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Deal.ai › Garmin › Sport Watches
Garmin
Garmin Instinct 3 Solar GPS Smartwatch 45 mm

Garmin Instinct 3 Solar GPS Smartwatch 45 mm

4.7(135 ratings)

Best price now

$449.99at Best BuyChecked 1 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $449.99 at Best Buy (checked Nov 15, 2026).
  • Checked at 3 stores.

Our take on the Garmin Instinct 3 Solar GPS Smartwatch 45 mm

The Garmin Instinct 3 Solar is a rugged GPS smartwatch built for outdoor training and everyday wear. Its solar lens extends battery life in sunlight, and the 45 mm fiber-reinforced polymer case with an aluminum bezel meets MIL-STD-810 hardness while staying light on the wrist. It covers the essentials — GPS, wrist heart rate, step counting, Bluetooth phone pairing — without a touchscreen or smartwatch app store, so it competes with tougher rivals on endurance rather than features. Owners rate it highly for battery life and durability; the main complaints are the dim monochrome display and limited smart features.

Best forRunners, hikers and trail users who want long battery lifeBuyers who prefer buttons over a touchscreenOutdoor workers and athletes needing a tough watchiPhone users who want notifications and GPS without charging daily
Pros
  • Solar charging stretches time between charges
  • Rugged MIL-STD-810 build with a scratch-resistant lens
  • Physical buttons work with gloves and in wet conditions
  • Accurate multi-band GPS and wrist heart rate
  • Light for its size at 45 mm
  • Works with iPhone for notifications and activity sync
Cons
  • Monochrome display is low-resolution and hard to read in some light
  • No touchscreen and few smartwatch apps
  • No onboard music storage
  • Solar gain is modest away from direct sun

Garmin Instinct 3 Solar GPS Smartwatch 45 mm prices at every store

  • Best BuyNew

    In stock

    $449.99Free shippingChecked 1 h ago
    Visit Best Buy
  • StaplesNew

    In stock

    $584.29Free shippingChecked 1 h ago
    Visit Staples
  • QuillNew

    Out of stock

    $569.99Free shippingChecked 1 h ago
    Visit Quill

Store links may earn us a commission. Some prices via Klarna.

Garmin Instinct 3 Solar GPS Smartwatch 45 mm price history

Lowest price we've seen: $449.99 on Nov 15 at Best Buy. Tracked across 3 stores since Nov 15.

What reviewers say

  • 4.7 / 5135 ratings

Owners praise the Instinct 3 Solar for going days or weeks between charges and shrugging off knocks on trails and job sites. Many call the GPS and heart rate reliable. The most common complaints are the dim monochrome screen and the lack of smart features compared with pricier watches.

What people mention
  • BatteryPraisedOwners say it runs for days to weeks per charge and solar topping-up helps on sunny days.
  • DisplayCriticisedReviewers find the monochrome screen dim and low-resolution, especially indoors.
  • BuildPraisedBuyers report it survives drops, scrapes and rough outdoor use without damage.
  • GPS accuracyPraisedUsers say route tracking and pace data hold up on trails and in tree cover.
  • Smart featuresCriticisedSome owners miss music storage and app support found on more expensive watches.

About the Garmin Instinct 3 Solar GPS Smartwatch 45 mm

The Garmin Instinct 3 Solar is a 45 mm GPS smartwatch for sport and fitness. It has a black case made of aluminum and plastic and a black silicone strap.

It uses GPS for navigation and connects over Bluetooth. It has a built-in heart rate monitor and a pedometer, and it is compatible with iPhone.

Brand
Garmin
Case size
45 mm
Case material
Aluminum, plastic
Strap material
Silicone
Watch color
Black
Strap color
Black
Navigation
GPS
Connectivity
Bluetooth
Heart rate monitor
Built-in
Features
Pedometer
Sports
Fitness
Compatibility
iPhone

Specifications

Color (Strap)
BlackSource
Navigation System
GPSSource
Wireless Communication
BluetoothSource
Watch Strap Material
SiliconeSource

Questions and answers

How does the solar charging work?
A solar lens in the display adds charge whenever it is in direct sunlight. It slows drain rather than replacing regular charging, and gain drops sharply in shade or under sleeves.
Is it worth it over the standard Instinct 3?
The Solar version adds the solar lens and longer rated battery life. Choose it if you spend long days outside; otherwise the standard model covers the same tracking.
Does it work with an iPhone?
Yes. It pairs over Bluetooth with iPhone for notifications, activity sync and settings through the Garmin app.
Can I wear it for swimming?
Yes. It is water-rated for swimming and showering, and tracks pool and open-water swims. It is not a dive computer.
Does it have music storage or contactless payments?
No. It has no onboard music and no contactless payment support, so carry your phone for music and tap-to-pay.
How does the 45 mm size fit?
The 45 mm case suits medium to larger wrists. The silicone strap is soft and adjustable, and the watch is light enough for sleep tracking.
Where is the Garmin Instinct 3 Solar GPS Smartwatch 45 mm cheapest?
At Best Buy, for $449.99, as of our latest check.
What do buyers say about the Garmin Instinct 3 Solar GPS Smartwatch 45 mm?
Rated 4.7 out of 5 from 135 ratings.
Where can I buy the Garmin Instinct 3 Solar GPS Smartwatch 45 mm?
3 stores we checked sell it, including Staples, Quill, Best Buy.

Stores we've priced the Garmin Instinct 3 Solar GPS Smartwatch 45 mm at

  • Best Buy deals and prices
  • staples.com deals and prices

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Smartphone Compatibility
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