Mio Fuse Review: Effective Full Day Heart Rate + Activity Tracker

Editor rating

4/5 on June 5, 2017

User's rating

623 reviews


  1. All day long heart rate, activity and sleep tracking
  2. Wrist-based heart rate tracking without needing any extra strap
  3. Water resistance up to 30 meters


  1. Not a mobile phone companion
  2. Doesn't alert for phone notifications


If you need a pure activity tracker that can show heart rates without any additional strap, evaluate sleep quality and track activities like calories, steps, distance and speed all day long, Mio Fuse beats its competitors deep down.

Is your search is for a sleek all-in-one activity tracker that is featured with all common types of activity measurement sensors? Mio Fuse will not let you down.

This device is a complete package of activity tracker, heart rate monitor and sports watch dedicated to the sportsmen and athelets.

The endevour, progress and recovery is now on the wrist of Mio Fuse with beautiful illustration and reporting of activities.

Head over to the rest of the review to learn where it is good at and where it is not.


At the first glance, you can tell that the design of Mio Fuse is mainly a two-color rubber band with a LED display on top of it. The charging port and the clasp are the only materials that are made of metal.

The heart rate monitoring is in-built in the band and uses a laser-based technology to measure heart rate. So you will not require any additional chest or wrist strap like many of the devices do.

It has a water resistant built and survives water level up to 30 meters or 3 ATM. You can wear it when you are swimming to measure heart rate under water. Although remember that the body temparature might change and the measurement might not be same as it will be outside water.

Mio Fuse is available in three different colors (Aqua, Cobalt, Crimson) and two sizes (Small/Medium, Large). The outer part of the band is black and the inner part is where the color defers.

Have a look below which one gets your traction.

[Clicks on images below will take you to its official Amazon store]

Mio Fuse AquaMio Fuse Cobalt

Mio Fuse Crimson


1. Wrist-Based Heart Rate: Many smart devices need a chest or wrist strap to calculate heart rate. But Mio Fuse is an exception that uses in-band laser technology to determine the heart rate. Whether you are doing any exercise or performing a work, this device can show how’s your heart beating on its led screen.

2. Activity & Sleep Tracking: It tracks steps, calories burned, distance walked and speed along with sleep quality checker to ensure that what you are doing is going into the right direction. You can set your desired goal and monitor how far you are from accomplishing it.

3. Mio Pai Metrics: Personal Activity Intelligence (Pai) app is available for all the Mio devices to provide personalized metrics of activities. For example, it will calculate analytic data based on your age, gender, maximum heart rate and resting heart rate. Not all steps matters and better not be included to spoil the accurecy of metrics. It will determine when you are actually stepping or running and records that data according to its algorithm.

4. Connect to Fitness Apps: Mio Fuse is not limited to its own device, but enables you to trasmit data to a wide range of devices and machines that supports Bluetooth 4.0 and ANT+. Some apps that were recorded to work are Strava, RunKeeper, Pear Sports, DigiFit and more.

5. Offline Data Storage: To reduce the chance of losing data, it offers an offline storage up to 2 weeks of daily activity and 30 hours of heart rates. The data will sit there until it reaches its limit or you sync it with your phone.

6. Water Resistance: Unlike other devices, you are not restricted from going into water. The device functions under water and is able to track heart rate up to 30 meters water level without any possible error.

Charging & Connectivity

Mio Fuse runs and tracks activities on a continuous basis. However, there is a noticable battery flaw, although not everyone will call it a flaw.

The battery life benchmark is 7 days which sounds great. But the limitation is that if you use heart rate monitor not more than 1 hour/day.

That ultimately means, though the device tracks activity continuously, it can be toggled on/off. While, if you plan to keep heart rate on all day long, it can barely survive a day. Their recommended usage is that use heart rate on the workout hour and keep it off during others.

Regarding the connectivity, you will need the Mio GO app to configure settings and sync the tracker. This app is available both on Google Play and Apple Store.

The best thing about the Mio Fuse is that you are not limited to the wrist band or the phone to display data. You can transmit data to any exercise equipment or device that supports the connectivity medium of Bluetooth 4.0 or ANT+.

You can transmit and display measured data on devices such as bike computers, treadmils, exercise machines and gps watches. It will work like a normal heart rate sensor for any machine.

Note that Worth: Is Mio Fuse The Best Shot?

Are you the sports person who want to calculate efforts and performance by number? This is the right device and the all-in-one set of sports watch, activity tracker, heart rate and sleep monitor.

Not only for a limited time, you can use this device to track metrics on a continuous basis as long as charge lasts. It is built with water resistancy of 30m or 3ATM so tracking will not stop underneath water.

The downside of this activity tracker is that it is not a mobile phone companion. It is purely an activity tracker that doesn’t include hybrid features like notification alerts or calls. Contrary, it is independent from connecting to a phone and only requires one for syncing the data.

So those who are seeking for a sports companion that even works under water should go for Mio Fuse without thinking twice.