Garmin just unveiled a new series of $700 smartwatches for serious athletes — here's what they can do (GRMN)

Garmin Fenix 5 Plus

Garmin's line of high-end smartwatches just got a major upgrade.

On Monday, Garmin unveiled its series of Fenix 5 Plus smartwatches. The three watches — the Fenix 5S Plus, the Fenix 5 Plus, and the Fenix 5X Plus — are upgrades to Garmin's Fenix 5 line, which it launched last year.

The new watches start at $700 and have new features like on-watch music storage, advanced GPS mapping, and contactless payments.

Garmin also added a pulse oximeter to the Fenix 5X Plus, which means the watch can track your blood oxygen levels while you're working out in high altitudes.

Here's everything you need to know about Garmin's new Fenix 5 Plus smartwatches.

Here's Garmin's Fenix 5 Plus series: the Fenix 5S Plus, the Fenix 5X Plus, and the Fenix 5 Plus.

While each Fenix 5 Plus watch has unique features, there are a few standard features for all three watches:

The watches have built-in topographical maps, and a routing feature to help find popular trails that other Garmin users have tried
The watches have satellite reception, which helps track you in environments like canyons or places with heavy tree cover
Garmin offers advanced fitness tracking on all three watches. You're able to track your exercise history and find out if you're over-training or need to make adjustments to your form
All three watches have a heart-rate tracker
You'll be able to store up to 500 songs on your watch so you can leave your phone at home while exercising
The watches will also have Garmin Pay, Gamin's version of contactless payments
You'll be able to get calls, texts, and email notifications on all three watches.