Amazfit GTR 3 Pro shows off a new OS, 12 days of battery life

The Amazfit GTR 3 Pro, seen here in its box, is one of three new Amazfit watches revealed Monday. The GTR 3 Pro is the highest-end of the three, alongside a GTR 3 and GTS 3.

The GTR 3 comes in the box with a sticker over its 1.45-inch AMOLED display. Amazfit says the screen has 331 pixels per inch.

The watch includes a magnetic charger, which you may only need to use a few times a month. Amazfit says the GTR 3 Pro's battery can run for 12 days.

The watch's two buttons on the right can rotate, allowing you to scroll through menus. Or you can use the touch screen.

The Amazfit GTR 3 Pro runs on the watch brand's Zepp OS, which allows for it to be set up with an iOS or an Android device.

Various settings, apps and notifications are accessible with a swipe up, down, left and right from the watchface. Scrolling to the left reveals the Amazon Alexa voice assistant and access to events, alarm clocks, stress levels and temperature.

A swipe to the right brings up the fitness tracking side of the watch.

A swipe up shows off a variety of settings toggles.

And within each of these areas you can scroll down, in the case of the fitness settings you can get more data on your calories, steps and other health data.

The non-Pro GTR 3 starts at $180 (roughly £130, AU$240). The company's GTS 3, which will also cost $180, will be available in Europe on Oct. 11 and will get a US release at a later date. The Amazfit GTR 3 Pro costs $230 will and be available starting Oct. 11 in the US and Europe.