Bose QuietComfort Ultra Earbuds vs Sony WF-C700N

Every spec side by side, from each maker's published figures.

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QuietComfort Ultra Earbuds compared with WF-C700N
BoseQuietComfort Ultra EarbudsSonyWF-C700N
Overview
ReleasedOctober 2023April 2023
Sound
TypeIn-earIn-ear
Noise cancellingYesYes
Transparency modeYesYes
Driver size–5 mm
Spatial audio with head trackingYes–
Bluetooth codecsSBC, AAC and aptX AdaptiveSBC and AAC
Drivers–Closed 5 mm drivers; the maker does not identify the magnet material
Noise cancelling detailQuiet Mode (full noise cancelling), Aware Mode and Immersion Mode, plus custom modes with noise cancelling levels in between; CustomTune tailors sound and noise cancelling to your earsActive noise cancelling, adjustable Ambient Sound Mode and Focus on Voice; Adaptive Sound Control changes ambient settings according to activity and familiar locations
Audio featuresBose Immersive Audio (Still keeps the sound in place as you turn your head; Motion lets it follow); three-band EQ in the Bose app; aptX Adaptive with Snapdragon Sound devices, normally at 44.1 kHz and up to 48 kHz for high-resolution listening, with a low-latency modeDSEE processing, app equaliser and personalised 360 Reality Audio with compatible services; Bluetooth transmission range 20 Hz–20 kHz at 44.1 kHz sampling, not a measured acoustic frequency response
Battery
Listening time (maker's claim)Up to 6 hoursUp to 7.5 hours
With the caseUp to 24 hoursUp to 15 hours
Wireless chargingNoNo
Battery life detailUp to 6 hours per charge with Immersive Audio off, 4 hours with it on; the case holds three full charges; tested by Bose at 75 dB SPL in Quiet ModeMaker claims up to 7.5 hours with ANC and 15 hours including the case, or ten and 20 hours with ANC off. The manual specifies AAC at 7.5 hours with ANC or ambient mode and ten hours with both off; SBC is seven and nine hours respectively. Equaliser and DSEE shorten runtime. Talk time up to five hours. SoundGuys measured seven hours 13 minutes with ANC.
Charging caseUSB-C; earbuds charge in up to 2 hours, the case in up to 3 hours; an optional silicone case cover (sold separately) adds wireless chargingUSB-C charging; maker manual gives approximately 1.5 hours for the earbuds and three hours for the case. SoundGuys confirms that wireless charging is absent.
Fast charging20 minutes in the case gives up to 2 hours of playbackTen minutes charging provides approximately one hour playback
Design
Weight (each earbud)7.7 g4.6 g (better)
Water and sweat resistanceIPX4IPX4
Bluetooth5.35.2
Two devices at onceYesYes
ControlsTouch surface on each earbud (tap to play, pause or answer calls; double-tap to skip forward or end calls; triple-tap to skip back; swipe up or down for volume; touch and hold for a shortcut to switch modes or the voice assistant)Physical buttons for playback, tracks, calls, voice assistant and noise modes. Updated firmware adds volume adjustment by pressing the right button four times or more to increase volume, or the left to decrease it. TechRadar's launch review predates this addition.
MicrophonesAdaptive microphone system with adjustable self-voice; TechRadar counts four microphones per earbud–
Fit and ear tipsSilicone eartips in small, medium and large (medium fitted); stability bands in sizes 1, 2 and 3 (size 1 fitted), with a notch that aligns them on the earbud; extra-small and extra-large sizes available from Bose Support; either earbud can be used on its own–
Case weight0.132 lb (about 60 g)Approximately 31 g; 4.6 g per earbud includes medium tips
Water resistance detailIPX4 for the earbuds; the inside of the case resists water left on the earbuds, but Bose advises keeping the outside of the case dryIPX4 applies to the earbuds excluding the sound outlets; the charging case is not water resistant
Works withBose app (launched with Bose Music) for iOS and Android; multipoint connection to two devices since a July 2024 update; Google Fast Pair; SimpleSync with Bose smart soundbars and speakersBluetooth A2DP, AVRCP, HFP and HSP. Two-device multipoint requires updated firmware; the launch announcement scheduled it for summer 2023 and the current maker manual documents it. The European maker announcement gives April 2023 availability without a first-sale day; Sony’s US release gives 5 April and Japan’s gives 21 April. TechRadar’s 1 April claim is not substituted for maker retail dates.
ColoursBlack and White Smoke at launch; Bose UK now sells Lunar BlueBlack, White, Lavender and Sage Green
In the boxEarbuds, charging case, eartips (small and large; medium fitted), stability bands (sizes 2 and 3; size 1 fitted), USB-C to USB-A cable–

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