The Xiaomi UltraThin Magnetic Power Bank 5000 15W delivers a highly portable charging option with a 5,000mAh battery, magnetic attachment and a body only 6mm thick. Its compact design is appealing, but the power bank’s limited wireless compatibility means the advertised 15W speed applies only to Xiaomi 17 series phones.

Recently launched in India, the accessory costs INR 5,999. That makes it more expensive than Xiaomi’s 10,000mAh 45W model at INR 3,999 and its 20,000mAh 165W model at INR 5,499. The premium is therefore almost entirely for its thin, lightweight design.

Compact design with a small usable capacity

Measuring 98.5mm by 71.5mm, the power bank is roughly the size of a playing card. Its 6mm thickness and 98g weight make it thinner and lighter than Apple’s iPhone Air MagSafe Battery, according to the review’s comparison. The aluminum exterior comes in Radiant Orange, Glacier Silver and Graphite Black, while the underside uses soft-touch plastic around the wireless charging coil and magnets.

A USB-C port handles both charging the power bank and charging other devices. Four LEDs show its status, while a button activates the indicators and can enable low-current charging for accessories such as Bluetooth headsets. Xiaomi rates the battery at 5,000mAh at 3.79V, but its rated capacity at typical 5V use is 3,000mAh.

Wireless charging is heavily restricted

The main drawback is the accessory’s wireless charging standard support. The Xiaomi 5000 15W is neither MagSafe nor Qi certified. It can deliver up to 15W wirelessly only to Xiaomi 17 series phones, while other devices are limited to 7.5W or less. By comparison, Xiaomi’s cheaper 10,000mAh model supports Qi 2.2 at up to 25W.

USB-C charging reaches 22.5W. Wired and wireless charging can also run at the same time, although the output is limited to 7.5W over USB-C and 5W wirelessly in that configuration.

Real-world charging performance

Testing with an iPhone 15 Pro produced acceptable, though slow, results. The phone reached 27% after 30 minutes, 46% after one hour and 75% after two hours, before the power bank ran out at about two and a half hours with the phone at 91%.

Performance with the Pixel 11 Pro was significantly worse. Wireless charging never exceeded 5W, taking the phone from 1% to 11% in 30 minutes, 21% after an hour and 39% after two hours. After three hours, the power bank was empty and the phone had reached only 55%.

Wired charging was considerably better. The Pixel reached 23% in 15 minutes and 41% in 30 minutes, with the battery pack depleted after 51 minutes and the phone at 61%.

Verdict

The Xiaomi UltraThin Magnetic Power Bank 5000 15W is easy to carry, attaches securely to compatible phones and looks more refined than many larger battery packs. Its wired charging is useful, and Xiaomi 17 owners should see the best wireless results.

For iPhone users, wireless charging is merely adequate, while most Android owners face very slow speeds. Unless maximum portability is the priority, the higher price and small usable capacity make Xiaomi’s larger alternatives more practical.