If you're a data nerd or an athlete with a casual interest in stats, the Vivosmart 3 is a solid choice. For $140, you get comprehensive metrics, lots of notification options, and good battery life. The downsides are a cloudy display, a lack of interchangeable bands, and a clunky interface.

Comprehensive fitness tracking, including heart rate; Good battery life; Safe for swimming; Comfortable

Cloudy screen; Hard to read in direct sunlight; Finicky interface; No GPS; No interchangeable bands

Garmin's Vivosmart 3 activity tracker may not have HR in its naming scheme like its predecessors -- the Vivosmart HR and GPS-enabled Vivosmart HR+ -- but it does include a heart-monitor with 24-7 monitoring and adds new, smarter features while returning to the slimmer design and hidden display of...

The Garmin Vivosmart 3 is slim, very comfortable to wear, has a built-in heart-rate monitor and is fully waterproof; It's loaded with extra features, including stress-level measurements, VO2 Max readings, and a rep counter; It shows notifications from your phone

Some of the features are a little difficult to access on the watch; the display isn't as sharp as some competing models' displays

I've had this for about 2 weeks. At first the battery life was fine, not anywhere near the advertised 5 days but it was ok. I went into the settings and shut everything that drains the battery off, dimmed the screen, shut off phone notifications, shut off auto track feature and heart rate monitor.

I bought this watch a week ago as part of my get fit initiative and it's great. It has some really good features like sleep analysis, stress management as well as step counter and heart rate measurement. The fact it's waterproof is also a real bonus as means I can wear it in the pool.

Garmin has taken an inconspicuous approach to the Vivosmart 3 with a slim, seamless design. This does mean that any form of customisation goes out the window. Unlike the Fitbit Charge 2, the bands here aren't detachable, meaning you're stuck with whatever colour choice you opt for.

Discreet and comfortable design; Good battery life; Touch interface is easy to use; Water-resistant

Garmin Connect app is still messy; Can't respond to notifications; Rep counting feels tacked on

The Garmin Vivosmart 3 might not look like much but it's packed full of fitness tracking features, from rep counts to a fitness age. It's good value too, but more aimed at gym-goers than runners.

Rep counting; Auto activity tracking; Smart notifications

No GPS; Hit and miss wake movement sensing; Plain design

Bought this for my teen daughter. She absolutely loves it! The fact that it's waterproof was why we got this one. I love it because it helps her stay active.

Garmin is turning its attentions back to the fitness tracker with the Garmin Vivosmart 3, with wellness at its heart. It's slightly less focussed on sport than the GPS-toting Garmin Vivosport , with stress tracking, guided breathing exercises and sleep monitoring joining exercise detection, rep...

Lots of features on offer; including VO2 Max; Supports some strength activities; Good price

No GPS; Display can be unresponsive sometimes; Heart rate not the best at high intensity

WHEN I READ THE DESCRIPTION OF THIS TRACKER IT TICKED ALL MY BOXES AND WHEN IT ARRIVED I WAS THRILLED WITH IT AS IT WAS JUST AS I HOPED FOR AND SOME - IT LOOKS GOOD - IT FEELS GOOD AND IS COMFY TO WEAR AND I SOON GOT USE TO ITS COMMANDS AND FUNCTIONS AND I AM QUITE AMAZED AT HOW MUCH INFORMATION IT...

Works well. We use it for tracking heart rate and sleep, not for 'standard' activity-type tracking. Effectively we are using it for medical monitoring, although the instructions have lots of legal jargon saying you can't do that. The battery lasts a number of days between charges, which is good.