coil

Aspire have introduced a new coil technology with the X called the U Tech Coil. Instead of the standard coils that pair with a chimney in the tank. The U Tech coil acts as the chimney as well as helping with the airflow.U Tech Coil Aspire Nautilus X

One of the first things I noticed with the tank is the lack of airflow holes. There are 2 very small holes at the base of the drip tip. These are adjustable by rotating the top plate on the tank.

This is where the U-Tech coil comes in. The new coil design, in a U shaped chamber, allows for air to flow through the top airflow and around the coil twice before taking a drag.aspire Nautilus X utech atomizer-coil

In short, there are pretty much no similarities to the original tanks in terms of build and deign.

How Does The Aspire Nautilus X Perform?

The Nautilus X comes with 2 x 1.5 Ohm U-Tech coils, one already pre-installed.

As mentioned before, the coil acts as the chimney. Once the coil is in place the seal in the base of the tank is very much air tight.Aspire Nautilus X U Tech Coil

Most tanks have airflow holes on the base, which can on occasion be one of the main causes for leaks.

The Nautilus X has none. Aspire have done this to cut down on the chances of e liquid leaking. Again, likely in light of the TPD regulations.

I have to say it works a treat. I have not had so much as a drop of juice leaking from the tank.

Flavor & Vapor

The new coils do a great job of creating the additional airflow needed for a satisfying vape.

This is a mouth to lung tank so it goes without saying the clouds aren’t going to be competition winners.Top Fill Aspire Nautilus X

Vaping at 20W, the clouds it does provide are very respectable. The coils are rated at 14W-20W, I did manage to go a few watts beyond this but 20W was my preferred setting.

The flavor I found was very good as well. I vaped a 60/40 VG/PG juice and it wicked well with no dry hits.

Best way to get to your preferred vape is to start low around 14W and work your way up one watt at a time.

Of course, this is after the coil has been primed. Or in other words, after you fill the tank let it sit for 5 minutes to allow for the wick in the coil to soak up the e juice.

If you are a new vaper, this is a very important point. If you don’t do this and fire up your device you will burn your cotton and the coil will need to be replaced.

Changing the airflow makes a difference to the draw, this is down to personal preference but I went for the airflow half shut.

Changing the airflow makes a slight difference to the draw, this is down to personal preference but I went for the airflow half shut. Aspire Nautilus X

It just gives a slightly tighter or looser draw. Not by much but it’s something you will want to have a play around with.


  • Excellent build quality
  • I experienced zero leaks
  • Simple to use
  • U Tech coils perform well
  • Good Flavor and vapor production


  • None that come to mind

Final Aspire Nautilus X Review Verdict

While the Aspire Nautilus X is only a Nautilus by name, it is a great addition to the mouth to lung tank line up.

Along with the Triton Mini and the three Nautilus tanks, Aspire have a selection of the best MTL vape offerings on the market.

It goes without saying, the X should be considered if looking for this category of tank.

Jonny - Ecigclick

As the founder of Ecigclick, I've been vaping since 2010 and been cigarette free ever since. Ecigclick began with the aim to simplify & help smokers make an informed decision to make the switch to vaping. The Ecigclick team have personally tried and tested over 2000 products over the past 12 years. If you need help getting started vaping or just want to say hi then please feel free to get in touch. The team and I will help where we can!

Build Quality
Ease Of Use
As the founder of Ecigclick, I've been vaping since 2010 and been cigarette free ever since. Ecigclick began with the aim to simplify & help smokers make an informed decision to make the switch to vaping. The Ecigclick team have personally tried and tested over 2000 products over the past 12 years. If you need help getting started vaping or just want to say hi then please feel free to get in touch. The team and I will help where we can!
aspire-nautilus-x-reviewOverall the Nautilus X from Aspire is a great little tank that not only performs very well but had zero leaking. At least for me. I would definitely recommend you keep this in mind if you are looking for a mouth to lung tank to vape.


  1. New(ish) to vaping, I have just bought the Nautilus X tank, do I need to keep the wick submerged in juice at all times? This seems odd as it sits quite high in the tank, I have been told on my old set up that the coils should always be submerged or they will burn out quickly.

    • Hey Jon,

      It’s best practice to have the wick holes submerged, at least 1/2 – 3/4 of the way at all times.

      It’s not the end of the world if you don’t though, just try not to let your wick run too dry or you could get dry hits which can burn the cotton and ruin your coil.

      As you can see from the 2nd to last image above the wicking hole begins at the bottom of the tank.

      Is your tank set up like that? The above is the 2ml tank.

      If you are using the 4ml tank with extension (The above 2ml has no extension) then just be sure the extension and coil is installed correctly. I have made the mistake when using the extension where the coil was sitting quite high up.

      It should sit exactly the same as the images above.

      Hope that makes sense! Let me know.

  2. I’ve been vapeing on the nautilus x for a couple of months now and think its an awsome tank as I got bored with sub ohm vapeing and wanted to go back to what I first gave up smoking with 2 years ago. Its by far the best tank and I vape straight to lounge with it no problem none of the problems people seem to have.

    • Still using mine when I go out as well Simon when I fancy a change from sub ohm vaping.

      We have just received the Aspire Nautilus 2 as well. We have a review coming soon!

