Does it have stopwatch function?

Dear customer, please know that this band does not support this function. Don't forget to visit the link below to know more functions about this band. https://consumer.huawei.com/us/support/wearables/band-3e/ Thank you for your interest in our products. I.G.

Dear Customer, Please know that you can share your data with Huawei Health and Google fit. You just have to open the Huawei health app > Select "Me" > Data Sharing > Select Google Fit. We kindly remind you to visit our official website for more details regarding our wonderful products. https://consumer.huawei.com/us/ Thank you for your interest in the Huawei products. I.G.

Posee medidor de frecuencia cardíaca?

Dear Customer, We're delighted to inform you about the functions available in this device. Connection and pairing, time display, daily activity monitoring, running form monitoring, running form data collection, single workout, sleep status monitoring and data collection, incoming call notification, alarm reminder, activity reminder, target achievement notification, finding a phone using the band, gesture, wearing detection, message reminder, power display, low power reminder, working mode switch, and software update. For more information regarding the this incredible band, please visit the link below. https://consumer.huawei.com/us/wearables/band3e/ Thank you for your interest in the Huawei products. I.G.

how long doe it take to charge for the 1st time

Dear Customer, Please know that the charging time at room temperature is less than 120 minutes. We kindly remind you to visit our official website for more details regarding our wonderful products. https://consumer.huawei.com/us/ Thank you for your interest in the Huawei products. I.G.