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 logistics line shipping mode. all shipping from China. All the package you can tracking on 17track.net.
Q & A
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