Since the release of the first product in the series back in 2018, the devices in the Caliburn series by Uwell have been the most popular refillable pod vapes on the market. Caliburn devices are so popular that the series has expanded rapidly since its introduction -- so if there's any drawback, it's the fact that you have so many choices available.
That's why we're going to explain them all -- every last Caliburn device that's ever been made.
Are you scratching your head trying to tell the difference between a Caliburn AZ3 and Caliburn GZ2? If so, this is the article for you. This is a complete guide to all of the Uwell Caliburn devices that have ever been on the market. Reading it, you’re going to learn what all of the letters in the model names actually mean, and you’re going to learn the differences between the individual models in each series. You’re also going to learn which pods and coils are compatible with the various devices. By the time you’re doing reading, you’ll know everything there is to know about Uwell Caliburn vapes and will understand which device is the best one for you.
What Do the Letters Mean in Uwell Caliburn Devices?
With vaping products that have been around as long as the Uwell Caliburn Series, the naming schemes for the devices may not always make a lot of sense. That’s definitely the case with Uwell Caliburn vapes. What’s the difference between the Uwell Caliburn G and Caliburn A devices? What about the Caliburn K series? Before we discuss the specific features of the individual devices, here’s an overview of what the letters actually mean. Once you understand Uwell’s naming conventions, you’ll see that the device names actually do follow a certain logic.
- Caliburn: This is the original device in the Uwell Caliburn series, and it uses a pod with a built-in coil. Although the original Caliburn is no longer in production, the basic design elements of this device have been carried forward with the Caliburn A series.
- Caliburn A Series: This series continues the basic design elements of the original Caliburn, utilizing the traditional vape pen shape and pods with built-in coils.
- Caliburn G Series: This series has the same vape pen shape as the Caliburn A series, but devices in the Caliburn G series have pods with replaceable coils except the Caliburn G3, which is a departure for this series.
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Caliburn K (Koko) Series: Devices in this series have a compact box shape instead of a narrow vape pen shape. As with the original Caliburn series, there are no longer any new devices bearing just the name “Caliburn K.” All new devices have either the “AK” or “GK” designations.
- Caliburn AK Series: Devices in the Caliburn AK series have a compact box shape and use pods with built-in coils.
- Caliburn GK Series: Devices in the Caliburn GK series have a compact box shape and use pods with replaceable coils.
- Caliburn S Series: The “S” designation indicates that the device comes with a side-filling pod rather than a top-filling pod. This designation applies only to devices in the Caliburn A series, and it doesn’t cause incompatibility with the other Caliburn A device from the same generation. For example, the Caliburn A3 and A3S pods are interchangeable with one another and work with both the Caliburn A3 and A3S devices.
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Caliburn Z (Zega) Series: Devices in the Caliburn Z series have a slightly squat shape that provides room for a larger battery cell. All devices in this series have either the “AZ” or “GZ” designation.
- Caliburn AZ Series: Devices in the Caliburn AZ series have a squat shape and use pods with built-in coils.
- Caliburn GZ Series: Devices in the Caliburn GZ series have a squat shape and use pods with replaceable coils.
- Caliburn X Series: The Caliburn X offers advanced features like variable wattage. At the time of writing, only one Caliburn X device has been produced. Some of its features have been added to other Caliburn products.
- Caliburn Tenet Series: Devices in the Caliburn Tenet series have a metallic steampunk aesthetic.
- Caliburn Ironfist Series: This device has a side-by-side design that’s unique among all Caliburn vapes.
Uwell Caliburn Pods: Compatibility List
If you’re worried about whether a box of Caliburn pods that you’ve found in your local vape shop will work with your device, you’ll find this pod compatibility guide useful.
