The first thing you'll have to decide, If you're interested in the Samsung Galaxy Watch, is what size to get.

The Samsung Galaxy Watch is a great looking smartwatch that beats the Apple Watch on battery life and its wide variety of custom watch faces.

Samsung's Galaxy Watch has an arguably superior design to Apple's Watch Series 4; Battery life is good, it's fully waterproof and you can get hundreds of watch faces for it; Samsung has improved its software and enhanced its fitness tracking; Spotify premium users can load Spotify playlists on the watch; And it works with iPhones and Android phones.

The Bixby voice-assistant could be better; Samsung has quashed some bugs but not all; To achieve Samsung's battery life numbers, you have to institute battery-saving measures.

The Samsung Galaxy Watch is a refined vision of the company’s Gear S2 smartwatch from 2015 – and it’s the best wearable the company has yet made. We prefer the smaller 42mm model for its size and weight, though if you’re into the chunky look, the 46mm model will give you better battery life. But it’s still only at its best when paired with a Samsung phone – using it with any other brand of phone loses the message and email apps. iOS connectivity is a little flaky, but it's good to have the option to use with an iPhone.

The Samsung Galaxy Watch continues the tradition set by its predecessors: it's a well-made, easy to use, durable and attractive smartwatch. Tizen has its lures, but is app limited, however, which is the watch's main shortcoming.

Attractive design; Solid stainless steel case; Rotating bezel is brilliant; Tizen OS's user interface is user friendly; Great battery life;

Tizen OS lacking in apps; Software looks/feels the same as it has for some time; Notifications load slowly; 42mm limited battery;

The Samsung Galaxy Watch wants to fix what's always been a sticking point for smartwatches: battery life. Promising five days of power, the Tizen-based Galaxy Watch also offers fitness and sleep tracking, heart rate monitoring, and intelligent notifications with Bixby integration. It's expensive at $329.99, and adding LTE connectivity only drives the price up higher. And while it offers activity tracking, its results aren't on par with dedicated fitness trackers or even hybrid models like the Fitbit Versa. Still, it's one of the better alternatives out there to the Apple Watch. Sharp Looks on a Round Face The Galaxy Watch ($189.00 at Walmart) isn't that different from the Gear S3 in terms of physical appearance. Available in 42mm and 46mm sizes, it looks stylish on the wrist, with a more professional look than the sporty design you get with many fitness-oriented wearables, including the Gear Sport. Both sizes have a circular rotating bezel around a crisp 1.2- or 1.3-inch (42mm or...

The attractive Samsung Galaxy Watch has better battery life and is easier to use than most smartwatches, but its fitness tracking features aren't up to par.

Lasts up to five days on a single charge; Crisp AMOLED screen; Rotating bezel; Accurate heart rate monitor; Resistant to dust and water

Expensive; 46mm version is chunky; Fitness tracking accuracy not up to par in testing

The Galaxy Watch is Samsung's most refined smartwatch due to its helpful fitness tracking and four-day battery life – if you opt for the larger 46mm size that we liked and recommend. All of this is packaged inside a sophisticated-looking circular silver-and-black smartwatch that has a rotating bezel for effortless menu navigation. Be warned, third-party apps are lacking and its iOS support is limited if you're using an iPhone. This is best for Samsung fans.

Impressive four-day battery life; Great core smartwatch software; Rotating bezel cycles through UI;

Proprietary wireless charger; Bixby proven to be terrible again; No Google Maps, WhatsApp, FB Messenger

Great design and bright screen; Rotating bezel is lovely; Slick Tizen OS; Good for loads of different sports tracking;

Works best with a Samsung phone; Bixby could be better; Needs more app support; 46mm might be big for some people;