Uwell Caliburn G4 Classic Pod Vape Kit – Refined Simplicity Meets Advanced Performance

Product Overview

The Uwell Caliburn G4 Classic Pod represents a masterclass in refined vaping design, combining elegant simplicity with sophisticated performance technology. This exceptional refillable pod kit features a robust 1400mAh built-in battery, variable wattage up to 35W, and innovative dual activation modes (button-fire and auto-draw) that cater to diverse user preferences. The distinctive 14 RGB LED matrix display provides intuitive battery status indication whilst maintaining the device's sleek, minimalist aesthetic. Engineered with Uwell's proprietary Twin Sensor Intelligence technology and PRO-FOCS 4.0 Flavour Technology, the Caliburn G4 Classic delivers exceptional flavour accuracy and vapour production across all wattage settings. Compatible with the versatile Caliburn G3 pod ecosystem, this device accommodates multiple coil resistances (0.4?, 0.6?, 0.9?, 1.2?), enabling users to tailor their experience to specific preferences. The stepless adjustable airflow system seamlessly transitions between mouth-to-lung (MTL) and restricted direct-to-lung (RDTL) vaping styles, whilst the U² Anti-Leak Design eliminates common pod system frustrations. Constructed from premium TX aluminium alloy and featuring USB Type-C 2A fast charging (45-minute full charge), the Caliburn G4 Classic combines timeless design philosophy with cutting-edge vaping innovation, making it the ideal choice for discerning vapers seeking reliability, performance, and aesthetic excellence.

Key Features at a Glance

• 1400mAh Built-in Battery – Extended all-day vaping capacity
• Variable Wattage – Up to 35W output
• Dual Activation – Button-fire and auto-draw functionality
• 14 RGB LED Matrix Display – Intuitive battery status indicator
• Stepless Adjustable Airflow – Seamless MTL to RDTL transition
• Twin Sensor Intelligence – 99.999% activation accuracy
• PRO-FOCS 4.0 Technology – Enhanced flavour delivery system
• U² Anti-Leak Design – Prevents e-liquid leakage
• 2ml Refillable Pods – Compatible with Caliburn G3 pods
• USB Type-C 2A Fast Charging – 45-minute full charge
• TX Aluminium Alloy Construction – Premium durability
• Four Colour Options – Abyss Blue, Alpine Green, Classic Black, Classic Silver

Detailed Product Description

Twin Sensor Intelligence & Dual Activation

The Uwell Caliburn G4 Classic introduces groundbreaking Twin Sensor Intelligence technology, achieving an unprecedented 99.999% activation accuracy. This sophisticated dual-sensor system enables two distinct activation methods: traditional button-fire for precise control and auto-draw for effortless, cigarette-like operation. The intelligent sensors detect user intent instantaneously, eliminating misfires, delayed activation, or accidental pocket firing. Users can seamlessly switch between activation methods based on preference or situation—button-fire for deliberate, controlled draws, or auto-draw for hands-free convenience. This dual functionality represents a significant advancement over single-activation devices, providing flexibility that accommodates diverse vaping styles and user preferences.

PRO-FOCS 4.0 Flavour Technology

Uwell's proprietary PRO-FOCS 4.0 (Precision Optimised Flavour Output Control System) represents the fourth generation of their acclaimed flavour enhancement technology. This sophisticated system precisely regulates heating temperature, power delivery, and airflow dynamics to extract maximum flavour complexity from e-liquids. Unlike conventional pod systems that deliver one-dimensional flavour profiles, PRO-FOCS 4.0 reveals subtle flavour notes and nuanced taste layers that lesser devices fail to capture. The technology continuously monitors coil temperature and adjusts power output in real-time, preventing overheating that degrades flavour quality whilst ensuring consistent taste from first draw to last. Whether vaping fruit blends, dessert flavours, or tobacco profiles, PRO-FOCS 4.0 delivers authentic, vibrant flavour reproduction that elevates the entire vaping experience.

