You can get one for 119€ now that it is on birthday sales in GB.
This watch has GPS, WIFI, heart monitor. It is IP67 certified and allows you to listen to music with Bluetooth headphones directly from the watch.
The manufacturer promises 35h duration of continuous use of GPS.
It is compatible with Android and iOS, and can receive alerts from some applications as well as identify who’s calling.
It can function independently from the mobile phone and synchronize the training data later.
It’s also possible to change the watch faces. However, they are limited to those available in the application.