On sale 27%

Anker AeroFit A3874

The 20mm racetrack drivers with BassTurbo acoustics and LDAC support deliver vibrant bass and Hi-Res audio in an open-ear design that maintains environmental awareness. Its 4-level adjustable ear hooks and soft materials provide a pressure-free, all-day fit for over 99% of ear shapes, while the 35-hour total battery life with Qi charging adds convenience. These earbuds are best for fitness enthusiasts who want stable, sweat-resistant audio with IP55 protection during workouts.

form factor open-ear
driver type dynamic
bluetooth version 5.4
battery life hours 8.5
case battery hours 35
water resistance IP55
Anker AeroFit A3874 earbuds
52 Overall Score
Also available in:

Snapshot

The 30-Second Version

The Anker AeroFit A3874 delivers best-in-class sound for open-ear buds, with a crazy-comfortable fit and solid battery life. Call quality is a major letdown, and the price varies so wildly you have to hunt for a deal. Worth it for fitness and awareness, but skip them if you need to take calls.

Pros & Cons

Pros

  • Incredible sound for an open-ear design, with deep bass and LDAC support. 94th
  • Super comfortable, pressure-free fit that works for all-day wear. 92nd
  • Solid battery life with wireless charging for the case. 77th
  • IP55 rating means they can handle sweat and rain without issue. 74th

Cons

  • Call quality is rough, scoring a dismal 33.1 out of 100.
  • No real noise canceling to speak of, so forget using them in loud places.
  • Social proof is almost nonexistent, so you're buying on specs alone.
  • The price is all over the map, from $89 to a frankly absurd $2199.

The proof

Performance

Sound quality is the star here, landing in the 94th percentile for this category. Those oversized 20mm racetrack drivers push out vibrant, deep bass that you genuinely feel, and LDAC support keeps the high-res audio stream stable over Bluetooth 5.4. It's a standout for open-ear buds. Battery life is solid at 8.5 hours in the buds and 35 total with the Qi-compatible case, putting it well above average. But the open design means ANC is basically nonexistent, scoring in the 32nd percentile, and call quality is a real weak spot at 33.1 out of 100. If you take a lot of calls, these will let you down.

Performance Percentiles

Anc 31.8
Mic 44
Build 91.9
Sound 94.2
Battery 76.5
Comfort 73.8
Connectivity 54
Social Proof 9.9

Specifications

Full Specifications

Design

Form Factor open-ear
Wearing Style ear-hook
Weight 0.1 kg / 0.2 lbs

Audio

Driver Type dynamic
Driver Size 20
Hi-Res Audio Yes
Codecs LDAC

Noise Control

ANC No
Transparency No

Connectivity

Bluetooth 5.4

Earbud Battery

Battery Life 8.5
Charging USB-C

Case Battery

Case Battery 35
Case Charging USB-C
Wireless Charging Yes

Microphone

Microphone Yes

Features

Voice Assistant Anka
Touch Controls Yes
App soundcore
Water Resistance IP55

vs Competition

Stacked against the heavy hitters like the Sony WF-1000XM6 or Bose QuietComfort Ultra, the AeroFit isn't even playing the same game. Those are noise-canceling in-ear champs built for isolation and call clarity. The AeroFit is for people who actively don't want that. It's more of a rival to bone conduction or other open-ear fitness buds. The Technics EAH-AZ100 and Samsung Galaxy Buds3 Pro will crush it on calls and ANC, but the Anker's sound profile and all-day comfort carve out a unique niche they can't touch.

Spec Anker AeroFit A3874 Technics EAH-AZ100 EAH-AZ100-K Sony WF-1000XM6 Samsung Galaxy Buds3 Pro Bose QuietComfort Ultra 896637-0010 Apple AirPods Pro 3
Form Factor open-ear in-ear in-ear in-ear in-ear in-ear
Driver Type dynamic dynamic dynamic dynamic dynamic dynamic
Wireless - true true true true true
Active Noise Cancellation false true true true true true
Bluetooth Version 5.4 5.3 5.3 5.4 5.3 5.3
Battery Life Hours 8.5 8 8 6 6 8
Case Battery Hours 35 28 24 26 18 24
Water Resistance IP55 IPX4 IPX4 IP57 IPX4 IP57
Multipoint - true true true true true
Compare Compare Compare Compare Compare
Product AncMicBuildSoundBatteryComfortConnectivitySocial Proof
Anker AeroFit A3874 31.84491.994.276.573.8549.9
Technics EAH-AZ100 EAH-AZ100-K Compare 97.497.581.499.18273.899.281.4
Sony WF-1000XM6 Compare 97.499.881.489.279.273.899.281.4
Samsung Galaxy Buds3 Pro Compare 97.497.598.993.576.994.799.790.3
Bose QuietComfort Ultra 896637-0010 Compare 97.491.981.49748.794.798.190.3
Apple AirPods Pro 3 Compare 97.483.998.991.579.294.799.799.4

Price

Value & Pricing

Value is a weird conversation with these. The price spread is a wild $2,110 across vendors, which tells you to shop very carefully. At the low end around $89, these are a steal for the sound quality and fit you get. At the high end, you're getting fleeced. For what they are, open-ear buds with great audio and terrible calls, they make a ton of sense if you find them at a reasonable price. Just don't pay anywhere near the top of that range.

From $95 2 offers across 1 retailer
Amazon 2 offers From $95

Price History

$90 $100 $110 $120 $130 $140 May 12Jul 18Oct 9 $95

Read more

Overview

The Anker AeroFit A3874 takes a different path than most earbuds. Instead of jamming a silicone tip into your ear canal, these use an open-ear, ear-hook design that leaves your ears completely open. The pitch is simple: all-day comfort and staying aware of your surroundings while still getting surprisingly good sound from those big 20mm drivers. And honestly, for the right person, it works really well. Just don't expect them to replace your noise-canceling buds on a plane.

Common Questions

Q: Can I use these for phone calls in a quiet office?

Even in a quiet room, the mic quality is the weakest point of these earbuds, scoring just 33.1 out of 100. Your voice will likely sound thin and distant to the person on the other end.

Q: Do these block out any noise at all?

Almost none. The open-ear design is built to let sound in on purpose, so active noise canceling is practically nonexistent and sits in the 32nd percentile. You'll hear traffic, conversations, and everything else around you clearly.

Q: Will these stay put during a hard run?

Yes, the adjustable ear hooks and lightweight 86g build are designed for a secure, pressure-free fit that works for over 99% of ear shapes. The IP55 water resistance also means sweat and light rain won't be an issue.

Who Should Skip This

If you take frequent calls or work in a noisy environment, look elsewhere. The mic performance is a dealbreaker, and the lack of noise canceling means you'll be cranking the volume just to hear your music over background chatter. Get a pair of Sony or Bose buds instead.

Verdict

Grab these if you want a pair of workout or office buds that let you hear everything around you while still pumping out genuinely impressive, bassy sound. They're perfect for runners, cyclists, or anyone who hates the plugged-up feeling of in-ears. Just know that taking a phone call on them will be a frustrating experience for everyone involved.

Usage Scores

Calls (33)Music (55.9)Overall (51.9)Budget (54.9)Gaming (46.9)Travel (46.6)Commute (43.9)Fitness (68.4)

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