Versus SPE Hydrogen Water Bottle: Tested Portable Fitness Hydration. Travel-efficient Surprise! We were intrigued by the promise of hydrogen-infused hydration, but the 420ml SPE PEM generator stood out for its portability. Unboxing, we noted the sleek design, though setup was straightforward. The hydration experience was satisfying—clean, on-the-go refills, and no bulky attachments. Testing during a long flight, we noticed a subtle freshness in the water, likely from the advanced electrolysis, which delivered oxygen-rich drinks without the typical plastic taste. Our travel tests confirmed its efficiency: lightweight, durable, and quick to operate. While the hydrogen boost is subtle, the convenience of purifying water anywhere is unmatched. We appreciate the balance of functionality and style, though an app integration for hydrogen levels would be a welcome upgrade. Overall, it’s a smart choice for health-conscious, active lifestyles.