SMOK TFV12 Cloud Beast King Sub-Ohm Tank Review


by James Bickford

Updated: July 19, 2021

SMOK TFV12 desktop

Review Score: 91/100

Price Range:
Multi Colors
Size :
Works with:
  • Eliquids icon


  • Four coils included in the kit
  • High-temperature resistant
  • 510 Connection


  • Might leak through airholes
  • Quick heat up and cool down

Starting Price: $ 27.95

As the citizens of Pompeii said to each other on that fateful day when Mt. Etna started to rumble: “This is going to be big!” I think the product designers over at SMOKTech also had that catastrophic event in mind as the best way to manifest the awesome power of this tank visually since they slapped a picture of an erupting volcano onto the SMOK TFV12 Cloud Beast King box.

SMOK TFV12 desktop

Oh, SMOKTech, I had written you off entirely after the disaster that was the Cube II X. Its battery cover never wanted to stay on, and its LED light was more annoying than illuminating. But let the record show that I have always been a devotee of SMOK tanks like the Big Baby, and the previous incarnation of the TFV line, the SMOK TFV8.

I just can’t understand why the brilliance and audacity that SMOKTech puts into its tank doesn’t also get put into its box mods and vape pens. Although to be fair, the ProColor was a box mod that I could get behind.

SMOK TFV12 Cloud Beast King Features

SMOK TFV12 Cloud Beast Features Review

And now, the biggest of them all, the tank to end all tanks, the SMOK TFV12 Cloud Beast King features:

  • A 6ml tank capacity
  • Three coils options included in the kit
  • One of the coils being the eponymous 12-coiled, 350W vaping, 27mm in diameter, 0.12 ohms, vapor chucking volcano, the V12-T12
  • The other two coils are the 0.15ohm V12 X4 quadruple coil
  • And the 0.15ohm V12 Q4 quadruple coil

Box Contents

It’s rare that I mention the box design right off the bat, but in this case, it was warranted. So, you already know what’s on the box; here’s what’s inside:

  • One TFV12 SMOK tank
  • One V12-T12 0.12ohm 12-coil atomizer
  • One V12-X4 0.15ohm 4-coil atomizer
  • One V12-Q4 0.15ohm 4-coil atomizer
  • One extra glass tube
  • One instruction book
  • Spare parts

First Impressions

SMOK TFV12 Cloud Beast First Impressions Review

Well, maybe this section should be called Second Impressions. I mean, 12-coils! Who does that?! Apparently, the Chinese. The SMOK TFV12 is incredibly tall at 70mm, and the rest of the dimensions are gigantic, but funnily enough, each part has different measurements.

The atomizer base that you screw onto your box mod is 25mm, but the diameter of the glass tube is closer to 27mm. And the width of the top cap is a beefy 28mm.

So this tank is not uniform, which means particular attention was paid to each piece individually, but the finished product still works together as a unit. This kind of design strategy denotes an impressive concentration of detail and manufacturing quality.

At the bottom of the tank, you have your standard gold-plated 510 connector pin. Above that, there are two very wide airflow vents that turn all the way around, and however far you turn one slot, the slot on the other side follows, so it’s always equal.

Both the atomizer base and the top cap are incredibly well-threaded, with thick threads that make unscrewing them so comfortable. The chimney on the pre-installed V12-T12 coil has six juice portholes; the V12- shaped like lightning bolts, which was cool to see.

Underneath the Delrin mouthpiece is a broad vapor shaft that is also made of stainless steel. And one thing I liked about the top cap, which gets removed in the same way that most of SMOK’s top cap’s get removed – by sliding them off – but is then locked into place, by pushing it back into the groove.

Now, as much as I liked the performance of SMOK’s other tanks, I have had problems with leakage before, so I hope that doesn’t bring me down from my high (my high referring to how excited I am about testing out this tank, and nothing else).

Getting to the pre-installed V12-T12 coil, it looked like the inside of an old-school .38 special revolver, with six chambers organized in a circle. But, keep in mind that even though there are only six chambers, each chamber has two parallel build coils, so that’s why it ultimately comes out to 12.

All of the coils are wicked with organic cotton and feature Clapton coils, but the V12-Q4 features a single coil; a single coil, mind you, that is insanely wide and features a parallel build. The three coil options are what comes with the standard SMOK TFV12 kit, but there is also an RBA edition that features the V12-T12 and two rebuildable decks.

Vaping with the SMOK TFV12 Cloud Beast King

SMOK TFV12 Cloud Beast Vaping Review

Some things we know right away. The SMOK TFV12 is a sub-ohm tank, and the V12-T12, despite the twelve coils, and organic cotton wicks, even combined with the stainless steel vapor path, might not give off the best flavor profile.

