In the ever-evolving world of pod vapes, Vaporesso’s XROS series has gained a reputation for reliability, performance, and sleek design. Two standout models from the lineup are the XROS 3 Nano and the newly launched XROS 4 Nano. Both offer compelling features for mouth-to-lung (MTL) and restricted direct-lung (RDL) vapers, but which one truly holds the edge in 2025? Let’s dive into a head-to-head review, comparing the design, features, and overall vaping experience of these two compact powerhouses.
Design & Aesthetics
XROS 3 Nano keeps things compact, colorful, and stylish. With its square-like form factor, bold color palette (10 in total), and free lanyard included, it’s aimed at vapers who love portability without sacrificing personality. The device is light (just 52.6g), fits perfectly in your hand or pocket, and adds flair to your daily carry.
XROS 4 Nano, on the other hand, elevates design with functionality. It maintains the minimal size but introduces a 1.3-inch TFT color screen—a first in the XROS lineup. The screen displays battery, mode, and power level, giving it a modern tech-savvy edge. The 4 Nano also offers three screen themes, allowing a touch of personalization for vapers who want more than just color.
👉 Verdict: XROS 3 Nano wins for pure style and portability, but XROS 4 Nano dominates in utility and modern visual interface.
Battery & Charging
This is one area where the difference is night and day.
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XROS 3 Nano offers a 1000mAh battery, capable of delivering up to 48 hours on a single charge, powered by the dependable AXON Chip with Pulse Mode.
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XROS 4 Nano steps things up significantly with a massive 1350mAh battery and 2A fast charging, reaching 80% in just 30 minutes. It easily stretches up to 4 days of use, a major convenience for heavy vapers or travelers.
Verdict: XROS 4 Nano wins clearly with longer battery life and much faster charging.
Pods & Flavor Experience
Both devices are compatible with the entire XROS pod family, which includes options from 0.4Ω to 1.2Ω. However, there are some key differences:
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XROS 3 Nano ships with the newer 0.6Ω RDL pod, delivering strong flavor and smoother hits, especially for those who enjoy both freebase and nic salts. The pod uses COREX cotton for better liquid absorption and longevity, with up to 20 days of pod lifespan.
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XROS 4 Nano introduces COREX 2.0, a significant upgrade in mesh structure and cotton delivery. The flavor is richer, heating is faster, and pod lifespan is increased by 30%. It also supports a larger 3ml pod, reducing the need for frequent refills. With airflow control and power adjustability (especially in the 0.4Ω pod), you get precision in every puff.
Verdict: XROS 4 Nano wins again, offering more flavor depth, longer-lasting pods, and better control.
User Experience & Controls
The XROS 3 Nano is as simple as it gets: no buttons, auto-draw, and smart LED indicators to show battery status. It’s perfect for casual or beginner vapers who want a no-fuss experience.
The XROS 4 Nano, however, is more interactive:
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Dual activation (auto-draw + button)
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Adjustable airflow and power modes
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Multi-click controls for menu, locking, and power settings
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Large screen for easy visibility
Despite its added functionality, Vaporesso has kept the UI intuitive and beginner-friendly.
Verdict: XROS 4 Nano wins for users who want more control and customization; XROS 3 Nano remains ideal for minimalists.
Conclusion
If you’re looking for a stylish, compact, and straightforward vape that performs reliably and looks great doing it, the XROS 3 Nano is still a fantastic choice—especially at its lower price point (MSRP $36.9).
However, if you’re after performance, customization, longer battery life, and advanced tech, the XROS 4 Nano is the undisputed upgrade. From the vivid TFT display to COREX 2.0 and fast charging, it’s built for vapers who want the best of 2025 in their pocket.
Final Word:
- Go for XROS 3 Nano if you want ultra simplicity and style.
- Upgrade to XROS 4 Nano if you crave next-gen features, longer life, and better flavor.
Either way, Vaporesso continues to lead the way in redefining the pod vape experience.
Read Also: Vaporesso XROS 5 vs XROS Pro – Which One Deserves a Spot in Your Pocket?