- Caliburn Pods: Original Caliburn, Caliburn Koko
- Caliburn A2 Pods: Caliburn A2, Caliburn A2S, Caliburn AK2
- Caliburn A2S Pods: Caliburn A2, Caliburn A2S, Caliburn AK2
- Caliburn A3 Pods: Caliburn A3, Caliburn A3S, Caliburn AK3, Caliburn AZ3
- Caliburn A3S Pods: Caliburn A3, Caliburn A3S, Caliburn AK3, Caliburn AZ3
- Caliburn G Pods: Caliburn G, Caliburn Koko Prime, Caliburn Koko Prime Vision, Caliburn X
- Caliburn X Pods: Caliburn X
- Caliburn G2 Pods: Caliburn G2, Caliburn GZ2, Caliburn Tenet, Caliburn Tenet Koko
- Caliburn Ironfist Pods: Caliburn Ironfist
Uwell Caliburn Coils: Compatibility List
- Caliburn G Coils: Compatible with any device that uses the Caliburn G pod.
- Caliburn G2 Coils: Compatible with any device that uses the Caliburn G2 pod.
Uwell Caliburn A Series
With the compatibility information out of the way, we’ll continue our Uwell Caliburn guide with a list of every Uwell Caliburn device that has ever been created. Many of these devices are still in production today, so this section of our guide should be very helpful in helping you decide which one is the right fit for you.
Uwell Caliburn A devices are narrow in shape like traditional vape pens, and they use pods with built-in coils.
Uwell Caliburn (Original Device)
- Battery Capacity: 520 mAh
- Charging Port: Micro USB
- Coil Resistance: 1.4 ohm
- Operating Power: 11 watts
- Firing Style: Automatic and manual
The original Uwell Caliburn is effectively the first Uwell Caliburn A, since all devices in the Caliburn A series have essentially the same design. The original Caliburn is no longer in production today, but it was revolutionary at the time of its release because it was the first refillable pod system to feature the same type of coil that would be used in a full-sized vape tank. Before the Caliburn, pod systems had much smaller coils with silica wicks. They weren’t known for their flavor quality or vapor production. The Caliburn changed that forever.
Uwell Caliburn A2
- Battery Capacity: 520 mAh
- Charging Port: USB-C
- Coil Resistance: 0.9 ohm
- Operating Power: 15 watts
- Firing Style: Automatic and manual
The Uwell Caliburn A2 might have been called the Caliburn 2. By the time it was released, though, the Caliburn G was already out. So, Uwell went with the “G” and “A” monikers to signify devices with and without replaceable coils.
One of the biggest shortcomings of the original Caliburn was the fact that you couldn’t really see how much e-liquid was in the pod unless you removed the pod. The Caliburn A2 has a large window to eliminate that problem. The Caliburn A2 also features a redesigned pod with improved airflow and vapor production.
Uwell Caliburn A2S
- Battery Capacity: 520 mAh
- Charging Port: USB-C
- Coil Resistance: 1.2 ohm
- Operating Power: 15 watts
- Firing Style: Automatic only
The Uwell Caliburn A2S features a redesigned pod that has a side-mounted filling port and a translucent mouthpiece. It also has an updated visual design with an eye-catching LED light show. The Caliburn A2S also doesn’t have a fire button and uses puff-based firing only. Otherwise, it’s similar to the Caliburn A2, and the pods are interchangeable between the two devices.
Uwell Caliburn A3
- Battery Capacity: 520 mAh
- Charging Port: USB-C
- Coil Resistance: 1.0 ohm
- Operating Power: 13 watts
- Firing Style: Automatic and manual
The Uwell Caliburn A3 is an incremental upgrade over the previous model. It features a redesigned pod with improved flavor quality and a faster charging time of 15 minutes.
Uwell Caliburn A3S
- Battery Capacity: 520 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8 or 1.0 ohm
- Operating Power: 16 watts
- Firing Style: Automatic only
The Uwell Caliburn A3S has the same improvements as the Caliburn A3, but it uses a pod with a side filling hole. It also has a maximum power of 16 watts and offers increased vapor production.
