Many of these smart watches work with your smartphone rather than just outright replacing it. Others, like the Samsung Gear Sports can work just as well solo. Do you stream music? Do you use your GPS for all your little excursions? While these are tasks easily handled by most modern smartphones, if you intend to use your smart watch in a similar fashion, you’ll want to make sure you choose one that can keep up with your phone.
The build is fantastic with IP68 waterproof and Corning Gorilla Glass DX+, and the display looks great with a resolution up to 360 x 360 and Circular Super AMOLED tech. On the larger model, the battery sports a capacity of 472 mAh, which powers the snappy Exynos 9110 Dual core processor. You can choose between Silver, Midnight Black, or Rose Gold color options, and the bands are interchangeable to match your style. But most importantly, with the Tizen-Based Wearable OS 4.0 that Samsung has optimized to work with their proprietary controls and apps, this will be the perfect sidekick to your Samsung phone.
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.
Flaws but not dealbreakers: The Apple Watch requires an iPhone—if you have another kind of phone, you’re out of luck. While good Apple Watch apps are better than what you get for Android smartwatches, many are still very limited compared with their phone counterparts. And it can get annoying how aggressively the Apple Watch turns off its screen (to save energy) whenever it senses you’ve put your arm down.
The top smartwatches that debuted at the 2017 Consumer Electronics Show included the Casio WSD-F20, Misfit Wearables Vapor and the Garmin Fenix 5 series. Apple released on September 22, 2017 their Apple Watch Series 3 model which offers built in LTE cellular connectivity allowing phone calls, messaging and data without relying on a nearby smartphone connection. 
The LTE connection will cost you about $10 a month at most carriers, and the LTE model does cost more. There's a non-LTE version, too, if you're not interested in the new feature. Most people probably don't need LTE, frankly, unless you regularly go on hikes or long runs and you don't want to be weighed down with your phone. Still, it's a nice option to have.
We pulled together a list of currently available smart watches that met these criteria from Apple, Android Wear, and Samsung. Our list included watches from tech brands like Apple, Asus, and Samsung, as well as fashion labels like Fossil, Nixon, and Tag Heuer. Then, we cross-checked with respected review sites, such as Tech Radar and PCMag, as well as tech retailer Best Buy, to make sure we weren’t leaving out any hidden gems.
Battery life for the Q watches is unremarkably reliable, and that’s the best thing you can say about a touchscreen smartwatch. The Q Explorist never ran out of juice entirely while wearing it, even after having it be the primary turn-by-turn direction notifier on two 1-hour drives, followed by 30 minutes of actively tracked cycling and the usual all-day text/app notifications. While we didn’t wear the Venture for full days of testing, most reviews find no fault with the battery. The USB charger is a basic magnetic disc that slides onto the rounded back of the watch (though it could stand to stick onto the watch more strongly, like the Apple Watch’s similar disc).
We test every new smartwatch to gauge its design and comfort. If it’s not stylish and comfortable enough to get you from an early morning workout to the office to a night out, you probably won’t wear it every day. Most smartwatches are also fitness trackers, so we put all of its sensors to the test, from step counts to heart rate to GPS (when applicable).