Sony LinkBuds Open vs Anker soundcore AeroFit 2 Pro

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LinkBuds Open compared with AeroFit 2 Pro

	SonyLinkBuds Open	Anker soundcoreAeroFit 2 Pro
Overview
Released
Released	October 2024	January 2026
Sound
Type
Type	Open-ear	Open-ear
Noise cancelling
Noise cancelling	No	Yes
Spatial audio with head tracking
Spatial audio with head tracking	Yes	Yes
Driver size
Driver size	11 mm	11.8 mm
Bluetooth codecs
Bluetooth codecs	SBC, AAC and LC3	SBC, AAC and LDAC
Chip
Chip	V2	–
Drivers
Drivers	11 mm ring-shaped driver with a high-compliance diaphragm and high-power neodymium magnet	11.8 mm composite drivers
Chip
Chip	Integrated Processor V2	–
Noise cancelling detail
Noise cancelling detail	No noise cancelling; the open-ring design lets outside sound through; Adaptive Volume Control adjusts the volume to your surroundings; Speak-to-Chat	Adaptive ANC 3.0 operates in the Focus form at ear-hook positions 4 and 5. Open-ear Awareness form uses positions 1 and 2; noise cancellation and fit depend on ear shape.
Audio features
Audio features	DSEE upscaling; 360 Reality Audio with head tracking; LE Audio (LC3); BGM effect; equaliser in the app	HearID custom EQ and app EQ presets; spatial audio with head tracking. LDAC requires a compatible Android source.
Battery
Listening time (maker's claim)
Listening time (maker's claim)	Up to 8 hours	Up to 5 hours
With the case
With the case	Up to 22 hours	Up to 24 hours
Wireless charging
Wireless charging	No	Yes
Battery life detail
Battery life detail	Up to 8 hours with AAC, SBC or LC3; 8 hours from the earbuds plus 14 hours from the case, 22 hours in total; talk time up to 4.5 hours; standby up to 13 hours; the equaliser, DSEE, Speak-to-Chat and Adaptive Volume Control shorten battery life	Maker FAQ at 50% volume: up to 5 hours with ANC and 24 hours including case, or 7 hours in open-ear form and 34 hours including case. With LDAC, about 3 hours with ANC or 6 hours open-ear. Calls at 60% volume: about 4 hours in either form. Main figures use ANC on.
Charging case
Charging case	USB-C; about 2.5 hours to fully charge the case, 1.5 hours for the earbuds; 46.0 × 46.0 × 29.4 mm	USB-C and Qi wireless charging. Each earbud: 60 mAh, about one hour to charge. Case: 750 mAh, about two hours wired or four hours wirelessly; wireless charging maximum 3 W (maker FAQ).
Fast charging
Fast charging	3 minutes of charging gives about 1 hour of playback	Ten minutes charging earbuds provides up to 3.5 hours playback; no fast-charging claim for the case.
Design
Weight (each earbud)
Weight (each earbud)	5.1 g (better)	10.4 g
Water and sweat resistance
Water and sweat resistance	IPX4	IP55
Bluetooth
Bluetooth	5.3	6.1
Two devices at once
Two devices at once	Yes	Yes
Controls
Controls	Wide Area Tap on the earbud or the face in front of the ear (tap twice to play or pause; three times to skip or answer calls; five or more times for volume), reassignable in the app; head gestures to answer calls; voice control; Quick Access; IR sensors pause music when an earbud is taken out	Customisable physical button controls and case pairing/reset button. No wearing detection.
Microphones
Microphones	A microphone on each earbud, with Precise Voice Pickup Technology and AI noise reduction for calls	Four microphones with AI call-noise reduction
Fit and ear tips
Fit and ear tips	Open-ring design held in place by Fitting Supporters; either earbud can be used on its own	Five adjustable ear-hook positions. Maker specifies the ANC form for an ear bowl wider than 16 mm; an ear bowl of 16 mm or less may not support ANC form and should use open-ear form. Each earbud weighs 10.4 g (UK maker).
Case weight
Case weight	About 30.6 g	88.2 g (UK maker)
Water resistance detail
Water resistance detail	IPX4 equivalent for the earbuds, excluding the sound outlet, ventilation holes and microphone holes; the charging case is not water resistant	IP55 applies to earbuds; maker FAQ states the charging case is not water-resistant. Not for swimming or diving.
Works with
Works with	Sony | Sound Connect app for iOS and Android; multipoint connection to two devices; LE Audio with compatible devices; Auto Switch with the LinkBuds Speaker; Google Assistant and Amazon Alexa; Google Fast Pair and Microsoft Swift Pair; Bluetooth 5.3 Class 1, about 10 m range	soundcore app, two-device connection and single-earbud use. Current AI Translation requires app 3.8.7 or later and a network connection. LDAC is not available on iOS.
Colours
Colours	Black, White, Violet (Olivia Rodrigo edition)	Black, Purple, White and Blue on the current UK maker page.
In the box
In the box	Earbuds, charging case, USB-C cable (USB-A to USB-C), documents	–