xMEMS Labs has announced an enhanced version of its Sycamore solid-state speaker, now optimized for smartwatches as the Sycamore-W. The company has also confirmed a mass production timeline, marking a major step forward in audio technology for wearables.
The Thinnest Speaker for Wearables
xMEMS claims the Sycamore-W is the thinnest speaker designed for wearable devices. Measuring just 20 × 4 × 1.28 mm and weighing a mere 150 mg, it’s 70% smaller than conventional smartwatch speakers (which typically measure 3–4 mm thick and weigh up to 3 grams). This compact design frees up valuable internal space, allowing manufacturers to integrate larger batteries or additional components.
Piezoelectric-Driven, High-Fidelity Sound
Unlike traditional speakers, the Sycamore-W uses thin-film piezoelectric actuators to vibrate a silicone membrane, producing sound without moving coils. According to xMEMS, the speaker delivers strong mid and low frequencies comparable to bulkier alternatives while excelling in high-frequency clarity—making it ideal for voice calls, notifications, and even music playback.
Durability is another key advantage: the speaker is highly resistant to shocks, dust, and moisture, boasting an IP58 rating—a critical feature for fitness-focused smartwatches.
Mass Production & Future Applications
Smartwatch manufacturers have already received engineering samples, with volume production slated for Q2 2026.
In addition to the Sycamore-W, xMEMS showcased a silicon MEMS tweeter for wireless earbuds. This tiny driver can hit 115 dB (louder than many concert speakers!) across a 6–20 kHz frequency range—without needing an external amplifier.