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New Soundcore Liberty 4 earbuds can monitor your heart rate

An in-ear heart rate sensor is the earbud feature we didn’t know we needed.

soundcore liberty 4
Image: KnowTechie

Anker announced the Soundcore Liberty 4 earbuds this week. They cost $149.99, feature spatial audio, and other premium features.

The stick design might not be to everyone’s tastes, but the tech inside seems promising. Soundcore put dual dynamic drivers into the Liberty 4, which they say offers “clarity across all frequencies.”

For the relatively cheap price, you get a lot of features. One of the big ones is spatial audio, which keeps sounds pinned in 3D space while you move your head around.

Bluetooth 5.3, Anker’s own HearID active noise cancellation (ANC), multipoint connectivity, and six microphones (three in each bud) are also featured in these new buds.

Meet the Soundcore Liberty 4

You also get one feature we’ve rarely seen — in-ear heart rate monitoring, thanks to a tiny sensor on the side of the ear tip.

That sensor feeds into a Wellness app to track daily trends, workout data, or anything else. These sound perfect if you’re a fan of earbuds in the gym.

READ MORE: Review: The Anker Soundcore Sleep A10

Anker says that the Liberty 4 has some impressive battery stats. They claim nine hours with normal use, seven hours with ANC on, and six hours in LDAC mode without ANC.

You can also fast charge them from the charging case, getting three hours of playback from 15 minutes of charging. The case has wireless charging or the usual USB-C connector. The case has roughly two full charges in it.

The release schedule is a little convoluted if you’re interested in Anker’s Soundcore Liberty 4.

Only the black colorway is available right now, for $149.99, from Soundcore.com. Amazon will start selling the black Liberty 4 on Oct 10, and Best Buy will have it by the end of October.

The Soundcore website has preorders for the white colorway, with a promise to ship all orders before October 20. Amazon will sell the white version on Oct 17.

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Maker, meme-r, and unabashed geek with nearly half a decade of blogging experience at KnowTechie, SlashGear and XDA Developers. If it runs on electricity (or even if it doesn't), Joe probably has one around his office somewhere, with particular focus in gadgetry and handheld gaming. Shoot him an email at joe@knowtechie.com.

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