Package with 2 Original Straps
Support Android APP Install
2.1 inch Amoled Screen
2GB+16GB Memory
Wifi Support
Built-in GPS Google Map
Sport digital red watch face for ATS3085-S based smart watches 466*466 screen resolutionfor ATS3085-S based smart watches 466*466 screen resolution
October 12, 2026
NJYUAN HK13 Screenless Band
Original price was: $49.99.$29.99Current price is: $29.99.
- Chipset: Realtek 8762ESF
- Heart Rate Sensor: VC30FS
- G-Sensor: STK8321
- Compatibility: Android 4.0+ and iOS 9.0+
- App: QWatch Pro (supports heart rate, SpO₂, sleep, stress, HRV, menstrual cycle, sport modes, notifications, and more)
Ultra-Lightweight Fitness Tracker Band | Heart Rate, SpO₂ & Sleep Monitor
Track your health every day without feeling it on your wrist. This ultra-slim fitness band weighs just 11.4g and measures only 34.6 × 16.6 × 8.2 mm, making it one of the lightest continuous health monitors available. Designed for all-day comfort, it delivers accurate heart rate, blood oxygen (SpO₂), stress, HRV, sleep, and activity data while staying almost invisible.
Who It’s For
Ideal for people who want reliable health tracking without a bulky smartwatch. Perfect for office workers, runners, travelers, and anyone who prefers a minimal, screen-free wearable that still delivers essential biometric data.
Technical Highlights
- Chipset: Realtek 8762ESF
- Heart Rate Sensor: VC30FS
- G-Sensor: STK8321
- Compatibility: Android 4.0+ and iOS 9.0+
- App: QWatch Pro (supports heart rate, SpO₂, sleep, stress, HRV, menstrual cycle, sport modes, notifications, and more)
Stay informed about your body without the distraction of a screen. Lightweight. Accurate. Built for everyday wear.
Slim and Light Even Better
A Quality Choice
Lightweight and breathable. conforming to the wrist
Precision Sensing Everything at Your Wrist, Fully Under Control
100+ Sports Modes
Every step is precisely controled
Precision monitoring
All-day heart rate monitoring
Blood oxygen monitoring
Sleep monitoring
Long battery life
Fearless of water splashes, wear with ease
A variety of colors to match business or sports at wil
| Weight | 0.2 kg |
|---|---|
| Color | Black, Blue, Brown, Light Green, Red |
Specification
| Parameter | Specification |
|---|---|
| Dimensions | 34.6 × 16.6 × 8.2 mm (excluding strap) |
| Weight | 11.4 g |
| Colors | Black, Blue, Red, Orange |
| Main Functions | Heart rate monitoring, Blood oxygen (SpO2), Stress detection, Heart rate variability (HRV), Female menstrual cycle tracking, Shake to take photos, Multiple sport modes, Sleep monitoring, Step counting |
| Chipset Supplier | Realtek |
| Chipset | 8762ESF |
| App | QWatch Pro |
| Compatible Systems | Android 4.0 and above, iOS 9.0 and above |
| Memory | RAM 104 KB / ROM 272 KB / Flash 32 Mb |
| Bluetooth | Bluetooth 5.3 |
| G-Sensor | STK8321 |
| Heart Rate Sensor | VC30FS |
| Battery Type | Lithium polymer |
| Battery Capacity | 50 mAh |
| Charging Method | Magnetic charging |
| Charging Time | Approx. 1.5 hours |
| Battery Life | Up to 20 days of use / Up to 60 days standby |
| Waterproof Rating | 1 ATM |
| Notification | Motor vibration |
Shipping
Buyswear.com offer logistics line shipping mode. all shipping from China. All the package you can tracking on 17track.net.
Q & A
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