The Smok X-Priv Baby kit is as like most of Smok‘s recent products a smaller version of an existing kit.

So this is the “Baby” version of the Smok X-Priv kit which I recently reviewed and really loved.

What is different about the “Baby” version then…

For a start the Baby version is smaller, this has an internal battery which has a 2300mAh capacity – the big X-Priv uses two removable batteries. This can output only 80W in comparison to the larger version outputting 225W.xpriv baby in hand

Otherwise the mod is very similar – you still get the huge 2 inch colour screen which I absolutely love and the menu and user interface is again the same as the big version.xpriv baby components

The kit also includes the TFV12 Prince Big Baby tank in the same colour as the mod.

There are 7 colours to choose from – Matte Black, Prism Gold, Prism Blue, Prism Chrome, Prism Gun Metal, Auto Pink and Prism Rainbow.

I will admit to not being a Smok fan apart from the excellent X-Priv mod – which blew me away. However I haven’t liked the flavour from a single Smok tank – they seem to be focused on vapour volume rather than taste. Can this combo change my mind? Will Smok surprise me again? So many questions! Let me answer them!

What’s In The Box

  • Smok X-Priv Baby mod
  • TFV12 Big Baby Prince tank
  • V8 Baby-Q2 coil (0.4ohm dual coil) x2
  • Bubble glass (Standard version only)
  • USB cable
  • User manual
  • Spare parts

smok xpriv baby kit contents


Smok X-Priv Baby Mod Features

  • Size: 68x47x29mm
  • Power: 1-80W
  • Battery: Internal 2300mAh
  • Display: 2.0in HD colour screen
  • Output voltage: 0.5-9V
  • Resistance Range: 0.1 to 2.5 ohm (VW) / 0.05-2ohm (TC)
  • Temperature Control Output 200-600° F /100℃-315℃
  • Firmware Upgradeable
  • 6-colour modes display
  • Weight: 188g

x-priv baby specs

Smok TFV12 Big Baby Prince Specs

  • Size: 28x55mm (Standard version) / 24.5×55 (EU version)
  • Capacity: 6ml (Standard version) / 2ml (EU version)
  • Top fill
  • Bottom adjustable airflow
  • Stainless steel body
  • 510 thread

TFV12 big baby prince xpriv specs

Build Quality & Design

This is in fact beautiful. You get the huge screen and design features I bloody loved on the big version. But they look cuter!xpriv baby prism blue

The packaging was excellent and there were protective films on the front and back of the mod so it arrived in pristine condition.xpriv baby size with pen

I was sent the Prism Blue kit with the standard 6ml TFV12 Big Baby Prince tank in a matching blue to the mod.x-priv baby tfv12 big baby prince

This is super shiny and even better looking in real life.

The rear of the mod has the same black and glitter honeycomb pattern as the large X-Priv and it catches the light beautifully.X-priv baby rear

The metal parts of the mod and tank all match in a mirror dark blue colour.x-priv baby side view

On top of the TFV12 Big Baby Prince tank is a matching Cobra Drip tip with glitter accents too. Even the tank is pretty!tfv12 big baby prince blue

On the right side of the mod is a long fire button – almost a fire bar but it doesn’t take up the whole side of the mod like the bigger version.xpriv baby fire button

The screen takes up the whole front of the mod and is as clear and bright as a summer morning. There are two very small adjustment buttons on the base of the screen.

The 510 connector on the top of the mod is on the left side – not centred.x-priv baby top view

A battery vent and USB charging port are on the base of the mod. I’m not looking forward to tipping this over to charge – after the leaking issues our Dean experienced using the Smok Mag Baby kit with the Baby version of this tank….x-priv baby bottom view

As predicted the tank does leak a bit when turned on its side for charging, so close the airflow slots and put a tissue under the tank. However that is the only time the tank leaked – which again is a shock.smok tfv12 big baby prince

How Does the Smok X-Priv Baby Kit Perform?

Basic operation

The menu and user interface is exactly the same as a lot of the Smok mods use now. I am not a fan to be honest as it takes a bit of getting used to.

  • To turn on – press the fire button quickly 5 times.
  • To turn off – either enter the menu system to the last page and select the off icon or press the fire button 5 times – this will show “Locked” then hold down the fire button until the mod switches off.
  • When the mod is switched on 5 fire button presses will lock or unlock the keys.
  • 3 clicks of the fire button to enter the menu.
  • The function will be highlighted. To change the value use the adjustment buttons.
  • Move to the next function hold down the fire button.
  • Move to the next screen do a short press of the fire button.

Whilst in the menu system there are several screens…x-priv baby menu screens

  • The first screen regards the power mode, preheats and setting.
  • The second screen is for the puff counter to reset.
  • The third screen is the display settings for the colour theme, timeout and lock setting.
  • The fourth screen is the power off screen.

