UWELL CALIBURN G4 PRO KOKO 35W POD KIT
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PRODUCT DESCRIPTION
UWELL Caliburn G4 Pro KOKO Pod System [CRC]
The UWELL Caliburn G4 Pro KOKO represents a revolutionary leap forward in compact vaping technology. As UWELL's first-ever KOKO device with an intuitive touchscreen interface, this premium pod system combines cutting-edge smart features with the reliability and performance the Caliburn series is known for. Great for beginners looking for an easy-to-use device, as well as for experienced vapers seeking advanced customization, the G4 Pro KOKO delivers exceptional value with it's intuitive UI, extended battery life, and leak-resistant design.
Caliburn G4 Pro KOKO Pod System features:
Smart 2-inch HD Touchscreen
Say goodbye to confusing button combinations and cluttered menus. The Caliburn G4 Pro KOKO features a responsive 2-inch high-definition touchscreen designed exclusively for vapers. Access all core functions with a single tap — adjust wattage, switch between output modes, reset your puff counter, or customize your UI theme. The intuitive interface puts complete control at your fingertips without any learning curve.
With 8 language options (English, Arabic, Spanish, French, Russian, Italian, German, Indonesian), adjustable brightness and screen timeout settings, and the ability to toggle animations and battery saver modes, you can truly make this device your own.
Massive 2000mAh Battery for Non-Stop Vaping
Tired of constantly recharging your device? The G4 Pro KOKO packs a powerful 2000mAh battery - a 60% increase over previous KOKO models — providing up to 10 days of performance on a single charge. When it's time to recharge, the USB-C fast charging gets you back to vaping quickly, with a full charge in under 45 minutes.
Three Customizable Output Modes for Perfect Flavour
The G4 Pro Koko gives you complete control over your vaping experience with three distinct output modes, each designed for different preferences:
Storm Mode — Delivers intense throat hits and rapid vapor production for those who crave bold, powerful draws. Ideal for direct-lung vapers and those who prefer stronger nicotine satisfaction.
Waves Mode — Provides a smooth, consistent flavour delivery with balanced vapor production. Perfect for all-day vaping with e-liquids where you want to savor every note.
Custom Mode (NEW) — Take personalization to the next level by adjusting power output at the start, middle, and end of each puff. Create your ideal vape profile by fine-tuning how your device performs throughout the entire draw.
With a 5W to 35W output range, you have the flexibility to optimize performance for any e-liquid or coil resistance.
Full Compatibility with Caliburn GPP Pod Platform
The G4 Pro KOKO is fully compatible with the entire Caliburn GPP (G Pod Platform) cartridge ecosystem, giving you:
- Multiple coil resistance options
U² Anti-Leak Technology for Mess-Free Vaping
Nobody wants leaky pods ruining their pockets or bags. The G4 Pro KOKO features U² Anti-Leak Technology that keeps e-liquid where it belongs – in the pod. Combined with the top-fill design, you can refill without removing the cartridge, making the entire experience clean, convenient, and hassle-free.
The ergonomic contoured mouthpiece provides a smooth, comfortable draw that feels natural in your mouth, reducing fatigue during extended vaping sessions.
SHIPPING INFO
SHIPPING POLICY
Gas City Vapes offers same day shipping on all Domestic orders placed before 1pm MST with the exception of Holidays and weekends.
Last updated: February 3, 2026
If you do not see any available shipping options during checkout, please contact us directly so we can make alternative shipping arrangements for your order.
Proof of Age Required
Shipping in Canada
- British Columbia - Appx 3 Business Days
- Alberta - Appx 3 Business Days (Calgary = 1 Day, Edmonton = 2 Days)
- Saskatchewan - Appx 4 Business Days (Saskatoon & Regina = 3 Days)
- Manitoba - Appx 4 Business Days
- Ontario - Appx 4 Business Days
- Quebec - NO SHIPPING
- New Brunswick - Appx 8 Business Days
- Nova Scotia - Appx 8 Business Days
- PEI - Appx 8 Business Days
- Newfoundland - Appx 8 Business Days
- Nunavut - NO SHIPPING
- Northwest Territories - NO SHIPPING
- Yukon - Appx 13 Business Days
Please note all shipping times are appx and may be delayed if you live in a remote area of your province or if the shipping carrier has weather delays. If you require your package sooner than we offer with the free shipping option you can upgrade to Xpresspost for a fee and usually gets to you in half the amount of time.
United States Shipping
IMPORTANT UPDATES FOR U.S. CUSTOMERS
Due to the new U.S. Customs and Border Protection regulations, the way we ship orders to the United States is temporarily changing. Effective August 29, 2025, the U.S. has eliminated the duty-free exemption for all packages from Canada.
