The Uwell Caliburn G4 Mini Pod Kit brings a new era of convenience, flavor, and power to pod vaping. Designed with precision and elegance, this device captures what vapers have always wanted—portability without sacrificing performance. Compact yet capable, stylish yet practical, it’s a pod kit that proves small devices can deliver big results.
This detailed review explores everything you need to know about the Caliburn G4 Mini—its design, performance, coil technology, airflow control, compatibility, packaging, and what makes it an outstanding choice for both beginners and experienced vapers.
A Design Built for Everyday Use
From the first glance, the Uwell Caliburn G4 Mini stands out for its minimalist and ergonomic design. It’s slim, lightweight, and feels great in the hand. Measuring approximately 112.7 mm in height, 24.1 mm in width, and 14 mm in thickness, it easily fits into a pocket, purse, or even the palm of your hand.
Weighing around 46 grams, it is one of the lightest pod systems in its class. The body uses high-quality PC and PCTG materials, ensuring durability while keeping the device feather-light. The smooth surface, curved edges, and refined metallic finish give it a premium appearance that doesn’t just look good—it feels solid and comfortable to hold.
Despite its compact frame, the device offers a robust build quality. The clean, button-free design eliminates unnecessary clutter, keeping the device simple and sophisticated. Every detail reflects Uwell’s focus on craftsmanship and practicality.
Technical Specifications at a Glance
While the Caliburn G4 Mini looks sleek, its performance specs reveal true power under the hood. Here’s what it offers:
Battery Capacity: 1100 mAh (integrated)
Maximum Output: Up to 35 watts
Pod Capacity: 3 mL (standard) / 2 mL (TPD version)
Dimensions: 112.7 × 24.1 × 14 mm
Weight: Approximately 46 g
Charging Port: USB Type-C (fast charging)
Material: PC + PCTG (durable and lightweight)
Activation: Draw-activated (no firing button)
Airflow Control: Adjustable (slider + pod orientation)
Each feature serves a purpose. The 1100 mAh battery provides enough endurance for a full day of moderate use. The 35 W output ensures strong vapor production without overheating the pod or burning the coil prematurely. The USB-C charging port means you can power it up quickly, reducing downtime between sessions.
This combination of size, battery, and wattage makes the G4 Mini a perfectly balanced device for all-day use.
Flavor Innovation: PRO-FOCS 4.0 Technology
Flavor quality is where the Caliburn G4 Mini truly shines. Uwell has equipped this device with its latest PRO-FOCS 4.0 flavor-enhancement system, an innovation designed to deliver cleaner, more intense flavor with every puff.
According to Uwell’s internal testing, this updated flavor system improves taste performance by up to 35% compared to previous Caliburn models. It also extends the life of each pod by roughly the same percentage, helping users enjoy more puffs per cartridge before needing a replacement.
The upgraded pod structure, featuring U² leak-resistance technology, combines ultrasonic welding with a U-shaped channel inside the pod. This design minimizes e-liquid leakage and maintains stable airflow, keeping the coil saturated while reducing mess.
Every draw feels smooth, flavorful, and consistent. Whether you’re using high-nicotine salt liquids or low-nicotine freebase blends, the G4 Mini ensures excellent vapor density and authentic flavor reproduction.
Airflow System: Precision Control for Every Vaping Style
Airflow makes a major difference in the vaping experience, and the Caliburn G4 Mini’s system offers impressive flexibility. Unlike older Caliburn models with fixed airflow, this device allows precise customization through two mechanisms:
An external airflow slider lets you fine-tune the air intake. You can adjust it for a tighter, more restricted draw or open it up for smoother inhalation.
Pod orientation adjustment provides an additional layer of control. By inserting the pod in different directions, you can subtly change the airflow path and resistance.
Together, these features allow the G4 Mini to support both MTL (mouth-to-lung) and RDL (restricted direct-lung) vaping styles. Beginners who prefer a cigarette-like draw will love its tight, controlled airflow, while more experienced vapers can enjoy a looser inhale with stronger vapor output.
This flexibility ensures that the device caters to a wide range of user preferences—an impressive achievement for a pod kit of this size.
Pod Compatibility and Ecosystem
Compatibility often defines the long-term value of a pod kit, and Uwell has made sure the Caliburn G4 Mini delivers flexibility.
The device is compatible with both Caliburn G3 pods and the latest Caliburn GPP pods. This means users who already own older Caliburn devices don’t need to start from scratch—they can use their existing pod collection without issue.
The GPP pod included with the G4 Mini has been redesigned for even better performance. It holds up to 3 mL of e-liquid, features an ergonomic mouthpiece for comfort, and has a side-fill port that makes refilling quick and clean. The improved coil integration provides consistent heating, excellent wicking, and extended coil life.
