Samsung Galaxy Buds4 Pro / Sennheiser MOMENTUM True Wireless 4

Samsung Galaxy Buds4 Pro: Galaxy Buds4 Pro (SM-R640); White, Black and Pink Gold. The non-Pro Galaxy Buds4 and the Buds3 Pro are separate models.

Sennheiser MOMENTUM True Wireless 4: MOMENTUM True Wireless 4 (2024); Black Graphite 700365, White Silver 700366, Black Copper 700367 (Denim and Gold were added later). The over-ear MOMENTUM 4 Wireless and the in-ear MOMENTUM True Wireless 3/5 are separate models.

SpecificationSamsung Galaxy Buds4 ProSennheiser MOMENTUM True Wireless 4
Release year20262024
Drivers2-way; Super Wide woofer + tweeter

Separate drivers for bass and treble aim for better separation than a single driver covering both.

Samsung		—
Sound24-bit / 96 kHz Hi-Fi sound; 360 Audio with head tracking; Adaptive EQ 2.0 Samsung—
Noise controlAdaptive Active Noise Cancellation; Ambient Sound; Adaptive Noise Control; Voice Detect

Voice Detect lowers the music and lets in ambient sound when you start talking.

Samsung		—
Microphones and calls3 mics (2 outer high-SNR + 1 inner) and VPU; Super Wideband Call (16 kHz); DNN noise reduction Samsung—
BluetoothBluetooth 6.1 (LE Audio ready); Auracast; Auto Switch

Auto Switch moves the connection between Galaxy devices on the same Samsung account; Auracast lets several headsets join one broadcast.

Samsung		—
Battery capacityEarbud 61 mAh; case 530 mAh Samsung—
Playback time6 hours with ANC (26 with case), 7 hours without (30 with case) Samsung—
Talk time4.5 hours with ANC (20 with case), 5 hours without (22 with case) Samsung—
ControlsTouch and swipe; head gestures; voice commands; Gemini and Bixby

Head gestures let you accept or reject a call by nodding or shaking your head.

Samsung		—
DurabilityIP57; 0.9 m (3 ft) of water for 30 minutes

IP57 limits dust ingress and survives brief immersion; the case is not stated to have the same rating.

Samsung		IP54 dust and splash resistance (earbuds only)

The charging case is not covered by the IP rating.

Sennheiser
SizeEarbud 18.1 × 19.6 × 30.9 mm; case 51 × 51 × 28.3 mm Samsung—
CompatibilityOne UI 8.0 or later via phone settings; Android 11 or later via Galaxy Wearable; Bluetooth only on iOS; Windows 10 PCs; Samsung TVs from 2022

Because there is no iPhone app, features such as EQ and ANC settings are not available on iOS.

Samsung		—
ColoursWhite, Black, Pink Gold Samsung—
Type—True wireless stereo in-ear earbuds; ear-canal fit with ear fins

The box includes four sets of ear tips (XS/S/M/L) and three sets of ear fins (S/M/L).

Sennheiser
Driver—TrueResponse dynamic, 7 mm; 5 Hz–21 kHz; 107 dB SPL (1 kHz / 1 mW)

According to Sennheiser, audio resolution up to 24-bit/96 kHz is supported with a compatible source.

Sennheiser
Noise cancellation—Hybrid ANC, adaptive to surroundings; Transparency Mode

Adaptive mode sets the cancellation level automatically for the surrounding noise; Transparency Mode lets outside sound in without removing the earbuds.

Sennheiser
Bluetooth and codecs—Bluetooth 5.4 (Classic and LE Audio); SBC, AAC, aptX, aptX Adaptive/Lossless, LC3; A2DP, AVRCP, HFP, TMAP, PBP

aptX Lossless needs a Snapdragon Sound phone that supports it; an iPhone uses AAC. According to Sennheiser, Auracast broadcast listening only arrives through a firmware update. Multipoint lets it switch between two devices.

Sennheiser
Microphones—3 MEMS microphones per earbud (6 in total), beamforming noise reduction; 100 Hz–10 kHz Sennheiser
Battery—Up to 7.5 hours per charge (ANC off) / up to 7 hours (ANC on); up to 30 hours total with the case; lithium-ion, 75 mAh per earbud, 820 mAh case

Times were measured with an iPhone at medium volume (85 dB). According to Sennheiser, 8 minutes of charging gives about 1 hour of playback; the battery protect mode in the app slows charging and slightly lowers maximum capacity to extend battery lifespan.

Sennheiser
Charging—USB-C socket on the case (5 V, 1,000 mA max) and Qi wireless charging

A USB-C cable is in the box; there is no adapter.

Sennheiser
Weight and size—Single earbud 6.2 g; case 66.4 g; total 72.4 g; 70.1 × 44.6 × 34.8 mm with the case Sennheiser
App—Sennheiser Smart Control for iOS and Android: 5-band EQ, Sound Personalization, Sound Zones, touch control settings

Sound Personalization was developed with Fraunhofer IDMT and builds a sound profile from the user’s reactions to sample sounds.

Sennheiser
Operating conditions—Operating 0 to +40 °C; charging 5 to 35 °C Sennheiser