Is wireless charging slower than wired charging?

Why did people think wireless charging was slower?

When the first Qi chargers appeared in the early 2010s, they delivered around 5W of power, comparable to a standard USB-A plug. In contrast, wired charging was already offering 15W back then, which meant that it was ages ahead of wireless charging. Which was once true, has been long been proven wrong especially with the release of Qi2.2 that offers 25W of power, just as fast as wired charging nowadays (2025).

Early coil technology also had limited alignment precision, leading to energy loss and heat.

The result: slower charging and a reputation that wireless charging couldn’t compete. That time is over.

The fact: Wireless charging has caught up, and keeps improving

The latest Qi2 and recently released Qi2.2 standards have transformed how efficiently energy moves between your device and charger. With magnetic alignment, intelligent power delivery, and adaptive charging, wireless charging is now faster, safer, and more consistent than ever.

1. Magnetic precision for maximum efficiency: The Qi2 standard, released in 2023 and inspired by Apple’s MagSafe technology, uses magnetic alignment so your device always sits perfectly in place. This minimizes power loss and ensures optimal energy transfer every time.
2. Intelligent power delivery: Qi2 chargers automatically adjust their output to your device’s needs. This smart energy management ensures fast, safe charging without overheating, ideal for users who value both performance and device protection.
3. Comparable speeds to modern wired chargers: With Qi2-certified chargers delivering up to 15W and beyond, wireless charging now equals or exceeds the performance of many wired chargers. The Qi2.2 standard will push this even further, improving speed while maintaining temperature control.
4. Consistent power, every time: Unlike cables that wear out or lose efficiency, wireless chargers deliver steady performance, charge after charge. No broken cords, no loose connections, just seamless, reliable power.

More than speed: Smarter energy for longer battery life

Wireless charging is not just about convenience or speed. It’s about battery health. Qi2 technology maintains optimal voltage and temperature, preventing stress on your battery and extending its lifespan.

And since there’s no plugging in or out, your device’s charging port stays protected, another small step toward sustainable product longevity.

Efficient, elegant, and sustainable

As pioneers and true experts in wireless charging, Zens is continually pushing the boundaries of what’s possible. As proud members of the Wireless Power Consortium (WPC), we stay at the forefront of innovation, ensuring our chargers always include the latest technologies and meet the highest certification standards. Every Zens product comes with a 3-year warranty, reflecting our confidence in long-lasting quality.

With Qi2, all Zens wireless chargers deliver significantly faster performance, up to 35% charge in just 30 minutes. And we’re already moving toward Qi2.2, which boosts power from 15W to 25W, making wireless charging just as fast as wired, with the added convenience of cable-free living.

But speed isn’t everything. Wireless charging is also about comfort and simplicity woven into real life. Whether you charge overnight, power up while working, or keep your phone topped up throughout the day, Zens makes the experience effortless. That everyday convenience is what truly sets wireless charging and Zens apart.

The final verdict

• The fable: Wireless charging is slower than wired charging.
• The fact: With Qi2 and Qi2.2, wireless charging is fast, efficient, and optimized for your battery’s health.

From Eindhoven to homes and workplaces across Europe, Zens continues to prove that performance and sustainability go hand in hand.

Wireless charging isn’t just convenient anymore. It’s the smart, efficient, and future-ready way to power your life.