Two devices. One clear decision.

LAUNCH DATE2 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Released	2026-09-03	2026-10-01
Status	Available	Available

ADDITIONAL INFORMATION3 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Launch Price (USD)	$299.95 (US launch price)	$299 (US launch price)
Notes	—	Personal Surround support with Bose Smart Soundbars removed versus 1st Gen
Price in Nigeria	₦419,900 (estimate, converted from US launch price)	₦418,600 (estimate, converted from US launch price)

PRODUCT OVERVIEW5 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Brand	Sennheiser	Bose
Category	In-ear true wireless earbuds	Open-ear cuff true wireless earbuds
Launch Date	August 20, 2026	September 17, 2026
Model Name	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Price	$299.95 (US launch)	$299 (US launch)

AUDIO SPECIFICATIONS4 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Driver Size	7 mm	—
Driver Type	7 mm TrueResponse dynamic driver	Improved dynamic driver (deeper bass, higher volume), Bose OpenAudio technology
Frequency Response	5 Hz - 21 kHz	—
Sound Features	Up to 24-bit/96 kHz (lossless)	Spatial audio: Immersive Audio; Cinema Mode with Bose TrueSpatial head tracking

FEATURES AND SOFTWARE8 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Active Noise Cancellation (ANC)	Yes, hybrid adaptive ANC with adaptive anti-wind	No (open-ear)
App Support	Sennheiser Smart Control Plus	Bose app
Customizable EQ	Yes, 8-band graphic EQ in Smart Control Plus app	Yes, 3-band EQ in Bose app
Other Features	8-band graphic EQ, sound personalization (developed with Fraunhofer Institute), Dolby Atmos with head tracking, low-latency gaming mode; Google Fast Pair, Microsoft Swift Pair	Auto Volume, 3-band EQ (Bose app); Google Fast Pair
Sound Modes	Sound Personalization, genre presets, Dolby Atmos with head tracking, low-latency gaming mode	Immersion Mode, Cinema Mode, Stereo
Touch Controls	—	No, physical button on each earbud (play/pause, track, volume, calls)
Transparency / Ambient Mode	Yes, Natural Transparency mode with anti-occlusion compensation	—
Voice Assistant Support	—	Phone's native voice assistant (Alexa+ planned)

CONNECTIVITY AND INTEGRATION4 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Bluetooth Version	6.0, class 1	5.4, range up to 30 ft (9 m)
Multipoint	Yes	Yes, two devices
Range	—	9 m (30 ft)
Supported Codecs	SBC, AAC, aptX, aptX Adaptive, aptX Lossless	SBC, AAC, aptX Adaptive (Snapdragon Sound)

BUILD AND DESIGN6 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Colors Available	Graphite, Cream, Copper, Denim, Lavender	Black, White Smoke, Cherry Chocolate, Olive Green, Sky Pink (last three limited edition)
Dimensions	Case with earbuds: 67.2 x 48.4 x 25.0 mm	Earbud: 18.9 x 17.7 x 27.7 mm; Case: 47.5 x 26.8 x 66.0 mm
Form Factor	In-ear true wireless earbuds	Open-ear cuff true wireless earbuds
Ingress Protection	IP54 (earbuds only)	IPX4
Materials	—	Polycarbonate and silicone; metallic cap with beveled finish; flex-joint cuff
Weight	7 g (single earbud), 55 g (charging case), 62 g (total)	5.9 g (single earbud), 49.9 g (case)

BATTERY CAPACITY AND CHARGING7 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Battery Life (Standby)	—	Up to 20 hours (connected, no audio)
Battery Type	Li-Ion, user-replaceable	—
Charging Port	Qi wireless charging (v2.1); full charge approx. 1.5 hours	USB-C, wireless charging case; full charge 1 hour
Device Battery Capacity	72 mAh (each earbud), 760 mAh (case)	—
Fast Charging	8 min = 1 hour playback	10 min = up to 2 hours
Total Playtime	Earbuds: Up to 12 hours (ANC off), up to 6 hours (ANC on); With case: Up to 40 hours	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	Yes, Qi

MICROPHONES AND VOICE FEATURES3 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Hands-Free Calls Support	Yes	Yes, Bose SpeechClarity
Mic Count	4	2
Mic Type / Noise Reduction	4 mics per earbud incl. bone-conduction mic; AI and beamforming de-noising	2 microphones, Bose SpeechClarity voice isolation

BOX CONTENTS7 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Charging Cable	Yes, USB-C charging cable	Not listed in box contents (power adapter not included)
Ear Tips (if earbuds)	XS, S, M, L ear tips	No (open-ear cuff design)
Extras (cases, clips, mounts, etc.)	Charging case, battery replacement tool	Charging case
Included Items	—	Earbuds, charging case, quick start guide, safety sheet (no power adapter)
Main Device	One pair of MOMENTUM True Wireless 5 earbuds	2 Ultra Open Earbuds (2nd Gen)
User Manual	Yes, documentation	Quick start guide, safety sheet
Warranty Card	1-year manufacturer warranty	1-year Bose limited warranty

COMPATIBILITY2 fields

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Operating Systems	Android, iOS	Android, iOS (Bose app on Google Play and App Store); any Bluetooth device
Supported Devices	Bluetooth devices; Google Fast Pair (Android), Microsoft Swift Pair (Windows)	Any Bluetooth-enabled phone, tablet or computer; preorders from 19 Sep 2026

KEY HIGHLIGHT1 field

Specification	MOMENTUM True Wireless 5	Ultra Open Earbuds (2nd Gen)
Highlight	The Sennheiser MOMENTUM True Wireless 5 are premium earbuds with 7 mm TrueResponse dynamic drivers, hybrid adaptive ANC and support for aptX Adaptive/Lossless over Bluetooth 6.0.	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.