DailyTechPricesDevice Comparison
| Buds 4 Pro | Ultra Open Earbuds (2nd Gen) | |
|---|---|---|
| LAUNCH DATE | ||
| Released | — | 2026-10-01 |
| Status | — | Available |
| ADDITIONAL INFORMATION | ||
| Launch Price (USD) | $268.00 (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 | ₦375,000 | ₦418,600 (estimate, converted from US launch price) |
| PRODUCT OVERVIEW | ||
| Brand | Xiaomi | Bose |
| Category | True Wireless Earbuds | Open-ear cuff true wireless earbuds |
| Launch Date | August 11, 2022 | September 17, 2026 |
| Model Name | Xiaomi Buds 4 Pro | Ultra Open Earbuds (2nd Gen) |
| Price | €249.99 global (~$268 USD); China price CNY 999 (~$145) | $299 (US launch) |
| AUDIO SPECIFICATIONS | ||
| Driver Size | 11 mm | — |
| Driver Type | Dynamic driver | Improved dynamic driver (deeper bass, higher volume), Bose OpenAudio technology |
| Impedance | 16 ohm | — |
| Sound Features | Dimensional/Spatial Audio with head tracking, Intelligent Fit Monitoring | Spatial audio: Immersive Audio; Cinema Mode with Bose TrueSpatial head tracking |
| FEATURES AND SOFTWARE | ||
| Active Noise Cancellation (ANC) | Yes, up to 48dB adaptive ANC | No (open-ear) |
| App Support | Xiaomi Earbuds app | Bose app |
| Customizable EQ | — | Yes, 3-band EQ in Bose app |
| Other Features | — | Auto Volume, 3-band EQ (Bose app); Google Fast Pair |
| Sound Modes | ANC / Transparency / Off, Dimensional Audio | Immersion Mode, Cinema Mode, Stereo |
| Touch Controls | Force sensor stem — pinch gestures | No, physical button on each earbud (play/pause, track, volume, calls) |
| Transparency / Ambient Mode | Yes, 3 modes | — |
| Voice Assistant Support | Google Assistant / Siri (via phone) | Phone's native voice assistant (Alexa+ planned) |
| CONNECTIVITY AND INTEGRATION | ||
| Bluetooth Profiles | BLE, HFP, A2DP, AVRCP | — |
| Bluetooth Version | 5.3 | 5.4, range up to 30 ft (9 m) |
| Multipoint | Yes, dual-device | Yes, two devices |
| Range | 10m (open space) | 9 m (30 ft) |
| Supported Codecs | SBC, AAC; proprietary up to 990kbps/32-bit | SBC, AAC, aptX Adaptive (Snapdragon Sound) |
| Wired Mode | Not supported | — |
| BUILD AND DESIGN | ||
| Colors Available | Star Gold, Space Black | Black, White Smoke, Cherry Chocolate, Olive Green, Sky Pink (last three limited edition) |
| Dimensions | Earbud 30.74 x 21.23 x 23.67mm; Case 46.58 x 59.28 x 26.79mm | Earbud: 18.9 x 17.7 x 27.7 mm; Case: 47.5 x 26.8 x 66.0 mm |
| Form Factor | In-ear with silicone tips | Open-ear cuff true wireless earbuds |
| Ingress Protection | IP54 | IPX4 |
| Materials | Plastic housing, silicone ear tips | Polycarbonate and silicone; metallic cap with beveled finish; flex-joint cuff |
| Weight | Earbud 5.0g; Case 39.5g | 5.9 g (single earbud), 49.9 g (case) |
| BATTERY CAPACITY AND CHARGING | ||
| 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 53mAh; Case 565mAh | — |
| Fast Charging | Case input 5V/2.3A | 10 min = up to 2 hours |
| Total Playtime | 9 hrs (ANC off); up to 38 hrs 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 | Yes, Qi |
| MICROPHONES AND VOICE FEATURES | ||
| Hands-Free Calls Support | Yes | Yes, Bose SpeechClarity |
| Mic Count | 3 mics + VPU per earbud | 2 |
| Mic Type / Noise Reduction | 3-mic + VPU with AI call noise cancellation | 2 microphones, Bose SpeechClarity voice isolation |
| BOX CONTENTS | ||
| Charging Cable | USB-C cable | Not listed in box contents (power adapter not included) |
| Ear Tips (if earbuds) | Multiple silicone sizes | No (open-ear cuff design) |
| Extras (cases, clips, mounts, etc.) | Charging case | Charging case |
| Included Items | — | Earbuds, charging case, quick start guide, safety sheet (no power adapter) |
| Main Device | 2x earbuds | 2 Ultra Open Earbuds (2nd Gen) |
| User Manual | Yes | Quick start guide, safety sheet |
| Warranty Card | — | 1-year Bose limited warranty |
| COMPATIBILITY | ||
| Operating Systems | Android, iOS | Android, iOS (Bose app on Google Play and App Store); any Bluetooth device |
| Profiles Supported | HFP, A2DP, AVRCP, BLE | — |
| Supported Devices | Bluetooth 5.3+ smartphones/tablets | Any Bluetooth-enabled phone, tablet or computer; preorders from 19 Sep 2026 |
| KEY HIGHLIGHT | ||
| Highlight | Xiaomi's 2023 flagship ANC earbuds, notable for 48dB adaptive ANC and Dimensional spatial audio with head tracking. | 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. |