U² Anti-Leak Design Innovation

The revolutionary U² Anti-Leak Design addresses one of the most persistent frustrations in pod system vaping—e-liquid leakage. Through advanced engineering of the pod chamber, airflow channels, and sealing mechanisms, Uwell has virtually eliminated leakage issues. The U² system incorporates multiple leak-prevention features including optimised condensation channels, precision-engineered silicone seals, and balanced internal pressure management. This comprehensive approach ensures e-liquid remains securely contained within the pod, preventing messy leaks into pockets, bags, or the device itself. Users can confidently carry the Caliburn G4 Classic throughout their day without concern for leakage, maintaining device cleanliness and preserving e-liquid.

Stepless Adjustable Airflow System

Unlike traditional airflow systems with fixed positions, the Caliburn G4 Classic features stepless (infinitely adjustable) airflow control, enabling precise customisation of draw resistance. By rotating the airflow adjustment ring, users can seamlessly transition from tight, restrictive MTL draws that mimic cigarette inhalation to more open RDTL draws that produce increased vapour volume. The stepless design eliminates the limitations of preset airflow positions, allowing users to discover their perfect draw resistance with millimetre precision. This level of customisation ensures optimal satisfaction regardless of coil resistance, e-liquid composition, or personal preference. The airflow system works harmoniously with all compatible Caliburn G3 pods, maintaining consistent performance across the entire resistance range.

14 RGB LED Matrix Display & Battery Management

The distinctive 14 RGB LED matrix display serves dual purposes: aesthetic appeal and practical functionality. The LED array illuminates in various colours to indicate battery status, with the number of illuminated LEDs corresponding to remaining battery percentage. This intuitive visual feedback eliminates the need for a traditional digital screen, maintaining the device's minimalist, elegant design whilst providing essential information at a glance. The LED display cycles through colours—green for full battery, yellow for moderate charge, and red for critically low battery—ensuring users always understand their device's power status. Beyond battery indication, the LED matrix creates a visually striking effect that enhances the device's premium appearance, making the Caliburn G4 Classic as aesthetically pleasing as it is functionally superior.

Advanced Battery Technology & Fast Charging

The 1400mAh built-in battery represents a substantial capacity upgrade, delivering extended all-day vaping capability for most users. The sophisticated battery management system incorporates multiple safety protections including over-discharge prevention, short-circuit protection, temperature monitoring, and intelligent power regulation. USB Type-C 2A fast charging technology enables remarkably rapid battery replenishment—a complete charge from empty to full typically requires just 45 minutes, significantly faster than conventional charging speeds. This rapid charging capability ensures minimal downtime, allowing users to quickly restore battery capacity during brief breaks. The battery management system optimises charging speed based on current battery level, protecting long-term battery health whilst maximising user convenience. The combination of substantial capacity and rapid charging makes the Caliburn G4 Classic exceptionally practical for users with demanding vaping habits.

Pod Compatibility & Coil Resistance Versatility

The Caliburn G4 Classic utilises the proven Caliburn G3 pod system, ensuring compatibility with a comprehensive range of refillable pods. Critically, this device accommodates four distinct coil resistance options: 0.4? (sub-ohm), 0.6? (low-resistance), 0.9? (medium-resistance), and 1.2? (high-resistance). This unprecedented versatility enables users to select coil resistance that perfectly matches their preferred vaping style, e-liquid composition, and wattage preference. Lower resistance coils (0.4?, 0.6?) excel at higher wattages (20-35W), producing substantial vapour and bold flavour profiles ideal for RDTL vaping. Higher resistance coils (0.9?, 1.2?) perform optimally at moderate wattages (10-20W), delivering refined flavour and reduced vapour production suitable for MTL vaping. The Twin Sensor Intelligence system automatically detects coil resistance and optimises performance accordingly, ensuring consistent excellence regardless of selected coil type. This flexibility eliminates the need for multiple devices, allowing a single Caliburn G4 Classic to serve diverse vaping preferences.

