have you already tested the battery life with the new firmware 19 on fenix5? since in the latest firmware it was ridiculous
I use plenty of different apps from Garmin store, keep using, trying and then uninstalling watch faces,going always back to a Garmin standard analog with date, altitude, notifications.
Light in auto, only after sunset for short time and set to 20%
Biggest problem with mine compared with former fenix 3 is altitude and barometer, can't trust them as I always did with fenix 3. Live at sea level, my house officially 13 meters above, going to bed, check and if needed set it to 13 meters and wake up, some days at a completely different altitude. Storm alert, also with fenix 3, when pressure was falling rapidly use to work and now with clear skies gives me random alerts.
I use my fenix 5x sapphire edition a lot and cannot complaint at all with battery problems. I receive easily 15 to 20 notifications per hour and battery keeps going and going without major problem. Bluetooth is on and I mention before at least 14 hours a day, sometimes forget about it and stays on 24 hours.
Last time I charge my watch was on the 25th (100% at 22:00) now 88%, app shows -7.5% last day