The Xiaomi Redmi Buds 5A use an in-ear fit and are designed as true wireless earbuds, meaning they operate without any cables or neckband and do not include wingtips. Each earbud weighs just 7.2 grams, keeping the overall form factor light and compact. They feature stereo speakers and carry an IPX4 rating, which indicates resistance to sweat and light moisture exposure.
The Xiaomi Redmi Buds 5A support both active noise cancellation and passive noise reduction, giving them two layers of sound isolation during playback. Audio is handled by a 12 mm driver unit that covers a frequency range spanning from 20 Hz up to 24,000 Hz. The earbuds do not use a neodymium magnet in their driver configuration.
Each earbud holds a 34 mAh rechargeable battery rated for 5 hours of continuous playback, which drops to 3.5 hours when active noise cancellation is enabled. The charging case carries a 440 mAh cell that extends the total available listening time to 25 hours. A full charge takes approximately 0.7 hours, and a battery level indicator is included to help monitor remaining power. Wireless charging is not supported, so the case relies solely on wired charging.
The Xiaomi Redmi Buds 5A connect wirelessly via Bluetooth 5.4, covering a maximum range of 10 meters and delivering an audio latency of 60 ms. Fast pairing is supported for quicker initial setup, while NFC pairing is not available. The earbuds do not support any aptX variants — including aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, or aptX Voice — nor do they support LDAC, LDHC, or the AAC codec. USB Type-C is used for wired charging, and the earbuds can be used wirelessly without any cable connection during playback.
The Redmi Buds 5A include an ambient sound mode that allows environmental audio to pass through, along with a mute function and voice prompts for hands-free feedback during use. They can function as a headset for calls and are controlled via a panel placed on the device itself, though there is no in-line control panel on a cable. A find device feature is on board to help locate misplaced earbuds, and fast charging is supported for quicker top-ups. The earbuds do not have in/on-ear detection or a body temperature sensor, but a travel bag is included in the box for portability.
The Xiaomi Redmi Buds 5A are equipped with a noise-canceling microphone, which works to reduce unwanted background sound during calls and voice input.