SMOK OSUB 40w Kit Review UK

Here we take a look at and review the new SMOK OSUB 40w kit. Before we conducted the SMOK OSUB 40w Review we used the device solidly for 2 weeks prior to get a better feel of the device.

Disclaimer: We bought 2 of these 1 black/gold and 1 white out of our own pocket and all the thoughts are our own.

What is the SMOK OSUB 40w Kit

The OSUB 40w is basically a mini mod that is smaller than a pack of 10 Cigarettes, it has a very sleek and modern design and comes with a Helmet Mini tank. The internal battery is rated at 1350 mAh and capable of going to 40watts. The Helmet Mini Tank that comes with the kit is also TPD compliant.

The devices recommended use is for taking to parties, dinners etc but we have been using it as an everyday vape as it’s so bloody good.

Whats in the SMOK OSUB 40w Kit box

  • SMOK Osub Mod
  • SMOK Helmet Mini Tank
  • 1 X Pre-installed 0.4 Ohm Dual Coil Fused Clapton
  • 1 X 1.0Ohm Single Clapton Coil
  • 1 X UB Cable
  • 1 X User Manual

SMOK OSUB 40w Box Contents

SMOK OSUB 40w Colour Choices

The mod comes in 5 colours to choose from which are Black/Gold, Silver,Black/White, Black/Silver, Red/Silver

The best out of the bunch for us was the OSUB 40w in Black and Gold
SMOK OSUB 40w Colour Choices

SMOK OSUB 40w Specification

SMOK Osub Mod

  • 25mm X 35mm X 70mm
  • 1350mAh Battery
  • 40W Power Output in V@ Mode / Max 50W in TC Mode
  • VW Resistance Range – 0.1-3.0 Ohm
  • TC Resistance Range – 0.06-3.0Ohm
  • Temp Range – 200-600˚F / 100-315˚C

SMOK Helmet Mini Tank

  • 2.0ml Capacity
  • 510 Thread
  • Top Fill
  • Child Lock Feature
  • V Shape Airflow Drip Tip


What is the battery life like on the OSUB 40w

Since the battery is only a 1350 mAh internal battery do not expect this to last a day if you SUB Ohming on the 0.4 ohm coil.

Vaping on the 0.4 ohm coil

We were vaping normally and at 35w on the 0.4 ohm coil and the mod lasted about 6-8hrs so expect to charge at least once a day. On the plus side charging the device from flat took about an hour and you can vape whilst the mod is charging so if you work in an office etc and have access to charge points it’s a worthy investment. On the other hand if your a builder expect to have this on charge on your Lunch break so it lasts.

Vaping on the 1.0 ohm coil

We used this coil at around 20 watts and found it would get us through the day (just) this was light/moderate vaping and by a light ex smoker.

How does the OSUB 40w Mod Perform

This Mini Mod goes up to 40w or you can use Temp mode which goes up to 600 degrees Fahrenheit or 315 degrees Celsius, we opted to stay in watts and vaped at 35w. Using the device was easy, and the fire button feels beautiful in your hand and pressing the fire button gives you satisfaction (this is hard to describe until you have used one)

The fire button is on the side and you basically press the side of the mod to fire, you can take off the plastic case where the fire button is as well and this reveals the USB charging port
SMOK OSUB fire button and USB

The Mod is super sleek and looks amazing, the menu is easy to use also, and by the normal 5 clicks of the power button this locks the mod. I will however say that YOU MUST always lock this mod when not in use, if you don’t this mod will be firing off in your pocket all day as the way it’s designed it is very easy to fire the device. I sometimes fire the device by accident just by picking it up.

Overall the mod performs as expected.

How does the Helmet Mini Perform

The Helmet Mini surprised us and the flavour and cloud production from this tank was excellent, we vaped a variety of eLiquids and all performed beyond our expectations from this mini mod. The Helmet Mini comes with an eLiquid capacity of only 2ml so make sure you have juice to hand. It is also a TPD compliant tank and has a childproof screw on top. You have to push the tank head down to open and refill.

How to fill the Helmet Mini TankThe Helmet tank is also leak proof (unless your an idiot like us) and do not tighten the tank correctly. We found sometimes you think you have tightened the tank back together but rarely the thread on the tank kind of cross threads and you think it is done up correctly but it isn’t so be careful of that.

SMOK Helmet Mini ColoursI do however have to say on occasions the tank would gurgle and seem to get flooded by juice, we are not sure if this is just us and a 1 off but we will update this part the more we use the tank.

Overall Thoughts of the SMOK OSUB 40w Kit

9 Total Score
Best Mini Mod on the Market

I would honestly recommend this mod and tank to everyone, the design and build quality is excellent, it charges in around an hour and you can vape whilst charging. The only thing you have to remember is to lock it when not in use and you won't go wrong. Also the tank is excellent, price is good at around £40, what more can i say, just go and buy one, you won't be disappointed.

Ease of Use
Clouds and Flavour
  • Great Design
  • Fits easily in your pocket
  • Good Price
  • Great Flavour
  • Leak Proof Tank
  • Battery Life
  • 2ml Tank Capacity
  • easy to fire in pocket
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