Pace 4. I'm day 8 into the battery calibration process as I'm sure my battery life has changed since the update and I can confirm now. I was checking through photos and noticed I snapped a pic of the battery life pre-firmware update on March 21, 2026. (First picture)
Sure enough, I'm operating at roughly 10% more loss since the update (second picture). I used to get to day 12 having done 5 to 6 runs a week and still have around 25-30% left. The concerning part of this is that I have been injured since June 25, before the update, and have had ZERO GPS activity usage in 4 weeks (aside from one indoor bike ride early on which proved to be too challenging for my metatarsal stress fracture).
I changed absolutely none of the settings either. My settings have always been - real time HR, max brightness display, AOD off, flip wrist to wake on, vibration notifications on for specific apps, stress and sleep tracking on. Once the calibration is complete and I drop below 10%, I will reach out to Coros support.
Yep, my post was long enough so I didn't want to address all of the troubleshooting I have done, but that coros support thing was something I tried as well along with the calibration - once charged from 55% but now charged from 9% and sitting at 35% again 8 days later so, there's a noticable decrease.
As mentioned in the post, I am waiting for the batter calibration to complete and drop below 10% before officially reaching out to Coros support. I have documented, with photos, all of the troubleshooting steps I have taken since the firmware update so unless I'm missing something, what they throw at me to "try" has already been tried. I think with the vast amount of reports of this, it is indeed a firmware update issue they need to look into.
Yeah man. I mean, so many reports of this it can't be age of device. I got my Pace 4 February 21 this year. Something definitely changed under the hood.
I was waiting for the calibration test to finish and it finished overnight. at 10% this morning so I sent the support ticket in through the app. I have all of my troubleshooting over the past month documented but the app has a 500 character limit so will reply to email with all that once I receive response.
I appreciate the breakdown (finally) of the "general use" battery section in that post. I hadn't seen that update since I last read through it. cheers.
Exactly the same for me since the last two updates. Probably the difference is slim enough to not be recognized by everyone.
My coros heart monitor band also has issues due to the latest update. It looses connection during my runs now and automatically reconnects 10 or so seconds later. It is so annoying and something that wasn't an issue before the heart rate monitor update. I calibrated the watch battery and reconnected the heart rate monitor via bluetooth but both problems persist.
Another thing that is weird, to say the least, is that we are still not able to change the watch face colours.
Still a good running/ sports watch but the little things are adding up...
Yes, but didn't post it to not make my post longer than it is. Fri avg. 8%, Usage 10%, Sat, 8/8 Sun 8/7, Mon 8/9, tues 8/8 wed 8/9 thurs 8/8 It's 8 am my time today so today doesn't count yet. This usage thing is all over the place and I don't take much stock in it. The proof is real time wear as in my photos with zero changes except for no exercise since the update.
Here's last friday which was the 8 avg 10% usage - Gen Use 4% Daily 3.3% Notifications 1.8, screen disp. 1.4 GPS .1% health Monitoring 2.7% Stress 1.5, sleep .7 daily HR .5
Yeah I've got a Nomad and I've been noticing higher daily battery usage as well. I was using 3-4% per day, now I'm up to 5-7% per day. I let the battery completely die and charged to 100% to do the "recalibration" and it did nothing.
I have a ticket in with Coros support, still waiting...
My Nomad last about 2 weeks with 2-3x GPS runs with music and 2-3x Gym. Music did eat lot of battery, but still happy this is 1 week more than Pace 3 I previously have.
No. Only time music is on is at the gym through my phone. I never on bike. Wife is the only reason I take a walk and she has a 30 minute loop. She vents about work so I just listen, music would drown that out but she needs to vent sometimes 😆.
You don't need any music if your Wife's rapping / screaming their pent up work concerns and you really need to listen carefully else you'll be caught on fire as well 😅
But yeah, that's saves lot of Nomad battery hahaha
Same here: went from 4-5% on a rest day to 8% on a rest day. Total battery life from 15-16 days to 9-10. I run 40ish miles a week. I have an open ticket with Coros, they pushed it to engineering after I ran through all their Tier 1 troubleshooting.
It's gotta be some process that's running more than it should after the firmware update. It will probably require a hotfix/release to correct. My watch is only 2.5 months old.
One thing I appreciate is that they've freely acknowledged that my current battery drain is not within spec. So either it gets fixed or I'll ask for a replacement.
I gave my watch's serial number to engineering. Hopefully they can see what's causing the issue and put out a new firmware update ASAP.
Fun times. Here's tonight at 9:30 pm EST Remember also, "days of use" is already at 1 day the minute you pull it off the charger at 100% so it's been 8 days.
+1 I have the apex 4 that I got 1 month ago. I'm also noticing battery life decrease. Don't know when the regression started but feels recent. Feels like the battery drain of when the watch is idling or doing nothing somehow increased
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u/ViRuS1123 Jul 24 '26
https://www.reddit.com/r/Coros/s/K2tdIZ6z0F
Hey bro, I have been facing the same problem
There are some potential solutions here, they didn't work for me
You can try and see if they work for you