ZTE has launched the Watch Live in its native China. This new wearable is of the Apple Watch-clone variety, although it sells for much less than its clear inspiration. Its maker claims that it packs 24-hour heart-rate tracking, blood-oxygen sensing, sleep-tracking and up to 21 hours of battery life in its square casing.
https://www.notebookcheck.net/ZTE-announces-a-new-smartwatch-with-a-blood-oxygen-sensor-and-IP68-for-US-35.506647.0.html