Pods are available in various resistances to suit different vaping styles, giving users more control over vapor warmth and flavor intensity. Each pod’s transparency makes it easy to monitor e-liquid levels at a glance, reducing dry-hit risks.
Battery Life and Charging Efficiency
For a small pod system, the 1100 mAh internal battery is quite generous. It’s designed to last most users through an entire day of moderate vaping. Power efficiency has improved from previous Caliburn generations thanks to Uwell’s optimized chipset and coil design.
When it’s time to recharge, the USB Type-C port gets the job done quickly. Even a brief charge can provide hours of use, and full charging takes roughly 45–60 minutes. The LED indicator light keeps you informed about battery status, turning green, blue, or red depending on remaining power.
The combination of strong battery life and quick recharge makes the G4 Mini ideal for commuters, travelers, and anyone who prefers low-maintenance vaping.
Compact but Powerful: Everyday Performance
Despite its small frame, the Caliburn G4 Mini performs like a larger pod system. Vapor production is dense and satisfying without feeling overpowering. The draw activation responds instantly, delivering smooth hits with every puff.
Because of its adjustable airflow, the vapor temperature and draw resistance remain consistent regardless of how you hold the device. That means fewer surprises, more predictability, and a smoother overall experience.
The integrated chip also includes multiple safety features such as short-circuit protection, over-time protection, and low-voltage cutoff. These help preserve both the device and the user’s safety, ensuring peace of mind during daily use.
Color Variants and Style Options
Uwell understands that personalization matters, so the Caliburn G4 Mini comes in a vibrant range of twelve color options.
Available finishes include:
Bright Pink
Champagne Gold
Coast Gold
Dusty Indigo
Grass Green
Lake Blue
Light Silver
Night Black
Paddy Green
Peafowl Emerald
Phoenix Purple
Slate Grey
Each color option reflects a distinct style—whether you prefer bold, flashy hues or understated metallic tones, there’s a variant that suits your taste. The anodized surface resists fingerprints and scratches, maintaining its sleek appearance even with daily handling.
Unboxing Experience and Package Contents
Inside the box, Uwell includes everything you need to get started:
1 × Caliburn G4 Mini Device
1 × 0.6 Ω Caliburn GPP Pod (3 mL capacity)
1 × User Manual
Depending on the region, some kits may also include a USB-C charging cable. The packaging design is clean, professional, and eco-friendly, reflecting Uwell’s modern approach to presentation.
Setting up the device takes only a few minutes—simply fill the pod, wait for the coil to saturate, and take your first draw.
User Experience: Everyday Simplicity
The Caliburn G4 Mini is built for users who value convenience. It operates entirely through auto-draw activation, meaning there are no buttons or complicated settings to manage. Just inhale, and it activates automatically.
The side-fill system keeps refilling easy and mess-free. The pod’s semi-transparent body helps users track e-liquid levels, preventing dry hits. The leak-resistant engineering works effectively, even with frequent use or during travel.
For maintenance, you simply replace the pod when flavor weakens—no coil changes or tools required. This simplicity makes it ideal for beginners and casual vapers who want a straightforward experience without technical hassle.
Performance Breakdown
Flavor: Excellent clarity and richness thanks to PRO-FOCS 4.0 and high-quality mesh coil design.
Vapor: Dense and smooth with adjustable warmth.
Airflow: Fully customizable for MTL or RDL preferences.
Battery Life: Strong for the size; efficient power consumption.
Leak Resistance: Highly improved over previous models.
Ease of Use: Perfectly beginner-friendly—draw to vape, refill and go.
Build Quality: Solid, premium feel with precise manufacturing.
Across these categories, the G4 Mini consistently ranks high. It’s a refined evolution of the Caliburn line, addressing feedback from previous models and adding meaningful improvements without unnecessary complexity.
Final Verdict
The Uwell Caliburn G4 Mini Pod Kit is a masterclass in compact vaping design. It refines the strengths of previous Caliburn generations while adding smarter airflow, stronger battery life, and enhanced flavor performance.
Every element—from its ergonomic shape to its powerful PRO-FOCS 4.0 flavor technology—has been engineered to make vaping simpler, cleaner, and more enjoyable. Whether you’re transitioning from smoking or seeking a portable companion for your main setup, this device is a dependable and stylish choice.
Its sleek build, broad color range, compatibility with older pods, and upgraded technology position it as one of the best mini pod systems in its category.
In short, the Uwell Caliburn G4 Mini delivers what every vaper wants: strong flavor, consistent performance, and effortless usability—all in a pocket-sized package.
