Uwell Caliburn G3 Pro VS G3: Detailed Differences Explained

When Uwell dropped the Caliburn G3, it quickly became a favorite for vapers who appreciate a simple, reliable device that delivers flavor without the fuss. Then came the Uwell Caliburn G3 Pro—a step up in design, features, and overall functionality. If you're trying to figure out whether the G3 Pro is worth the upgrade or if the original G3 still holds strong, I’ve broken down every detail so you can make the best call for your vaping style.

Design and Build: Sleek vs Sophisticated

The G3 and G3 Pro may look similar at first glance, but once you get them in hand, the differences are obvious. The Caliburn G3 Pro stands a bit taller and wider, measuring in at 123.5mm x 27.8mm x 16.8mm. It’s got a more robust feel thanks to its zinc-alloy construction, which gives it a sleek, durable frame. Uwell also gave it a more modern aesthetic, with clean lines and a refined design that feels premium from top to bottom.

In comparison, the Caliburn G3 is more compact at 115.5mm x 24mm x 13.9mm and uses an aluminum alloy chassis. It’s lightweight, easy to pocket, and extremely portable, making it ideal for those who like a discreet setup. However, in terms of build quality and presence, the Pro edges ahead with a sturdier, more premium feel.

Performance: Power and Precision

Performance-wise, the Caliburn G3 Pro is built to deliver more. It offers a maximum wattage of 35W, which gives you more headroom to dial in your vape just the way you like it. Whether you're chasing a tighter MTL draw or a warmer RDL hit, the Pro handles it with ease. It also supports a resistance range of 0.4 to 0.9 ohm, which adds versatility for different vaping styles and preferences.

The original G3 caps out at 25W, which is still solid for everyday use. It’s designed around simplicity and consistency, but it lacks the fine-tuning ability that the Pro offers. For casual users, 25W is usually plenty, especially with the integrated coil system designed for flavor-forward vaping.

Both devices use Uwell Caliburn G3 Series Pods, so you won’t need to worry about buying different pods if you decide to switch between the two.

Battery and Charging: Bigger, Faster, Smarter

Battery life is another major factor where the G3 Pro takes the lead. With a larger form factor comes a more robust built-in rechargeable battery (exact mAh not listed but implied to be more powerful than the G3’s). The original G3 features a 900mAh battery, which is decent for light to moderate use, but you’ll likely find yourself recharging more frequently if you're a heavy vaper.

Both models use USB Type-C charging, so you’ll get relatively fast recharge times either way. However, given the increased wattage capabilities of the G3 Pro, it’s safe to assume it also comes equipped to charge a bit quicker and last longer between sessions.

Pod Capacity and Filling: Small Changes, Big Impact

Uwell increased the pod capacity slightly with the Pro, offering 3mL of juice space compared to the G3’s 2.5mL. That half-milliliter might not seem like much on paper, but in practice, it means fewer refills and more time vaping. Both devices utilize side-fill systems, and the pods are made from PCTG, ensuring durability and heat resistance.

One thoughtful addition in both models is the e-juice viewing window, but the ClearView Juice Window on the Pro is larger and easier to read at a glance. It's a small detail that enhances the overall user experience—especially for people who like to keep track of their juice level without having to remove the pod.

Airflow and Customization: The Pro Gets Personal

One of the biggest standout features of the Caliburn G3 Pro is the adjustable airflow switch. With this feature, you can fine-tune your draw, making it tighter or airier depending on your mood. It adds a level of control that’s perfect for users who like to switch between MTL and RDL.

The regular G3 lacks an external airflow adjustment. Instead, it relies on the natural resistance of the pod and your puff strength. It’s still a satisfying vape, but the Pro just offers more flexibility and precision.

User Interface and Operation: Pro-Level Control

Here’s where the G3 Pro really starts to shine—it’s equipped with enhanced user controls and a refined UI. While Uwell hasn’t disclosed a lot about the full extent of the Pro's screen or menu features, the presence of a more advanced interface is confirmed. This gives users more real-time data and the ability to adjust settings with better accuracy.

The standard G3 has a basic display screen and supports dual activation modes (button or draw), which is convenient and user-friendly. But it doesn't offer the same level of control or customization the Pro provides.

Flavor Technology: Uwell’s Secret Weapon

Both devices come equipped with Uwell’s Pro-FOCS flavor technology, which is essentially their in-house system to optimize coil heating, airflow, and wicking for pure, consistent flavor. Whether you’re using nic salts or freebase e-liquid, both the G3 and G3 Pro deliver excellent flavor, but the Pro’s higher wattage gives it a slight edge in producing denser clouds and more intense vapor.

Which One’s Right for You?

If you’re someone who wants a simple, dependable, and compact vape that performs well without too many bells and whistles, the Caliburn G3 is a solid choice. It’s beginner-friendly, highly portable, and still delivers great flavor with very little effort.

But if you're craving more power, control, and premium features packed into a sleek device, the Caliburn G3 Pro is absolutely worth considering. The larger pod, adjustable airflow, extended wattage range, and refined build give it a professional touch that daily vapers will truly appreciate.

Final Thoughts

Both the Caliburn G3 and G3 Pro carry Uwell’s reputation for dependable performance and flavorful hits. The decision comes down to what you value most—simplicity or control, portability or power. I’ve used both, and while I appreciate the easygoing nature of the G3, the Pro has definitely raised the bar for pod systems in 2025. If you're ready to take your vaping experience to the next level, the G3 Pro is built to impress.