I just got my GW6 and did have a chance to test today if continuous HR is not affecting battery. With this parameters:
- AOD on
- Brightness 45%
- Wifi and Bluetooth on (connected to phone)
- Wifi debugging is turned off
- SH HR interval is set to Manual
- Watch Face: BALLOZI VERO
- Physical device: GW6 Classic 47mm
- Activity: Sitting down in my workspace
The result is it did affect the battery. 3% for 1 hour and 2 minutes. 100% battery would only last 1.44 days and maybe less if the activity of the user is outdoor.
Unlike the watch face build in 1.3.13 without the continuous reading but HR interval is set to very 10 minutes with same parameter above, the result is far way better. 1% for 1 hour and 15minutes and full battery could last 5.20833333 days and maybe less depending on the activity of the user.
This continuously HR reading issue only exist in GW6. I also ran the watch face to GW4 and GW5 physical devices using WFS 1.5.7 without crazy HR readings. I hope it will be fixed soon. I believe the problem is there with GW6 firmware as @amoledwatchfaces cited in his posts.