In August 2018, the South Korean tech titan Samsung announced the Galaxy Watch and Galaxy Watch Active, the successors to the company's Gear S3 and Gear Sport smartwatches.

For wielders of Android phones, the Samsung Galaxy Watch and Samsung Galaxy Watch Active are generally deemed two of the best smartwatches on the market - and, this year, the Samsung Galaxy Watch Active2 has joined the party. So, what features are offered on the latest models?

Design

While Samsung's smartwatches have traditionally looked very smartwatch-like, the Galaxy Watch comes with a redesign making it more closely resemble a traditional timepiece, as it now includes a large circular face and a metal body. Whether or not this is a good thing is ultimately up to you.

Both 42mm and 46mm versions of the device in Rose Gold, Midnight Black and Silver are available, while the Galaxy Watch Active2 is offered at slightly smaller 40mm and 44m sizes in Black and Pink.

Display

Unsurprisingly, the larger the watch, the larger its display - hence why the 42mm Watch features a 1.2-inch display while the 46mm version measures 1.3 inches on its screen.

Though the original Galaxy Watch Active is still available with a discounted price and a 1.1-inch screen, you could feel more drawn to the Active2, not least as it is available in two display sizes. Each Active2 watch includes a digital rotating bezel which lets you speedily page through widgets.

Health and fitness

Though, like the Apple Watch Series 4 and above, the Active2 comes with a built-in electrocardiogram (ECG) sensor, you can't yet use it, as Samsung still needs to pass particular regulatory hurdles before rolling out its ECG app, which is reportedly unlikely to arrive until 2020.

The Active2, however, remains rich in functionality for avid runners, while even owners of the standard Galaxy Watch can, on their wrist, receive instructions for exercises and workouts encompassing running, walking, cycling, swimming, circuit training and many other activities.

Battery life

Critics have put the basic Galaxy Watch's battery through its paces and found that it lasts 2-3 days on the 42mm model and 4-5 days on the 46mm version, which features a 472mAh battery rather than the 270mAh battery placed into its smaller counterpart.

Meanwhile, the Active2 takes roughly two-and-a-half days to run out of battery power, though that falls to about 48 hours if you often work out and 24 hours with the always-on display active.

Apps

While Samsung's wearable-focused OS, Tizen, still noticeably trails Apple's watchOS in the support it attracts from third-party app developers, there remain some notable inclusions in Tizen's app store.

For example, on the Active2, it's possible to tweet, like and retweet on Twitter, while even YouTube clips can be watched through a dedicated app on the small screen. If you are a Premium subscriber to Spotify, you can also store music for offline listening, unlike on non-Samsung wearables.

There are also Tizen versions of MyFitnessPal, MapMyRun and Endomondo - all health and fitness apps from the sportswear brand Under Armour, which has also put its name to a recently-released special edition of the Active2 aimed more specifically at runners.