Sennheiser MOMENTUM 4 Wireless / Apple AirPods Max (Lightning, 2020)

Sennheiser MOMENTUM 4 Wireless: MOMENTUM 4 Wireless over-ear wireless headphones; Black (509266), White (509267), Graphite (700383) and later Brown, Teal, Copper and Denim colours. MOMENTUM True Wireless in-ear models and MOMENTUM 3 Wireless are separate products.

Apple AirPods Max (Lightning, 2020): AirPods Max 1, the first version with a Lightning charging port (2020); Silver, Space Grey, Sky Blue, Pink and Green. The 2024 USB‑C version and AirPods Max 2 are separate models.

SpecificationSennheiser MOMENTUM 4 WirelessApple AirPods Max (Lightning, 2020)
Release year20222020
TypeAround-ear, closed-back, wireless; active noise cancelling

The ear pads fully surround the ear; Sennheiser cites a lightweight design, padded headband and deep cushioned earpads for long-wear comfort.

Sennheiser		—
Driver and frequency response42 mm dynamic driver; 6 Hz–22 kHz; 106 dB SPL (1 kHz / 0 dB FS)

The frequency range describes measurement limits; the sound you hear is also shaped by the in-app equaliser and sound personalisation.

Sennheiser		—
ImpedanceActive 470 Ω, passive 60 Ω Sennheiser—
Noise cancelling and microphonesAdaptive hybrid ANC; 4 microphones in total (2 per side, MEMS, beamforming; 50 Hz–10 kHz); anti-wind mode; transparency mode

Hybrid ANC uses both outer and inner microphones; adaptive mode changes the level of cancellation to match ambient noise.

Sennheiser		—
Bluetooth and codecsBluetooth 5.2, Class 1; A2DP, AVRCP, HFP; SBC, AAC, aptX and aptX Adaptive

aptX Adaptive works only with Android phones that support it; iPhones use AAC. Multipoint connections are managed in the app.

Sennheiser		—
Battery and charging700 mAh lithium-ion; up to 60 hours with noise cancelling on; full charge in about 2 hours; up to 4 hours from 5 minutes of charging; USB-C 5 V 800 mA

Sennheiser says the 60 hours was measured with an iPhone at medium volume; higher volume and aptX Adaptive can shorten it.

Sennheiser		—
Wired useHi-res digital audio over USB-C; 3.5 mm / 2.5 mm analogue cable

When listening over USB-C, the headphones decode digital audio internally; the analogue cable works even with a flat battery.

Sennheiser		—
Controls and appTouch surface on the right cup; Smart Pause wear detection; Auto On/Off; 5-band equaliser and Sound Personalization in the Smart Control app

Smart Pause stops playback when the headphones are taken off and resumes when they are put back on; Auto On/Off shuts them down to save power when not in use.

Sennheiser		—
In the boxCarry case; USB-C charging cable; audio cable with 3.5 mm and 2.5 mm jacks; airplane adapter Sennheiser—
Water resistanceNo IP rating listed

With no certification against sweat or rain, care is needed when it gets wet during exercise.

Sennheiser		—
Audio technology—Apple-designed dynamic driver; Active Noise Cancellation; Transparency mode; Personalised Spatial Audio with dynamic head tracking; Adaptive EQ

A Personalised Spatial Audio profile is created with an iPhone that has a TrueDepth camera; the feature needs compatible content and apps.

Apple
Chip—Apple H1 headphone chip in each ear cup Apple
Microphones—Nine microphones in total: eight for noise cancellation; three for voice pickup (two shared with noise cancellation) Apple
Sensors—Optical, position and case-detect sensors plus an accelerometer in each cup; gyroscope in the left cup

The position and optical sensors detect when the headphones are put on or taken off to pause and resume playback.

Apple
Controls—Digital Crown (volume, play/pause, calls, track skip, Siri) and noise control button

Turning the Digital Crown changes the volume; the noise control button switches between Active Noise Cancellation and Transparency mode.

Apple
Battery—Up to 20 hours of listening with Active Noise Cancellation or Transparency on; up to 20 hours of movies with Spatial Audio on; 5 minutes of charge gives about 1.5 hours of listening

Apple’s figures come from pre-production tests with an iPhone 12 Pro Max in November 2020.

Apple
Charging and case—Charging via Lightning; the battery enters an ultra-low-power state in the Smart Case

The box contains the headphones, the Smart Case and a Lightning to USB‑C cable. There is no separate power button; the Smart Case handles power saving.

Apple
Connectivity—Bluetooth 5.0 Apple
Size and weight—187.3 × 168.6 × 83.4 mm; 384.8 g with cushions; Smart Case 134.5 g Apple
Compatibility—Apple devices running the latest iOS, iPadOS, watchOS, macOS or tvOS

They work as Bluetooth headphones with Apple devices on older software and with non-Apple devices, but functionality is limited.

Apple