A Vivoactive 5 that normally runs about a week on a charge started beeping its way through a full battery in under 24 hours this month. Nobody changed a setting. Nobody installed a new watch face. The watch did it to itself.
That much is now documented in detail on Garmin's own forums, in two separate threads opened within days of each other, and the timestamps line up with a single window: October 31 through November 2, 2026.
The strange part is what the watches claim to be running.
A January firmware, and an install in November
Software version 17.05 is the current build on the Vivoactive 5. Garmin locked that version in place nine months ago, and the release notes on the support site have not changed since. Anyone checking for updates by hand gets told they are current.
Yet on November 1, an owner posting as 3417630 watched their watch behave exactly as if it were installing something.
"The watch attempted to install an update," they wrote. "This appeared to download and install and restart the watch. Battery drained to below 10 percent in about 12 hours."
They went further than most people would. The thread lists a full sequence of attempted fixes: rebooting from the menu, a hard reboot with the button held down, unpairing and repairing Bluetooth, uninstalling and reinstalling Garmin Connect, confirming Pulse Ox was set to sleep only, and switching back to a stock Garmin watch face. None of it helped. The watch dropped 9 percent in the two hours and 19 minutes between 7:45 and 10:04 that morning.
A second thread, opened a day later by 3835512, lays out the same collapsing graph with hourly readings: 65 percent at 22:50 on October 31, 24 percent by 08:08 the next morning, back to 74 percent after a charge to full at 09:20, then 52 percent by 21:37. That is more than 4 percentage points an hour on a device Garmin rates at up to 11 days in smartwatch mode.
A third owner reports the watch never made it past 36 hours. Another says it fell to 4 percent inside a day, after previously getting a full working week between charges.
Garmin's answer does not settle the question
Garmin staff did respond, which matters on a thread where most reports go unanswered.
The reply from a Garmin forum account is careful. It states plainly that 17.05 was released on January 27, 2026, points out that Wi-Fi, Bluetooth and ANT+ can all cost battery life, and recommends connecting the watch to Garmin Express on a computer to check for "supplemental updates" that would not appear through the watch or Garmin Connect.
That last phrase is doing a lot of work. A supplemental update is exactly the kind of thing that could be pushed silently onto a watch without changing the published version number, which is the only explanation on the table that fits every report at once: an install attempt that happened, and a version string that never moved.
The thread's original poster tested the theory and found supporting evidence. After the drain came back, they plugged the watch into a computer and found an old file named D944502.zip sitting in the Garmin/RemoteSW folder. They removed it, reset the watch, charged it to full, and the drain stopped dead. Six percent used in 24 hours.
Whether that file is the cause or just a symptom of a stuck background process, removing it and letting Garmin Express reconcile the watch is the same fix path Garmin itself points at.
The Connect IQ angle
A few days into the thread, a second owner, pheidias55, went looking through Garmin's own support documents and found advice to uninstall Connect IQ apps.
The odd part: they had never installed any. Four apps had been installed on the watch anyway, and removing them cut the drain sharply, from about 15 percent a day and falling.
That is a meaningful detail for anyone troubleshooting this. The Vivoactive 5 can pick up Connect IQ content it never asked for, and a watch face or data field written against an older firmware build can hammer the processor hard enough to explain hours of battery life disappearing.
What nobody in either thread has is a confirmed cause. Clearing the leftover file fixed it for one owner, uninstalling four unwanted Connect IQ apps fixed it for another, and a forced restart on its own has not fixed it for anyone who reported back.
What to try if yours is doing this
- Run Garmin Express on a computer. This is Garmin's own recommendation and it is the only step that can clear a stuck or partial package. Check for supplemental updates, and let it finish before unplugging.
- Look in Garmin/RemoteSW. Connect the watch by USB and check for leftover .zip files from earlier update attempts. One owner traced the whole problem to a July package sitting in that folder.
- Audit your Connect IQ apps. Open the Connect IQ store inside Garmin Connect and check My Apps and My Watch Faces. Uninstall anything you do not recognize before doing a factory reset.
- Turn off Wi-Fi on the watch while you troubleshoot, so you are not chasing two variables at once.
- Charge to 100 percent and watch. Note the percentage at a fixed time each morning. If it holds near 1 percent an hour or better, it is fixed.
- Factory reset only as a last step. It costs you your settings, and at least one owner found it did nothing on its own without also clearing the stuck file.
If you are in the market for a cheap training watch, the Vivoactive 5 is still one of the better value picks Garmin sells, and a software problem that has a documented fix is not a reason to avoid it. The Vivoactive 6 runs newer firmware and has not shown up in these threads.
A pattern, not a one-off
Garmin has had a rough few days on the software side. Two days ago the Fenix 8 needed three separate firmware builds to get one release out the door, and yesterday Training Readiness went missing from Garmin Connect for Fenix 8, Enduro 3 and Forerunner owners.
The pattern across all three is the same: the watch does something the app or the release notes do not explain, and the only reliable record ends up being a forum thread.
Worth saying clearly, though. Each of these stories rests on owner reports, not a Garmin statement of fault. Garmin has not described the Vivoactive 5 drain as a software bug, and there is no published advisory. What we have is a dozen detailed reports, dated logs, a staff reply recommending Garmin Express, and two independent owners who say removing a specific file fixed it. That is enough to act on, and not enough to call it a confirmed defect.
The bottom line
If your Vivoactive 5 suddenly needs charging every day, you are not imagining it, and you are not alone. The watch is stuck trying to finish something it started on November 1, and the published version number is not going to tell you that.
Start with Garmin Express. It is free, it is Garmin's own advice, and it is the one step that addresses the actual failure mode rather than working around it. If that does not do it, check the RemoteSW folder and clear out your Connect IQ apps before you consider a factory reset.
The bigger worry is the quiet part. A watch installing something without a version bump, on a firmware Garmin has not touched since January, is a support story that should not be possible to piece together from forum posts alone.
Sources: Garmin Forums, vivoactive 5 Series board, thread 447385 "Vivoactive 5 attempting to install update Nov 1 26. Accelerated battery drain" opened November 2, 2026 with replies through November 8, including a Garmin forum staff reply; thread 447615 "vivoactive 5 - Severe battery drain after software update 17.05" opened November 5, 2026; Garmin's Vivoactive 5 software version page listing 17.05 as current; Gadgets & Wearables report on the same reports, November 8, 2026.
