Uwell Caliburn G4 Pod System Kit

Uwell Caliburn G4 35W Pod System Kit, 8 Colours, UAE Stock

The Caliburn G4 is Uwell’s most fully featured pod system in the Caliburn lineup. It runs on the GPP coil platform, supports four resistance options, brings a colour display with customisable UI, and introduces two output modes that give you direct control over how each puff feels. You can find this alongside other devices in the vape kit section on Vapbuzz, where pod systems across all wattage ranges are listed in one place.

The G4 is built for vapers who have outgrown basic pod devices but do not want the complexity of a full box mod. Everything is controlled through a single button and the draw activation system, and the two vaping modes mean you can shift between a flavour-focused draw and a more intense hit without changing any settings. The Vapbuzz store has the full colour range in stock if you want to compare the eight available finishes before ordering.

Full Specifications at a Glance

Storm Mode vs Waves Mode: Which One Suits Your Vaping Style

The two output modes on the G4 are the defining feature that separates it from the standard Caliburn range. They are not just wattage presets with different labels. Each mode applies a different power delivery curve across the duration of a puff.

Storm Mode fires at maximum output the moment you draw. The hit is immediate and intense, with higher vapour density and a more pronounced throat sensation. This mode suits vapers who prefer a direct lung draw or anyone who wants the strongest flavour impact from the first second of each puff. It consumes more battery and e-liquid per draw than Waves Mode.

Waves Mode applies a graduated power curve. Output builds gradually across the puff rather than peaking at the start. The result is a smoother, more consistent draw with less throat impact and a cleaner, more even flavour delivery from start to finish. This is the mode most suited to mouth to lung vaping and to nicotine salt liquids where a sudden high-output hit can feel too sharp.

Switching between modes takes one button press and the display updates immediately to confirm the active mode. You can find the G4 alongside other pod system kits in the vape kit category on Vapbuzz.

Which GPP Coil Resistance to Pick for Your Nicotine Type

The G4 runs on the Caliburn GPP coil platform, which currently covers four resistance options. The kit ships with a 0.4 ohm and a 0.9 ohm pod already installed.

0.4 ohm GPP runs at higher wattage and suits direct lung and restricted direct lung vaping with freebase nicotine at 3mg to 6mg. Vapour production is higher and the draw is more open.

0.6 ohm GPP sits between the 0.4 and 0.9 ohm options. It works for both RDL and tighter MTL vaping and is the most flexible resistance in the GPP range for vapers who switch between styles.

0.9 ohm GPP is the MTL coil in the range. It runs at lower wattage, produces a tighter draw, and works well with nicotine salts at 20mg to 50mg. This is the coil that ships in the box alongside the 0.4 ohm.

1.2 ohm GPP is the highest resistance option and the tightest draw. It suits vapers who want a draw closest to a cigarette and those using high-strength nicotine salts.

One important compatibility note: the G4 also accepts Caliburn G3 pods, so if you already own G3 pods they will work on the G4 without any adapter. This is confirmed backward compatibility, not an unofficial workaround.

Why the G4 Pod Does Not Leak in Your Pocket

The GPP pods used on the G4 use two engineering features to prevent leaking. The first is ultrasonic welding on the pod seams, which creates a bond stronger and more airtight than adhesive-based assembly. The second is a U-shaped internal airflow channel that manages the direction of liquid flow within the pod and reduces the chance of e-liquid reaching the airflow path. The combination of these two features is what Uwell refers to as U² technology. In practical terms it means the G4 handles pocket carry and bag storage without the leaking issues that affect pod systems with looser pod construction.

How the Airflow Adjustment Changes Your Draw from MTL to RDL

The G4 has a physical airflow adjustment that lets you move between a tight MTL draw and a more open RDL draw without switching modes or changing the pod. The airflow and the output mode work independently, so you can combine Storm Mode with a tight airflow for a strong, concentrated hit or Waves Mode with an open airflow for a smooth, airy draw. This gives four distinct draw combinations from one device without any menu navigation. You can browse the full range of pod systems and starter kits in the vape kit section on Vapbuzz to see how the G4 compares against other devices at this wattage level.

Eight Colour Options and What the Aluminium Finish Means for Durability

The Caliburn G4 is available in eight finishes, all in stock on Vapbuzz:

Flamingo Red, Glacier Blue, Gunmetal Grey, Karst Grey, Polar Black, Sahara Gold, Seashell White, Twilight Silver.

The aluminium alloy body means the colour finish is part of the material rather than a paint layer over plastic, which holds up better to daily carry and handling.

What Is in the Box

1x Caliburn G4 Device
1x 0.4 ohm Caliburn GPP Integrated Coil Cartridge (side refill)
1x 0.9 ohm Caliburn GPP Integrated Coil Cartridge (side refill)
1x User Manual

Frequently Asked Questions

Is the Caliburn G4 compatible with G3 pods?

Yes. The G4 accepts both Caliburn GPP cartridges and Caliburn G3 pods. If you are upgrading from a G3, your existing pods will work on the G4 immediately.

What is the difference between Storm Mode and Waves Mode?

Storm Mode delivers maximum output from the first moment of the draw for an immediate, intense hit. Waves Mode uses a graduated power curve for a smoother, more consistent draw. The right choice depends on your vaping style and the nicotine strength of your liquid.

What coil resistances does the GPP platform support?

The GPP platform covers 0.4, 0.6, 0.9, and 1.2 ohm options. The kit includes the 0.4 ohm and 0.9 ohm pods. Additional coils are available separately.

How long does the 1300mAh battery last?

Under moderate daily use in Waves Mode, the 1300mAh battery typically lasts a full day. Storm Mode at higher wattage will reduce that. The USB-C 5V/2A charging brings it back to full quickly.

Can I use nicotine salts in the Caliburn G4?

Yes. The 0.9 ohm and 1.2 ohm GPP pods are suited to nicotine salts at 20mg to 50mg. The 0.4 ohm pod at higher wattage is better suited to freebase nicotine at 3mg to 6mg.

Does the G4 have button activation or is it draw only?

Both. The G4 supports draw-activated firing and button-activated firing. You can press and hold the control button while inhaling or simply draw from the mouthpiece without pressing anything.