SENNHEISER-MOMENTUM True Wireless 4
Cutting-edge true wireless earbuds featuring Qualcomm S5 Sound Gen 2 platform with aptX Lossless and 24bit/96kHz support. The 7mm TrueResponse drivers achieve low distortion (0.08%@94dB) and wide frequency response (5Hz-21kHz). Positioned competitively within the premium true wireless market against Sony, Apple, and Bose flagship products with comparable pricing and superior technical specifications.
Overview
The MOMENTUM True Wireless 4 represents Sennheiser’s latest flagship true wireless earbuds. Built on the Qualcomm S5 Sound Gen 2 platform, they support next-generation audio standards including aptX Lossless, Bluetooth LE Audio, LC3, and AURACAST. The proprietary 7mm TrueResponse drivers deliver wide frequency response (5Hz-21kHz) and remarkably low distortion (0.08% at 94dB) despite their compact size. Additional features include IP54 dust and water resistance, up to 30 hours battery life, and advanced ANC powered by a 6-microphone array.
Scientific Validity
\[\Large \text{0.9}\]The measured distortion rate of 0.08% at 94dB represents excellent performance, achieving auditory transparency. The 5Hz-21kHz frequency response adequately covers human hearing range (20Hz-20kHz) with margin. aptX Lossless transmission up to 24bit/48kHz exceeds CD quality (16bit/44.1kHz), though practical benefits within Bluetooth bandwidth constraints remain theoretical. The objectively measured low distortion characteristics merit high scientific validity scores.
Technology Level
\[\Large \text{0.9}\]Implementation of Qualcomm’s latest S5 Sound Gen 2 platform, proprietary 7mm TrueResponse drivers, and triple-channel ventilation system for distortion reduction represent industry-leading technology. Bluetooth 5.4 support and future Auracast compatibility (via firmware update) demonstrate forward-thinking specifications. The 6-microphone array enhancing both voice pickup and ANC performance, plus Qi wireless charging support, showcase refined implementation. However, these advanced technologies don’t necessarily translate to audible superiority.
Cost-Performance
\[\Large \text{0.7}\]At USD 299.95 market price, this product competes within the premium true wireless segment. Primary competitors include Sony WF-1000XM5 (USD 160 equivalent to JPY 23,900, LDAC, industry-leading ANC), Apple AirPods Pro 2 (USD 186 equivalent to JPY 27,698, H2 chip, Spatial Audio), and Bose QuietComfort Ultra Earbuds (USD 194 equivalent to JPY 28,880, top-tier ANC). All feature THD <1%, advanced ANC, and extended battery life. This product’s 0.08% THD is superior, though audible differences remain limited. Against the lowest-priced Sony WF-1000XM5: CP = 160 ÷ 300 = 0.53, indicating higher pricing within the premium segment.
Reliability & Support
\[\Large \text{0.7}\]Sennheiser brand reliability remains industry-standard with a typical 2-year warranty. However, consumer division sale to Sonova introduces some uncertainty regarding long-term support. IP54 rating provides adequate daily-use protection but doesn’t exceed competitor offerings. Firmware update capability (including planned Auracast support) is commendable but expected at this price tier.
Rationality of Design Philosophy
\[\Large \text{0.4}\]While technically sophisticated, many implementations represent over-engineering without audible benefits. 24bit/96kHz capability offers theoretical advantages but limited practical value under Bluetooth bandwidth constraints. The compact 7mm driver design, while technically impressive, shows no clear advantage over budget products with 10mm+ drivers. Rather than rational design justifying premium pricing, this appears more like technical indulgence.
Advice
This product delivers cutting-edge performance within the premium true wireless market. Compared to Sony WF-1000XM5 (USD 160), Apple AirPods Pro 2 (USD 186), and Bose QuietComfort Ultra Earbuds (USD 194), it offers superior THD performance (0.08%), aptX Lossless support, and future Auracast compatibility. However, the nearly 2x price premium over the Sony WF-1000XM5 may be difficult to justify for most users. Recommended for users specifically seeking Sennheiser’s audio signature and latest codec support who prioritize technical specifications over value. Those seeking optimal price-to-performance should consider the Sony WF-1000XM5. For absolute sound quality pursuits, wired IEMs remain viable alternatives at this price point.
(2025.7.6)