What This Means for Your Order:
New Orders (placed after August 28, 2025): We have temporarily suspended the ability to place U.S. orders directly through our website. We are actively working to implement a new system that will allow us to properly collect and prepay all required duties and taxes at the time of your purchase.
Orders Already Shipped (placed before August 29, 2025): IF your order was shipped before this change took effect, but has not arrived in the U.S., there's a significant risk of delay or refusal by U.S. Customs. Packages shipped under the old rules may be returned to us as non-compliant. Unfortunately, once a package is in transit, we have no control over its clearance process. We will monitor your tracking information and contact you immediately if we see any issues.
Need to Order Now? We're committed to serving our loyal U.S. customers. If you need to place an order and are having troubles or not seeing any shipping options at checkout, please contact us directly via phone or email. We will process your request manually and discuss any potential implications.
We sincerely apologize for any inconvenience this may cause and thank you for your patience as we navigate these complex changes. We appreciate your business and are working hard to make our U.S. shipping process as seamless as possible in compliance with all new regulations.
International Shipping Disclaimer
- You, the buyer, are responsible for any VAT, tariff, duty, taxes, handling fees, customs clearance charges, etc. required by your country for importing consumer goods. We do not collect this beforehand, and cannot give you an estimate of the cost - charges vary around the world.
- As an international consumer, please do your research to ensure there are no surprise charges when clearing your package through customs, and to have an idea of what the additional cost may be. If you are unfamiliar with customs fees and charges, please speak to your local postal or customs office for more information. It is your full responsibility to verify the customs, duties charges, and procedures in your country prior to placing your order.
- If customs fees and charges are refused at the time of delivery, your order will be returned and you will not receive a refund for shipment costs.
Delivery Timing
Gas City Vapes Inc. does not guarantee at any time a certain delivery date or time frame for delivery for any product or order. Any listed time for a shipping method is an estimate only. For orders with deadlines please order well in advance.
Shipping Terms
Gas City Vapes Inc. is not responsible for lost, misplaced, or delayed shipments or damaged freight by the freight carriers after they have been dispatched.
Gas City Vapes Inc. cannot be held responsible / liable for lost or stolen packages that have delivery confirmation to the address that was provided. The customer accepts full responsibility to file any claim(s) with carrier for damaged and/or lost shipments.
We are not responsible for mis-delivery errors via carrier, or incorrect shipping info.
If you have any further questions please feel free to contact us at
sales@gascityvapes.com
RETURNS & WARRANTY
Returns, Refunds & Warranty
At Gas City Vapes, we want to ensure you are satisfied with your purchase. Please read our policy below regarding returns, warranties, and exchanges.
1. Final Sale & Non-Returnable Items
For sanitary and safety purposes, the following items are Final Sale and cannot be returned or exchanged once purchased or shipped, unless dead-on-arrival (DOA):
- E-Liquid and liquid products
- Disposable Vapes
- Pre-filled pods (including STLTH pods)
- Replacement Coils and Pods
- Rechargeable Batteries
- Atomizers / Tanks
- Opened or used non-defective items
2. Change of Mind (Unopened Items)
If you change your mind about a purchase, you may return unopened and unused items within 30 days of purchase for a full refund.
Gas City Vapes VIP Loyalty & Rewards Members enjoy an extended 60 day return window.
- Condition: Items must be in their original, sealed packaging.
- Shipping: The customer is responsible for return shipping costs. Shipping charges are non-refundable.
3. Hardware Warranty (Defects)
Hardware purchased directly from our website is covered by a 30-Day Limited Warranty from the date of delivery.
Gas City Vapes VIP Loyalty & Rewards Members enjoy an extended 60 day warranty.
- Coverage: This warranty covers manufacturing defects. It does not cover normal wear and tear, cosmetic issues (scratches/discoloration), accidents, abuse, disassembly, or user error.
- Packaging Requirement: Manufacturers require the original packaging (including outer sleeves and warranty cards) to process claims. Do not discard your packaging, or we may be unable to process your warranty.
- Compatibility: We do not guarantee compatibility between different items unless otherwise states. Incompatibility is not a valid reason for return.
- Cannabis/CBD Warning: Atomizers and devices sold here are for use with e-liquids only unless otherwise states. Use of cannabis/CBD oils or similar substances voids the warranty immediately.
4. Dead on Arrival (DOA) & Missing Items
Please inspect your package immediately upon delivery. Claims for "Dead on Arrival", missing items, or physical damage must be reported within 48 hours of delivery.
