The UD Simba tank is a newly designed tank that features a porous ceramic, rather than cotton, wick that lasts much longer and is more resistant to dry burning.

It doubles up as an RTA, with a rebuildable deck for making your own coils, and you can use use pre built stock coil heads as well.UD Simba Review

There’s a 4.5ml juice capacity featuring juice flow control, large adjustable airflow and anti spit back mesh included to guard against spit back.

UD have a great track record with their atomizers and the Simba definitely looks interesting!

Kit contents

  • 1 x UD Simba Tank – 4.5ml (pre-installed 0.5ohm SS316L SCC)
  • 1 x 0.5ohm Kanthal A1 Ceramic cotton coil (CCC)
  • 1 x RBA head and spare parts
  • 1 x Pyrex Glass tank

Key Features

  • Dimensions: 49mm x 22mm (Not including Drip tip and Threads)
  • 22mm Diameter
  • 510 Threaded
  • Top Fill Design
  • 4.5ml Tank Capacity
  • Airflow Control Valve
  • Juice Flow Control Valve
  • SS304 Stainless Steel Construction
  • Anti Spit-back Mesh
  • Glass Tank
  • Condensation Collection Ring
  • Solid Ceramic Coil (SCC)
  • Included RBA Deck allows you to build your own coils
  • RBA Deck supports both dual and single coil installations
  • 510 Drip tip Compatible
  • Compatible with Goliath Coils

Build Quality and Airflow

The UD Simba is manufactured from 304 Grade stainless steel and it also has a glass tank section, with a spare handily included in the box. The UD Simba is a top filling tank, so you screw off the top cap and you have two very large juice filling holes to fill your tank up with.UD Simba review

There is juice flow control, so you will want to rotate the tank to close this off when filling the tank, and open it back up again when in use.

One thing I did find out was that if I left the juice flow control open when I wasn’t using the tank, it would have a tendency to leak my whole tank of juice out, so it is best practice to shut it off when not in use!UD Simba tank airflow

The UD Simba can be used with pre built coil heads, and it can also be used with an RBA deck as well if you wish to build your own coils.

Switching between the two styles is easy, as the tank screws away nicely to allow you to switch between the different coil types that are on offer for this tank.Ud Simba Vape Tank review

The airflow with the UD Simba is a really interesting and unique system. You have a traditional airflow control ring found at the base, which you can adjust, however airflow is also controlled via rotating the drip tip, so you can finely tune the airflow even further.UD Simba Sub Ohm Tank

You can close down or open up the airflow further through the drip tip, and also adjust the airflow control ring at the same time. It opens up a lot of different possibilities.

How Does The UD Simba Tank Perform?

SS316 Ceramic Coil

The coil head that comes pre-installed with this tank is a dual coil set up, with SS316 stainless steel dual coils wicked with Japanese cotton and surrounded with ceramic.Youde (UD) Simba coils

The flavor with these coils really is outrageously good in the 40-50w range, a nice warm vape as well and there is plenty of vapour.

As a bonus, if you have a mod that supports temperature control with stainless steel 316, then this coil will be compatible.

Kanthal Ceramic Coil

Included in the box is a 0.5 ohm kanthal ceramic coil, and this coil head was even better for flavor!Youde Simba Kanthal coil

At 35-40w the flavor of my e liquid was incredibly smooth and tasty, again there was loads of vapor as well. With these coil heads having a ceramic coil, the coil heads last much longer than traditional cotton wicked coils, and are much more heat resistant too, preventing dry burning issues.

Single Coil RBA

Finally you also get a single coil RBA deck as well.

This is a single coil RBA with two posts and a ceramic single coil adapter on one side. It’s really easy to build on, part in thanks to the large post holes and the large juice channels on the side of the coil.UD Simba Review

If you are a beginner shouldn’t have too much of a problem with this. You can also red more about this with our guide to RBA’s for beginners.

This tank gets through a lot of juice!

The juice feed holes are huge on this tank and it wicks juice very quickly. That being said, it really is an exceptional wicker, I haven’t encountered a single wicking issue even with max VG liquids.

What I Liked

The lifespan of the ceramic wick coil heads is exceptional. These really do last and last, and mine still tastes as good as it did when I first got it out of the packet. This will certainly save you money on buying expensive pre built coil heads!

The inclusion of an RBA deck is a great move. It’s easy to use and will last even longer than the pre built heads, as you can utilize your own builds as and when you need to.

The performance of this tank really is excellent. The e juice flavor comes through crisp and pure, and you get loads of vapor to match as well. It’s become one of my favorite sub ohm tanks.

What I Didn’t Like

The airflow control. I found that when not in use, this had to be shut off at all times otherwise the Simba would dump out my tank of juice. It’s easy to forget to shut this off when not using it!

The tank is a really nice looker indeed, however I did feel like it felt a little lightweight and possibly wouldn’t survive being dropped! The finish was quite prone to picking up scratches when being carried around in my pocket.

The ceramic coil heads get through an awful lot of e juice, and quickly too. Even at 40w this tank did need refilling often!

Final UD Simba Ceramic Tank Review Verdict

Overall, the UD Simba tank is one of the best releases the company have come out with in my opinion.

There’s excellent flavor and vapor provided, and the ceramic wick coils last for ages before needing to be replaced. I’m a couple of weeks into using the ceramic wick coil and it’s still going strong!

The options to use an RBA deck and stock coils are great, as this makes the tank appeal to those that build and those that can’t or don’t wish to.

The build quality is great and the performance of this tank shows that you don’t need loads of power for top results.


  • Ceramic coil heads last for ages
  • Easy to swap out between pre built coil heads and the RBA deck
  • Easy to use top filling system
  • 4.5ml capacity
  • Really nice looking tank
  • Very competitive price
  • Excellent flavor
  • Big clouds


  • Although the tank looks nice, it feels lightweight
  • Leaks badly when the juice flow control is left open
  • Ceramic coil heads get through a lot of juice


Build Quality
Vapor Volume
Been vaping full time for three and a half years, started on cigalikes for a fair while then curiosity got the better of me and I moved onto an ego/ce5 set up after, a month or two later I was seeing people walking around with these interesting shiny tubes and I thought 'I gotta get one of those'. Before I knew it a trip down to my local B&M got me my first VW mod, an Innokin SVD, paired with an iClear 30, and I was hooked. Soon after that I was jumping to VW mods both box and tube shaped, before I then made the jump to rebuilding and thus sub ohming, with my first RDA and mech mod. These days I'm still preferring mechanical mods, but using VW mods with both RDA's and tanks alike whilst on the move, most importantly I am still loving vaping!


  1. love this tank – vape it with the RBA as singlecoil. Topfill is great – big enough to fill the VD out of the Bottle without a Dropper, LC close good, AFC is good.. Could have a little bit more place to build – a 2,5mm Coil is the biggest i get into the deck without “Atomizer Short”..


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