The Caliburn line has been the gold standard for pod systems in Canada for years. That is not marketing language. It is what happens when a manufacturer gets the fundamentals right and keeps iterating instead of chasing gimmicks. The Caliburn G4 is the best version yet: adjustable wattage from 5 to 35W, adjustable airflow, an animated 0.88" OLED screen, and two draw modes (Storm and Wave) packed into a 54.7g aluminum alloy body.
It is not trying to be a mod. It is a pod system that acts like one when it needs to. Backward compatible with Caliburn G3 and GPP pods, powered by a 1300mAh battery with USB-C 5V/2A charging, and available in 8 colours. The G4 gives the user more control without adding complexity.
Quick Links: Caliburn GPP Replacement Pods · Caliburn G3 Replacement Pods
Uwell Caliburn G4 Pod Kit Specs at a Glance
| Spec |
Details |
| Battery |
1300mAh |
| Wattage Range |
5-35W (adjustable) |
| Coil Range |
0.4-0.9ohm |
| Display |
0.88" animated OLED |
| Draw Modes |
Storm Mode + Wave Mode |
| Airflow |
Adjustable (side switch) |
| Pod Capacity |
2mL CRC |
| Included Pods |
0.4ohm + 0.9ohm |
| Pod Compatibility |
Caliburn G3 / GPP pods |
| Charging |
USB-C 5V/2A |
| Dimensions |
26 x 15.65 x 111.98mm |
| Weight |
54.7g |
| Body Material |
Aluminum alloy |
| Colours Available |
8 |
Storm Mode vs Wave Mode
The Caliburn G4 ships with two distinct power delivery modes. They do not change the wattage ceiling. They change how that wattage is delivered during a draw.
Storm Mode (Punchy Hit)
Delivers full wattage immediately from the first millisecond of a draw. The coil fires at peak power right away, producing a punchy, intense hit with strong throat feel. Best for MTL vapers who want immediate satisfaction, especially with salt nicotine at higher strengths.
Wave Mode (Gentle Draw)
Ramps wattage up gradually over the course of a draw. The result is a smoother, gentler pull that builds flavour progressively. Ideal for longer, slower draws and for vapers who find an instant power hit too aggressive. Pairs well with the 0.4ohm pod at lower wattages.
Both modes use the same wattage setting. The difference is purely in how power ramps during a puff. Storm is for short, sharp MTL hits. Wave is for relaxed, flavour-focused draws. The Caliburn G4 also supports both auto-draw and button-fire, giving four effective combinations to customize the experience.
What is in the Box
The Caliburn G4 ships with everything needed to start vaping immediately. The kit includes the Caliburn G4 device, one 0.4ohm pod (restricted DL), one 0.9ohm pod (MTL), a USB-C charging cable, and the user manual. No e-liquid is included. The two pod options let new users try both draw styles before committing to replacement stock.
8 Colours Available
The Caliburn G4 is available in 8 finishes: Flamingo Red, Glacier Blue, Gunmetal Grey, Karst Grey, Polar Black, Sahara Gold, Seashell White, and Twilight Silver. All use the same aluminum alloy body construction.
How Does It Compare?
The Caliburn G4 competes directly with two other premium pod systems in the same class.
📊 Caliburn G4 vs. XROS 5 vs. Xlim Pro 3
| Feature |
Caliburn G4 |
Vaporesso XROS 5 |
OXVA Xlim Pro 3 |
| Battery |
1300mAh |
1500mAh |
1300mAh |
| Max Wattage |
35W |
30W |
35W |
| Display |
0.88" animated OLED |
OLED |
OLED |
| Adjustable Wattage |
Yes (5-35W) |
Yes |
Yes |
| Adjustable Airflow |
Yes (side switch) |
Yes |
Yes |
| Pod Capacity |
2mL CRC |
2mL |
2mL |
| Pod Compatibility |
Caliburn G3/GPP |
XROS pods |
Xlim pods |
| Draw Modes |
Storm + Wave |
Pulse + Eco |
Standard |
| Coil Technology |
Uwell Pro-FOCS |
Corex 3.0 |
Top airflow mesh |
Bottom line: All three are excellent modern pod systems with adjustable wattage and airflow. The Caliburn G4 edges ahead on display quality (animated OLED) and the Storm/Wave mode system. The XROS 5 offers a slightly larger battery at 1500mAh, which matters for heavier users. The Caliburn G4's backward compatibility with G3/GPP pods is a practical advantage for anyone already in the Caliburn ecosystem.
