The Eleaf iStick XC100 and Innokin Coolfire Z80 Nex are both single-battery mod-style devices aimed at users who want a dedicated tank setup rather than a pod system. They differ in stated output and in how much detail each manufacturer publishes about batteries, coils, and protections.
This comparison sticks strictly to the published specs and notes for each device, and calls out plainly where the data is too thin on either side to declare a winner.
| Spec | Eleaf iStick XC100 | Innokin Coolfire Z80 Nex |
|---|---|---|
| Image |  |  |
| Max outputPerformance | 🏆 100 W | 80 W |
| Battery typeBattery | Single 18650 or 21700 | Replaceable 18650 |
| DisplayConvenience | Yes | Yes |
| Charging portBattery | USB Type-C | USB-C |
| Coil/tank compatibilityCapacity | EC-D, EC-A, EC-2, EC-M, EC-N | Full Z Coil series |
| Vaping stylePerformance | DTL | Not stated |
| Safety protectionsBuild | Over-charge, low battery, over-current, over 10s cutoff, short circuit, reverse polarity | Not stated |
| Build materialBuild | Aluminum alloy | Zinc alloy, PCTG, leather |
| Best US priceat time of comparison | $39.99* | $45.77* |
| Read Review & Best Price | Read Review & Best Price |
* Lowest US price we found on 26 Aug 2026. Prices change often — see each review below for live pricing.
Performance
The Eleaf iStick XC100 wins on Performance based on its stated maximum output of 100 W against the Innokin Coolfire Z80 Nex’s 80 W. A higher wattage ceiling generally allows for more headroom with sub-ohm coils and denser vapor production, so on paper the XC100 offers more flexibility at the top end of its power range.
Battery
Battery is marked as insufficient evidence. The Eleaf iStick XC100 lists a single 18650 or 21700 cell while the Innokin Coolfire Z80 Nex lists a replaceable 18650, but without matching details like capacity, discharge rating, or battery life, there is not enough comparable data to call this category.
Convenience
Convenience is a tie. Both devices include a display and a USB-C style charging port (the XC100 specifies USB Type-C, the Z80 Nex USB-C), so day-to-day usability such as checking settings on screen and charging via a common cable is equivalent based on what’s stated.
Capacity
Capacity is marked as insufficient evidence. Neither the tank/juice capacity nor coil output volume figures are provided for either device, so no meaningful comparison can be made here.
Build
Build is marked as insufficient evidence. The Eleaf iStick XC100 is built from aluminum alloy while the Innokin Coolfire Z80 Nex combines zinc alloy, PCTG, and leather. These are different material approaches, but without durability, weight, or dimension data to compare, no winner can be determined.
The Eleaf iStick XC100 suits vapers who specifically want a higher maximum wattage ceiling, given its confirmed 100 W output versus the Z80 Nex's 80 W.
The Innokin Coolfire Z80 Nex suits vapers who are comfortable with a lower 80 W ceiling and want a device built with zinc alloy, PCTG, and leather materials, without needing to compare battery or capacity specifics not provided here.
The verdict
The Eleaf iStick XC100 and Innokin Coolfire Z80 Nex land in different spots depending on what matters most to a given buyer. The XC100 has a clear, code-confirmed edge in maximum output at 100 W versus 80 W, and the two devices tie on convenience features like display and USB-C charging. Battery, capacity, and build come back as insufficient evidence because the published facts don’t line up closely enough to compare directly, and that gap should be filled in with further research rather than guesswork before making a final call based on those categories.