Device comparison
Two devices. One clear decision.
Choose the exact models, then compare every available specification in one aligned view.
Missing information stays missing. Only stored specifications are shown.
Complete comparison
Full specifications
Every available group and stored value, aligned by field.
LAUNCH DATE2 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Released | — | 2026-10-01 |
| Status | — | Available |
ADDITIONAL INFORMATION3 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Launch Price (USD) | $249.99 (reference only — see Price in Nigeria above for the actual retail price) | $299 (US launch price) |
| Notes | — | Personal Surround support with Bose Smart Soundbars removed versus 1st Gen |
| Price in Nigeria | ₦350,000 | ₦418,600 (estimate, converted from US launch price) |
PRODUCT OVERVIEW5 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Brand | Samsung | Bose |
| Category | True Wireless Earbuds | Open-ear cuff true wireless earbuds |
| Launch Date | March 11, 2026 | September 17, 2026 |
| Model Name | Samsung Galaxy Buds4 Pro (SM-R640) | Ultra Open Earbuds (2nd Gen) |
| Price | $249.99 | $299 (US launch) |
AUDIO SPECIFICATIONS4 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Driver Size | 11mm woofer + 5.5mm planar tweeter | — |
| Driver Type | 2-way system, dual amplifier (~20% larger woofer vs Buds3 Pro) | Improved dynamic driver (deeper bass, higher volume), Bose OpenAudio technology |
| Frequency Response | 20 Hz - 40,000 Hz | — |
| Sound Features | SSC-UHQ 24-bit/96kHz, Enhanced Adaptive EQ, Adaptive ANC 2.0, 360 Audio, Voice Detect, Siren Detect, Auracast | Spatial audio: Immersive Audio; Cinema Mode with Bose TrueSpatial head tracking |
FEATURES AND SOFTWARE8 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Active Noise Cancellation (ANC) | Yes, Adaptive ANC 2.0 (5 strength settings) | No (open-ear) |
| App Support | Galaxy Wearable app, 9-band equalizer | Bose app |
| Customizable EQ | Yes, 9-band EQ | Yes, 3-band EQ in Bose app |
| Other Features | — | Auto Volume, 3-band EQ (Bose app); Google Fast Pair |
| Sound Modes | ANC / Ambient / Adaptive | Immersion Mode, Cinema Mode, Stereo |
| Touch Controls | Pinch/swipe stem + head gesture (nod/shake for calls) | No, physical button on each earbud (play/pause, track, volume, calls) |
| Transparency / Ambient Mode | Yes, plus Voice Detect / Siren Detect | — |
| Voice Assistant Support | Bixby, Google Gemini, Perplexity | Phone's native voice assistant (Alexa+ planned) |
CONNECTIVITY AND INTEGRATION6 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Bluetooth Profiles | A2DP, AVRCP, HFP | — |
| Bluetooth Version | 6.1 | 5.4, range up to 30 ft (9 m) |
| Multipoint | Auto Switch across Galaxy ecosystem | Yes, two devices |
| Range | — | 9 m (30 ft) |
| Supported Codecs | SBC, AAC, LC3, SSC, SSC-UHQ (24-bit/96kHz) | SBC, AAC, aptX Adaptive (Snapdragon Sound) |
| Wired Mode | Not supported | — |
BUILD AND DESIGN6 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Colors Available | Black, White, Pink Gold (online-exclusive) | Black, White Smoke, Cherry Chocolate, Olive Green, Sky Pink (last three limited edition) |
| Dimensions | Earbud 18.1 x 19.6 x 30.9mm; Case 51 x 51 x 28.3mm | Earbud: 18.9 x 17.7 x 27.7 mm; Case: 47.5 x 26.8 x 66.0 mm |
| Form Factor | Sealed canal-fit design with silicone ear tips, pinch-control stem | Open-ear cuff true wireless earbuds |
| Ingress Protection | IP57 (case not water-resistant) | IPX4 |
| Materials | Premium metal finish stem + plastic body | Polycarbonate and silicone; metallic cap with beveled finish; flex-joint cuff |
| Weight | 5.1g per earbud | 5.9 g (single earbud), 49.9 g (case) |
BATTERY CAPACITY AND CHARGING6 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Battery Life (Standby) | — | Up to 20 hours (connected, no audio) |
| Charging Port | USB-C | USB-C, wireless charging case; full charge 1 hour |
| Device Battery Capacity | Earbud 61mAh; Case 530mAh | — |
| Fast Charging | — | 10 min = up to 2 hours |
| Total Playtime | Up to 7 hrs (ANC off) / 6 hrs (ANC on); 30 hrs / 26 hrs total with case | Earbuds: Up to 9 hours (up to 5 hours with Immersive Audio); With case: Up to 19.5 additional hours (28.5 hours total) |
| Wireless Charging | Yes, Qi-certified | Yes, Qi |
MICROPHONES AND VOICE FEATURES4 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Hands-Free Calls Support | Yes, plus head-gesture accept/decline | Yes, Bose SpeechClarity |
| Mic Count | 6 total (High-SNR digital mics + stem-base mic) | 2 |
| Mic Type / Noise Reduction | High-SNR mics, Super Wideband call tech | 2 microphones, Bose SpeechClarity voice isolation |
| Voice Assistant Trigger | Bixby / Gemini / Perplexity, touch and head-gesture | — |
BOX CONTENTS7 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Charging Cable | Not included | Not listed in box contents (power adapter not included) |
| Ear Tips (if earbuds) | 3 sizes silicone ear tips | No (open-ear cuff design) |
| Extras (cases, clips, mounts, etc.) | None notable | Charging case |
| Included Items | — | Earbuds, charging case, quick start guide, safety sheet (no power adapter) |
| Main Device | Earbuds + transparent clamshell case | 2 Ultra Open Earbuds (2nd Gen) |
| User Manual | Quick Start Guide | Quick start guide, safety sheet |
| Warranty Card | Included (2-year, US) | 1-year Bose limited warranty |
COMPATIBILITY3 fields
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Operating Systems | Android and iOS; SSC-UHQ requires One UI 6.1.1+ | Android, iOS (Bose app on Google Play and App Store); any Bluetooth device |
| Profiles Supported | A2DP, AVRCP, HFP | — |
| Supported Devices | Galaxy smartphones (full Galaxy AI incl. 360 Audio), other Android/iOS (basic) | Any Bluetooth-enabled phone, tablet or computer; preorders from 19 Sep 2026 |
KEY HIGHLIGHT1 field
| Specification | Galaxy Buds4 Pro | Ultra Open Earbuds (2nd Gen) |
|---|---|---|
| Highlight | Samsung's2026 flagship with a ~20% larger woofer, Adaptive ANC 2.0, Bluetooth 6.1, and head-gesture call controls. | The Bose Ultra Open Earbuds (2nd Gen) are cuff-style open-ear earbuds with an improved driver for deeper bass, Bose OpenAudio, Immersive Audio and Cinema Mode with TrueSpatial head tracking. |