Lost Mary NERA 70K vs Off Stamp X-CUBE 25K — Sister Brands Face Off
Both powered by Lost Mary technology, but very different devices. The NERA's 70K capacity and transparent tank vs the X-CUBE's 1100mAh battery, Sweet Cube flavor control, and 2.25" TFT screen. Which Lost Mary sub-brand delivers better value?
Full Specs Comparison
| Spec | NERA Fullview 70K | Off Stamp X-CUBE 25K |
|---|---|---|
| Max Puffs | 70,000 | 25,000 |
| E-Liquid | 24mL (2 × 12mL pods) | 18mL per pod |
| Battery (Dock) | 800mAh | 1000–1100mAh |
| Pod Battery | None | 100mAh (standalone capable) |
| Power Modes | 2 (Normal / Turbo) | 3 (Light / Normal / Turbo) |
| Display | 3D curved screen | 2.25" TFT color screen with animations |
| Transparent Tank | Yes | No |
| Airflow | Fixed | Adjustable lever |
| Flavor Control | None | Sweet Cube: 3-level sweetness adjustment |
| Pods Included | 2 pods (2 flavors) | 1 pod |
| Pod Types | Standard | Classic Cube + Sweet Cube (dual-tank) |
| Flavors | 10 | 16+ (across Classic + Sweet) |
| Price (Kit) | ~$27.99 | ~$15.99–22.99 |
| Cost per 1K Puffs (Kit) | $0.40 | $0.64–0.92 |
Key Differences
Capacity: NERA Dominates
The NERA delivers 2.8× the puffs of the X-CUBE (70K vs 25K) with 33% more e-liquid (24mL vs 18mL). The NERA's two-pod starter kit means you also get two different flavors immediately. For sheer longevity, the NERA is in a different league. This is the single biggest differentiator between these two devices.
Features: X-CUBE Is Loaded
The X-CUBE compensates for lower capacity with a feature-rich experience. Its 2.25" TFT color screen is larger and more detailed than the NERA's 3D curved display, showing battery, e-liquid, power mode, and customizable animations with brightness control. Three power modes (Light/Normal/Turbo) plus an adjustable airflow lever offer more customization than the NERA's two modes with fixed airflow.
The X-CUBE's standout feature is the Sweet Cube pod variant — a dual-tank design with 3-level sweetness adjustment. Press the sweetness button to increase or decrease the sweet undertone in any flavor. No other Lost Mary device offers this kind of real-time flavor tuning. If you value flavor customization, the X-CUBE is unmatched.
Family Connection: Both Are Lost Mary
A key detail many buyers miss: Off Stamp is a sub-brand powered by Lost Mary technology. The X-CUBE uses Lost Mary's coil design, e-liquid formulations, and flavor profiles. Many X-CUBE flavors (Blue Razz Ice, Dragon Strawnana, Miami Mint) are the same formulations found on Lost Mary devices. Choosing between these two is essentially choosing between different hardware from the same flavor house.
Value: NERA Wins on Long-Term Cost
The X-CUBE has a lower entry price ($15.99–22.99 vs $27.99), but the NERA's cost per 1,000 puffs is significantly better ($0.40 vs $0.64–0.92). Over a month of regular use, NERA users spend 30–50% less on pods. The NERA's economics get even better with replacement pod 2-packs at $12–15 ($0.17–0.21/1K puffs).
Our Verdict
NERA Fullview 70K
Best for: capacity, value, transparent tank, simplicity
Off Stamp X-CUBE 25K
Best for: features, flavor control, display, lower entry price
The NERA 70K is our pick for most users. Nearly 3× the capacity at a lower cost per puff — that's hard to argue with. The transparent tank and simple dual-mode design make it effortless to use.
But the X-CUBE is the better choice if you want the Sweet Cube's sweetness adjustment, a bigger screen with custom animations, adjustable airflow, or a lower upfront spend. Both devices share Lost Mary's excellent flavor DNA, so you're getting great taste either way.
Frequently Asked Questions
Is Off Stamp the same as Lost Mary?
Off Stamp is a sub-brand powered by Lost Mary technology. They share the same parent company (iMiracle Technology) and the same e-liquid formulations. Many Off Stamp flavors are identical to Lost Mary flavors. The main difference is hardware design — Off Stamp focuses on modular, feature-rich form factors while Lost Mary covers the full device range.
Can the X-CUBE pod work without the battery dock?
Yes — the X-CUBE pod has a built-in 100mAh battery and can be vaped standalone. However, the experience is limited: no screen, no power mode selection, and battery drains quickly. The pod is designed primarily for occasional use without the dock (like when charging the battery), not as a standalone daily driver.
What's the Sweet Cube and is it worth it?
The Sweet Cube is an X-CUBE pod variant with a dual-tank design and 3-level sweetness adjustment. Press the sweetness button to customize how sweet each flavor tastes. It's a unique feature not available on any Lost Mary device. Worth it if you like tweaking flavor profiles — skip it if you prefer consistent, set-it-and-forget-it vaping.