Package with 2 Original Straps
Support Android APP Install
2.1 inch Amoled Screen
2GB+16GB Memory
Wifi Support
Built-in GPS Google Map
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NJYUAN R8 Heart Rate Multi Sport Mode Track Smart Ring
Original price was: $59.99.$39.99Current price is: $39.99.
🖥️ Master chip: NORDIC NRF52832-CIAA
🔋 Charging chip: Siyuan SY8602
📉 Accelerometer: QMA6100P
🔋 Battery: 23mAh, 3.7/4.2V lithium battery
| Brand | |
|---|---|
| Color | Black, Silver |
| Ring Size | 10-perimeter 62.1mm-diameter 19.8mm, 11-perimeter 64.6mm-diameter 20.6mm, 9-perimeter 59.5mm-diameter 18.9mm |
Specification
| Master chip | NORDIC NRF52832-CIAA |
| Charging chip | Siyuan SY8602 |
| Accelerometer | QMA6100P |
| Battery | 23mAh,3.7/4.2Vlithium battery |
| Optoelectronic PPG analog front end (PPG AFE) | Tianyi Hexin HX3605 |
| Motion measurement | Calories, steps, mileage |
| sleep monitoring | 20:00 ~ 8:00 (automatically extended to 12:00) |
| Multi-sport modes | Running, cycling, rope skipping, fitness, mountain climbing, yoga, golf, dancing |
| Heart rate measurement | support |
| blood pressure measurement | Support photoelectric |
| blood oxygen measurement | Support precision |
| Automatic health monitoring | support |
| Activity information data storage | support |
| Historical data storage period | 7-day rolling save |
| Low battery shutdown | support |
| OTA upgrade | support |
| Automatic recovery function | support |
| Self-test function | support |
| Fast and slow broadcast switching function | support |
| Clear relevant data at zero crossing | support |
| Step counting accuracy | ≥95% |
| sleep detection error | ≤1 hour |
| Resting heart rate accuracy | ±5bpm |
| Dynamic heart rate accuracy | ±20bpm |
| blood pressure accuracy | ±10mmHg (average difference) |
| blood oxygen accuracy | ±3% |
| ECG signal | Adaptable to dry skin, wave quality without noticeable noise |
| Working life | 7 days |
| Standby battery life | 60 days |
| Battery life when turned off | 180 days |
| Power consumption requirements | Shutdown power consumption: ≤10uA Standby power consumption: ≤50uA |
| Battery display error | ≤3% |
| Charging time (hours) | 1±0.5 |
| Bluetooth emission strength | 0dB |
| Bluetooth center frequency frequency deviation | ±24KHz |
| Bluetooth receiving signal strength | ≥-50dB |
| Bluetooth wireless sensitivity | ≥-90dB |
| Button life | ≥100000 times |
| Average no-reset time | ≥200 hours |
| Mean time between failures (MTBF) | ≥1 year |
| Speaker output effect | No noise, no cracking |
| Operating temperature | 0~45℃ |
| Storage temperature | -10~55℃ |
| Working humidity | 5%~95% (no condensation) |
| Static Protection | Static electricity standard contact: ± 6KV, air: ± 10KV |
| surge protection | 12V |
| Drop requirements | Refer to GB/T 2423.8 standard |
| Vibration requirements | Refer to GB/T2423.10 standard |
| Charging temperature protection | 45℃ |
| Electromagnetic compatibility (EMC/EMI) | N/A |
| APP system requirements | Android: 6.0 or aboveiOS: 11.0 or above |
| Bluetooth version | 5.2 |
| Charging voltage | 4.6~5.2V |
Shipping
Buyswear.com offer 2 shipping mode. all shipping from China. All the package you can tracking on 17track.net.
Free shipping by post, we arrange shipping in 48 hours after make the order. and this mode delivery time cost about 15 days. it have not tax to Euro customers. Free shipping to India, Middle East Countries too!
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