Google Pixel Buds Pro 2 / Sennheiser MOMENTUM 4 Wireless

Google Pixel Buds Pro 2: GA12449-series in-ear earbuds; Porcelain, Hazel, Peony, Moonstone, Olive and other colours. The original Pixel Buds Pro and Pixel Buds 2a are separate models.

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.

SpecificationGoogle Pixel Buds Pro 2Sennheiser MOMENTUM 4 Wireless
Release year20242022
ChipGoogle Tensor A1 in each earbud

Google says Tensor A1 adapts audio to the environment up to 3 million times per second and runs noise cancellation twice as strong as the original Pixel Buds Pro; music and noise-cancellation processing run on separate paths.

Google		—
Noise controlActive Noise Cancellation with Silent Seal 2.0; Transparency mode; active in-ear pressure relief; Conversation Detection

Pressure relief reduces the plugged-ear feeling of sealed earbuds. Conversation Detection pauses music and switches to transparency when you start talking.

Google		—
DriverCustom-designed 11 mm dynamic driver per earbud Google—
MicrophonesThree mics per earbud; voice accelerometer; wind-blocking mesh covers

The voice accelerometer picks up jaw vibration while you speak to help separate your voice from ambient noise. Google’s Clear Calling and Super Wideband calling require compatible Pixel phones.

Google		—
ConnectivityBluetooth 5.4 with Super Wideband; works with Bluetooth 4.0+ devices

Full features need an Android 6.0 or newer phone, a Google Account and an internet connection; basic listening works with an iPhone.

Google		—
BatteryANC off 12 hours (48 hours with case); ANC on 8 hours (30 hours with case); 5 minutes charge gives 1.5 hours (ANC off)

Google’s blog footnote says figures were measured on pre-production hardware with other features disabled; real-world time may be shorter.

Google		—
Charging caseUSB-C and Qi-certified wireless charging; ringtone speaker for Find Hub; Hall effect sensor for open/close

The case speaker lets you ring a lost case through Find Hub.

Google		—
SensorsCapacitive touch (tap and swipe); IR proximity sensor; accelerometer and gyroscope

The proximity sensor pauses music automatically when you take an earbud out; swiping adjusts volume.

Google		—
DurabilityEarbuds IP54; case IPX4

IP54 limits dust ingress and resists splashing water from any direction; the earbuds should not be submerged. The case has no dust rating.

Google		—
Size and weightEarbud (medium tip) 22.74 × 23.08 × 17.03 mm, 4.7 g; case 49.9 × 63.3 × 25 mm, 65 g with earbuds

Google says the earbuds are 27% smaller and 24% lighter than the original Pixel Buds Pro.

Google		—
Software supportAutomatic security updates for at least three years from first availability on the US Google Store Google—
Type—Around-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 response—42 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
Impedance—Active 470 Ω, passive 60 Ω Sennheiser
Noise cancelling and microphones—Adaptive 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 codecs—Bluetooth 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 charging—700 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 use—Hi-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 app—Touch 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 box—Carry case; USB-C charging cable; audio cable with 3.5 mm and 2.5 mm jacks; airplane adapter Sennheiser
Water resistance—No IP rating listed

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

Sennheiser