Bose QuietComfort 45 vs Anker soundcore Space Q45

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

Better figure, where one is clearly better

QuietComfort 45 compared with Space Q45
BoseQuietComfort 45Anker soundcoreSpace Q45
Overview
ReleasedSeptember 2021August 2022
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Driver size–40 mm
Back–Closed
Bluetooth codecsSBC and AACSBC, AAC and LDAC
Drivers–40 mm double-layer diaphragm using silk and ceramic materials
Noise cancelling detailTwo modes, Quiet (full noise cancelling) and Aware (full transparency); microphones inside and outside the ear cups with a proprietary digital chip, tuned for mid-range frequencies such as voicesAdaptive noise cancelling and five custom noise-cancelling levels in the maker FAQ; adjustable transparency
Audio featuresTriPort acoustic architecture; Active EQ; adjustable EQ (bass, mid-range and treble) in the Bose Music appLDAC on compatible Android devices, soundcore app equaliser and presets; maker FAQ excludes simultaneous LDAC and multipoint
Battery
Listening time (maker's claim)Up to 22 hoursUp to 50 hours
Battery life detailUp to 22 hours on Bose's current product page, tested with noise cancelling on at 50% volume in continuous playback; Bose quoted up to 24 hours at launch (2021 press release); wired listening with the audio cable extends play timeUp to 50 hours with ANC or 65 hours without it, tested by the maker at 60% volume. SoundGuys lists the release date as 25 August 2022
Charging case–USB-C charging takes around two hours; headphones cannot be used while charging
Fast charging15 minutes gives up to 3 hours; full charge in up to 2.5 hours (Bose UK; the launch press release said two hours)Maker specification table and FAQ give four hours of listening from five minutes of charging; its introductory paragraph instead says five hours
Design
Weight240 g (better)292 g
Bluetooth5.15.3
Two devices at onceYesYes
Headphone cableYesYes
ControlsPhysical buttons; on the right ear cup, power, volume up, volume down and a multi-function button (play, pause, calls, voice assistant); on the left ear cup, an Action button to switch modes and mute the microphone on callsPhysical playback, volume, power and NC buttons; no wearing detection or touch gestures (SoundGuys and Tom's Guide)
MicrophonesFour external microphones for voice pickup in a beamforming array with a noise-rejection algorithm; What Hi-Fi counts six microphones in totalTwo microphones with AI call-noise reduction
Fit and ear tipsAround-ear with plush synthetic leather ear cushions and headband; impact-resistant nylon with cast-metal hinges; folds flat for the carry caseFolding aluminium-alloy hinges and cushioned ear cups; maker weight is 292 g, while SoundGuys' review table lists 281 g
Case weight0.18 kg (carry case)–
Water resistance detailNo water resistance rating published–
Works withBose Music app for iOS and Android; multipoint connection to two devices; remembers up to seven paired devices; SimpleSync with Bose smart soundbars and speakers; Spotify TapBluetooth connection to two devices; AUX input is 3.5 mm (SoundGuys and Tom's Guide)
ColoursTriple Black and White Smoke at launchBlack, Blue and White; only Black was available at launch, according to Tom's Guide
In the boxHeadphones, carry case, 30.5 cm USB-C charging cable, 3.5 mm to 2.5 mm audio cableHeadphones, carrying case, USB-C charging cable, AUX cable and user guide (Tom's Guide)

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