How To Charge The Smok X-Priv Baby

  • Using the included USB cable plug the small end into the port on the base of the mod.x-priv baby charging
  • Plug the larger end into a suitable USB outlet.
  • The charging progress is shown on the screen.

The included USB charging cable – looks like any other Micro USB cable. However it is not…

The charging socket is quite deeply set into the body of the mod and other cables have connections which are not quite long enough to make full contact in the socket. See my photo if you don’t get me – the Smok X-Priv Baby cable is the black one on the left.x-priv baby charger

Not a massive deal however if you are used to just using a USB cable you already have in your car or in another socket in the house you won’t be able to use that with this mod.xpriv baby charging port

I found on my PC (which might not be outputting much more than 0.5A) it took 3.5 hours to charge from empty. Phew it takes a while!

Smok TFV12 Big Baby Prince Tank

Well as I always say I hate the Smok naming conventions.

The TFV12 tank range has so many variants all using different coil heads…

Then on top of that some tanks have a Standard version and TPD Compliant EU version – which again use different coils.

So good luck in knowing which coils to buy for your tank…

In this kit the TFV12 Big Baby prince uses the V8 Baby range of coils – even more to remember. Luckily there is only one version of the EU and Standard and that is the 0.4ohm.v8 baby prince coils

How To Fill The Smok TFV12 Big Baby Prince Tank

  • This has a child lock button.
  • Press the button whilst pushing the top cap in the direction of the arrow.tfv12 big baby prince fill button
  • Add e-liquid through the filling slot whilst watching the level in the tank window.tfv12 big baby prince port
  • Slide the cap back into position – it should “click”. If it doesn’t press it down slightly whilst pushing.

How To Change The Coil Head

  • Turn the tank upside down.
  • Unscrew the base of the tank.
  • If there is a coil installed unscrew this from the base of the tank.tfv12 bigbaby prince coil removed
  • Screw the new coil into the tank base.tfv12 big baby prince coil installed
  • Add a few drops of e-liquid to the bits of cotton you can see.
  • Replace the tank base onto the tank.
  • Fill the tank as described above and leave to stand for 10 minutes to allow the new coil head to soak up the e-liquid.
  • Check the liquid level and refill if required before vaping as the new coil can soak up almost a tankfull of liquid – especially on the 2ml tank!

Flavour & Cloud Production

We have the 0.4ohm dual coil TFV8 Baby Q2 coil head installed- you get 2 of these in the kit. Recommended 40-80W and best at 55-65W.

I used an 80% VG E-liquid – Stika Bombz Fruit Salad which has 6mg Nicotine and is my usual all day e-liquid. If you are not sure what VG means read our guide to PG and VG in E-liquid.

So I started off at 50W with the airflow half open. Ok it works but there is a very “cottony” taste. Quite a good amount of vapour though.

At 55W more of the same really, at 60W some flavour starting to come through. At 65W this is a lot better but still that predominant cotton taste. I have left this tank for about 30 mins to prime and had to refill it as the coil soaked up most of the e-liquid I first put in the tank.

I might be asking for trouble but hey I went up to 70W, 75W and 80W to see if I could get a bit of flavour out of this. The maximum output of the mod is 80W. There is more flavour it has to be said.X-priv baby in hand

The airflow can be fully closed off to nothing. Fully open the airflow is pretty much as open as breathing – no resistance at all. The vapour production in the fully open setting is huge.

After the coil had a few tank fulls of e-liquid through it the flavour had improved a lot. I could run this tank on the X-Priv Baby mod at 65-70W and got good performance.

So far we have 7 days of use on this coil (reading 1153 puffs on the counter – I did do a few on this tank on another mod so it’s higher than that) – which must be a record and it still tastes and performs well!

In the past I have had a similar experience to most Smok users – crap coil life – the Smok Stick AIO managed 2 days – so this has been a total shock!

Smok X-Priv Baby Mod Performance

The main issue is having to run the included tank at 65-70W. This near the top limit of the mod’s output.

I would say the mod is slightly underpowered, I felt like the tank performed the same on another mod at 10W lower. So the X-Priv Baby is slightly underpowered.

Using this with the Vaporesso NRG tank with CCELL coil – I usually run at 30W on the Revenger Mini mod – the X-Priv Baby had to be set to 37W to get the same performance.

The mod itself apart from the annoying menu system and power issue has been perfect. Worked every time I picked it up and is beautiful.

Battery Life

Using this mod at 67W as expected the battery life wasn’t great. I got 3.5 hours of reasonably heavy vaping.

Just as a trial I put the NRG tank with CCELL coil on here from the Vaporesso Revenger Mini kit. Running at 37W I got around 7 hours of vaping.


