Oukitel is now selling its BT50 rugged smartwatch globally. The cheaper model has features including Bluetooth calling, smart notifications from your phone and tracking of health metrics like your heart rate and SpO2 level. The military-style wearable is also said to last up to 15 days with typical use.https://www.notebookcheck.net/Oukitel-BT50-smartwatch-with-Bluetooth-calling-now-available.792680.0.html
Never heard of this brand, but these are the best looking smartwatches bar none. Compare this to the hideous Apple Watch dross and Fitbit crap.