Garmin
Instinct 3 45mm Solar
Based on 160 Reddit mentions
$299.99
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Most discussed features
Sentiment summary across the product areas Reddit users mention most.
Reddit mentions
Original Reddit posts and comments behind this analysis.
Some questions about solar charging on I3 Tactical
I think you should tamper your expectations with the I3's solar capabilities. From my experience, and from what I've read here in this subreddit, solar charging is a utility used mostly to "delay" the watch from dying. But there are also so many other variables at play: How high is your brightness?
...manymoose96 in r/Garmininstinct
June 16, 2025 7:34 PM
5
Super fast battery drain within one day not wearing the watch (flight mode on)
i got myself an instinct 3 around 2 months ago.while i am happy in general with this purchase (my first watch since i am a kid, and it really helps me being consistent), i am a bit frustrated with the software side of garmin. around 3 times i had huge drops of battery power withing just a few hours.
...LifeIsACurse in r/GarminFenix
April 18, 2026 9:22 PM
2
Garmin Instinct 3 Solar (45mm) – Battery draining fast. How should I optimize it?
I’ve had similar issue. I got a new I3 solar 45mm, and it seems to burn through the battery as quickly or faster than my 2+ year old i2 (nonsolar) 45mm. I have done regular updates, but not with a computer based sync, just through the garmin software on iPhone. I’ve got the lower battery based gps s
...Puzzleheaded_Truck80 in r/Garmininstinct
February 3, 2026 10:40 PM
2
Battery dies in 24h
Hmm yeah, I checked all the links people commented and all the complaints people have made about their battery are exactly the same as mine. I saw some people fixed it by installing an earlier software so will try that. FYI: I contacted Garmin support and their only response was that they couldn't d
...bjarker69 in r/Garmininstinct
November 29, 2025 12:30 AM
2
Battery life/drain - instinct 3 solar 45mm
Many downloaded watch faces are heavy on battery. Instinct pro, is by far the heaviest on battery I have tried. There are many reviews for this watch face stating the same. I find it consumes around 8% battery a day (on my i3 solar 50mm) Whereas the built in watch faces in use around 2% to 3% a day.
...AWoodface in r/Garmininstinct
February 5, 2026 1:11 PM
1
Instinct 3 Battery without stock watch faces
Easy Round used to consume about 4–5% per day on my Instinct 2. Now, on my Instinct 3 Solar, it drains over 8% per day.You say only a small minority is affected? Reed Works and Mobile Driveway have far more data and feedback than you ever will, and they’ve heard lots of complaints about this issue.I
...Free_Tibet_Chinazi in r/Garmininstinct
October 16, 2025 11:00 AM
1