kingkok Colorful OLED Screen Dynamic Heart Rate and Blood Pressure Watch with Pedometer Calories Counter Sleep Monitor Band Waterproof Fitness Tracker Smart Bracelet [Black];

Friendly Reminder：① it can't be used as a professional medical heart rate and BP monitoring instrument but be used as a daily monitoring assistant of heart rate and BP. ② do not press lateral buttom when swimming and diving in the water. ③ cowhide wristband soaked in water will reduce its service life, try to avoid it.

Operation Indications:
When start to monitor BP and heart rate, please be aware of the below aspects.
√Keep the wrist static, or it won't test BP data.
√Keep the heart rate lenses away from sweat and grease to avoid green light refraction.
√Adjust bracelet wearing location and wear it tightly to prevent light leakage, or it will lead to wrong data.

How to Update Time:
√Download the APP, open app, press "Settings", then press "Bracelet" and make a pair. Synchronize Data, then it will display the same time as smart phone.

Heart Rate and BP Measure Advices:
For Light Skin Friends: first open app, choose correct skin color, then press "Settings", then "Bracelet", then "Switch setting", then open "Wear test". Finally, enjoy heart rate monitor and BP measure.
For Dark Skin Friends: first open app, choose correct skin color, then press "Settings", then "Bracelet", then "Switch setting", then close "Wear test". Finally, enjoy heart rate monitor and BP measure.

Other Function Features:
→Counterdown
→Metric&Imperial Unit
→Brightness Adjustment
→Cowhide Full Grain Leather Wristband
→Automatic&Manual BP and Heart Rate Monitor
→Stopwatch(Open app, then press Settings→Bracelet→Switch setting→Stopwatch function, it's off by default.)
→Language Supports: English, Simplified&Traditional Chinese, German, Russian, Japanese, Spanish, Korean, Italian, French, Vietnamese, Portuguese.

Product Information:
Net Weight: 1.38 oz.
Cute Size: 9.9*1.6*0.4 Inches.