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

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.

Bought for my wife and she lo as it. It fits her wrist well and it is quite accurate. The size is just big enough to make the screen usable for texts and to see valuable information

Acted beyond expectation. Hardly notice that it is sitting there and doing its job. The Garmin app is good and has given me some news about me, a little fun. If you sync to their site too, there are more ways to visualize data. But, I used it around the clock.

You can find this a whole lot cheaper elseswhere!

A very easy to use device with plenty of information both from the tracker itself or the app. It detects your activity automatically without presetting. I returned my Samsung Gear Fit2 Pro. This one is a lot better than the Gear.

The thinner-and-lighter trend isn't just dominating smartphones and laptops-fitness tech companies are constantly trying to make "the next big thing" as thin and light as they possibly can.

Easy-to-wear design; Good new rep-counting feature; Auto-recording feature and on-device activity menu; New estimated VO2 max and fitness age scores

Cannot change out bands; Heart rate monitor is inconsistent at high BPMs; Sleep tracking isn't as comprehensive as that of the Alta HR; Limited on-band music controls; Garmin Connect badly needs an overhaul

The Garmin vivosmart 3 is essentially a sleeker vivosmart HR with support for strength training. Unfortunately, this new strength training feature mostly disappoints us. In theory, the VS3 is supposed to quantify your reps, sets, and rest times as well as automatically recognize exercises.

Comfortable and water resistant; Thin; sleek design; Built-in wrist heart rate monitor; Smartphone notifications + control for music and VIRB action camera; Moderate price point

Strength training feature is disappointing; Does not connect with external HRM; Display is average at best

New fitbands seem to be a dime a dozen but if a brand wants to set themselves apart from the pack they need to come with something different. With the Vivosmart 3, Garmin are attempting to do just that. Any old device can measure steps these days but how many can count reps for you

It's interesting seeing Garmin take the Vivosmart series in a slightly different direction. By shrinking the display down and making it on-demand only, it's going to appeal to a slightly different market than that of the Vivosmart HR (or even HR+).