Garmin Instinct 3 Solar
Solar-charged tank — months of battery, MIL-STD-810 toughness, brilliant always-on MIP screen.
The Garmin Instinct 3 Solar (2025) is a sport watch with a list price of $449 in our database. It is rated for about 24 days per charge, weighs 58 g with a 45 mm case and an MIP display, and includes built-in GPS, blood-oxygen (SpO₂) and swim tracking. It works with both iPhone and Android.
Specs last updated
Specifications
What it is good at
- Long battery: rated about 24 days per charge, more than 77% of the sport watches in our database.
- Water-ready: rated 10ATM, suitable for swimming and surface water sports.
- Sunlight-readable memory-in-pixel display that sips power.
Best for
Features
Who should skip it
- You want a bright, vivid AMOLED screen — this one uses a lower-power display.
Where it ranks #1 in our quiz
The Garmin Instinct 3 Solar is the top pick for these standard profiles. Each page shows the full scoring breakdown.
Frequently asked questions
How long does the Garmin Instinct 3 Solar battery last?
The manufacturer rates it at about 24 days per charge. Always-on display, constant GPS and cellular use shorten that. Among the 29 sport watches in our database it beats about 77% on rated battery life.
Does the Garmin Instinct 3 Solar work with iPhone and Android?
It works with both iPhone and Android.
Can I swim with the Garmin Instinct 3 Solar?
10ATM is suitable for swimming and surface water sports. It is not a dive rating unless the maker says so. It also has a swim-tracking mode.
How much does the Garmin Instinct 3 Solar cost?
Our database lists $449 (May 2026). That is a list price, not today's price, so check the Amazon listing before you buy.
Who should not buy the Garmin Instinct 3 Solar?
It is a poor fit if any of these apply. You want a bright, vivid AMOLED screen — this one uses a lower-power display.