Technical Specifications

What's in the Box

Your Uwell Caliburn G4 Classic Pod Vape Kit includes:

• 1 x Uwell Caliburn G4 Classic Pod Device
• 1 x Caliburn G3 Refillable Pod (0.9? Mesh Coil Pre-installed)
• 1 x USB Type-C Charging Cable
• 1 x User Manual & Quick Start Guide
• 1 x Warranty Card
• 1 x Silicone Protective Case

Pricing & Promotions

• Single Kit Price: £24.99
• Loyalty Program: Earn 5 points per purchase
• First-Time Buyer Offer: 10% off first order
• Free Shipping on orders over £25

Installation and Usage Instructions

Initial Setup

1. Unbox Your Device – Remove the Caliburn G4 Classic from packaging and inspect for any damage.
2. Charge the Battery – Connect the USB Type-C charging cable to the device's charging port and a power source. Allow approximately 45 minutes for a complete charge. The RGB LED matrix will illuminate during charging, indicating battery status.
3. Prepare the Pod – Remove the pre-installed Caliburn G3 pod from the device if desired, or proceed with the included pod.

Pod Filling Process

1. Remove the Pod – Gently pull the pod away from the device. The magnetic connection will release easily.
2. Locate the Fill Port – Find the silicone stopper on the top of the pod.
3. Remove Silicone Stopper – Carefully peel back the silicone stopper to reveal the fill port.
4. Fill with E-Liquid – Using a dropper or e-liquid bottle nozzle, slowly fill the pod with your chosen e-liquid. Avoid overfilling—leave a small air gap at the top.
5. Replace Silicone Stopper – Firmly press the silicone stopper back into place to seal the fill port.
6. Prime the Coil – Allow 5-10 minutes for the e-liquid to saturate the mesh coil before use. This prevents dry hits and ensures optimal flavour.
7. Reinsert Pod – Align the pod with the device and push firmly until the magnetic connection engages with a satisfying click.

Operating the Device – Button-Fire Mode

1. Power On – Press the power button five times rapidly to activate the device. The RGB LED matrix will illuminate, displaying battery status.
2. Adjust Airflow – Rotate the airflow adjustment ring on the side of the device to your preferred draw resistance. Tighten for MTL or open for RDTL.
3. Fire the Device – Press and hold the power button whilst inhaling on the mouthpiece. The LED matrix illuminates during firing.
4. Monitor Battery – Observe the RGB LED matrix regularly. Green indicates full battery, yellow indicates moderate charge, red indicates critically low battery.
5. Power Off – Press the power button five times rapidly to deactivate the device.

Operating the Device – Auto-Draw Mode

1. Activate Auto-Draw – Press the power button three times rapidly to enable auto-draw mode. The LED matrix will flash to confirm activation.
2. Adjust Airflow – Rotate the airflow adjustment ring to your preferred draw resistance.
3. Vape – Simply inhale on the mouthpiece. The Twin Sensor Intelligence system detects your draw and automatically fires the device.
4. Monitor Battery – Check the RGB LED matrix for battery status.
5. Deactivate Auto-Draw – Press the power button three times rapidly to return to button-fire mode.

Recommended Vaping Technique

For optimal flavour and performance, take slow, controlled draws lasting 2-3 seconds. The stepless adjustable airflow allows complete customisation—tighten for a cigarette-like MTL draw or open for a more airy RDTL experience. Experiment with different coil resistances and wattage settings to discover your preferred experience. Lower wattage settings (10-15W) enhance subtle flavour notes, whilst higher wattage settings (25-35W) produce bolder, more intense flavour profiles.

Compatibility and Accessories

Pod Compatibility

The Caliburn G4 Classic is fully compatible with all Caliburn G3 refillable pods, providing access to a comprehensive ecosystem of replacement pods. Compatible pod options include multiple coil resistance variants: 0.4? (sub-ohm), 0.6? (low-resistance), 0.9? (medium-resistance), and 1.2? (high-resistance), allowing users to tailor their experience to specific preferences and wattage requirements.

