Since our last Sony WF-1000XM6 report, fresh leaks from The Walkman Blog and NotebookCheck (Dec 7, 2025) have dropped, confirming a Mediatek MT2855 chip for efficiency gains and AI DSEE Ultimate upscaling. FCC filings and import documents point to production ramp-up, making XM6 Sony's hottest earbuds prospect this holiday season. This update analyzes the new intel, why late 2025 launch makes sense, and what it means for XM5 owners.

New Leaks: Mediatek Chip, AI DSEE & Smaller Design

The latest from The Walkman Blog (Dec 6) reveals the XM6 (YY2985) uses Mediatek MT2855 for low-power Bluetooth 5.4, enabling 9-10h battery (up from XM5's 8h). NotebookCheck confirms AI DSEE Ultimate for real-time audio upscaling, and import leaks show smaller buds with matte finish.

• Mediatek MT2855: Efficiency boost, multipoint for 3 devices
• AI DSEE Ultimate: Neural net for compressed audio enhancement
• Design: Smaller form, custom tips, Vietnam production
• Price: $279-$299 (slight hike from XM5)

Updated Release Timeline: Late 2025 Locked In

FCC expiry March 31, 2026, and ISED approval (Oct 13) confirm Q4 2025 or Q1 2026 launch. Zackbucks' H1 2025 miss was off, but What Hi-Fi? now predicts summer 2025 reveal with holiday shipping. Reddit discussions (113 upvotes) speculate CES 2026 demo.

• FCC: Expiry March 2026 (1-2 months pre-launch)
• ISED: Oct 13 approval (testing done)
• App Leak: May 2025 model reference
• Production: Vietnam ramp-up for cost savings

Wishlist vs XM5: Incremental Wins

Leaks suggest refinements over XM5. Trusted Reviews wishes USB-C passthrough; Digital Trends adds LC3 codec. Reddit users (61 comments) debate if AI DSEE justifies upgrade.

• Battery: 9-10h (up from 8h)
• ANC: AI beamforming for calls
• Design: Smaller + IPX5 rating
• Audio: LDAC + LC3, spatial head-tracking

Final Thoughts

With Mediatek and AI leaks, late 2025 feels real. XM5 owners hold tight; upgrades look incremental, but battery and fit wins could sway. Stay tuned for reveal — Sony's holiday gift?