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Uwell Caliburn GZ2 Review

By Peach Atkinson 29th October 2023 4 Mins



  • Battery Capacity: 850mAh
  • Integrated Charging: USB C
  • Coil Types: Mesh Coil
  • Resistance: 0.8ohm/1.2ohm
  • Pod Capacity : 2ml | Weight : 47g
  • Dimensions: 28.9mm*22.9mm*72.5mm
  • Max Output: 17W
  • Draw Activated | Adjustable Airflow

The iconic and well-loved Caliburn series from vaping giants, UWELL, has an interesting update for any pod lover. 

As a massive fan of the original Caliburn, the G2, and the KOKO – well, in fact, all of the ones I’ve tried over the years – I jumped at the chance to review this awesome bit of kit. 


Taking on a different shape to any I’ve tried before, the GZ2 is super comfortable to hold and this is immediately noticeable when you first pick up this rather small device. 

With a minuscule weight of 47g, this kit is super lightweight and doesn’t feel too bulky or cumbersome. 

Being a little more boxy in shape when compared to many of the previous iterations, I felt like this was definitely a welcomed change and something that gave this kit a bit of a refreshing feel. 

With the familiar, sleek and simple exterior, the GZ2 is completely devoid of buttons or screens, and working with a draw activated inhale, this kit relies solely on practicality and simplicity. 

The GZ2 does, however, feature a small viewing window to the side of the device, allowing users to easily see the volume of e-liquid in the pod itself, and therefore giving vapers the heads up on when to refill. 

For such a small device, the Caliburn GZ2 is remarkably sturdy and robust, sustaining just the smallest amount of cosmetic damage when I clumsily dropped it. 

Available in a bunch of attractive colours, the GZ2 boasts style and individuality as well as performance. 

Battery life

With a surprisingly hefty 850mAh integrated battery, the Caliburn GZ2 is charged remarkably quickly via USB C (with the cable included with the kit). 

Meaning not only will the battery last nearly a whole day of moderate vaping, but when it does run out, it only takes approximately 30-40mins or so to charge. 

Battery life is indicated quite stylishly via intensely bright lights lining the side of the device, red meaning less than 30%, blue meaning 30-60% and green being 60% – 100%. 

GZ2 vaping style

Offering MTL and RDTL vaping, the GZ2 works absolute wonders alongside thin consistency e-liquids and high nicotine strengths – another bonus for new vapers looking to quit smoking. 

The pods that are compatible with this device also feature a small wheel – allowing vapers to adjust the airflow to their chosen preference. 

What coils does the Caliburn GZ2 use?

The coils utilised in this kit are the Caliburn G mesh coils, and are available in 0.8ohms and 1.2ohms – and you can choose either to suit your liking. 

I found both offered intense throat hits and a smooth and satisfying flavour, something I have come to expect with the Caliburn Series. 

In my experience, the coils last me about a week or so before needing to be swapped out for fresh ones. 

With both coils bringing a short, sharp inhale, you can expect discreet and modest vapour production – no chances of huge, billowy clouds when exhaling. 

How to fill the pods

Filling the 2ml TPD compliant pods is as simple as can be – requiring users to simply pop the cap off, revealing a one way valve that fits nearly every e-liquid bottle tip. 

Being a top fill system, I noticed next to no leakage and minimal condensation build up.

How much does the Caliburn GZ2 cost?

With an RRP of about £20-£25, this kit is a no brainer – especially due to the build quality and user oriented performance. 

Final thoughts

Looking at this device on the whole, it is easy to appreciate that this kit will make a great choice for new vapers, as well as vapers who use high strength nicotine. It is built with simplicity in mind and performs reliably throughout. 

Discover more reviews from Vapouround

Enjoyed this review on the Uwell Caliburn GZ2 ? Why not take a look at our other vape hardware and e-liquid reviews by visiting the ‘review‘ section of the Vapouround website.

Topics: Pod Systems, Recommended, UWELL


About this author

Peach Atkinson

Peach is part of Vapouround Magazine's reviewing team, writing for the magazine and online. Peach currently works in the industry and has been a vaper for years. She made the switch to vaping after she became interested in stopping smoking. Peach understands how complicated the vape world can be for new vapers looking to quit smoking and so is proud to be able to provide crucial advice and information through her product reviews.