Uwell Caliburn G Series
Uwell Caliburn G devices are narrow in shape like the devices in the Caliburn A series, but they have pods with replaceable rather than permanent coils except for the Caliburn G3, which is a departure for the series.
Uwell Caliburn G
- Battery Capacity: 690
- Charging Port: USB-C
- Coil Resistance: 0.8 ohm
- Operating Power: 18 watts
- Firing Style: Automatic and manual
The Uwell Caliburn G was the first Caliburn device to use a pod with replaceable coils. It’s difficult to find today since it’s now a few generations old. It was the first Caliburn device with adjustable airflow; you could change the airflow by removing and reversing the pod. The Caliburn G was also notable for having a significantly higher battery capacity and wattage than the original Caliburn.
Uwell Caliburn G2
- Battery Capacity: 750 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8 or 1.0 ohm
- Operating Power: 18 watts
- Firing Style: Automatic and manual
With the Uwell Caliburn G2, Uwell ditched the reversible pod of the Caliburn G and replaced it with a new pod that had an airflow control dial at the bottom. The Caliburn G2 uses a haptic vibration system to keep you apprised of what’s going on with the device. It also has a greater battery capacity than the Caliburn G.
Uwell Caliburn G3
- Battery Capacity: 900 mAh
- Charging Port: USB-C
- Coil Resistance: 0.6, 0.9 or 1.2 ohm
- Operating Power: 25 watts
- Firing Style: Automatic or manual
Almost everything about the Uwell Caliburn G3 represents a major departure from what came before. Instead of using a pod with a replaceable coil, the Caliburn G3 has three different pods that all have built-in coils. The Caliburn G3 also features a much larger battery and full wattage adjustment up to a maximum power of 25 watts. Although there’s no doubt that the Caliburn G3 offers dramatically more power than the previous Caliburn G devices, it remains to be seen whether the public will accept a Caliburn G device without replaceable coils.
Uwell Caliburn K (Koko) Series
After the release of the original Uwell Caliburn, competing companies began to release pod systems with a new mini box shape that proved extremely popular with the public. Uwell responded with the release of the Caliburn Koko, which had the new box shape but also featured the technologies that had made the Caliburn series so popular with the public. The Caliburn K series has been very successful.
Uwell Caliburn Koko
- Battery Capacity: 520 mAh
- Charging Port: Micro USB
- Coil Resistance: 1.2 ohm
- Operating Power: 11 watts
- Firing Style: Automatic only
The Uwell Caliburn Koko is basically the same device as the original Uwell Caliburn aside from the difference in shape. Although the Caliburn Koko comes with a pod that’s red rather than black at the base, pods for the original Caliburn and the Caliburn Koko are interchangeable with one another. Unlike the original Caliburn, the Caliburn Koko offers automatic firing only.
Uwell Caliburn Koko Prime
- Battery Capacity: 690 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8 or 1.0 ohm
- Operating Power: 18 watts
- Firing Style: Automatic only
Aside from the mini box shape and the fact that it only supports automatic firing, the Uwell Caliburn Koko Prime is essentially the same device as the Caliburn G.
Uwell Caliburn Koko Prime Vision
- Battery Capacity: 690
- Charging Port: USB-C
- Coil Resistance: 0.8 or 1.0 ohm
- Operating Power: 18 watts
- Firing Style: Automatic only
The Uwell Caliburn Koko Prime Vision is basically the same device as the Caliburn Koko Prime, but it has a translucent plastic shell and a different set of decorative side panels.
Uwell Caliburn AK2
- Battery Capacity: 520 mAh
- Charging Port: USB-C
- Coil Resistance: 0.9 ohm
- Operating Power: 15 watts
- Firing Style: Automatic only
The Uwell Caliburn AK2 is essentially the same device as the Caliburn A2, except for the mini box shape and the fact that it supports automatic firing only.
Uwell Caliburn GK2
- Battery Capacity: 690 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8, 1.0 and 1.2 ohm
- Operating Power: 18 watts
- Firing Style: Automatic only
The Uwell Caliburn GK2 is essentially the same device as the Caliburn G2, except for the mini box shape and the fact that it supports automatic firing only.
