Uwell Caliburn AZ3 Pod System Kit Reviews

Introduction

The Uwell Caliburn AZ3 Pod System Kit is a compact refillable pod device with a 750mAh internal battery, a 2ml pod, and a maximum output of 17W. It is part of the Caliburn family and shares the same general approach as other Uwell pod systems: small size, simple operation, and coil-based refillable pods. This review covers the published specs, design notes, coil options, and where the device fits based on its spec sheet.

Specifications

The following specifications are taken from the product information supplied for the Caliburn AZ3 kit.

Dimensions: 25.8mm x 23.7mm x 72.4mm
Net weight: approx. 47g
E-liquid capacity: 2ml
Battery capacity: 750mAh
Maximum output: 17W
Coil options: FeCrAl Meshed 0.8Ω CALIBURN A3S Refillable Pod (pre-installed) and FeCrAl Meshed 1.2Ω CALIBURN AZ3 (Grace) Refillable Pod (spare)
Refill system: 3-step U-Valve
Juice window: ClearView
Materials: Aluminum Alloy body and PCTG cartridge

Design and Build

The Caliburn AZ3 is a compact pod kit with a body that is meant to fit comfortably in a hand or pocket. The published dimensions are 25.8mm x 23.7mm x 72.4mm and the net weight is listed at about 47g. The original product material describes the device as about 50% smaller than traditional pod models, which is a design goal rather than a measured comparison with a specific device.

The device body is made from Aluminum Alloy and the cartridge is made from PCTG. Aluminum Alloy gives the shell a firmer feel, while PCTG is a clear, durable plastic commonly used for e-liquid cartridges. The materials should provide a solid everyday build, but the review does not include a drop test or long-term wear data.

The ClearView juice window is a practical design detail because it lets the user see the e-liquid level without removing the pod. The overall look is minimal, with the refill valve and airflow adjustment kept simple. The 3-step U-Valve refill system is meant to make filling less messy, and the clear window reduces guesswork when the pod is running low.

The compact form factor is the main design priority, and the listed materials support that goal without adding excessive weight. The device is smaller than a traditional pod model according to the product material, which makes it easier to carry in a pocket or small bag.

Features and Performance

The AZ3 has a 750mAh battery, which the product material describes as over 20% higher than comparable models. With a 17W maximum output, the device is aimed at MTL and low-power restricted draws rather than high-wattage direct lung use. On paper, the 750mAh battery should cover a day of moderate MTL use for many vapers, though actual runtime will depend on coil choice, wattage, and usage habits. No battery runtime measurement is included in the available facts.

The kit comes with two FeCrAl Meshed coil options: a 0.8Ω CALIBURN A3S Refillable Pod pre-installed and a 1.2Ω CALIBURN AZ3 Grace Refillable Pod as a spare. The 0.8Ω option is the more open coil and should suit a slightly looser draw, while the 1.2Ω option should give a tighter MTL draw and likely use less power. FeCrAl meshed coils are common in Uwell Caliburn products and are designed to heat evenly, which helps with flavor delivery.

The 3-step U-Valve refill mechanism is intended to simplify the process of refilling the 2ml pod. The ClearView juice window gives the user a clear view of the remaining e-liquid, which reduces the chance of running dry during a session. The maximum output of 17W can be adjusted, so users can dial down for a tighter MTL feel or run closer to the limit for a slightly more open draw.

Because the e-liquid capacity is 2ml, the device is best suited to moderate consumption. Heavy vapers may need to refill more often, especially if they prefer the lower-resistance coil at higher power. The device is not designed to compete with high-wattage pod mods, but it offers a compact package with two coil choices and simple controls.

The 3-step U-Valve refill system is a practical detail for people who fill their own pods. It is meant to reduce spillage and keep the fill process simple. The ClearView juice window supports that by letting the user see the liquid level before refilling. For a compact pod device, those two details are more important than raw power, because they affect how often the user has to interact with the pod.

Advantages and Disadvantages

Advantages

Compact size and about 47g weight make it easy to carry.
750mAh battery is about 20% higher than comparable models according to the product material.
Two FeCrAl Meshed coil options give users a choice between a 0.8Ω and a 1.2Ω draw.
U-Valve refill and ClearView juice window make filling and checking e-liquid level simple.
17W maximum output can be adjusted, which gives MTL users some control over their draw.

Disadvantages

2ml e-liquid capacity may require frequent refills for heavy vapers.
17W maximum output is limited for users who want a more powerful direct-lung device.
Charging speed and real-world battery runtime are not stated in the available specs.

Final Verdict

The Caliburn AZ3 is a compact pod kit for vapers who want a small, low-power device with coil options and straightforward refilling. The 750mAh battery and 17W maximum output place it in the MTL category, and the included 0.8Ω and 1.2Ω coils give users some flexibility. It is best suited to everyday carry and moderate use rather than high-wattage sessions.

The device does not claim to be a high-power or cloud-focused pod. Instead, it sits in the low-wattage MTL category where size, ease of refilling, and coil choice matter more than maximum output. Users who accept those limits should find the AZ3 a reasonable everyday carry option.

Buy If

You want a compact MTL pod kit with a 2ml pod and a 750mAh battery.
You like having two coil resistances (0.8Ω and 1.2Ω) to switch between.
You prefer a simple refill system and a clear juice window for monitoring liquid.