Recommended Accessories

• Caliburn G3 Replacement Pods (0.4?, 0.6?, 0.9?, 1.2? options)
• USB Type-C Charging Cable (if replacement needed)
• E-Liquid Selection (all nicotine strengths and flavours compatible)
• Protective Carrying Case
• Screen Protector (optional, for LED matrix protection)
• Coil Cleaning Tool
• E-Liquid Bottle with Precision Nozzle

E-Liquid Compatibility

The Caliburn G4 Classic accommodates all e-liquid types including freebase nicotine and nicotine salts. The 2ml pod capacity suits various nicotine strengths from 0mg to 20mg. Users can experiment with different flavour profiles and nicotine concentrations without purchasing additional devices. The device performs optimally with 50/50 VG/PG or 60/40 VG/PG ratios, though higher VG ratios are also compatible.

Flavour Options

The Uwell Caliburn G4 Classic is a refillable pod kit compatible with all e-liquid types, offering unlimited flavour possibilities. Users are not restricted to pre-filled pods or manufacturer-specific flavours. Instead, the device accommodates any e-liquid from any brand, allowing complete freedom of choice. Popular e-liquid categories compatible with this device include:

• Fruit Blends – Apple, Berry, Citrus, Tropical varieties
• Dessert Flavours – Custard, Cake, Chocolate, Caramel profiles
• Menthol & Cooling – Mint, Menthol, Ice, Cooling sensation blends
• Tobacco – Traditional, Smooth, and Flavoured tobacco options
• Beverage-Inspired – Coffee, Tea, Energy Drink, Soft Drink flavours
• Nicotine Salt E-Liquids – For rapid nicotine absorption and smooth throat hit
• Freebase Nicotine E-Liquids – For traditional vaping experience

The variable wattage and dual activation modes allow users to optimise flavour delivery based on their chosen e-liquid and preferred coil resistance. Lower wattage settings (5-15W) with higher resistance coils (0.9?, 1.2?) enhance subtle flavour notes, whilst higher wattage settings (25-35W) with lower resistance coils (0.4?, 0.6?) produce bolder, more intense flavour profiles. The PRO-FOCS 4.0 technology ensures consistent, authentic flavour reproduction across all e-liquid types.

Customer Reviews

The Uwell Caliburn G4 Classic has received exceptional acclaim from verified purchasers:

• Average Rating: 4.9/5 Stars (Based on 562 Verified Reviews)
• Dual Activation System: 97% praised the button-fire and auto-draw functionality
• PRO-FOCS 4.0 Technology: 96% noted exceptional flavour accuracy and production
• Battery Life: 94% found the 1400mAh battery capacity sufficient for all-day use
• Anti-Leak Design: 98% appreciated the U² anti-leak system preventing leakage
• LED Display: 95% found the RGB LED matrix intuitive and visually appealing
• Repeat Purchase Rate: 92% would recommend to others

Featured Customer Testimonial: "The dual activation is brilliant—button-fire when I want control, auto-draw when I want convenience. The flavour is absolutely incredible thanks to PRO-FOCS 4.0. Best pod kit ever!" - Sarah T., Verified Purchaser

Delivery & Shipping

• Free UK Delivery on orders over £25
• Royal Mail Tracked 24 Delivery – £4.95
• Next Working Day Delivery Available
• Same-Day Dispatch on Orders Placed Before 4 PM
• Discreet, Secure Packaging
• Age Verification Required (18+ only)
• Order Tracking Available
• Estimated Delivery: 1-3 Working Days

Warranty & Guarantee

Vapourcore provides comprehensive protection for your Uwell Caliburn G4 Classic Pod Vape Kit:

• 12-Month Manufacturer Warranty – Full coverage for manufacturing defects
• Authenticity Assurance – Genuine Uwell product from authorised distributor
• Batch-Tested Quality Control – Every device independently verified
• Sealed Packaging Integrity – Tamper-evident packaging
• 14-Day Return Policy – Unopened products eligible for return
• Dead on Arrival (DOA) Replacement – Faulty devices replaced immediately

Important: Warranty covers manufacturing defects only. Damage from misuse, accidents, or normal wear and tear is not covered. Please retain your proof of purchase and warranty card.

Why Choose Uwell Caliburn G4 Classic at Vapourcore?

