South Korean tech giants Samsung and LG have introduced their latest models of wearable tech devices: the G Watch R and the Gear S smart watches.
The unveiling comes just days before the IFA Berlin 2014 event, one of the world's largest consumer electronics fairs.
LG introduced the G Watch R, a watch with a circular 1.3-inch display and a resolution of 320 by 320 pixels, creating a similar "look" to that of classic wristwatches.
The material out of which the screen is made, OLED plastic, allows the user to take advantage of the entire screen area, LG said on Thursday.
The G Watch R, which will go on sale in the fourth quarter in the colour black with a stainless steel frame and an interchangeable leather strap, is water-resistant up to a depth of 1 metre for as long as 30 minutes.
Equipped with Google Android Wear, the watch will advise the wearer of incoming calls and messages, will be able to record meetings, provide local weather forecasts and register the physical activity of the user and their heart rate, among other features.
Samsung's Gear S is a device with a curved 2-inch display screen that works on the Tizen operating system.
Its most noteworthy characteristic is that it has 3G connectivity such that the user can "make and receive calls directly from their wrist, or get calls forwarded from their smartphones", according to the company.
It has a rectangular "Super AMOLED" screen with a resolution of 360 by 480 pixels, and its touch keyboard will allow the user to answer messages directly "from the wrist".
The Gear S is also outfitted with GPS, an accelerometer, gyroscope, compass, barometer and a heart-rate sensor.
Also water-resistant, the Gear S will go on sale in early October.
Neither of the companies has announced the selling price of their devices.
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