Samsung Galaxy Buds4 Pro / Bose QuietComfort Ultra Headphones (2nd Gen)

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.

Bose QuietComfort Ultra Headphones (2nd Gen): QCUH2-HEADPHONEARN · second-generation over-ear Ultra

SpecificationSamsung Galaxy Buds4 ProBose QuietComfort Ultra Headphones (2nd Gen)
Release year20262025
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		Active noise cancellation; Quiet and ambient-sound Aware modes Bose
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		Power/Bluetooth and multifunction buttons; touch volume strip; wear detection Bose
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		—
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—
Launch—Announced 10 September 2025; available from 2 October 2025 Bose
Wireless—Bluetooth 5.4; multipoint connection to two devices

Bose quotes a 30 ft (about 9 m) range. On Snapdragon Sound sources, Gaming Mode uses aptX Adaptive.

Bose
Digital audio—USB-C; 24-bit / 48 kHz lossless audio support

The product page’s current FAQ says 16-bit, 44.1/48 kHz for USB audio; manufacturer sources disagree on bit depth.

Bose
Analog audio—2.5 mm headphone input; included 3.5 mm–2.5 mm cable; headphones must be powered on Bose
Battery—Up to 30 hours with ANC on and immersive audio off; 23 hours with immersive audio; 45 hours with both off

Manufacturer test figures; volume, settings and use affect runtime.

Bose
Charging—USB-C; up to 3 hours for a full charge; 15 minutes for up to 3 hours with ANC on Bose
Weight and size—Headphones about 264 g; 4.5 × 16.0 × 20.5 cm

Manufacturer figures are 0.583 lb and 1.772 × 6.299 × 8.071 in; metric values are converted.

Bose
In the box—Carry case; 3.5–2.5 mm audio cable; 1 m USB-C to USB-C cable

No charging adapter in the box.

Bose
Modes—Quiet, Aware, Immersion, Cinema; EQ and shortcuts in the Bose app Bose
Water resistance—No IP rating; avoid situations where the headphones may get wet Bose
PC calls—8.2.20 and later: two-way PC audio over USB-C; app compatibility varies Bose
Software 10.12.12—8 September 2026: LE Audio beta on compatible Android/Windows devices and improved USB calls Bose