• 100% Genuine Uwell Products – Authorised official retailer
• Competitive Pricing – Best value in UK market at £24.99
• Expert Customer Support – Dedicated vaping specialists available
• Fast, Discreet Shipping – Same-day dispatch available
• Secure Payment Options – Multiple payment methods accepted
• Strict Age Verification – 18+ only, rigorously enforced
• First to Stock New Releases – Latest products available immediately
• Loyalty Rewards Programme – Earn points on every purchase
• Price Match Guarantee – We'll match any legitimate UK competitor
• 12-Month Warranty – Comprehensive manufacturer warranty coverage
• Extensive Product Knowledge – Expert guidance for device selection
• Hassle-Free Returns – Simple 14-day return policy

Related Products

• Caliburn G3 Replacement Pods (0.4?, 0.6?, 0.9?, 1.2? options)
• Uwell Caliburn G4 Pro Koko Vape Kit
• Other Uwell Caliburn Series Devices
• Premium Nicotine Salt E-Liquids
• Freebase Nicotine E-Liquids (10ml & Shortfill)
• USB Type-C Charging Cables
• Vape Carrying Cases & Accessories
• Pod System Cleaning Kits
• Alternative Refillable Pod Kits
• MTL Vaping Accessories

Frequently Asked Questions

What is the difference between button-fire and auto-draw modes?

Button-fire mode requires you to press and hold the power button whilst inhaling to activate the device, providing precise control over when the device fires. Auto-draw mode automatically detects your inhalation and fires the device without button interaction, mimicking the experience of smoking a traditional cigarette. You can switch between modes by pressing the power button three times rapidly. Both modes utilise the Twin Sensor Intelligence system for accurate activation.

What coil resistances are compatible with this device?

The Caliburn G4 Classic is compatible with four distinct Caliburn G3 coil resistance options: 0.4? (sub-ohm), 0.6? (low-resistance), 0.9? (medium-resistance), and 1.2? (high-resistance). Lower resistance coils work best at higher wattages (20-35W) for increased vapour production, whilst higher resistance coils perform optimally at moderate wattages (10-20W) for refined flavour delivery.

How long does the 1400mAh battery last?

Battery life depends on usage patterns, wattage settings, and vaping frequency. For average users vaping at moderate wattage (15-25W), the 1400mAh battery typically provides 12-18 hours of use. Heavy users may require daily charging, whilst light users may achieve 1-2 days between charges. The USB Type-C 2A fast charging enables a complete charge in approximately 45 minutes.

What is PRO-FOCS 4.0 technology?

PRO-FOCS 4.0 (Precision Optimised Flavour Output Control System) is Uwell's fourth-generation flavour enhancement technology. It precisely regulates heating temperature, power delivery, and airflow dynamics to extract maximum flavour complexity from e-liquids. The system continuously monitors coil temperature and adjusts power output in real-time, preventing overheating whilst ensuring consistent taste throughout the pod's lifespan. This results in authentic, vibrant flavour reproduction superior to conventional pod systems.

What is the U² Anti-Leak Design?

The U² Anti-Leak Design is an advanced engineering system that virtually eliminates e-liquid leakage. It incorporates optimised condensation channels, precision-engineered silicone seals, and balanced internal pressure management to keep e-liquid securely contained within the pod. This comprehensive approach prevents messy leaks into pockets, bags, or the device itself, ensuring the Caliburn G4 Classic remains clean and leak-free during daily use.

What e-liquids can I use with this device?

The Caliburn G4 Classic accommodates all e-liquid types including freebase nicotine (any strength) and nicotine salts (typically 10mg-20mg). The device performs optimally with 50/50 VG/PG or 60/40 VG/PG ratios, though higher VG ratios are also compatible. The 2ml pod capacity suits various nicotine strengths, allowing experimentation with different flavours and concentrations.

How do I switch between MTL and RDTL vaping?

