Brand: Innokin

Coolfire Z50 Kit by Innokin

Sale price£43.99

Product Colour: Gunmetal


Coolfire Z50 Kit by Innokin.

An ergonomically designed kit perfectly suited to either a starter or an experienced vaper.

A powerful kit, great for everyday use, featuring the Coolfire Z50 box mod and the highly regarded Zlide tank. A 2100 mAh internal battery provides easily a day of vaping, and the maximum 50W capacity will easily satisfy. The Coolfire Z50 is capable of both mouth to lung and a restricted direct to lung vape. The Zlide tank has the simplest filling mechanism, simply push to open, and refill.

The newest in line in the incredibly popular Coolfire range, the Z50 will not disappoint. An easy to use interface, supported by a bright 0.69" display screen, clearly displaying vaping information. A solid 510 connection means you can switch your tank with ease if you choose to, compatible with 22mm and 24mm tanks.The Zlide tank with its wide range of coils, provides a great choice for vapers.


Hello everybody, Josh here with something new from Innokin, the Coolfire Z50 kit! Unlike other brands on the market, Innokin don't seem to bring as many products out these days so when they do it's really exciting. Innokin have been around since 2011 so they have an extensive range of devices dating back.

Going back to the humble beginnings, Innokin have had amazing success with their devices, mostly so with their Coolfire range, many of which I have had and still do to this day!

So with this being another Coolfire device, have Innokin carried on their great legacy with the Coolfire Z50 kit?

What's in the box:

  • Innokin Z50 Device
  • Innokin Zlide Tank (2ml)
  • Micro USB Cable
  • Spare Pyrex Glass Tank
  • Spare O-Rings
  • 2x 510 Drip Tips
  • 2x Coils 0.8Ω, 1.2Ω
  • Top Fill Port Gasket
  • Z50 Device Manual
  • Zlide Tank Manual

Available Colours:


  • Black
  • Stainless Steel
  • Gunmetal
  • Pink
  • Blue



Capacity – 2ml (TPD Compliant)

Coil Resistance – 0.2ohm - 3.5ohm

Output Wattage – 6W - 50W / 3.0V - 7.5V

Battery Capacity – 2100mAh (Internal)

Dimensions – 115mm x 33mm x 24mm (Including Tank)

Screen - 0.69" OLED Screen

Max Output - 20A

Charging: Micro USB

Device First Impressions


On first unboxing the Colfire Z50 kit, you're met with an impressive collection accessories and spare parts, from O-rings to drip tips there's definitely enough to keep you going. Although the packaging is rather basic the device really stands out.

Quality wise, the Coolfire Z50 continues the trend from Innokin, the first thing you notice besides the full itinerary of spare parts is the excellent build quality. The device itself is made from a sturdy zinc alloy with curved sides creating a comfortable ergonomic feel. Without fancy colour schemes, the Coolfire Z50 has a grown up feel about it and hasn't massively changed look wise since their amazing and humble beginnings.

For it's rather small size at 69.5mm x 33mm x 26mm, the Coolfire Z50 device is rather heavy with it's large 2100mAh inbuilt battery which is made to last. It also feels very solid which I imagine would withstand rough handling and a few drops here and there, although I didn't particularly test this.

The front of the device is very bright and clear with its 0.69" OLED display with adequate information displayed. The fire button alongside adjustable buttons are strong and clicky with no rattling or movement throughout the device itself.

The navigation on the Coolfire Z50 is rather simple which makes it very easy to change what you need;

3x Fire Button = On/Off

Fire Button + Up Button = Wattage Mode

Fire Button + Down Button = Voltage Mode

Up/Down Buttons = Adjust Wattage/Voltage

Up Button + Down Button = View Puff Count

Hold Up Button or Down Button = Unlock Wattage/Voltage Adjustment

Long Press Up Button + Down Button = Flip Screen

On the side of the device you'll find the Micro-USB port for both charging and firmware upgrades. It is a little disappointing to not see a Type-C port like other leading brands but it isn't a complete game changer for all. Overall it's nice to see that the quality and design on the Coolfire Z50 follows suit with the predecessors from Innokin, if not being even better.

With this excellent quality and feel throughout the device; Does the included Zlide MTL tank keep up or pull the kit back from being up there with the leading competitors.

Tank & How It Vapes


As highlighted, the Coolfire Z50 Kit comes with the Zlide MTL tank which takes the same coils as the Zenith tank, however the Zlide definitely seems a lot less chunky giving it a nicer looking design throughout.

Innokin have always seemed to market their devices at the beginner vaper and the Coolfire Z50 Kit is no exception as the Zlide tank is obviously created for the MTL vape audience. The finish and design of the tank fit seamlessly with the device and creates a rather appealing yet bulky MTL device.

The tank itself comes apart very easily and everything appears as well built as the device. This makes changing the coil easy too and with smooth strong feeling threads there is little chance of threading the tank.

One thing that is different to other tanks on the market is the childproof protection Innokin have implemented on the Zlide. The top filling port can not be simply accessed and requires the drip tip to be removed beforehand, see below.

Refilling the Tank

  • Remove Drip Tip
  • Slide Top to One Side
  • Add Your Favourite E-Liquid From Royal Flush Vape
  • Slide Top Back Into Place
  • Re-Insert Drip Tip
  • Wait Around 5 Minutes For Adequate Saturation

1.2ohm Coil In Depth Review

I began testing the coils of the Zlide tank with the pre-installed 1.2ohm coil. With this being a MTL kit, I used Watermelon Strawberry Bubblegum nic salts by The Salt Stuff for both coils. The 1.2ohm coil has a recommended wattage range of 10W - 14W.

