【What Is Qi Wireless Charging?】 Understand the Qi2 Upgrade & Key Differences – With Top Product Picks

As smartphones continue to evolve, wireless charging has become a standard feature of everyday use. Simply placing your phone on a charging pad starts charging automatically — a seemingly simple action powered by the Qi wireless charging standard.

Qi was introduced in 2008 by the Wireless Power Consortium (WPC). It works by using electromagnetic induction to transfer power from the charging pad to your device, typically within a distance of 4 cm. Today, this technology is widely supported by leading brands such as Apple, Samsung, Google, and Xiaomi. It is used across smartphones, wireless earbuds, and wearable devices.

But what is Qi wireless charging exactly? It’s worth noting that the underlying principle of Wireless Power Transfer (WPT) was first proposed by Professor Ron Hui, Chair Professor of Electrical and Electronic Engineering at The University of Hong Kong. He is a global pioneer in this field. His groundbreaking research laid the foundation for Qi technology and has played a key role in shaping the development of wireless charging standards — including the newer Qi2.

So, what’s the difference between Qi and Qi2? And how does MagSafe fit in? Are they compatible with all phones? Do they affect charging speed or safety?
In this article, we’ll break down how Qi technology works, highlight Qi2’s improvements, and help you choose the best wireless charging product for your needs.

Looking for a reliable and efficient Qi-certified charger? Check out the MagSafer 2.0 Wireless Power Bank (5,000mAh) — it supports both Qi wireless input and output, providing true two-way wireless charging for a seamless power boost to your devices.

What Is Qi Wireless Charging? A Complete Guide to Its Technology and Applications

Wireless charging has become an essential feature for modern smartphones, and among all the available technologies, Qi wireless charging is by far the most widely adopted standard.
Qi is a global standard developed by the Wireless Power Consortium (WPC) and has been adopted by hundreds of brands worldwide since its launch in 2008.

How Qi Wireless Charging Works

Qi technology operates based on the principle of inductive charging. When a Qi-compatible device, such as a smartphone, is placed on or near a Qi-enabled charging pad, the coils inside both devices generate a magnetic field that produces current — powering the device wirelessly. This method eliminates the need for physical connectors, reducing wear and tear from plugging in and minimizing the risk of loose or unstable charging ports.

Qi Charging Power & Supported Devices

Qi wireless charging currently supports power outputs ranging from 5W to 15W, depending on the device's and charger's capabilities.

• 5W is the basic charging level suitable for slow, overnight charging.

• For faster charging, many newer smartphones support 10W or 15W, which can significantly reduce charging time and improve efficiency.

Qi also works within a maximum charging distance of around 4 cm, and when properly aligned, it provides a stable and efficient power transfer with minimal energy loss.

Thanks to its wide compatibility and ease of use, Qi wireless charging has become one of the most reliable and common solutions for powering smartphones and wearable devices.

Which Smartphone Brands Support Qi Wireless Charging?

Today, most flagship and mid-range smartphones support Qi wireless charging, including but not limited to:

• Apple iPhones – From iPhone 8 up to the latest iPhone 16 series

• Samsung Galaxy – Fully supports Qi since the Galaxy S6

• Google Pixel – Supported from Pixel 3 onwards

• Xiaomi – Selected models from Mi 9 / Xiaomi 10 and newer

These major brands not only support Qi, but also continue to improve fast-charging speeds, thermal management, and coil alignment to enhance charging performance.

What Is Qi2 Wireless Charging? How Does It Differ from Qi?

Now that you understand what Qi wireless charging is, you may be wondering: What is Qi2 wireless charging? How is it different from Qi?
Let’s break down the background, improvements, and key differences between Qi and Qi2 wireless charging standards.

Qi2 is the Next Generation of Qi Wireless Charging

Qi2 wireless charging was officially released by the Wireless Power Consortium (WPC) in 2023. To address common issues with Qi1 — such as poor alignment and inconsistent charging speeds — Qi2 introduces a magnetic alignment system, inspired by Apple’s MagSafe technology. This allows the charger and device to snap into a perfect position, resulting in faster, more stable, and safer charging.

Qi2 is expected to become the new cross-platform standard for both iPhone and Android devices. It will also play a key role in improving the compatibility, safety, and efficiency of next-generation wireless charging accessories.

Qi vs Qi2 Wireless Charging Comparison Table:

What Is MagSafe? How Is It Different from Qi Wireless Charging?

MagSafe is Apple’s proprietary wireless charging technology, first introduced with the iPhone 12 series. While it is built upon the Qi wireless charging standard, MagSafe adds a ring of built-in magnets to the iPhone and compatible accessories, ensuring precise alignment between the phone and the charger. This improves charging speed and overall stability.

The MagSafe system not only enhances the user experience but also supports a range of innovative magnetic accessories, including wallets, stands, and car mounts—making it a key part of the Apple ecosystem.
With the launch of Qi2, magnetic alignment is now being adopted as a standard feature, bringing MagSafe-like functionality to more brands and devices and enabling cross-platform magnetic wireless charging experiences.

Recommended Wireless Charging Accessories

A smooth wireless charging experience depends not only on your device’s compatibility but also on choosing the right accessories.
Here are a few high-quality wireless charging products from THINKTHING STUDIO, thoughtfully designed to offer both style and performance—making everyday charging safer, faster, and easier.

MagSafer 3.0 Wireless Car Charger

The MagSafer 3.0 is a wireless charger specifically designed for in-car use. It supports the Qi wireless charging standard and features a magnetic alignment system to securely attach your iPhone or any other MagSafe-compatible device. This ensures your phone stays firmly in place during drives, preventing slips or disconnections.

Currently, MagSafer 3.0 supports up to 18W of wireless fast charging, which is more than enough for high-power tasks like navigation, calls, and music streaming on the go.

At THINKTHING STUDIO, we are also actively developing the MagSafer 3.0 Qi2 version, which will support the new Qi2 magnetic alignment and fast-charging standard. Stay tuned for its release!