5. Incorrect Shipments
If we made a mistake and sent the wrong item, we will fix it at no cost to you.
- We will provide a pre-paid shipping label for you to return the incorrect item.
- Once the incorrect item is received back at our facility, we will immediately ship the correct product to you.
- Note: We cannot ship the replacement until the incorrect item is received or confirmed in transit.
6. Fees & Shipping Costs
- Return Shipping: Customers are responsible for return shipping costs for non-defective returns. We cover shipping costs for approved warranty replacements on our own shipping errors.
-
Restocking Fee (15%): A 15% fee may be deducted from your refund if:
- Returns are opened and found to be non-defective.
- Items are not cleaned/emptied prior to return
- The package was refused by the customer or carrier (shipping costs are also deducted in this case).
- Refund Methods: Refunds are issued to the original payment method or as store credit. We are not responsible for refunds to prepaid cards that are no longer in the customer's possession. We may require a copy of Photo ID to process certain refunds.
How to Initiate a Return
To start a return or warranty claim, please email us within the 30-day window.
Email: sales@gascityvapes.com
Please include the following in your email:
- Full Name
- Order Number
- Detailed explanation of the issue
- Photo or video proof of the defect (if applicable)
Once approved, you will receive further instructions. Replacements are shipping after the defective item is approved for warranty.
UWELL Caliburn G4 Pro KOKO Pod System [CRC]
The UWELL Caliburn G4 Pro KOKO represents a revolutionary leap forward in compact vaping technology. As UWELL's first-ever KOKO device with an intuitive touchscreen interface, this premium pod system combines cutting-edge smart features with the reliability and performance the Caliburn series is known for. Great for beginners looking for an easy-to-use device, as well as for experienced vapers seeking advanced customization, the G4 Pro KOKO delivers exceptional value with it's intuitive UI, extended battery life, and leak-resistant design.
Caliburn G4 Pro KOKO Pod System features:
Smart 2-inch HD Touchscreen
Say goodbye to confusing button combinations and cluttered menus. The Caliburn G4 Pro KOKO features a responsive 2-inch high-definition touchscreen designed exclusively for vapers. Access all core functions with a single tap — adjust wattage, switch between output modes, reset your puff counter, or customize your UI theme. The intuitive interface puts complete control at your fingertips without any learning curve.
With 8 language options (English, Arabic, Spanish, French, Russian, Italian, German, Indonesian), adjustable brightness and screen timeout settings, and the ability to toggle animations and battery saver modes, you can truly make this device your own.
Massive 2000mAh Battery for Non-Stop Vaping
Tired of constantly recharging your device? The G4 Pro KOKO packs a powerful 2000mAh battery - a 60% increase over previous KOKO models — providing up to 10 days of performance on a single charge. When it's time to recharge, the USB-C fast charging gets you back to vaping quickly, with a full charge in under 45 minutes.
Three Customizable Output Modes for Perfect Flavour
The G4 Pro Koko gives you complete control over your vaping experience with three distinct output modes, each designed for different preferences:
Storm Mode — Delivers intense throat hits and rapid vapor production for those who crave bold, powerful draws. Ideal for direct-lung vapers and those who prefer stronger nicotine satisfaction.
Waves Mode — Provides a smooth, consistent flavour delivery with balanced vapor production. Perfect for all-day vaping with e-liquids where you want to savor every note.
Custom Mode (NEW) — Take personalization to the next level by adjusting power output at the start, middle, and end of each puff. Create your ideal vape profile by fine-tuning how your device performs throughout the entire draw.
With a 5W to 35W output range, you have the flexibility to optimize performance for any e-liquid or coil resistance.
Full Compatibility with Caliburn GPP Pod Platform
The G4 Pro KOKO is fully compatible with the entire Caliburn GPP (G Pod Platform) cartridge ecosystem, giving you:
- Multiple coil resistance options
U² Anti-Leak Technology for Mess-Free Vaping
Nobody wants leaky pods ruining their pockets or bags. The G4 Pro KOKO features U² Anti-Leak Technology that keeps e-liquid where it belongs – in the pod. Combined with the top-fill design, you can refill without removing the cartridge, making the entire experience clean, convenient, and hassle-free.
The ergonomic contoured mouthpiece provides a smooth, comfortable draw that feels natural in your mouth, reducing fatigue during extended vaping sessions.
SHIPPING POLICY
Gas City Vapes offers same day shipping on all Domestic orders placed before 1pm MST with the exception of Holidays and weekends.
Last updated: February 3, 2026
If you do not see any available shipping options during checkout, please contact us directly so we can make alternative shipping arrangements for your order.
