
NJYUAN HK12 ULTRA 4 Smart Watch
November 4, 2026
NJYUAN HT51 Screenless Bracelet
November 7, 2026





NJYUAN S01 Smart Sleep Eye Mask
€100.59 Original price was: €100.59.€50.29Current price is: €50.29.
Smart Sleep Eye Mask with 24/7 Heart Rate & SpO2 Monitoring | Wireless Music Sleep Headphones
Product Overview
Experience ultimate relaxation and precise health tracking with the Smart Sleep Eye Mask. Engineered with advanced BLE 6.0 connection and integrated biometrics, this 3-in-1 sleep solution combines 24/7 heart rate monitoring, SpO2 blood oxygen tracking, comprehensive sleep analysis, and built-in Bluetooth music playback. Designed with ultra-soft skin-feel fabric and light-blocking contours, it delivers all-night comfort while empowering you with actionable health insights.
Key Features & Benefits
24/7 Continuous Health Tracking
Equipped with high-precision PPG sensors (HX3695H) and advanced G-sensors, the mask tracks your sleep stages (Deep, Light, REM), heart rate variability (HRV), and blood oxygen (SpO2) levels in real time.
Immersive Wireless Audio
Seamlessly stream relaxing ambient sounds, white noise, or your favorite playlists directly via ultra-thin built-in speakers without disturbing your bed partner.
Ergonomic 100% Blackout Design
Dimensions ($400 \times 105 \text{ mm}$) and soft skin-touch materials contour naturally to your face, eliminating pressure on the eyes and blocking out 100% of external light.
Ultra-Low Power & Long Battery Life
Powered by a 300mAh battery and BLE 6.0 low-energy protocol, enjoying up to 25 days of standby time on a single fast Type-C charge.
Comprehensive Multi-Language App Support
Sync data via iOS and Android apps with support for over 35 languages including English, German, French, Spanish, Japanese, Korean, and Simplified/Traditional Chinese.
Frequently Asked Questions (FAQ)
Q1: Is the mask comfortable for side sleepers?
A: Yes. The ultra-thin flat speakers and ergonomic contouring ensure side sleepers experience no painful pressure on their ears or temples.
Q2: How do I view my sleep and health reports?
A: Download the companion health tracking app on iOS or Android. Turn on Bluetooth to auto-sync your nightly sleep scores, continuous heart rate, and SpO2 tracking data.
Q3: How long does the battery last?
A: The integrated 300mAh lithium battery delivers up to 25 days of standby time or multiple nights of continuous audio playback and biometric tracking per full Type-C charge.

AI Smart Sleep Mask


AI Sleep Companion Custom White Noise

AI Sleep Coach No manual data reading

Auto-stop on deep sleep, no timer

AI generates exclusive sleep reports

3-in-1

Different places same relaxing routine

Long battery life, 24/7 companionship

Fold & carry rest on the move
| Weight | 0.4 kg |
|---|
Specification
| Category | Specification Item | Value / Details |
| Product Overview | Product Name | Smart Sleep Eye Mask |
| Key Features | 24-Hour Sleep Tracking, Heart Rate Monitoring, SpO2 (Blood Oxygen) Monitoring, Music Playback | |
| Technical Specifications | Bluetooth Version | BLE 6.0 |
| Main Chipset | AB5791G | |
| PPG Sensor | HX3695H | |
| Motion Sensor (G-Sensor) | CWM7A21H (with Cywee P02-2 algorithm) | |
| Memory | 128 Mb | |
| Power & Battery | Battery Capacity | 300 mAh |
| Charging Method | Type-C | |
| Standby Time | Up to 25 Days | |
| Design & Build | Product Dimensions | 400 × 105 mm |
| Material | Plastic with Soft-Touch Skin-Feel Coating / Fabric | |
| Software & App | App Download | Search & download via Google Play Store & Apple App Store |
| Supported App Languages | English, Simplified Chinese, Traditional Chinese, German, French, Arabic, Czech, Greek, Spanish, Japanese, Farsi, Italian, Korean, Dutch, Polish, Portuguese, Russian, Finnish, Swedish, Thai, Hungarian, Slovak, Croatian, Albanian, Turkish, Ukrainian, Hindi, Bulgarian, Danish, Estonian, Hebrew, Indonesian, Lithuanian, Malay, Norwegian, Romanian, Slovenian, Urdu, Vietnamese |
Shipping
Buyswear.com offer logistics line shipping mode. all shipping from China. All the package you can tracking on 17track.net.
Q & A
Related products
-
NJYUAN C6S
€23.13???? Screen Display Size: 0.96 inch
????️ Screen Resolution: 128*96
???? Sleep Monitoring
???? Incoming Call Alerts
???? Message Notifications
???? Sedentary Reminder
???? Find Your Bracelet -
NJYUAN Z98 4G Amoled Compass Smart Watch
???? AMOLED Screen
❤️ Heart Rate Monitoring
➡️????Compass
???? Ultra clear screen€60.35Original price was: €60.35.€30.17Current price is: €30.17. -
NJYUAN S3 Smart Bracelet
???? IP68 Waterproof
❤️ 24/7 Health Tracking
???? Wave-to-Snap Feature
???? 5-Day Battery Life
???? Smarter Fitness€40.23Original price was: €40.23.€30.17Current price is: €30.17.















Reviews
There are no reviews yet