Battery consumption Fenix 5X Plus

There are numerous posts/topics about battery consumption for different Garmin devices. I’m posting this in the 5X+ forum, since I own a 5X+ but there really should have been a forum section for cross-device topics like OHR, navigation, battery, GPS accuracy, etc. That would be beneficial for the users.

I’ve owned my 5X+ since June 29th, and in the “interest of science” and for the benefit of my fellow Garmin owners I have recorded the battery usage in a Google sheet. This has simply been done by noting the charge state reported by the watch at the change from watch mode to activity mode and back again and the corresponding date/time. These figures can also be found in the FIT file for the activities. Additional interesting data I record in the sheet is Activity type, FW/GPS version, Recording mode, FIT file size, GPS mode, and GC/GCM version.

After having owned and used the 5X+ for more than three months I do have some data to play with……

My preferred watch setup/usage is as follows:
  • Always connected to my phone (Android)
  • 20 % backlight, 4 sec time-out and gesture/push-button/notification enabled.
  • Notification on for mail, messages and some other phone apps
  • WIFI enabled for my home network
  • 24/7 OHR and Activity tracking enabled.
  • Move IQ and movement notification disabled
  • Widgets: Notification, Calendar, Weather, Steps, Last sport, ABC, Performance Status, HR, Daily Stress, and Intensity minutes.
  • Send HR during activity enabled

My main activity is cycling, with the occasional run, walk, hike and trail run.

The watch is as default set to Smart recording, but since I have a power meter on my bikes and the Running power data field installed for running, most activities are forced to 1 sec recording.


So to the results of all this……

My average consumption since June 29th, with my setup and usage, is 0,49% pr. hour, which gives me a possible 8,5 days between charges. In pure watch mode I get 0,32 % pr. hour corresponding to 13 days, and in pure activity mode the average consumption is 4,66% pr. hour corresponding to 21,5 hours. A fair bit up to the figures stated in the manual, 20 days/33 hours, but these are “up to” figures with a minimal set of features enabled. I definitely didn’t spend NoK 8000,- to disable all the features I paid for. I’m happy with what I get with my setup.

An interesting topic however is: What is drawing the most power?

Backlight is obvious and well documented. Keep it as low as possible, with a short time-out. Other candidates are Screen drawing, data collection and processing, navigation, writing data to file(s) and communicating to phone. TbT navigation with map displayed is heavy on the juice in my experience.

I have similar data for my Edge 520, and 1 sec recording draws approximately 2% more battery pr. hour than Smart recording (FIT files are three times the size). I don’t have similar data for the 5X+, but will try to get some data next week. (If I can sustain one week without power data….). Similarly I have disabled all widgets to see if that has any influence on the watch-mode consumption. After all some of the widgets are continuously updated.

My spreadsheet may be viewed, using this link
I will update it continously as new data becomes avaiable



Stig
  • Being an engineer, that lives by statistics, I really appreciate your post, based on lots of data collection. For people who don't like math your average daily % is 11.8% (activity plus just watch mode) and your average daily watch mode is 7.7% (just watch) and activity with GPS is 112% (won't quite make it through a 24 hour period.)

    I've been tracking mine and it has stabilized after updates to the firmware and the watch faces I use (Gearmin & TimeFlies.) I'm now running about 9% a day (pure watch) and 12-14% (watch plus activities.) My activities vary from indoor without GPS to outdoor bike rides and hikes.

    I have my backlight set to only come on with a button press and notifications...all notifications on (but the brightness and time are whatever the default is.) I have pulseOx set to track...whatever the default is (hourly I recall) and I have auto activity set to on. I have a bunch of widgets set that aren't disabled (will probably be removing some I find I rarely use.)

    By far, I find the highest drain is any activity that turns on the GPS (like outdoor biking.) There is a bug, mentioned in a few threads here, that keeps the battery drain high for a considerable time after a GPS activity is complete. I've found I can greatly reduce my daily drain by rebooting the watch right after a GPS activity to squash that extra drain.

    I'm pretty satisfied with the battery life now (low hanging fruit has been addressed) so I haven't gotten into the nitty gritty of each setting to try to squeeze out a few more minutes of battery life.
  • Former Member
    0 Former Member over 6 years ago

    Great data, thanks for this. Are you calculating this or are you using an app/widget to help?
  • I'm only entereing the values from the built-in battery gauge with corresponding data/time into the spreadsheet, and the formulas in the sheet does the rest.
    Apps/Widgets are power consumers by themselves, so I try to avoid installing them unless it is something I "must" have.

    Stig
  • You don't mention audio streaming so I guess you don't use that ?
  • MiniEggS : Not very much, so I don't have significant data for that.

    Stig
  • I've noticed music, whether played during a GPS or non-GPS activity is a pretty big battery hit. PulseOX automatic is as well. I usually have it turned off, but I'm going to be at altitude next week, so I want to see how it reacts.
  • My experience is that enabeling PulseOX at least doubles the power consumption in watch mode.

    Stig.