The Asus ZenWatch 3 was a previous top pick for a Wear OS smartwatch. As of now, it has reached the end of its Wear OS updates (after a very long delay getting to Android Wear 2.0). Its rotating crown does not actually work to turn or scroll anything on the screen. Its proprietary watch band connections mean that your options are limited to what is available from third parties on Amazon. And the watch is hard to find new.
"Sport watch" functionality often includes activity tracker features (also known as "fitness tracker") as seen in GPS watches made for training, diving, and outdoor sports. Functions may include training programs (such as intervals), lap times, speed display, GPS tracking unit, Route tracking, dive computer, heart rate monitor compatibility, Cadence sensor compatibility, and compatibility with sport transitions (as in triathlons). Other watches can cooperate with an app in a smartphone to carry out their functions. They are paired usually by Bluetooth with a smartphone. Some of these only work with a phone that runs the same mobile operating system; others use a unique watch OS, or otherwise are able to work with most smartphones. Paired, the watch may function as a remote to the phone. This allows the watch to display data such as calls, SMS messages, emails, calendar invites, and any data that may be made available by relevant phone apps. Some fitness tracker watches give users reports on the number of kilometers they walked, hours they slept, and so on.
I go for a middle-of-the-road approach—I enable alerts for most of my installed apps, save for ones that are niche (mostly shopping apps that alert me to coupons) or ones I don't use regularly. All alerts make the Charge 3 vibrate and show the message on its screen, and all past alerts live in the notification drawer that you can access by swiping down from the top of the Charge 3's display.
Battery life and charging options: Charging your smartwatch is a hassle and the biggest downside to trading in your manually-wound or button battery-powered watch. A Fitbit Versa might last 3 - 4 days between charges, but a smartwatch like the Samsung Gear Sport or Apple Watch will need recharging every couple of days and sometimes every night if you are tapping on the screen regularly and using its apps.
For most people, the most useful thing a smartwatch can do is relay phone notifications to your wrist so you can check them without having to pull out and wake up your handset. You can still be distracted by whatever is buzzing you, but it’s easier to quickly see whether something is important or not. Often you can interact with that notification—by acknowledging it, dismissing it, or replying to a message with voice dictation, a pre-written response, or (awkward) finger typing or swiping—right on the watch.
It has all the sensors you might want if you’re an avid runner, but it goes so much further. If you’re a hiker, you’ll love the altimeter, air pressure read-outs, the clock showing the sunrise and sunset times, compass and the indicator of the day’s tide levels. You can also download map data for use offline, meaning if you’re the Bear Grylls type then you’ll be well prepared.
The SmartWatch 2 is a streamlined version of Sony's first smartwatch (which went on sale in 2013) with a number of new features. The SmartWatch 2 has a thin bezel; it's almost all screen, which gives it a modern, sleek look. You choose from one of two strap designs, black plastic or black stainless steel, or you can swap those out for a leather strap in one of seven colors ($20 each). We tested the model with the plastic strap, which is light and flexible and can fit close to your wrist.

The SmartWatch 2 is a streamlined version of Sony's first smartwatch (which went on sale in 2013) with a number of new features. The SmartWatch 2 has a thin bezel; it's almost all screen, which gives it a modern, sleek look. You choose from one of two strap designs, black plastic or black stainless steel, or you can swap those out for a leather strap in one of seven colors ($20 each). We tested the model with the plastic strap, which is light and flexible and can fit close to your wrist.


If you don’t need your smartwatch to look business-casual, you want more fitness and exercise features than our top pick, or you’re a Samsung loyalist, the Samsung Gear Sport is a better pick for you. (You can use the Gear Sport with non-Samsung phones, but doing so requires that you install at least four apps.) The Gear Sport handles all the casual notification and message-triage functions of a smartwatch about as well as our top pick—with the exception of voice transcription—but it adds heart-rate monitoring, GPS tracking, swim tracking, and built-in reminders to move throughout the day. It doesn’t do all of these things perfectly, but it does just enough to make for a generally useful smartwatch, with great battery life and a clever interface.