Starting the test at the lower end of the scale around 10W, the flavour was rather muted with a traditional Mouth To Lung (MTL) vape all round. It wasn't until the top end of the recommended at 14W that the flavour started to come through to my liking. Although saying this, the flavour was rather cool and not as warm as I would have liked. This would work perfectly for those who prefer a cooler vape, in particular menthol or fruit flavours. The watermelon and bubblegum really came through but the Strawberry was sort of lost.

With the airflow at the tightest possible selection and the wattage still up at 14W, you can get a decent jump in flavour and the full range of flavour from the nic salt I was using really did come through to create a pleasant all round MTL vape. I think that I'm so used to vaping on pod kits and sub-ohm devices that I have become used to a warmer vape, especially with my love of dessert and custard short fill e-liquids.

0.8ohm Coil In Depth Review

The recommended wattage for the 0.8ohm coil is between 15W - 18W. As highlighted before, I really do prefer a warmer vape and this really did deliver. Starting at the lower end of 15W with the same Watermelon Strawberry Bubblegum nic salts by The Salt Stuff, the flavour was much more there than on the 1.2ohm coil, with signs of improvement.

At 18W I found the flavours became merged together and created a much warmer vape, especially when compared to the other coil Innokin provide straight out the box. Surprisingly, it was right in the middle around 17W that I found the sweet spot on the 0.8ohm coil. At this setting with the airflow at half, I got a really pleasant MTL vape with the full flavour profile of The Salt Stuff flavours merging really well together.

Final Thoughts


Overall Innokin have managed to carry on their excellent build quality in their Coolfire range to the Coolfire Z50 kit. The device is very ergonomic creating a nice feel all round, it's a bit of a shame they haven't utilised Type-C charging capabilities when their competitors seem to be taking this route but it doesn't make the kit fall behind.

With an excellent MTL tank thanks to the Zlide, the full kit is perfect for those on their first steps into the vaping world and for those who prefer a MTL vape and want a device to last throughout the day.

My love for Innokin has always remained throughout my own personal vaping journey although this isn't particularity the kit for me as I've expanded further into the love of Direct To Lung (DTL) devices and sub-ohm kits in general.

Review Scores

Battery Life: 4/5

Flavour: 4/5

Pod Capacity: 3/5

Design: 4/5



  • Excellent Build Quality
  • Designed For MTL Vaping
  • Clear & Easy Navigable OLED Screen
  • Adjustable Airflow
  • Large In-built Battery
  • Full Selection of Spare Parts
  • Side Fill Top With Childproof Design
  • Simple to Operate



  • Not for DTL
  • No Type-C Charging (Can Take a While to Charge)
  • No Vent Holes
  • Non Removable Battery
  • Basic Navigation

TL;DR:Excellent Well Built MTL Device with 2100mAh Internal Battery with Micro USB Charging. With Childproof Zlide Tank and Multiple Coil Options, the Z50 Is a Great Starting Kit or for Those Who Love MTL Vaping.

Royal Mail Tracked 24®

1 Working Day Delivery Aim - Full tracking and two hour delivery window, notified by SMS and email.

Orders placed before 4:00pm (Mon - Fri) 12:00pm (Sat) will be dispatched the same day.

FREE on orders over £20


DPD Next Day

Next Working Day - Full tracking and one hour delivery window, notified by SMS and email.

Orders placed before 4:00pm (Mon - Fri) 1:00pm (Sat/Sun) will be dispatched the same day.

£2.99 over £20 / FREE over £60


DPD Saturday/Sunday

Guaranteed Saturday/Sunday delivery - Full tracking and one hour delivery window, notified by SMS and email.

Orders placed before 4:00pm Fri or 1:00pm Sat will be dispatched the same day.


DPD Pickup

Next Working Day - Collect from Over 6,500 locationsFull tracking and one hour delivery window, notified by SMS and email.

Orders placed before 4:00pm (Mon - Fri) 1:00pm (Sat/Sun) will be dispatched the same day.

FREE on orders over £60


European Union

Delivery from 3 to 7 days -  We are an EU IOSS Member, we ship directly to your door and take care of the VAT for orders under €150, which means no customs delays or VAT to pay on delivery.

Orders are shipped with Royal Mail International or Parcelforce Euro Priority with full tracking, insurance, signature on delivery, inflight delivery updates and pre-paid import duty.

£9.99 - £14.99

Payment & Security

American Express Google Pay Klarna Maestro Mastercard Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Customer Reviews

Based on 9 reviews
Honest review

This is my first vape
Easy to install for first timers - battery is good can last for 2 days with moderate usage - Easy to install liquids
Doesn't work that good with 0.8 coils keeps bubbling but works perfectly fine with 1.2 coils
Overall perfect experience.. would definitely recommend

Kaley Kirk
Fantastic buy

I buy this vape every time I shop with royal flush vape because it’s the best vile I’ve used. It’s light weight works like a breeze and love the colours you can buy it in. Had 3 different colours now. Never had any problems with this vape not working and holds its charge for a good length of time ***** would definitely recommend

A fantasist unit

I really don’t know much about vaping, this does everything you need. Really well built and sleek.

Good vape shame about battery life.

Ordered this vape as Innokin are a very good brand with easy to use features.

Gives a good smooth vape and the adjustable watt and voltage gets more flavour out of your juice.

However if you order this vape ensure you carry a charger with you as you will have to charge it at least once during the day as the battery drains quickly. Averages around 80 to 90 puffs to get battery to half power.

Great Vape Kit

Really good vape plenty of power even though hand held. 5 star only bought as I broke my other which was my fault!

You may also like

Recently viewed