Off-Stamp vs iJOY XP100K (2026): Comparing Two Modular Disposable Vape Approaches

The disposable vape category has split in two directions. On one side, brands are pushing into ultra-high-capacity territory with hybrid systems that pair rechargeable batteries with refillable pods. On the other side, brands are doubling down on compact, magnetic modular designs that emphasize portability and reduced waste. Off-Stamp and the iJOY XP100K represent these two opposite philosophies. Both are modular. Both separate the battery from the pod. But the similarities largely end there. This Off-Stamp vs iJOY XP100K comparison breaks down the differences and which kind of adult user each suits best.

Quick Comparison Summary

If you only have 30 seconds: Off-Stamp is the compact, pocketable choice with frequent pod swaps and easy flavor rotation — best for light-to-moderate vapers who value simplicity and portability. The iJOY XP100K is the high-capacity, refillable powerhouse with explicit power modes and a large display — best for heavy daily vapers who want maximum capacity per kit.

At-a-glance specs comparison:

Note: This comparison focuses on the Off-Stamp SW series versus the iJOY XP100K. Off-Stamp’s newer X-Cube line is a separate, upgraded system and is mentioned where relevant.

What Is Off-Stamp?

Off-Stamp is a disposable vape brand under the Lost Mary umbrella, built around a magnetic two-piece design: a reusable rechargeable battery dock, and a small disposable pod containing the e-liquid, coil, and a tiny internal battery. The two halves connect magnetically to function as a complete device.

The brand’s SW series includes the Off-Stamp SW9000 (9,000 puffs, 13mL pod) and the Off-Stamp SW16000 (16,000 puffs, 17mL pod), both cross-compatible with the same battery dock. The newer X-Cube and Sweet Cube series introduce upgraded features like a TFT display and adjustable airflow, but use a different pod format. The core idea across the lineup is that disposables don’t have to be wasteful — keep the dock, swap the pod.

What Is the iJOY XP100K?

The iJOY XP100K sits at the opposite end of the modular disposable spectrum. iJOY originally built its reputation in advanced vape hardware — mods, tanks, and high-performance devices — and the XP100K reflects that engineering background applied to disposables.

Specifications: 1,500mAh combined battery (1,200mAh power bank + 300mAh pod), 33mL total e-liquid capacity (18mL prefilled pod + 15mL refill bottle), a 0.4-ohm dual mesh coil, adjustable airflow, dual power modes at 22W (Norm) and 26W (Boost), and a 2-inch smart display. Nicotine is 5% (50mg/mL). Puff rating is up to 100,000 in Norm Mode or 50,000 in Boost Mode. The refillable design is the XP100K’s defining feature — instead of swapping pods, users top up the existing one until the coil eventually wears out.

Head-to-Head: Design and Form Factor

Off-Stamp SW9000 and SW16000 devices are deliberately small — designed to fit in a coin pocket or palm — because the pod only needs to hold a small amount of e-liquid before being replaced. The magnetic connection between dock and pod makes assembly intuitive.

The iJOY XP100K is a larger, more substantial device. It needs to be — it houses a 1,200mAh power bank, a refillable 18mL pod, and a 2-inch screen. The form factor is closer to a small pod system than a pocket vape. For discreet portability, this size is a downside; for longevity and feature depth, the trade-off is reasonable.

Head-to-Head: Battery and Power

Off-Stamp’s SW series uses an 800mAh dock plus a 200mAh (SW9000) or 220mAh (SW16000) pod battery, for combined capacities around 1,000mAh. Power output is not formally advertised in watts; the system is tuned for a smooth, MTL-style draw rather than dense vapor.

The XP100K runs on 1,200mAh + 300mAh = 1,500mAh combined — roughly 50% more than Off-Stamp’s largest configuration. Power output is explicit: 22W in Norm Mode for longevity, or 26W in Boost Mode for stronger flavor and denser vapor. For users who want explicit power control, the XP100K wins; for users who prefer simple, consistent draws without configuration, Off-Stamp’s approach is more straightforward.

Head-to-Head: E-Liquid and Pod System

This is where the two products differ most fundamentally. Off-Stamp pods are prefilled and not user-refillable — once a pod is depleted, the user snaps a new pod onto the same battery dock. SW9000 pods hold 13mL; SW16000 pods hold 17mL. The simplicity is part of the appeal: no juice to handle, no refilling, no leak risk.

The XP100K takes a different route entirely. Each kit ships with an 18mL prefilled pod plus a separate 15mL refill bottle of the same flavor. When the pod runs low, users open a small plug on the inside of the pod and top it up. Total e-liquid capacity is 33mL — substantially more than any single Off-Stamp pod. The refillable design blurs the line between disposable and pod system. For some adult vapers this reduces waste; for others, refilling is friction they’d rather avoid.

Pricing and Long-Term Cost

Upfront pricing is similar — generally $10–$20 for a full kit. The interesting comparison is long-term cost per puff.

Off-Stamp’s ongoing spend is small, frequent pod purchases — each pod cheaper than a full disposable, with the flexibility to pick different flavors. The XP100K’s cost is front-loaded: the initial kit covers the device plus 33mL of e-liquid, enough for an extended use period. On strict cost-per-puff, the XP100K is usually cheaper for heavy users because 33mL stretches further than any single Off-Stamp pod. The catch: Off-Stamp users pay slightly more per puff but get flavor variety; XP100K users get the lowest cost per puff but commit to one flavor at a time.

Display and Visibility

Off-Stamp’s SW series uses a simple three-color LED battery indicator on the dock. The newer X-Cube and Sweet Cube series upgrade to a TFT display with animations and mode selection. The XP100K’s 2-inch smart display is one of the larger screens in the current disposable category, showing real-time e-liquid level, battery status, power mode, and puff data. For a refillable device where users need to know when to top up or recharge, the larger screen has real practical value.

Which One Is Right for You?

Off-Stamp Is Better For

iJOY XP100K Is Better For

Frequently Asked Questions

Off-Stamp vs iJOY XP100K: which is cheaper long-term?

On a strict cost-per-puff basis, the iJOY XP100K is usually cheaper for heavy users because the 33mL of included e-liquid covers an extended use period. Off-Stamp’s ongoing pod costs are lower per purchase but accumulate over time. XP100K wins on raw cost efficiency; Off-Stamp wins on flexibility.

Is the iJOY XP100K really good for 100,000 puffs?

The 100,000-puff rating assumes Norm Mode use with the included refill bottle. Boost Mode drops the rating to approximately 50,000 puffs. Real-world performance depends on draw length, frequency, and mode selection.

Are Off-Stamp SW9000 pods compatible with the X-Cube?

No. The Off-Stamp X-Cube series uses a different pod format and is not compatible with SW9000 or SW16000 pods. The SW9000 and SW16000 pods are cross-compatible with each other on the SW dock, but the X-Cube is a separate system.

Final Thoughts

Off-Stamp and the iJOY XP100K are both legitimate answers to the same underlying question, but they answer it in opposite ways. Off-Stamp goes small and frequent. The XP100K goes large and refillable. If you’re still deciding: start with Off-Stamp if you’re a casual vaper who values portability and flavor variety. Choose the iJOY XP100K if you vape heavily, want the lowest long-term cost per puff, and don’t mind the larger form factor. Neither is universally better — the right choice depends on what you value most.

This article is for product information only. It is not medical advice and is not intended for minors or non-nicotine users. Nicotine is addictive, and vape products should only be used by adults who meet the legal age requirements in their location.