  3. I had mine for a couple of months now. I bought it mainly because of the very annoying leaks of other systems. And not even a hint of a drop outside the air flow. Here the Nautilus X gets a 10/10. There’s also no perceptible atty flooding with the dreaded gurgling, like I had with the Joyetech Cubis. The flavour and TH is enough for me even at 14W. I vape with fruity flavours at 70VG/30PG and 10mg nic. So far so good.

    However the life span of the 1.5 ohm coil is very disappointing. After 3-4 top ups it starts developing a burning taste or sometimes a metallic aftertaste reminiscent of the smell of overheated electric wiring. It even makes me cough although I’m a hardcore vaper since 2009. The coil life before burn out translates to about 2 days at my usage. Not good.

    I have yet to find my optimsed system…

    • Hey Darren,

      I still use mine daily and it does a great job for me with 6mg nicotine 60VG / 40PG juice.

      The harsh throat hit and lack of vapour could be down to nicotine strength and PG percentage being too high. What nicotine strength and PG/VG % ratio are you using?

      Are you also opening up the airflow ring fully?

  4. It’s a great tank and I have the 4ml extension installed also and all sits on my iStick Pico 75W. I vape 50/50 juice at 18W.

    But oh dear, the coils just don’t last very long at all! If you see 4 days use, you’ll be very lucky indeed 🙁

    That’s a shame, I would see a BVC coil on my old trusted standard Nautilus or Triton 2 last me at least 10 days!

    Back in the box…

  5. Nautilus X is so cute tank. Sleeping for a long time in his box. When I used it, I was very pleased. But coils are so much expensive, and will wear rapidly. So I went back to my old loves.

    • Hey Craig, thanks for the comment.

      Out of interest, what PG/VG ration juice do you use? Is it the vapour or the tank itself that get too hot? And what wattage do you vape at?

      • I have been using the Nautilus X for 5 months now. It gets very hot on the mouth piece (dipstick) which as you know is made out of plastic. For the MOD I am using the Apollo Reliant mod. Could you tell me if I need to change this MOD. I feel that this mod is too strong for the Nautilus X. Using watt control at around 17 ish Watts. I smoke maybe 2-3 tanks per day, and I think the coils run out in about 1.5 weeks, is this something you guys have noticed or is my mod setting off?? Please let me know! I am thinking about getting a new tank and mod soon. Wonder which ones will be better than my current Nautilus X + Reliant set. Any IDEAS??

        • Hi John,

          Has the drip tip always been hot? It’s made of Delrin which should insulate to a degree but drip tips can get hot, especially if taking 4/5 + drags in a row.

          I still use the X when I want something more discreet, I don’t really get too hot a drip tip but as with any tanks that I feel getting too hot I tend to tailor my vape to suit. So I will take softer draws and try and not take too many drags in a row.

          The mod wattage can be changed a you know so the mod shouldn’t be an issue really. Do you get a decent vape by dropping the wattage a touch?

          If you are looking for a new tank that provides mouth to lung vaping then the Aspire Triton Mini was a good one for us.

          May be worth trying it with the Apollo Reliant you have already as you may not have to buy a new mod.

          If you want to look at new mods check out our recommendations:

          Box Mods
          Mini Box mods

          Of course, any other questions please let me know!



    • I think the Endura T18 has a 14W power output (off the top of my head) and the coils on the Nautilus X are recommended for 14-20W. So they will be OK with the T18. I will see if I can find both later and test them out though.

  6. I’ve been using the Nautilus X since its release, and am very happy with it. It can’t really be directly compared with the old nautilus Mini (which I used before) though as it is so different. Its very well made, and I’ve been really happy with it. But don’t expect it to be like your old Nautilus…I’d say it was more of a halfway house between the Mini and a sub ohm tank, you get more vapour, more taste, yet slightly less of a throat hit (which is a lot smoother). I’ve paired my X up with the Aspire Odyssey mod and it works a treat at 19W to 20W…

    I also noted some of the liquids I liked on my old Mini, weren’t as good on the new X, so expect to experiment a little with new liquids before you find ones you like again. 50/50 and 60/40 work a treat, but it struggles with 80/20…

    All round though I’ve been nothing but impressed with the X. aspire have just released a 4ml upgrade kit for it as well/


    • I got on well with this for a mouth to lung tank, I didn’t personally have any issues with the drip tip getting too hot either. Thanks for sharing your experience though!

  7. I have been waiting for a new MTL suitable tank, so after all I’ve read this is one. Nice!
    2ml is not much, but if you don’t go subohm, it will last you a while.
    I like the new design, even if the typical Nautilus style isn’t recognizable at first sight anymore.

    • Hey Bob, Coils are replacement only with the Nautilus X. No RBA’s. Thanks for pointing it out though, I will be sure to make this clear in the review!


  8. What the hell’s a mouth to lung tank? You keep making up new descriptions! I thought all the vapours in a tank end up in the lungs. Well at least all mine do!?

    • Haha.. I know there are a lot of terms in vaping, it’s a fairly new language! I didn’t make up up the term mouth to lung, however 🙂
      There are two main types of vaping. Mouth to Lung and direct lung inhales.
      Mouth to lung is taking vapour into your mouth first and then inhaling and direct lung is… Well, direct to lung!
      Direct lung inhales are what you generally get with sub ohm tank that have a wider drip tip and airflow. Tanks built for ‘Mouth To Lung’ have a narrower drip tip and tighter airflow.
      So, the question is Bob, are you mouth to lung or a direct lung inhaler?!


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