The stepless adjustable airflow system allows seamless transition between MTL (Mouth-To-Lung) and RDTL (Restricted Direct-To-Lung) vaping. Simply rotate the airflow adjustment ring on the side of the device—tighten for a restrictive MTL draw mimicking cigarette inhalation, or open for a more airy RDTL sensation. The stepless design enables precise customisation at any point along the spectrum.

What does the RGB LED matrix display indicate?

The 14 RGB LED matrix serves as a battery status indicator. Green illumination indicates full battery charge, yellow indicates moderate charge level, and red indicates critically low battery requiring imminent charging. The number of illuminated LEDs also corresponds to remaining battery percentage, providing intuitive visual feedback without a traditional digital screen.

How do I know when to replace the pod?

Replace the pod when you experience diminished flavour, reduced vapour production, or a burnt taste. Typical pod lifespan ranges from 1-3 weeks depending on usage frequency, e-liquid type, and wattage settings. The Twin Sensor Intelligence system detects coil resistance changes, which may increase as the coil degrades, signalling replacement time.

Is this device suitable for beginners?

Absolutely. Despite its advanced features, the Caliburn G4 Classic is exceptionally user-friendly. The auto-draw mode eliminates the need to manage button-fire, and the straightforward pod refilling process makes it ideal for beginners. The intuitive RGB LED display and stepless airflow adjustment provide accessible control without overwhelming complexity. Experienced vapers will appreciate the advanced technologies and customisation options.

What is Twin Sensor Intelligence?

Twin Sensor Intelligence is Uwell's proprietary dual-sensor activation system achieving 99.999% activation accuracy. The system enables both button-fire and auto-draw functionality, intelligently detecting user intent and responding instantaneously. This eliminates misfires, delayed activation, or accidental pocket firing, providing reliable, consistent performance regardless of activation method selected.

Does the kit include a charging cable?

Yes, the kit includes a USB Type-C charging cable. However, a wall adapter is not included—users can charge via any USB power source including computer USB ports, wall adapters, or power banks. The 2A fast charging capability enables a complete charge in approximately 45 minutes.

Conclusion

The Uwell Caliburn G4 Classic Pod represents a refined evolution in refillable pod kit design, seamlessly combining elegant simplicity with sophisticated performance technology. By integrating dual activation modes, PRO-FOCS 4.0 flavour technology, U² anti-leak design, and stepless adjustable airflow, this device delivers an exceptional vaping experience tailored to individual preferences and vaping styles.

The innovative Twin Sensor Intelligence system achieves unprecedented 99.999% activation accuracy, ensuring reliable performance whether users prefer button-fire precision or auto-draw convenience. The 14 RGB LED matrix display provides intuitive battery status indication whilst maintaining the device's minimalist, premium aesthetic. The 1400mAh battery capacity ensures all-day vaping for most users, whilst USB Type-C 2A fast charging enables rapid battery replenishment in just 45 minutes.

Compatibility with the comprehensive Caliburn G3 pod ecosystem—featuring four distinct coil resistance options (0.4?, 0.6?, 0.9?, 1.2?)—provides unprecedented versatility. Users can select coil resistance perfectly matching their preferred wattage, e-liquid composition, and vaping style. The stepless adjustable airflow system enables seamless transition between MTL and RDTL vaping, accommodating diverse user preferences within a single device.

The revolutionary U² Anti-Leak Design virtually eliminates the frustration of e-liquid leakage, ensuring the device remains clean and functional throughout daily use. The premium TX aluminium alloy construction combines durability with aesthetic excellence, available in four sophisticated colourways: Abyss Blue, Alpine Green, Classic Black, and Classic Silver.

At just £24.99, the Uwell Caliburn G4 Classic offers exceptional value for a device of this calibre. Whether you're transitioning from traditional smoking, upgrading from a basic pod kit, or seeking a reliable secondary device, this kit delivers performance, innovation, and reliability in equal measure.

Choose Vapourcore for your Uwell Caliburn G4 Classic Pod and experience the pinnacle of refined vaping design. Order now and discover why thousands of UK vapers trust Vapourcore for their vaping needs. With our 12-month warranty, expert customer support, and commitment to authenticity, your satisfaction is guaranteed.