Anker C40i by Anker

The Anker Soundcore C40i are lightweight open-ear clip-on headphones with a flexible fit and handy physical buttons. Sound quality is thin and call performance is among the worst in its class. They're a decent budget pick for situational awareness during runs, but most people will find better audio and value elsewhere.

Let's be straight about the audio here. The C40i uses what Anker calls 'expansive drivers,' but the sound score lands in the 32nd percentile for this category. That's disappointing territory. In practice, music comes through clear enough for podcasts and background listening, but it's thin and lacks any real punch. Bass is almost nonexistent, which is a common trade-off with open-ear designs, but these fall behind even compared to other clip-on buds. Call quality is the real weak spot, scoring a rough 6.7 out of 100 and sitting in the 15th percentile. Despite Anker's claims of AI-enhanced call clarity, multiple owners report that people on the other end struggle to hear them in anything but a quiet room. The physical buttons are a nice touch for sweaty workouts, but the overall performance feels like a step back from what we'd expect even from a budget Anker product.

Stacked against the competition, the C40i struggles to justify itself. The Samsung Galaxy Buds3 Pro and Sony WF-C700N are in a different league for sound and noise cancellation, though they're in-ear designs and cost more. A closer fight is the Soundcore P31i, another Anker product that delivers better overall audio and call performance for a similar price. The Nothing Ear (3) and EarFun Air Pro 4+ also outclass the C40i in mic quality and sound richness. Where the C40i wins is purely on the open-ear design. If you absolutely need to hear traffic or your surroundings and hate in-ear buds, it's a niche pick. But for music lovers, any of those competitors will make you happier.

Pricing on the C40i is all over the map depending on the vendor, with a spread from $43 up to an absurd $1,317. Obviously, don't pay anything close to the high end. At the $43 to $50 range on Amazon, you're getting what you pay for. These are cheap open-ear buds that do the bare minimum. The problem is that for just a bit more cash, you can grab something like the Soundcore P31i or EarFun Air Pro 4+, which deliver far better sound and actually usable mics. If open-ear is a must-have and your budget is tight, the C40i is an option, but it's not the value king it should be.

If you're hunting for open-ear earbuds that won't break the bank, the Anker Soundcore C40i probably popped up in your search. These are clip-on style headphones, meaning they rest outside your ear canal instead of jamming inside it. The pitch is simple: breathable comfort, a flexible titanium wire frame, and physical button controls for around $43 to $50 depending on where you look. For runners or anyone who hates that plugged-up feeling of traditional earbuds, the concept is genuinely appealing. But after digging into the specs and what over a thousand buyers are saying, the execution is a real mixed bag. The C40i nails the lightweight, stay-put fit for some, but stumbles hard on sound quality and call performance. It's a budget-friendly way to dip your toes into open-ear audio, just don't expect it to replace your daily drivers for music.

Skip the C40i if sound quality or taking calls is a priority. The audio is thin and the mic is one of the weakest we've tracked. If you have smaller ears, the fit will likely be frustrating since the speaker housing doesn't adjust enough to sit properly. Anyone who wants deep bass or immersive music should look at the Soundcore P31i or EarFun Air Pro 4+ instead. And if you're just curious about open-ear buds, know that this budget option comes with budget compromises that might turn you off the category entirely.

Should you buy the Anker Soundcore C40i? Only if open-ear is a non-negotiable feature and you're on a strict budget. The design is clever, the build is flexible, and the physical buttons are genuinely useful for active folks. But the sound is mediocre at best, and the call quality is a real letdown. If you're just looking for cheap workout buds, there are better-sounding options that still let in some ambient noise. The C40i fills a specific niche, but for most people, it's a pass.