By Spinfuel Editorial • Nashua, NH • March 24, 2026
Approximately two years ago, our review of the original Innokin Proton mod highlighted its robust build but criticized its flawed user interface. The joystick controller, in particular, was noted for its sluggish response, awkward operation, and propensity for accidental setting adjustments. Despite these shortcomings, the device offered a satisfactory vaping experience, complemented by the performance of the included SCION 2 tank.
Today, Innokin introduces the redesigned Innokin Proton Plex. This iteration features substantial improvements to both the mod and the tank, which now incorporates the highly regarded Plexus coils. The core question remains: have Innokin successfully addressed the previous generation’s issues, or does this new release present a similar experience? This review aims to answer that.
The Innokin Proton mod maintains its signature elegant and ergonomic design, ensuring a comfortable grip and compact profile. A prominent 1.45-inch TFT full-color display dominates the front panel. The most significant enhancements are found within its core: an upgraded chipset and, crucially, a vastly improved joystick controller. Menu navigation is now fluid, intuitive, and remarkably responsive, indicating that Innokin has actively incorporated user feedback.
The menu structure largely preserves its comprehensive layout, offering familiar modes such as Variable Wattage, Temperature Control (supporting Ni, Ti, SS), TCR, and Bypass. The inclusion of custom TCR settings remains a valuable feature for advanced users. A subtle yet welcome addition is the “vape time” counter, which displays puff duration directly on the screen during activation.
Innokin Proton Plex Review
Introducing the Plex Tank
For many, the standout component of this release is the new Plex tank. While its predecessor, the SCION 2, performed adequately, the Plex tank represents a substantial upgrade, largely attributable to Innokin’s innovative Plexus coils. These advanced mesh coils deliver rapid heating, superior flavor rendition, and impressive vapor density.
The Plex tank arrives with two dedicated wattage-mode coils: a pre-installed 0.13-ohm Plexus coil and an additional 0.15-ohm Plexus coil. Featuring a 4ml e-liquid capacity, the tank incorporates a user-friendly sliding top-fill mechanism and precise adjustable bottom airflow. The airflow system provides a smooth and consistent draw, facilitating an enjoyable direct-to-lung vaping experience. The tank’s exceptional build quality seamlessly complements the Proton mod’s design aesthetics.
Performance Evaluation
Performance in Wattage Mode
The Innokin Proton Plex truly distinguishes itself in wattage mode. Utilizing the 0.13-ohm Plexus coil, an initial wattage of 60W was incrementally increased, with the optimal performance zone identified around 75W. At this setting, the flavor profile was intensely rich, and vapor production was notably dense and gratifying. The rapid ramp-up, a characteristic advantage of mesh coil technology, was virtually instantaneous.
Transitioning to the 0.15-ohm Plexus coil yielded comparable performance, though with a slightly lower optimal wattage of approximately 70W. Both coils demonstrated remarkable consistency over prolonged periods of use, with no instances of dry hits or leakage. The dual 18650 battery configuration provided outstanding battery longevity, comfortably supporting a full day of moderate to heavy vaping at the 70-75W range.
Performance in Temperature Control
Historically, Innokin’s Temperature Control (TC) performance has been variable; however, the updated chipset within the Proton Plex delivers a consistently superior TC experience. My primary testing involved SS316L coils (used with my own rebuildable atomizer, as these are not included), configured with appropriate TCR settings. Commencing at 400°F (204°C) with 60W, the vaping experience was smooth, consistent, and remarkably flavorful. Temperature fluctuations were imperceptible, and the device maintained a stable vape throughout extended draws. Subsequent testing with pre-made Ni200 coils yielded equally impressive results.
It appears Innokin has successfully refined its TC algorithm. This represents a substantial enhancement over the original Proton, positioning the Proton Plex as a versatile choice for both wattage and temperature control aficionados.
Pros and Cons
Pros:
Exceptional flavor and vapor production from the Plex tank and Plexus coils.
Significantly improved joystick responsiveness and user interface.
Accurate and consistent temperature control performance.
Ergonomic and compact design for comfortable handling.
Extended battery life provided by dual 18650 cells.
Near-instantaneous ramp-up time.
Cons:
No significant drawbacks identified; this is a remarkably solid kit.
Conclusion
Innokin merits commendation for their exemplary work on the Proton Plex kit. They have demonstrably responded to user feedback, effectively resolving the primary concerns associated with the original Proton, and have delivered a truly refined, high-performance device. The enhanced joystick functionality, precise temperature control, and particularly the outstanding Plex tank with its Plexus coils, collectively elevate this product to a prominent position in the market.
Regardless of whether one is a novice or an experienced vaper, the Innokin Proton Plex provides a premium vaping experience. It stands as one of Innokin’s most impressive releases in recent memory, earning our strong recommendation and a perfect 5 out of 5-star rating.