What you will be getting are volcano-eruption style clouds that will blanket most of the Earth and ground all air traffic. With that said, cloud-chasers and other veteran vapers are going to love the V12-T12. For those of us who prefer a little more flavor with our vapor (yours truly, included) the other coil options might be your best bet.

The recommended vaping range on the V12-T12 goes as high as 350W. 350W!! Some laptop computers consume the same amount of energy and think about all that laptops do; with the V12-T12 all you’re doing is making vapor. But, hey, to each his own.

So, vaping with the V12-T12 didn’t give me any surprises: huge clouds, effortless draws, airflow vents wide open, and not such a great flavor profile. What you are tasting is the glycerin and some lesser notes of the flavoring, depending on what kind of juice your vaping.

I went with some Halo Belgian Cocoa with no nicotine content because the way these coils vape I imagine any nicotine would be so diffuse as to cause an instant seizure (kidding). I did get those bittersweet, chocolatey hits, but when I switched over to the V12-X4 or Q4, the clouds were great, but the flavor was much more present.

Even though you might be tempted to go further than the recommended range, I found that staying within the recommended range on the two quadruple coil options, which is between 90-160W in total (they each have more specific ranges) still resulted in a great-tasting vapor.

And those wattage ranges are where most box mods, save for a mech mod or something like the Wismec Reuleaux 300X or even SMOK’s own GX, can get concerning wattage range.

Comparing the Tank

There are just so many great sub-ohm tanks banging around out there. The TFV12 tries to best them all, although it doesn’t succeed; well, in some ways it does, in others, it doesn’t. But I immediately thought of another member of the sub-ohm tank royal family, the Uwell Crown sub-ohm tank when it came time to play the comparison game.

Sure, the SMOK TFV12 has three coil options, but so does the Crown, one of them being a temperature control option, a Nichrome coil, along with two sub-ohm coils. The TFV12 obviously has the bigger tank capacity, and you’re going to need it since it is an efficient e-juice killer.

The Crown has a decent 4ml capacity and is slimmer than the SMOK TFV12 and has an ergonomic design that is easy to grip, which is something that the TFV12 also has, ugh, this is going to be a tough one. So in the end, it comes down to performance. Based solely, on personal preference, I would have to give it to the Crown, as a whole, for the different coil options.

But, if I’m honest, it’s a tie. The V12-T12 may not be for me, but the other two coils, along with the RBA option that comes with the SMOK TFV12 do make for a customizable experience. As my 3rd grade gym teacher used to say, “Everyone’s a winner!”

SMOK TFV12 Cloud Beast King Specifications

SMOK TFV12 Cloud Beast King
E-Juice Capacity: 6ml
Body Material: 304 Stainless Steel
Drip Tip Material: Delrin
Tank Material: Pyrex (Borosilicate) Glass
Height: 2.75 Inches (70mm)
Diameter: 1.1 Inches (28mm)



  • 6 mL e-juice capacity
  • Four coils included in the kit
  • Excellent customizable sub-ohm performance
  • High-temperature resistant
  • 510 Connection
  • Top-fill with a lock button mechanism


  • Might leak through airholes
  • Quick heat up and cool down
  • Pretty heavy


The SMOK TFV12 is in a class by itself. It has an enormous tank capacity; it is well-machined with tiny details like the knurling and extra-thick O-Rings that support the larger picture, and of course, the star of the show is the twelve-headed beast that henceforth shall be known as Coilatron.

The TFV12 won’t disappoint cloud or flavor-heads; it has something for everyone, and that is definitely something worth applauding. SMOK could have gone in one direction and headed straight for cloud city, but they didn’t.

Published: December 1, 2017Updated: July 19, 2021

James Bickford

My way of understanding the significance of vaping came not only through the disruption of smoking but its effects on society as a whole. Now I bring people to vaping and bring vaping to people. I love using new gear, writing in-depth reviews and generally nerding out about vaping to like-minded people.


Leave a comment

2 comments on “SMOK TFV12 Cloud Beast King Sub-Ohm Tank Review

  • Sarah J Collins

    November 5, 2018 at 2:01 pm

    Horrible! I only bought the TFV12 back in June and it constantly leaks! Don’t bother trying to contact Smok for help because they gave me the run around back and forth through email for weeks. Waste of money! I will never buy another Smok product again.

  • Paul Berry

    March 25, 2018 at 2:08 pm

    I’m going to order mine tomorrow I think is such a beast of a sub tank just love it