MIO Slice Activity Tracker with Heart Rate Monitor - Small


Can be purchased using Cycle to work

The MIO Slice Activity Tracker with Heart Rate Monitor is the first wearable that provides a PAI score - the most meaningful way to track all your activity, motivating you to stay healthy. One glance at your PAI score instantly tells you if you’ve been active enough to stay healthy.

This small model fits wrists that are 5.5" to 6.75" in circumference (13.97cm to 17.15cm). 

  • Heart rate technology: Best in class, most accurate heart rate tracking, 24/7.
  • Activity tracking: Tracks steps / distance / calories burned.
  • Sleep tracking: Automatically monitors sleep quality.
  • Notifications: Receive phone call and text message alerts.
  • Water resistant up to 30m / 100ft
  • Reddot award winner – 2017


  • Tracks: PAI, heart rate, resting heart rate, sleep, calories burned, steps, distance, and time.
  • Material: TPU strap, anodized aluminum main body and buckle
  • Display: OLED
  • Battery Type: Rechargeable li-poly battery with USB charger
  • Battery Life: Up to 5 days (depending on usage and settings)
  • Sensors & Components: Optical heart rate tracker, 3-axis accelerometer and Vibration motor
  • Connectivity: Bluetooth Low Energy 4.0+ (select devices) and ANT+
  • Saves 7 days of activity data
  • Stores heart rate data at 1 second intervals during exercise, every 5 minutes below moderate activity, and every 15 minutes during sleep

Specification Overview

More Information
Brand Mio
Type Fitness Trackers with Heart Rate
Battery Life Up to 5 days
More Information
Eligible for cycle to work Eligible for cycle to work
Size N/A
Primary Colour Sienna
Brand Mio
Type Fitness Trackers with Heart Rate
Write Your Own Review
You're reviewing:MIO Slice Activity Tracker with Heart Rate Monitor - Small
Your Rating
Standard £2.99 or FREE on orders over £10
- Order by 3pm (Sun-Thurs) to be delivered within 3 working days
- Most bikes delivered within 5 working days.
- An estimated delivery window will be shown at the checkout.
Next Day £4.99
- Order by 3pm (Sun-Thurs) for Next Day delivery
Click and Collect FREE
- Order by 3pm (Sun-Thurs) to pick up in 2 working days
- Order by 3pm (Sun-Thurs) to pick up in 5 working days

PLEASE NOTE: If you have ordered more than one item these may arrive in multiple deliveries.


To find out more about bike delivery, as well as our easy returns service, head over to our delivery and returns page.


All of the bikes we sell online are built and inspected by our qualified mechanics – just like when you buy a bike from one of our stores. All you’ll need to do when you receive the bike is straighten the handlebars and attach one of the pedals. This service is free, and included every time you buy a bike. Find out more.