  • Beautiful looking kit – mod and tank are stunning
  • Small and lovely to hold
  • Well packaged
  • Huge vapour production
  • Once the coils have “broken in” the flavour and vapour were surprisingly good!
  • Robust kit – I have been using this for 2 weeks, its been rattling around in handbag and dropped and still looks pristine.


  • Mod is underpowered for the tank supplied – the tank needs around 65-70W to perform
  • Confusing tank naming conventions – TFV12 Big Baby Prince and uses V8 Baby coils…
  • The coil heads took several tank fulls of e-liquid to get a good flavour.
  • USB port on the bottom of the mod – makes the tank leak.
  • Can only use supplied USB cable
  • Takes 3.5 hours roughly to charge
  • Mod seems to be slightly underpowered

Final Review Verdict

The supplied coils took a few tank fulls to kick in – after about 3 tank fulls the flavour was wonderful – way surpassing the previous Smok tanks I have used. In fact way better than the full size TFV12 Prince I used.

This tank would be perfect on a bigger capacity mod – the large X-Priv for example.

Don’t get me wrong this is a lovely kit but the tank needs a more powerful mod to make this more practical.

Personally I would choose a tank which runs at say 40W to put on this mod – this mod and the CCELL coil in the Vaporesso NRG tank was a perfect match. I would use the TFV12 Big Baby Prince on a more powerful mod.

I have been using the mod for over 2 weeks, with the supplied tank and the Vaporesso tank and it is still pristine apart from fingerprints! It has been rattling about in my car, handbag, been dropped multiple times and had e-liquid spills and still perfect. Well done Smok!

Like many of you reading this I was very sceptical about this kit and Smok in general – so I understand you might think I am painting a very rosy picture here! However this little kit has been for me a real cracker. I gave it to a few people at Vape Collective to try and everyone liked the mod and a few were surprised with the tank.

I wish Smok would slow down – stop chucking out 30 kits a week and just concentrate on what they are good at. The X-Priv and X-Priv Baby are what they do well.

Shell Ecigclick Photo
Michelle Jones

I am an engineer and Technical Author by trade. My journey in vaping began around 2016, in the days of Tornado tanks, Ego batteries and Variable Voltage. It took me a few years to fully quit smoking but I finally stopped in 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 and Bubblegum e-liquid! I have reported on the latest news on Ecigclick since 2017 and love being part of this great team! My passion for Tobacco Harm Reduction has also led me to becoming a Trustee for the NNA (New Nicotine Alliance) aiding in Advocacy

Build quality
Ease of use
Replace if lost or damaged
I am an engineer and Technical Author by trade. My journey in vaping began around 2016, in the days of Tornado tanks, Ego batteries and Variable Voltage. It took me a few years to fully quit smoking but I finally stopped in 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 and Bubblegum e-liquid! I have reported on the latest news on Ecigclick since 2017 and love being part of this great team! My passion for Tobacco Harm Reduction has also led me to becoming a Trustee for the NNA (New Nicotine Alliance) aiding in Advocacy
smok-x-priv-baby-kit-reviewA slightly underpowered mod for this tank in my opinion. Both perform great but this mod would suit a tank which is happy at 40-50W to make the battery last longer. The tank was a huge surprise and has to be the best flavour I have ever had from a Smok tank - EVER! This is what Smok do well - this and the large X-Priv - so I wish they would focus more on products like this which perform wonderfully and stop chucking out 30 terrible kits a week.


  1. Hi, I am struggling to find compatible coils for my TFV12 Big Baby Prince Tank, is there an rba coil that is available for it? Which coils should I try to get? Is the x-priv baby mod compatible with any vaporesso gtx coil using tank? Thank you for the article, it helped me a lot.

    • There are a few more versions of the V8 Baby Coils since I wrote that – apparently there is also an RBA..

      Smok V8 Baby Coils

      This was taken from a handy page on the Smok Website –

      As the mod has a 510 connection you can use any tank you want with it! Have a look at our “Best Tanks” page for ideas –

      Just check the output required for the tank is possible from the mod (80W max).

      A minor concern is the size of the tank base – if this is a larger diameter than the width of the mod (which is 29mm) you might have some “overhang”. This just looks weird though and will not alter the tank performance. Plus the majority of tanks are a smaller diameter than 29mm.

  2. Meu nome é Valeria estou usando o Smok há 2 dias e travou e aparece na tela a palavra “look” e não consigo mais utilizá-lo e nem resolver o problema. Preciso de ajuda.

    • Hi there I typed your comment into Google Translate and you have a problem that the buttons are locked?
      If so usually press the fire button 5 times quickly should unlock – hope this helps?


Please enter your comment!
Please enter your name here