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 45 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 a few years ago and have started to move up in the shiny shiny gadget department and love vaping! I have finally stopped smoking as of June 2019 and that is all thanks to vaping! 20mg Nicotine Salts are my hero! Oh and I am partial to a nice pod mod!


  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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