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Bose QuietComfort 45 vs Sony INZONE H9

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

Better figure, where one is clearly better

BoseQuietComfort 45SonyINZONE H9
Overview
ReleasedSeptember 2021July 2022
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Driver size–40 mm
Back–Closed
Bluetooth codecsSBC and AACSBC and AAC
Drivers–Closed dynamic headphones with 40 mm neodymium drivers; 5 Hz–20,000 Hz frequency response (JEITA)
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 voicesNoise cancelling and Ambient Sound Mode; NC/AMB button cycles the modes
Audio featuresTriPort acoustic architecture; Active EQ; adjustable EQ (bass, mid-range and treble) in the Bose Music app360 Spatial Sound for Gaming and equaliser through INZONE Hub for Windows; compatible with PS5 Tempest 3D AudioTech
Battery
Listening time (maker's claim)Up to 22 hoursUp to 20 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 timeGame and chat with Bluetooth off, up to 20 hours with noise cancelling or ambient mode on, or 32 hours off. Simultaneous Bluetooth calls reduce these to 15 or 20 hours respectively; AAC music with gaming gives 16 or 22 hours. Claims from Sony's original help guide; usage conditions affect runtime.
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)About 3.5 hours for a full charge; 10 minutes charging gives about one hour of use; can continue wireless gaming while charging
Design
Weight240 g330 g
Bluetooth5.15.0
Two devices at onceYesNo
Headphone cableYesNo
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 callsVolume dial, game/chat balance, power, Bluetooth and noise-cancelling/ambient buttons; boom microphone mutes when raised
MicrophonesFour external microphones for voice pickup in a beamforming array with a noise-rejection algorithm; What Hi-Fi counts six microphones in totalFixed flip-up electret condenser boom microphone; current maker help guide specifies bidirectional pickup and 100 Hz–8,000 Hz, while launch marketing describes a directional boom
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 caseCircumaural closed headphones with padded headband and synthetic-leather ear pads; approximately 330 g white or 335 g black, according to current Sony UK specifications
Case weight0.18 kg (carry case)–
Water resistance detailNo water resistance rating publishedNot waterproof; no IP rating is 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 TapSupplied USB-A 2.4 GHz transceiver for PC and PS5, with PC/PS5 switch; simultaneous Bluetooth phone audio. Bluetooth does not support two-device multipoint (SoundGuys). USB-C cable charges rather than providing wired USB audio. Bluetooth 5.0 Class 1, approximately 10 m line-of-sight range; A2DP, AVRCP, HFP and HSP.
ColoursTriple Black and White Smoke at launchWhite; black introduced in October 2023, according to Sony's INZONE Buds/H5 announcement
In the boxHeadphones, carry case, 30.5 cm USB-C charging cable, 3.5 mm to 2.5 mm audio cableHeadset, USB transceiver and approximately 1.5 m USB-A to USB-C cable; reference guide and warranty card

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