Frequently Asked Questions
What pods are compatible with the Uwell Caliburn G4 Pod Kit?
The Caliburn G4 uses Caliburn G3 and Caliburn GPP replacement pods. It ships with one 0.4ohm pod and one 0.9ohm pod. The G3 and GPP pods are cross-compatible, so either type works in the G4 device. This backward compatibility means existing Caliburn G3 users can upgrade without buying new pod stock.
What is the battery life of the Uwell Caliburn G4 Pod Kit?
The Caliburn G4 has a 1300mAh battery. Real-world battery life depends on wattage setting and draw frequency, but most users can expect a full day of moderate use on a single charge. Higher wattage settings (closer to 35W) will drain the battery faster. Charging is via USB-C at 5V/2A, so a full recharge takes roughly 30 to 45 minutes.
What is the difference between Storm Mode and Wave Mode on the Caliburn G4?
Storm Mode fires at full wattage instantly, delivering a punchy hit from the very start of a draw. Wave Mode ramps wattage up gradually, creating a smoother and more gradual experience. Storm Mode suits MTL vapers who want immediate satisfaction. Wave Mode is better for longer, gentler draws. Both modes use the same wattage setting; the difference is in how power is delivered over time.
Is the Uwell Caliburn G4 Pod Kit good for beginners?
Yes. The Caliburn line has long been the standard recommendation for first-time vapers, and the G4 continues that tradition. The 0.9ohm pod provides a tight MTL draw that mimics the feel of a cigarette. Adjustable wattage and airflow mean the experience can be dialled in without needing a separate device. The OLED screen makes it easy to see settings at a glance rather than guessing.
Can the Uwell Caliburn G4 Pod Kit be used with salt nicotine?
Absolutely. The 0.9ohm pod paired with Storm Mode is an excellent salt nic setup. Salt nicotine at 20mg works well in the 10-15W range with the 0.9ohm pod for a satisfying MTL experience. The 0.4ohm pod can also be used with lower-strength salt nic (12mg or below), but the 0.9ohm is the natural pairing for the higher strengths most salt nic users prefer.
How does the Uwell Caliburn G4 Pod Kit airflow adjustment work?
The airflow is controlled by a physical side switch on the device. Sliding it adjusts the amount of air that enters the pod during a draw. A more closed position creates a tighter, cigarette-like MTL draw. A more open position loosens the draw for restricted direct-lung hits. The adjustment is stepless, so any position between fully open and fully closed is available.
What is the difference between the 0.4ohm and 0.9ohm pods for the Caliburn G4?
The 0.4ohm pod runs at higher wattage (up to 35W) and produces a warmer, looser restricted direct-lung draw with more vapour. Best for freebase e-liquid at 3-6mg. The 0.9ohm pod runs at lower wattage (10-15W) and delivers a tighter MTL draw with less vapour and more throat hit. Best for salt nicotine at 20mg or higher. The G4 ships with both so new users can try each style.
Does the Uwell Caliburn G4 Pod Kit support auto-draw?
Yes. The Caliburn G4 supports both auto-draw (inhale-activated) and button-fire. Auto-draw activates the coil when a draw is detected, no button press needed. Button-fire gives more precise control over when the coil fires. Both activation methods work with either draw mode (Storm or Wave), giving four effective combinations to customize the experience.
