I have one, love it, my daughter took it and I bought the charge version for myself. This is the perfect training tool for HIIT and is very easy to use. The watch strap is useless as the timer cannot be pulled down to lock it there. It may fly out of the harness when running. I did a thorough inspection and removed two small legs from the strap (the red bikes in the photo). After that the problem was fixed. The strap material could be softer (with silicone?).
6 Pcs Reflective Bands: High Visibility Running Gear For Women Men - Safety Straps Bracelets For Running, Cycling & Walking
46 Review
Ultimate Fitness Tracker: Xiaomi Mi Smart ποΈ Band 6 - 1.56'' Offers Unmatched Features and Performance
78 Review
Segmented Beaded Kids Jump Rope For Exercise And Outdoor Activities - Durable And Shatterproof - Easily Adjustable And Light Weight Skipping Rope For Kids
48 Review
Stay Comfortable And Stylish With DASUTA Sweatbands For Women And Men
55 Review