Proof of Age Required
Shipping in Canada
- British Columbia - Appx 3 Business Days
- Alberta - Appx 3 Business Days (Calgary = 1 Day, Edmonton = 2 Days)
- Saskatchewan - Appx 4 Business Days (Saskatoon & Regina = 3 Days)
- Manitoba - Appx 4 Business Days
- Ontario - Appx 4 Business Days
- Quebec - NO SHIPPING
- New Brunswick - Appx 8 Business Days
- Nova Scotia - Appx 8 Business Days
- PEI - Appx 8 Business Days
- Newfoundland - Appx 8 Business Days
- Nunavut - NO SHIPPING
- Northwest Territories - NO SHIPPING
- Yukon - Appx 13 Business Days
Please note all shipping times are appx and may be delayed if you live in a remote area of your province or if the shipping carrier has weather delays. If you require your package sooner than we offer with the free shipping option you can upgrade to Xpresspost for a fee and usually gets to you in half the amount of time.
United States Shipping
IMPORTANT UPDATES FOR U.S. CUSTOMERS
Due to the new U.S. Customs and Border Protection regulations, the way we ship orders to the United States is temporarily changing. Effective August 29, 2025, the U.S. has eliminated the duty-free exemption for all packages from Canada.
What This Means for Your Order:
New Orders (placed after August 28, 2025): We have temporarily suspended the ability to place U.S. orders directly through our website. We are actively working to implement a new system that will allow us to properly collect and prepay all required duties and taxes at the time of your purchase.
Orders Already Shipped (placed before August 29, 2025): IF your order was shipped before this change took effect, but has not arrived in the U.S., there's a significant risk of delay or refusal by U.S. Customs. Packages shipped under the old rules may be returned to us as non-compliant. Unfortunately, once a package is in transit, we have no control over its clearance process. We will monitor your tracking information and contact you immediately if we see any issues.
Need to Order Now? We're committed to serving our loyal U.S. customers. If you need to place an order and are having troubles or not seeing any shipping options at checkout, please contact us directly via phone or email. We will process your request manually and discuss any potential implications.
We sincerely apologize for any inconvenience this may cause and thank you for your patience as we navigate these complex changes. We appreciate your business and are working hard to make our U.S. shipping process as seamless as possible in compliance with all new regulations.
International Shipping Disclaimer
- You, the buyer, are responsible for any VAT, tariff, duty, taxes, handling fees, customs clearance charges, etc. required by your country for importing consumer goods. We do not collect this beforehand, and cannot give you an estimate of the cost - charges vary around the world.
- As an international consumer, please do your research to ensure there are no surprise charges when clearing your package through customs, and to have an idea of what the additional cost may be. If you are unfamiliar with customs fees and charges, please speak to your local postal or customs office for more information. It is your full responsibility to verify the customs, duties charges, and procedures in your country prior to placing your order.
- If customs fees and charges are refused at the time of delivery, your order will be returned and you will not receive a refund for shipment costs.
Delivery Timing
Gas City Vapes Inc. does not guarantee at any time a certain delivery date or time frame for delivery for any product or order. Any listed time for a shipping method is an estimate only. For orders with deadlines please order well in advance.
Shipping Terms
Gas City Vapes Inc. is not responsible for lost, misplaced, or delayed shipments or damaged freight by the freight carriers after they have been dispatched.
Gas City Vapes Inc. cannot be held responsible / liable for lost or stolen packages that have delivery confirmation to the address that was provided. The customer accepts full responsibility to file any claim(s) with carrier for damaged and/or lost shipments.
We are not responsible for mis-delivery errors via carrier, or incorrect shipping info.
If you have any further questions please feel free to contact us at
sales@gascityvapes.com
Returns, Refunds & Warranty
At Gas City Vapes, we want to ensure you are satisfied with your purchase. Please read our policy below regarding returns, warranties, and exchanges.
1. Final Sale & Non-Returnable Items
For sanitary and safety purposes, the following items are Final Sale and cannot be returned or exchanged once purchased or shipped, unless dead-on-arrival (DOA):
- E-Liquid and liquid products
- Disposable Vapes
- Pre-filled pods (including STLTH pods)
- Replacement Coils and Pods
- Rechargeable Batteries
- Atomizers / Tanks
- Opened or used non-defective items
2. Change of Mind (Unopened Items)
If you change your mind about a purchase, you may return unopened and unused items within 30 days of purchase for a full refund.
Gas City Vapes VIP Loyalty & Rewards Members enjoy an extended 60 day return window.
- Condition: Items must be in their original, sealed packaging.
- Shipping: The customer is responsible for return shipping costs. Shipping charges are non-refundable.
