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Mio Slice HRM Activity Tracker

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Product Description

The Mio Slice HRM Activity Tracker gives you access to the physiological impact your training is having on your body.

This is the first wearable fitness tracker to feature PAI (Personal Activity Intelligence). PAI is a new metric that tracks your body’s response to all your physical activity; not just your steps. This gives you the feedback you can use to improve the quality of your life.

Mio’s Slice fitness tracker also offers sleep tracking, calories burned, distance and more. All this from a super stylish, water-resistant wristband with a simple one-button operation.


  • Requires the Mio PAI application for configuration. Free download in the App Store and Google Play Store.
  • iOS 9.0 and above
  • iPhone X, 8, 7, 7Plus, 6s, 6s Plus, 6, 6 Plus, and 5S
  • Android 5.0 and above
  • Google Nexus 5, 5x, 6, 6p
  • Samsung Galaxy S5, S6, S7, Note 5



  • PAI, heart rate, resting heart rate, sleep, calories burned, steps, distance, and time.


  • TPU strap, anodized aluminium main body and buckle


  • OLED

Battery Type:

  • Rechargeable li-poly battery with USB charger

Battery Life:

  • Up to 5 days (depending on usage and settings)

Water Resistant:

  • 30m/100 feet (3 ATM)

Sensors & Components:

  • Optical heart rate tracker
  • 3-axis accelerometer
  • Vibration motor


  • Bluetooth Low Energy 4.0+ (select devices)
  • 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.



  • Small fits wrists 5.5” to 6.75” / 13.97 cm to 17.15 cm in circumference
  • Large fits wrists 6.75” to 8.25” / 17.15 cm to 20.96 cm in circumference

Small Dimensions: (H x W x L)

  • 0.53” x 0.82” x 8.46”
  • 1.35 cm x 2.08 cm x 21.5 cm

Large Dimensions: (H x W x L)

  • 0.53” x 0.82” x 9.45”
  • 1.35 cm x 2.08 cm x 24 cm


  • Small: 0.99 ounces / 28 g
  • Large: 1.02 ounces / 29 g

    Occasionally, without notice, manufacturers change product design and/or specifications.

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    Computers Guide

    What type of computer should I use?

    Wired Computer Wireless Computer GPS Computer
    • Most affordable
    • Manually connects to your speed / cadence sensors
    • No issue of interference impacting data
    • Basic performance features
    • Mid-range
    • No wires (improves aesthetics)
    • Easy swap between bikes
    • Basic & advanced features
    • Smartphone connectivity (ANT+ / Bluetooth Smart)
    • Mid-range / Premium
    • No wires
    • Easy swap between bikes
    • Basic & advanced features
    • Smartphone connectivity
    • (ANT+ / Bluetooth Smart)
    • Accurate distance & altitude data

    Common Computer Features

    Basic Features Advanced Features
    • Speed
    • Average Speed
    • Max Speed
    • Cadence
    • Max Cadence
    • Ride Duration
    • Distance
    • Odometer
    • Heart rate monitor connectivity
    • Max heart rate
    • Altitude
    • Total ascent
    • Total descent
    • Temperature
    • Maps / GPS Route Plan
    • ETA at destination
    • ANT+ / Bluetooth Connectivity
    • Wi-Fi

    Can I pair my cycle computer with a smartphone, power meter and other devices? 

    You will need a wireless computer to sync with other devices. Most wireless computers sync using 2 wireless technologies – ANT+ & Bluetooth Smart.


    ANT+ enabled devices to talk to each other and present the information on a compatible device.

    Bluetooth Smart

    Bluetooth Smart is a low energy wireless technology designed for smart sport and fitness. The long battery life in sensors makes it ideal for regular use in cycling. 

    Always check your smartphone’s OS and 3rd party devices are compatible.

    Would a Watch / Fitness band be better for me?

    If you’re looking for something more versatile then cycle watches are a great alternative. You can still gather data from cycling sensors, but you can also gather data for different sports too. They are great for triathletes and those that do multiple sports. 

    You can easily transfer data from a road bike to a mountain bike, from running to swimming. There aren’t many outdoor exercises you can’t track.

    What software & Apps should I use?


    Strava is perhaps the most well-known cycling App / software around. All you need is to record your cycling with a compatible GPS device, upload it to Strava and then you can analyse your data. You can compare your performance to previous efforts, your mates and even pro riders - all of this, for free.

    Garmin Connect

    All Garmin computers and devices will work with Garmin Connect. This is an online service that allows you to analyse your performance data, and share it with your friends. Reports show you how you’re progressing and you can use the calendar feature to plan your training sessions over time. 

    Delivery & Guarantee

    UK Delivery Information

    We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

    Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

    Please note that Pre-Order dates can sometimes change due to updated stock information.

    Click here for more UK and international delivery information.

    Returns & Warranty

    It's easy to return a product with our 365 day, hassle free returns. 

    We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

    Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

    If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

    For more information please visit our Returns & Warranty page.

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