The wearables OEM Mobvoi is slated to launch a watch with cutting-edge Qualcomm Snapdragon silicon for that form-factor soon. However, its latest release definitely doesn't fit this bill. Nevertheless, the TicWatch GTX packs sleep-tracking, heart-rate monitoring and 14 workout modes into a device with a normal price of US$60.
https://www.notebookcheck.net/The-latest-TicWatch-offers-essential-smartwatch-features-at-a-more-affordable-price.488969.0.html