uwell crown 4 sub ohm tank preview

The Crown 4 Sub Ohm Tank By Uwell Previewed

The Uwell Crown 4 Sub Ohm tank is a new generation in the popular Crown range.

Uwell Crown 4 Tank & Mod Review Now Live

crown 4 poster

I know Uwell can do flavour – the Nunchaku tank is in my top 5 best sub ohm tanks.

The original Uwell Crown tank was a beauty and many still say this is one of their favourites. However later versions the Crown 2 and Crown 3 didn’t quite live up to the original.

So let’s hope the Crown 4 has regained the throne!crown 4 banner

There are 4 coil options to choose from:

  • Dual SS904L Coil 0.2ohm – 70-80W
  • Dual SS904L Coil 0.4ohm – 60-70W
  • SS304 UN1 coil 0.25ohm – 55-65W
  • FeCrAl (Kanthal) UN2 Coil 0.23ohm – 60-70W

From what I can see the coils are only for the Crown 4 – as previous versions had coils which were not compatible with other Uwell tanks.

uwell un1 coilThe UN1 is a double helix mesh style coil and the SS904L coils are made from a higher quality of Stainless Steel commonly used in luxury watches!uwell ss904l coils

The base of the tank has a condensate collector which will heat up and re-vaporise the condensate apparently making it leak free and self cleaning.

The bubble glass gives a tank capacity of 6ml or the included straight glass will give you 5ml.crown 4 capacity

There is a top fill port accessed via the quarter turn to unscrew top cap.crown 4 top fill

The tank base houses the adjustable airflow control ring.crown 4 components

Here is an Intro video from Uwell showing the Crown 4 Tank.

There are 6 colours to choose from – Black, Silver, Blue, Green, Iridescent and Purple.crown 4 colours

Kit Includes

  • Uwell Crown 4 Sub Ohm Tank
  • Spare glass
  • 0.4ohm coil
  • 0.2ohm coil
  • Replacement O-rings
  • Drip tip cover
  • User manual

crown 4 contents

Uwell Crown 4 Sub Ohm Tank Specs

  • Size: 28×54.8mm
  • Capacity: 6ml (5ml with straight glass)
  • Material: Stainless steel, glass, silicone
  • 4 coil options
  • Self cleaning condensation holder
  • Quick unscrew top fill cap
  • Hand polished
  • Adjustable airflow

crown 4 specsI do hope the Uwell Monarch has got its Mojo back and is fit to reign supreme once again!

Will you be buying the Uwell Crown 4 Sub Ohm Tank? Let me know what you think in the comments below!

My name is Michelle - I am 43 and an engineer and Technical Author by trade. I started vaping many years ago in the days of Tornado tanks, Ego batteries and Variable Voltage. My journey in vaping began again last year and have started to move up in the shiny shiny gadget department and love vaping! I have finally stopped smoking as of February 2018 and that is all thanks to vaping! I am a huge dog lover and volunteer for my local dog rescue.


  1. I have the Sapphire blue Crown 4 and let me tell you it is fit for a Queen! My coils in my other vapes usually go out in 3 to 5 days, this coil has lasted 3 times longer! It has a very good flavour. I love this vape it’s well worth the money!


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