Beats Solo Buds vs Anker soundcore AeroFit 2

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Solo Buds compared with AeroFit 2

	BeatsSolo Buds	Anker soundcoreAeroFit 2
Overview
Released
Released	June 2024	October 2024
Sound
Type
Type	In-ear	Open-ear
Noise cancelling
Noise cancelling	No	No
Transparency mode
Transparency mode	No	–
Bluetooth codecs
Bluetooth codecs	SBC and AAC	SBC, AAC and LDAC
Drivers
Drivers	Dual-layer drivers, axial-aligned with the acoustic nozzle; laser-cut vents to improve bass and relieve pressure; 8.2 mm (The Guardian)	20 × 11.5 mm racetrack drivers with BassTurbo acoustic structure; rectangular dimensions retained rather than treating one axis as diameter.
Audio features
Audio features	–	App EQ, presets and spatial audio. LDAC requires a compatible source; it does not provide the same codec on iOS.
Battery
Listening time (maker's claim)
Listening time (maker's claim)	Up to 18 hours	Up to 10 hours
With the case
With the case	–	Up to 42 hours
Wireless charging
Wireless charging	No	Yes
Battery life detail
Battery life detail	The case has no battery of its own; it charges the earbuds over USB-C, including from a phone, tablet or laptop; tested by Apple with 256 Kbps AAC tracks at 50% volume	Maker FAQ: about 10 hours music at 50% volume and 42 hours including case; about 8 hours calls at 50% volume. UK introduction says 35 hours with case, but its spec table, exact FAQ and maker launch release agree on 42; 42 retained. Settings, codec and volume affect use.
Charging case
Charging case	USB-C, with no built-in battery; Beats calls it the smallest, lightest case it has made	USB-C and wireless charging; 750 mAh case, about two hours for a full charge. Each earbud 70 mAh, about one hour to charge (maker FAQ).
Fast charging
Fast charging	5 minutes of charging gives up to 1 hour of playback (Fast Fuel)	Ten minutes charging earbuds provides up to four hours playback; fast charging is not claimed for the case.
Design
Weight (each earbud)
Weight (each earbud)	5.7 g (better)	10 g
Water and sweat resistance
Water and sweat resistance	–	IP55
Bluetooth
Bluetooth	5.3	5.4
Two devices at once
Two devices at once	–	Yes
Controls
Controls	Single multifunction button on each earbud	Customisable touch controls; volume control disabled by default, can be enabled in the app. No wearing detection. Case pairing/reset button.
Microphones
Microphones	Microphones with a noise-learning algorithm for calls	Four microphones with AI call-noise reduction
Fit and ear tips
Fit and ear tips	Ergonomically angled nozzles; ear tips in four sizes (XS, S, M, L); earbuds 2.05 × 1.85 × 1.9 cm	Non-sealing open-ear fit with four-level adjustable ear hooks UK maker table states 10 g, identified per earbud by the exact HIFI.DE review; SoundGuys gives 8 g, so maker figure retained.
Case weight
Case weight	22 g	–
Water resistance detail
Water resistance detail	No water resistance rating published	IP55 applies to earbuds; maker FAQ states charging case is not waterproof. Not for swimming or diving.
Works with
Works with	One-touch pairing and automatic pre-pairing across your devices on both iOS and Android, plus Find My (iOS) or Find My Device (Android); Class 1 Bluetooth	soundcore app; two-device connection and single-earbud use. Current AI Translation requires app 3.8.7 or later and latest earbud firmware; this is a later feature, absent from the 2024 review software. UK store also offers a separate AI Assistant style; this entry describes the basic A3874 model.
Colours
Colours	Matt Black, Arctic Purple, Transparent Red, Storm Grey (Beats UK)	Launch Black, White, Minty Green and Abyss Blue; blue shipping planned later in 2024. Current UK labels Midnight, Champagne Mist, Jungle Green and Light Blue.
In the box
In the box	Earbuds, case, ear tips in four sizes (XS, S, M, L), warranty card (no USB-C cable or power adapter)	–