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You can choose from five different watch faces for the Charge 3, making it less customizable than the Ionic or the Versa. Those smartwatches have the advantage of running Fitbit OS, which includes a library of many third-party-developed watch faces. The Charge 3 isn't a smartwatch, so its version of Fitbit's software isn't as robust as what we see on the Ionic and the Versa. It's not as critical for the Charge 3 since it isn't designed to run more than a few basic apps, but those looking for interesting watch faces will have to do with just a handful of options.
That same attractive stainless steel design is here. The 240 x 240 pixel display at the heart of the body is by no means the brightest or most vibrant you'll find, but crucially delivers strong visibility in most workout conditions whether you're sweating it out indoors or outside. However, there is no touchscreen or touchpad here, you'll have to resort to pressing some buttons - that could be a deal-breaker for some, but we're sure it won't be a massive one for most.
Most smartwatches are still more unisex than specifically made for women. Even though Fossil, Skagen, and Apple make very convincing unisex watches that women can actually wear, none of them are unapologetically feminine. If you, like me, have been waiting for the day when you can look at a smartwatch and say, "Oh my God! It's so cute!" your day has come.
Aside from its jack-of-all-fitness-trades, master-of-none nature, the Gear Sport has other drawbacks. Chief among them is that voice dictation is significantly less reliable than on the Apple Watch or Wear OS and is best used for short phrases and quick replies. Then there’s S Voice, the digital assistant that can’t do much—and you probably don’t have time to learn how to make it do the few things it can do. And major apps still do not have a presence in Samsung’s marketplace—the Sport runs Samsung’s Tizen operating system instead of Wear OS—so any app or device you want to control directly on your phone is a gamble on an indie developer having the same need.
Like other Fitbit devices, the Charge 3 takes little effort to set up. It works with Android and iOS devices, and all you need is the Fitbit mobile app to use it. Choose the Charge 3 from the list of devices you can pair via Bluetooth to your smartphone or tablet, and follow the on-screen instructions. After setup, you may want to also edit basic information that the Charge 3 uses when tracking activity, such as your age, height, weight, and the activity metric you care most about (steps, active minutes, etc).
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The Samsung Gear S3 was our prior pick for Samsung phone owners because of its smooth dial rotation and interface. But it was notably large, with a 46 mm face, and the Frontier model was half an inch thick, notably bulky even for a smartwatch. The Gear Sport, our runner-up pick, is less bulky, less expensive, less overtly masculine-styled, and provides most of the same features, minus the LTE option.

For instance, I rarely use the touchscreen on my Fitbit Versa because the shortcuts to my most-used smartwatch features are available via the three physical buttons on the watch. Gesture recognition is hit and miss on smartphone screens, nowhere near as responsive and accurate as on your smartphone screen, so bear that in mind too. Force Touch is a useful feature that has come to smartwatches, notably the Apple Watch. Just press down or tap the screen to activate different features.
Most smartwatches are still more unisex than specifically made for women. Even though Fossil, Skagen, and Apple make very convincing unisex watches that women can actually wear, none of them are unapologetically feminine. If you, like me, have been waiting for the day when you can look at a smartwatch and say, "Oh my God! It's so cute!" your day has come.
The Charge 3 works continuously throughout the day to track steps, distance, calories, floors climbed, and heart rate—the standard array of activity data. Fitbit has been tracking these metrics for so long, without making many significant updates as of late, that they are business as usual on the Charge 3. I appreciated that most of the watch faces available for the Charge 3 show your real-time heart rate, either in a corner or at the bottom of the rectangular display. I like being able to glance down and know my pulse.
Its only drawback is its use of Samsung’s own Tizen OS. Tizen is a custom OS that’s based on Linux. On paper it’s pretty good, letting you pair the Gear S2 with any Android smartphone, not just Samsung Galaxy phones. But it’s nowhere near as developed as Wear OS, which itself isn’t perfect. There aren’t nearly as many apps available as the Wear OS app store, but the core functionality is at least present from what is available.
The hardware is now “swimproof” with improved water resistance and there’s also now a heart rate sensor. Those work with the new Google Fit app to improve the fitness experience from your watch. Further, the Falster 2 has built-in GPS and NFC as well. This opens up Google Pay functionality for the watch for mobile payments in-store. Of course, Wear OS is still at the center of the experience, and the whole thing runs on the Qualcomm Snapdragon Wear 2100.
I’ve worn a smartwatch almost daily for nearly five years as of this writing. I often feel that it keeps me alert to what’s happening, especially for things like texts from my wife and close friends, alarms that a parking meter is nearly expired, or reminders that dinner needs to start marinating or roasting. It has also encouraged me to get moving and take a walk when I’d otherwise stay in place. Sometimes it has made me feel rude, distracted, or overly attached to whatever little blip comes next. It has come in handy on my bike, and it has distracted me when I’m driving my car. Some of this can be better handled through settings and filters, but some of it comes from human nature.
Our top pick for most people is the Apple Watch Series 4 with GPS (starting at $399), which has a huge display, ultra-fast processor, Raise to Speak Siri, fall detection and a built-in electrical heart rate sensor for taking on-the-go electrocardiograms. It also runs watchOS 5, which makes the watch even more useful with automatic workout-tracking, offline podcast playback and a Walkie-Talkie voice chat feature.
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