The Mio Fuse is a fitness tracker for seriously sporty types, with aspirations of being an all-day wearable for the casual fitness fan — but it’s too large and the software too complicated to be successful. The PAI app is interesting, however, and the...

Accurate heart-rate tracking ; Big display ; Durable and rugged design

Touch features are frustrating to use ; Wraps too tightly around wrist ; Cluttered app experience

The Mio Fuse is one of the most accurate ways to monitor heart rate from the wrist, but the awkward controls and bulky design means there are better options available.

Fantastic heart-rate monitoring Excellent battery life Great compatibility with other apps and devices

Uninspiring design Inaccurate step counting Limited companion app

If you're absolutely sold on the heart-rate options, and you want something that'll give you that data without the weight of a chest-strap, we would absolutely recommend the Mio Fuse, and we think you'll be more than happy. Just don't come expecting...

Stylish design that fits comfortably ; Scrolling LED display ; Daily totals can be viewed through the display ; Excellent battery life

No real-time heart rate tracking ; No sleep tracking ; App experience can’t measure up to its rivals

Without a doubt, the Mio Fuse has the stylish design to make people take notice of it. And it helps, too, that its LED display is a head turner when it’s activated. Most people will be instantly affixed to the Mio Fuse’s design, but it just can’t...

Comfortable, adjustable design. ; Accurate heart rate monitor that can support high heart rate levels. ; Can track a number of exercises, including swimming. ; Mio Go app paired with the device makes it easy to train using heart rate zones.

Does not have customizable alarms or receive smartphone alerts. ; Mio Go app had syncing issues in the first couple days of use. ; PAI companion app's features should just be lumped into Mio Go.

Mio has had a number of chances to make its products more like everyone else's, but it continues to go its own way. The Fuse is bulky compared to other fitness bands, but it still manages to be useful. It's certainly limited compared to similar Fitbit...

Accurate optical heart rate monitor ; Comfortable design ; Good battery life.

Doesn't track sleep ; No alarm functions ; No smartphone notifications.

This sporty wristband features a bright display and an accurate heart rate monitor, but it lacks features found on similarly priced fitness trackers.

Fully stretched the strap containing the Fuse reaches to 25.5cm; it is black rubber on the face and red rubber on the back. Download the App from the link given in the Quick Start Guide. Charge the Fuse from either a plug front or any PC USB port and...