Uwell Caliburn GK2 Vision
- Battery Capacity: 690 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8, 1.0 and 1.2 ohm
- Operating Power: 18 watts
- Firing Style: Automatic only
The Uwell Caliburn GK2 Vision is the same device as the Caliburn GK2, it but has a translucent shell and displays an LED light show when you vape. The Caliburn GK2 Vision also has a haptic vibration system for feedback.
Uwell Caliburn AK3
- Battery Capacity: 520 mAh
- Charging Port: USB-C
- Coil Resistance: 1.0 ohm
- Operating Power: 13 watts
- Firing Style: Automatic only
The Uwell Caliburn AK3 is essentially the same device as the Caliburn A3, except for the mini box shape and the fact that it supports automatic firing only.
Uwell Caliburn X Series
Uwell Caliburn X
- Battery Capacity: 850 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8, 1.0 or 1.2 ohm
- Operating Power: 13 watts
- Firing Style: Automatic or manual
The Uwell Caliburn X was Uwell’s attempt to enter the upscale market by providing a premium version of the Caliburn at a higher price point. It presumably wasn’t entirely successful because most of the advanced features of the Caliburn X have since been added to other Caliburn devices, while the Caliburn X has been discontinued. The Caliburn X features a larger battery than most Caliburn devices. It also has a 3-ml pod, while most Caliburn devices use 2-ml pods. The Caliburn X was the first Caliburn device with fully adjustable wattage.
Uwell Caliburn Z Series
The devices in the Caliburn Z series have an entirely new form factor that the engineers at Uwell have called “Zega.” These devices have a short and stocky shape that enables them to have larger battery cells.
Uwell Caliburn GZ2
- Battery Capacity: 850 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8, 1.0 or 1.2 ohm
- Operating Power: 17 watts
- Firing Style: Automatic only
The Uwell Caliburn GZ2 is essentially the same device as the Caliburn G2, but its shape allows it to have a higher battery capacity of 850 mAh compared to the 750-mAh battery of the G2. The Caliburn GZ2 also features a very unique multicolor battery meter that’s certain to catch your eye.
Uwell Caliburn AZ3
- Battery Capacity: 750 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8 or 1.0 ohm
- Operating Power: 17 watts
- Firing Style: Automatic only
The Uwell Caliburn AZ3 is essentially the same device as the Caliburn A3, but its shape allows it to have a higher battery capacity of 750 mAh compared to the 520-mAh battery of the A3. The Caliburn AZ3 also has the same unique battery meter as the Caliburn GZ2.
Uwell Caliburn Tenet Series
Uwell Caliburn Tenet
- Battery Capacity: 750 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8, 1.0 or 1.2 ohm
- Operating Power: 16 watts
- Firing Style: Automatic or manual
The Uwell Caliburn Tenet is essentially the same device as the Caliburn G2, but it has a unique steampunk design.
Uwell Caliburn Tenet Koko
- Battery Capacity: 950 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8, 1.0 or 1.2 ohm
- Operating Power: 18 watts
- Firing Style: Automatic only
The Uwell Caliburn Tenet Koko is essentially the same device as the Caliburn Tenet, but it has a mini-box shape rather than a vape pen shape. It also has a much higher battery capacity. It also uses haptic vibrations to provide feedback.
Uwell Caliburn Ironfist Series
Uwell Caliburn & Ironfist L
- Battery Capacity: 690 mAh
- Charging Port: USB-C
- Coil Resistance: 0.8, 1.0 or 1.2 ohm
- Operating Power: 16 watts
- Firing Style: Automatic only
The Uwell Caliburn & Ironfist L has a very interesting name, and it also has a unique side-by-side design that positions the pod next to the battery rather than on top of it. The Caliburn & Ironfist L has an airflow adjustment dial at the bottom of the device, and it also has three selectable power levels.