Bowers & Wilkins Px7 S3 vs Focal Bathys MG

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

Better figure, where one is clearly better

Px7 S3 compared with Bathys MG
Bowers & WilkinsPx7 S3FocalBathys MG
Overview
ReleasedApril 2025April 2025
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Driver size40 mm40 mm
Bluetooth codecsSBC, AAC, aptX, aptX Adaptive and aptX LosslessSBC, AAC, aptX and aptX Adaptive
Lossless over USB-CYesYes
Drivers40 mm dynamic full-range biocellulose drive units, angled towards the ears; dedicated discrete headphone amplifier; Bowers & Wilkins DSP with 24-bit/96 kHz processingMagnesium drivers with 'M'-shaped domes, made in France; 10 Hz to 22 kHz (±3 dB); harmonic distortion < 0.2% at 1 kHz
Noise cancelling detailEight microphones (two measure each drive unit's output, four monitor outside noise, two for voice); noise cancelling On, Pass-Through or Off from the Quick Action button or the Music appTwo noise-reduction modes (Silent, the strongest, and Soft, which cuts low-frequency noise) plus a Transparency mode, chosen with a button on the left ear cup or in the app
Audio featuresaptX Adaptive 24/96 and aptX Lossless (Snapdragon Sound); also aptX HD; 5-band EQ with presets, or True Sound mode; USB-C audio interface; spatial audio and LE Audio with LC3 and Auracast promised as later updatesUSB-DAC mode up to 24-bit/192 kHz over USB-C; EQ with presets and custom settings plus a Mimi hearing test in the Focal & Naim app
Battery
Listening time (maker's claim)Up to 30 hoursUp to 30 hours
Battery life detailRechargeable lithium-ion battery; 30 hours of wireless streaming with noise cancelling on at average volume; full charge takes up to 2 hours1,060 mAh lithium-ion battery; 30 hours over Bluetooth with noise cancelling, 35 hours in jack mode, 42 hours in USB-DAC mode; full charge in about 1.5 hours with a 2 A adaptor
Fast charging15 minutes for up to 7 hours15 minutes for about 5 hours (with a 2 A adaptor)
Design
Weight300 g (better)350 g
Bluetooth5.35.2
Two devices at onceYesYes
Headphone cableYesYes
ControlsVolume up, volume down and multi-function buttons on the right ear cup; power switch and Quick Action button (noise cancelling modes or voice assistant) on the left; wear sensors in both ear cups pause and resume playbackPower/DAC slide switch; multifunction button, + and – buttons; ANC/transparency button on the left ear cup; voice assistant button on the right ear cup; backlit logo that can be switched off in the app
MicrophonesEight microphones in total, all used for calls; ADI Pure Voice call processingEight microphones with Clear Voice technology for calls
Fit and ear tipsOver-ear; leather and aluminium; ear cushions and headband replaceable by trained service engineersAround-the-ear, closed-back; genuine leather and microfibre headband, magnesium yoke, aluminium construction; clip-on earpads are replaceable
Works withBowers & Wilkins Music app for iOS and Android; Google Fast Pair; two devices at once; USB-C sound output for computers and phones; analogue input through the USB-C port with the supplied cable (Bluetooth disconnects)Focal & Naim app for iOS and Android; Google Fast Pair; two devices at once, up to eight remembered; 3.5 mm jack input on the right ear cup (switches off Bluetooth)
ColoursAnthracite Black, Canvas White, Indigo Blue, Frost Blue, Vintage MaroonGraphen Grey, Chestnut
In the boxHeadphones, carry case (177 x 60 x 234 mm), 1.2 m USB-C to USB-C cable, 1.2 m USB-C to 3.5 mm audio cable, document packHeadphones, rigid carrying case (24 x 21 x 7 cm), 1.2 m 3.5 mm jack cable, 1.2 m USB-C cable, quick start guide

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