4 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
Costly or dangerous
Redmi Buds 6 Pro disconnect spontaneously from the phone after under two months (owner, EU retail)
An owner review on the Alza (EU) retail site reports the earbuds begin disconnecting from the phone on their own within two months, and notes a second reviewer reported the same.
What to check. A buyer should expect spontaneous Bluetooth disconnections to appear within the first couple of months; this is a recurring owner-reported failure, not a one-off. Verify the retailer's return/warranty window before buying.
Redmi Buds 6 Pro pair only one-sided (left or right), never both together (owner, German forum)
An owner on a German tech forum reports the buds pair only one-sided (sometimes left, sometimes right) even on brand-new units, and the same happens on two other phones; another user notes it can occur with new goods.
What to check. This is a hardware-level pairing defect where only one earbud connects, and it is not fixed by re-pairing or trying other phones. A buyer should test both buds immediately on arrival and exchange the unit if one side will not pair.
Xiaomi official FAQ acknowledges Redmi Buds 6 Pro sound in only one earbud after Bluetooth pairing
Xiaomi's own Turkish FAQ confirms that sound in only one earbud after Bluetooth pairing is a known condition, listing weak contact, low battery, blocked speaker, water/sweat short-circuit, and left-right Bluetooth disconnection as causes.
What to check. One-side sound loss is a recognized issue acknowledged by Xiaomi itself. The official remedies (re-seat in case, clean contacts, re-pair) can help, but if the single-side audio persists the FAQ directs the user to an after-sales service center for inspection.
Xiaomi official FAQ: Redmi Buds 6 Pro battery life drops below 4 hours when high-power features are on
Xiaomi's official UK FAQ states that listening time under 4 hours occurs when ANC, adaptive listening, dimensional audio and LDAC are all active simultaneously, and recommends disabling unused features to extend battery life.
What to check. Short battery life is feature-driven rather than a defect: running ANC plus LDAC together can cut playback below 4 hours. A buyer who wants long runtime should disable high-power features in the Xiaomi Earbuds app.
These reports come from the pages linked under each item: owner forums, repair guides and workshops. They are not a diagnosis of any one unit, and a careful check of the one you are buying still applies.
Text from the Kriko Wireless earbuds catalog, version 0.1.4, under the CC-BY-SA-4.0 license.
