Soundcore AeroFit 2: Review, Pros & Cons

Summary

Open-ear true wireless earbuds with 4-level adjustable hooks, IP55, LDAC and a 10 h/42 h battery, aimed at runners and gym users who want music without blocking ambient sound. Value is strong at $79.99 or below, fair at $99.99, and weak above $129.99.

Strengths

Comfortable for long periods and workouts; secure fit for running and gym.
Strong battery life in daily use, with fast top-up charging.
Adjustable 4-level hooks suit small and large ears.
Plenty of EQ presets and custom EQ in the app.
Translation in 100+ languages useful for travel and calls.

Weaknesses

Lab sound quality is poor: MDAQS score 1.8, with weak low-end.
Touch controls are overly sensitive and easy to trigger by accident.
Bass can vibrate the speaker module against the ear at high volume.
Charging and connection failures reported over time, sometimes needing resets.
Battery degradation after about a year; sweat damage while running despite IP55.
Case is bulky and slippery; no active noise cancellation.

Verified specifications

Model	A3874 (Anker Soundcore AeroFit 2), released 2024.
Form factor	open-ear with ear hook; no active noise cancellation.
Codecs	SBC, AAC, LDAC (up to 990 kbps on compatible Android devices).
Water resistance	IP55 (dust and water jets; not submersible); the original AeroFit was IPX7.
Battery	10 h per charge, 42 h total with case; real-world about 5 h at near-top volume and about 9 h at 60% volume.
Fast charge	10 minutes = 4 h playback.
Charging case	USB-C and Qi wireless charging.
Microphones	4 with AI noise reduction.
Multipoint	yes; disabled when LDAC or translation is active.
Controls	touch, customizable in the app.
Fit	4-level adjustable ear hooks; claimed to fit over 99% of ear shapes.
Translation	real-time in 100+ languages via the Soundcore app 3.8.7+ and latest firmware.
Frequency range	20-40000 Hz.
Modes	3D surround / spatial audio, gaming / low-latency mode.
Earbud dimensions	46 × 47 × 13 mm.
Materials	PC+ABS+LSR shell with liquid silicone ear hooks.
Batteries (teardown)	70 mAh per earbud, 750 mAh in the case.
Case recharge time	about 2 h.
Bluetooth range	up to 10 m.
Included	earbuds, charging case, USB-C cable; no ANC or ear tips.

Full research notes and sources

Sound quality

SoundGuys lab measurement gives an MDAQS score of 1.8 (timbre 2.0, distortion 2.7, immersiveness 2.0) and shows a frequency response severely lacking low-end outside a small midrange band. Trusted Reviews awards a 4-star rating and praises comfort and controls while noting woolly bass and grainy treble; Android Central recommends it at $99.99, especially on sale; MakeUseOf rates it 6/10. EQ presets exist but SoundGuys found Bass Boost, Classical and Acoustic presets measured poorly. Bass can vibrate the speaker module against the ear at high volume with bass-heavy content, and sound leaks in enclosed spaces.

Fit, comfort and controls

Multiple reviewers and owners report all-day comfort and a secure fit for exercise. The 4-level pivot can be knocked out of position, and the case is bulky and slippery, so some owners buy silicone covers. Touch controls are overly sensitive, so adjusting fit while music plays often triggers commands. Wind noise is severe while biking.

Battery life and charging

A 10-minute charge gives 4 h playback. The case recharges in about 2 h.

Durability and owner reports

Other signals include battery degradation after about a year, in some cases under 1 h playback, sweat damage while running despite IP55, finicky touch controls, thin bass, sound leakage, and wind noise while biking. The teardown shows 70 mAh cells in each earbud and a 750 mAh case cell, so battery replacement is not user-serviceable. The manufacturer advertises a 30-day money-back guarantee and a hassle-free warranty but does not state the warranty duration on the checked pages.

Is it worth it?

At $79.99 or below the AeroFit 2 is a good open-ear buy given its feature set; at $99.99 it is still reasonable; above $129.99 it is weak against alternatives such as the Nothing Ear (Open) at $149 or Shokz OpenRun for higher water resistance. The manufacturer lists $129.99 direct, while review and retail sources cite a $99.99 MSRP with frequent $79.99 sales and a Walmart listing at $52.99. Key differentiator is the combination of adjustable fit, IP55, 10 h/42 h battery, wireless charging, multipoint and translation at a mid-range price.

Which model this is

This page covers the Soundcore AeroFit 2 open-ear true wireless earbuds, model A3874, released 2024. Do not confuse with the original AeroFit, AeroFit Pro, AeroFit 2 Pro (model A3875), AeroClip or other Soundcore open-ear models.

The Amazon listing is ASIN B0DCZ2QFV8.