Fenix 6X Battery Life

I have never heard that the calculated runtime takes battery degradation into account. It should show 21 days also if your battery actually only lasts for 2 days. But again, these 21 days are only for standard settings. If you change e.g. backlight intensity/duration or Pulse oximeter settings the calculated runtime will decrease.

Example: i currently have 17 days left. If i increase my backlight intensity from 10% to 100% it changes to 12 days immediately. If i increase the backlight duration from 8 sec to 60 sec runtime calculation further decrease to 5 days.

Nevertheless, it is the case for @quinssquirrel and me even without power-hungry settings.
And in @quinnsquirrel's case, the hard reset only helped in the short term.

Have reset my clock now. Now it shows normal values of the runtime again.
Let's see how long this condition lasts, I'm curious.

I'm using Fwnix 6 pro but I'm struggling with the same battery issues. I turn off the bluetooth connection with the phone, the beer gets better, but I still haven't been able to solve the problem. It is also unreasonable to buy such an expensive watch and turn off bluetooth. I still think the problem is software, not hardware.

That's annoying. I wonder if the new v23.00 firmware improves things?

Issue with battery still present event after factory reset and applying latest version 23.It says it will give you 14days of charge but mine runs out after only 5 days.

Without CIQ watchface and only in standby (without activities)?

How many days did you get before the update?

10 - 12 days