Skip to main content
  1. Home
  2. Wearables
  3. Deals

Stay active with this Garmin Forerunner 645 smartwatch for 21% off on Amazon

Add as a preferred source on Google
Image used with permission by copyright holder

Smartwatches nowadays are already equipped with lots of health-centric features normally found in fitness trackers that the two wearables have become indistinguishable from one another. One such smartwatch is the Garmin Forerunner 645. This well-rounded smartwatch allows you to leave your phone in your bag while you sweat it out.

Right now, the standard version of the Forerunner 645 is available on Amazon for a sweet $85 discount. Sport this lightweight yet powerful watch for $315 instead of $400 . And if you order via the Amazon Rewards Visa, you can get an additional $50 off upon approval, cutting the price further to $265.

Buy Now

Since the Garmin Forerunner 645 is designed primarily for runners, it has a rugged and sporty appearance. Even if you won’t necessarily wear it with a suit, it looks classy enough to wear on a daily basis. Plus, you can replace its silicone band with something dressier like a leather strap. Its stainless-steel bezel surrounds a chemically strengthened glass crystal watch face. This watch is not a touchscreen though, unlike the Apple Watch or Garmin’s very own Fenix 5X. Instead, you’ll find five physical buttons around it. Going through the watch’s interface is quite easy, and there are a few handy secondary button shortcuts for quicker navigation.

The Forerunner 645 is packed with sensors. It comes with a built-in GPS, GLONASS, compass, gyroscope, accelerometer, thermometer, barometric altimeter, and a heart-rate monitor. Basically, there’s not much that this watch can’t do. Well, it doesn’t have onboard music storage. For that, you need to spend a few extra bucks for the Forerunner 645 Music version.

This watch is a runner’s dream and something marathoners should seriously consider buying. While cycling or running, the watch knows exactly when you stop and will automatically pause the GPS, so it won’t mess up your metrics. Aside from the usual speed and distance, you also get numbers on stride length, cadence, vertical ratio, ground contact time, and balance. All this data can be overwhelming but thankfully the Garmin Connect app presents all the information clearly, so you’ll be able to make perfect sense out of it. The watch will also inform you if you’re working out not nearly enough, too much, or just right. At the end of each exercise, it will spit out readings and suggestions to keep you more invested in your fitness journey.

In terms of smart features, the Forerunner 645 allows you to read and respond to text messages and notifies you of social media updates and emails. Everything is easy to read even with direct sunlight thanks to its Chroma Display. You can also customize the watch face, widgets, and featured apps to your liking. Lastly, this watch can last for up to seven days in smartwatch mode and 12 hours in GPS mode.

The Garmin Forerunner 645 is handsomely designed, loaded with features and boasts a week-long battery life. It may not offer onboard music storage, but honestly, that’s the only drawback to this otherwise solid sports wearable.

Timothy Taylor
Former Digital Trends Contributor
Timothy is a deals writer for Digital Trends that specializes in finding the best discounts on smartphones, wireless…
It seems watchOS 27 will only polish your Apple Watch experience, but no new tricks
watchOS 27 could bring refinements instead of major Apple Watch changes
Apple Watch

The Apple Watch helped define the modern smartwatch industry when it launched in 2015. It transformed wearables from niche gadgets into mainstream consumer products, generated billions in revenue for Apple, and eventually became a gateway into the company’s broader health and wearables ecosystem. But more than a decade later, Apple now appears to be entering a far more uncertain phase in the category it once dominated.

According to Mark Gurman's PowerOn Bloomberg newsletter, watchOS 27 is expected to focus largely on stability improvements, performance refinements, and smaller upgrades rather than major new features. While Apple is reportedly improving heart-rate tracking behind the scenes, the update may lack the kind of headline innovations that once defined the Apple Watch platform.

Read more
iOS 27 could make it far easier to manage your AirPods
close view of third generation AirPods Pro.

For years, AirPods Pro users have been asking Apple for something surprisingly basic: a proper place to manage their earbuds — not buried menus or scattered toggles hidden deep in Bluetooth settings. Just a clean, dedicated experience that makes controlling AirPods feel as polished as the hardware itself. Now, according to Mark Gurman of Bloomberg, Apple is finally preparing a major overhaul of the AirPods settings interface in iOS 27, iPadOS 27, and macOS 27.

AirPods have evolved far beyond simple wireless earbuds. Features like head gesture recognition, adaptive audio, hearing aid functionality, and advanced noise controls have made them increasingly complex devices. But the software experience managing those features still feels unfinished compared to products like the Apple Watch or Apple Vision Pro.

Read more
Wireless earbuds may soon identify you by your heartbeat
Earbuds

Biometric authentication is no longer limited to fingerprints and face unlock. Researchers are now exploring whether your earbuds can recognize you simply by listening to the tiny vibrations created by your heartbeat.

A new study published on the arXiv preprint server introduces “AccLock,” a passive authentication system that uses standard earphone hardware to verify a user’s identity. Instead of relying on microphones or voice prompts, the system works through built-in accelerometers already found in many modern earbuds.

Read more