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The Forerunner 645 comes with a fully integrated heart rate monitor which is more practical than a chest or shoulder strap and has additional sensors. The Forerunner 645 allows you to see your heart rate in real time all day, every day. Your heart will give you key information and understand whether your current training is effective.
The watch uses GPS to provide highly accurate activity monitoring. The device comes with Training Status which is a new performance indicator that automatically evaluates your recent exercise history and tells you if your training is productive, peaking or overreaching. The Training Load mode will take this one step further in evaluating your exercise volume from the last 7 days.
Using Bluetooth Smart of Ant+ you can easily connect the Forerunner 645 to your smartphone or tablet device. This allows you to access the Garmin Connect mobile app which will help you keep track of your activity over days, weeks, months and years so that you can see your progress over time and really get your teeth into the detail. The app also lets you make use of Garmin’s online community of other activity track users. Once connected you can also receive your smartphone’s notifications to your watch screen including text messages, call alerts, social media notifications and more.
The Forerunner 645 comes with Garmin Pay which allows you to make card payments via the watch using contactless. This makes your running trip even easier – you no longer have to carry your phone, or wallet which streamlines your running kit making your running experience easier than ever.
Lens Material: Corning Gorilla Glass 3
Bezel Material: Stainless steel
Strap Material: Silicone
Dimensions: 42.5mm x 42.5mm x 13.5mm
Wrist Fit: 127-204mm
Display Size: 1.2’’ diameter
Display Resolution: 240 x 240 pixels
Display Type: Sunlight-visible, transflective memory-in-pixel (MIP)
Maximum Runtime: 7 days (smartwatch mode), 14 hours (GPS mode)
Water Rating: 5ATM
Memory/History: 200 hours of activity data
Charging time: 2 hours
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.