Bose Noise Cancelling Headphones 700 vs Sennheiser MOMENTUM 3 Wireless

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Noise Cancelling Headphones 700 compared with MOMENTUM 3 Wireless

	BoseNoise Cancelling Headphones 700	SennheiserMOMENTUM 3 Wireless
Overview
Released
Released	June 2019	September 2019
Sound
Type
Type	Over-ear	Over-ear
Noise cancelling
Noise cancelling	Yes	Yes
Transparency mode
Transparency mode	Yes	Yes
Driver size
Driver size	–	42 mm
Back
Back	Closed	Closed
Bluetooth codecs
Bluetooth codecs	SBC and AAC	SBC, AAC and aptX
Lossless over USB-C
Lossless over USB-C	–	Yes
Drivers
Drivers	–	Dynamic, closed-back 42 mm transducers; 6 Hz–22 kHz; 118 dB SPL at 1 V and 1 kHz via cable; THD < 0.3% at 1 kHz and 100 dB SPL
Noise cancelling detail
Noise cancelling detail	Adjustable noise cancellation from full cancellation to full transparency; three customisable favourites on the Noise Control button; Conversation mode pauses audio and allows surroundings through; launch reviews describe 11 levels	Four microphones; three selectable cancellation modes and Transparent Hearing
Audio features
Audio features	Active equalisation; bass, mid-range and treble adjustment in the Bose app after updating the headphones; Self Voice adjusts how much of your own voice you hear during calls	aptX Low Latency in addition to the listed codecs; equaliser in the Sennheiser Smart Control app; Tile tracking
Battery
Listening time (maker's claim)
Listening time (maker's claim)	Up to 20 hours	Up to 17 hours
Battery life detail
Battery life detail	Up to 20 hours per charge; USB-C charging; the headphones do not play audio or cancel noise while charging	Built-in 600–700 mAh lithium-polymer battery; 17 hours with Bluetooth and ANC on; approximately three hours to charge over USB-C
Fast charging
Fast charging	15 minutes gives up to 3.5 hours; full charge in up to 2.5 hours (current owner's guide)	–
Design
Weight
Weight	254 g (better)	305 g
Bluetooth
Bluetooth	5.0	5.0
Two devices at once
Two devices at once	Yes	–
Headphone cable
Headphone cable	Yes	Yes
Controls
Controls	Touch surface on the right earcup for playback, volume and calls; separate Power/Bluetooth, Noise Control and Voice Assistant buttons; hold Noise Control for one second for Conversation mode	Three playback and call buttons; dedicated voice assistant button; Auto On/Off when folding; Smart Pause wear detection; NFC pairing
Microphones
Microphones	Eight microphones; six used for active noise cancellation, with two of those shared with two further microphones for four-microphone voice pickup	Two-microphone beamforming array for calls
Fit and ear tips
Fit and ear tips	Around-ear cushions; stainless-steel headband with sliding earcups; earcups rotate flat for the supplied carry case	Circumaural sheepskin leather ear pads, padded headband, stainless-steel sliders and folding hinges
Dimensions
Dimensions	254 g weight reported by What Hi-Fi and SoundGuys; an accessible current maker document does not give the headphone weight	–
Water resistance detail
Water resistance detail	No IP rating verified in the maker documents used; owner's guide says not to use near water	–
Works with
Works with	Bose app (originally Bose Music) for settings and updates; two active Bluetooth devices, one audio stream at a time, with eight stored pairings; SimpleSync with compatible Bose speakers and soundbars; Bluetooth 5.0 and SBC/AAC confirmed by SoundGuys; Google Assistant is not available on iOS according to Bose's current support article; launch Bose AR functionality is not treated as a current feature	Passive analogue audio by cable at 100 ohms, 470 ohms in active mode; digital audio over USB-C from a computer or mobile device
Colours
Colours	Black and Silver at launch	Black, Sandy White
In the box
In the box	Headphones, carry case, USB-C to USB-A cable, 3.5 mm to 2.5 mm audio cable	Headphones, USB-C cable, USB-C to USB-A adaptor, 2.5 mm to 3.5 mm analogue audio cable, carry case, quick guide and safety guide