Soundcore Sleep Earbuds 4 Pro Debut at IFA 2026: $349 Sleep Earbuds With Heart Rate Tracking and AMOLED Case

Anker's Soundcore division has unveiled the Sleep Earbuds 4 Pro at IFA 2026, a $349 pair of sleep-focused earbuds that cross into health-tracking territory previously owned by smart rings and fitness bands. The headline feature is in-ear PPG sensors that continuously monitor heart rate, heart rate variability, and sleep stages throughout the night — no wrist-worn device required.

Key Specifications

• Sensors: In-ear PPG for heart rate, HRV, and sleep stage detection
• Case: AMOLED touchscreen for settings, alarms, and morning sleep summaries
• Audio: BioSync adaptive sound engine that adjusts audio to your physical state
• Noise management: Adaptive snore masking and sleep-focused noise reduction
• Price: $349
• Availability: November 2026

BioSync and Adaptive Snore Masking

The standout software feature is BioSync, which reads your biometric state in real time and adjusts the soothing audio accordingly. If your heart rate drops into deep sleep territory, the earbuds shift to quieter, slower soundscapes. If it detects restlessness, it switches to calming tones designed to ease you back to sleep.

Adaptive snore masking analyzes the snoring pattern in real time and generates a masking sound profile that adjusts dynamically — unlike static white noise machines that either overwhelm or underwhelm.

What Buyers Should Know

At $349, the Sleep Earbuds 4 Pro cost the same as an Oura Ring 4 — but without a monthly subscription. The trade-off is that they only track you while you wear them in bed, not 24/7 like a ring or band. For dedicated sleep trackers who find wrist devices uncomfortable, these fill a genuine gap. The standard Sleep Earbuds 4 launch in October for $229 without the heart rate sensors. Compare all sleep-tracking options in our wearable health guide.