3. Hardware Warranty (Defects)
Hardware purchased directly from our website is covered by a 30-Day Limited Warranty from the date of delivery.
Gas City Vapes VIP Loyalty & Rewards Members enjoy an extended 60 day warranty.
- Coverage: This warranty covers manufacturing defects. It does not cover normal wear and tear, cosmetic issues (scratches/discoloration), accidents, abuse, disassembly, or user error.
- Packaging Requirement: Manufacturers require the original packaging (including outer sleeves and warranty cards) to process claims. Do not discard your packaging, or we may be unable to process your warranty.
- Compatibility: We do not guarantee compatibility between different items unless otherwise states. Incompatibility is not a valid reason for return.
- Cannabis/CBD Warning: Atomizers and devices sold here are for use with e-liquids only unless otherwise states. Use of cannabis/CBD oils or similar substances voids the warranty immediately.
4. Dead on Arrival (DOA) & Missing Items
Please inspect your package immediately upon delivery. Claims for "Dead on Arrival", missing items, or physical damage must be reported within 48 hours of delivery.
5. Incorrect Shipments
If we made a mistake and sent the wrong item, we will fix it at no cost to you.
- We will provide a pre-paid shipping label for you to return the incorrect item.
- Once the incorrect item is received back at our facility, we will immediately ship the correct product to you.
- Note: We cannot ship the replacement until the incorrect item is received or confirmed in transit.
6. Fees & Shipping Costs
- Return Shipping: Customers are responsible for return shipping costs for non-defective returns. We cover shipping costs for approved warranty replacements on our own shipping errors.
-
Restocking Fee (15%): A 15% fee may be deducted from your refund if:
- Returns are opened and found to be non-defective.
- Items are not cleaned/emptied prior to return
- The package was refused by the customer or carrier (shipping costs are also deducted in this case).
- Refund Methods: Refunds are issued to the original payment method or as store credit. We are not responsible for refunds to prepaid cards that are no longer in the customer's possession. We may require a copy of Photo ID to process certain refunds.
How to Initiate a Return
To start a return or warranty claim, please email us within the 30-day window.
Email: sales@gascityvapes.com
Please include the following in your email:
- Full Name
- Order Number
- Detailed explanation of the issue
- Photo or video proof of the defect (if applicable)
Once approved, you will receive further instructions. Replacements are shipping after the defective item is approved for warranty.
UWELL CALIBURN G4 PRO KOKO 35W POD KIT FAQ
Get answers to questions frequently asked about the UWELL CALIBURN G4 PRO KOKO 35W POD KIT.
How long does the 2000mAh battery last on the Caliburn G4 Pro KOKO?
The 2000mAh battery can last up to 10 days depending on your usage habits, wattage settings, and vaping frequency. Most moderate users experience 3-5 days of use between charges. Heavy users can still expect 1-2 days minimum. The device features USB-C fast charging, reaching a full charge in approximately 45 minutes, so even when the battery does run out, you're back to vaping quickly.
Are the Caliburn G4 Pro KOKO pods compatible with my older Caliburn G3 device?
Yes! The G4 Pro KOKO uses the Caliburn GPP (G Pod Platform) cartridges, which are fully compatible with Caliburn G3 series devices. You can use your existing G3 pods with the G4 Pro KOKO, and the newer upgraded GPP cartridges work interchangeably between both device generations. This means you're not locked into purchasing new pods when upgrading your device.
What's the difference between Storm, Waves, and Custom modes on the G4 Pro KOKO?
Each mode delivers a different vaping experience: Storm Mode: Provides intense throat hits with rapid vapor production, perfect for those who prefer strong, bold draws Waves Mode: Delivers smooth, consistent flavor with balanced vapor output for all-day vaping comfort Custom Mode: Allows you to adjust the power output at three stages (start, middle, end) of your puff, creating a completely personalized vape profile tailored to your exact preferences
How do I unlock the additional UI themes on my Caliburn G4 Pro KOKO?
The G4 Pro KOKO comes with 3 UI themes available immediately. The remaining 2 locked themes are unlocked through a blind-draw card game system when you reach puff milestones (every 2,000 puffs).
Is the Caliburn G4 Pro KOKO good for beginners, or is it too advanced?
The G4 Pro KOKO is excellent for beginners! While it offers advanced features, the touchscreen interface makes everything incredibly intuitive – no complicated button combinations to memorize. Simply tap to adjust settings. The U² anti-leak technology and top-fill design eliminate mess and frustration. New vapers can start with the default Waves mode for smooth draws, while the device grows with you as you become more experienced and want to explore Storm or Custom modes. The long battery life also means less charging hassle for first-time users.
