Mi Band 4 Heart Rate Fitness Tracker


Whether you're doing high-speed battle rope training or an aerobic battle rope workout, Mi Smart Band 4 will track your heart rate, calories burned and more. Heart Rate Fitness Tracker can count steps, distance, calories burned, heart-rate, sleep, and comes with a different sports mode.


UPDATE: Due to COVID-19 disruptions and high demand please allow 3 weeks for delivery. 

We offer free, fast shipping to all over the world. 

Once you have placed your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase. 

Your order will be processed and shipped out in 1-3 business days. Orders placed on weekends will be processed next Monday. Processing time will be longer in holidays.

We may split your order into multiple shipments. If this occurs, you’ll be notified and receive a tracking number for each shipment.

Once your order is dispatched, depending on your country or region, estimated delivery time is between 7 to 14 business days. Please consider any holidays that might impact delivery times.

Depending on your country customs rules shipping might be subject to additional costs and/or delays. Our delivery partner will handle the clearance and will invoice you in local currency for the duties and taxes linked to your order.

If your delivery is significantly late, or you’re experiencing problems with tracking your order, please contact us immediately. 

By placing an order, you are responsible for the cost of return shipping back to Strechrite. We remind you that, before returning a product, you must first request the return authorization. To ask for a return, please contact our support at contact page!


  • Sleep monitoring that monitors sleep patterns and Stress monitoring that advises you to adjust your breathing, rest, and relax.
  • Heart-rate calculation that helps to create helpful information to aid exercise routines.
  • Battery Life and Magnetic Charging: It guarantees up to 14 days of continuous usage. It adopts a brand new charging solution by simply snapping the magnetic charging cable on to the back of the Mi Band 4.


  • RAM: 512KB
  • ROM: 16MB
  • Touch Screen: Yes
  • Case Material: Plastic
  • Band Detachable: Yes
  • Screen Type: Color LCD
  • Compatibility: All Compatible
  • Waterproof Grade: Life Waterproof
  • Screen Style: Rectangle/Square-shape
  • Screen Size: 0.95 inch
  • Resolution: 120 x 240 RGB
  • Color Depth: 24bit
  • Wristband width: 18mm
  • Wrist strap material: TPU
  • Wrist strap type: Removable wrist strap
  • Adjustable wrist strap length: 155-216mm


Recently viewed