Fitbit Charge - Activity and sleep tracking wristband
HitFit Pro - HitFit Pro is an app that allows you to connect your smartwatch to your smartphone and let them work together.
Fitbit Blaze - Fitbit Blaze is a smartwatch that includes both a heart rate monitor and a fitness activity tracker. It comes with a color touchscreen, and you can change both the watch's strap and frame. Read more about Fitbit Blaze.
Mi Heart rate - Continuous HR and smart alarm
WHOOP Strap - The world's most powerful training and recovery tool
Huawei Wear - Huawei Wear is an application that allows you to manage your Huawei smartwatch no matter what model it is, i.e., Huawei Watch, Huawei fit, and Huawei talk band wristbands.