Garmin Forerunner 645 vs Garmin Vivoactive 3

Garmin Forerunner 645 Garmin Vivoactive 3

Basic Info

Wear TypeWristbandWristband
Price$23490$13099Garmin Vivoactive 3 is 180% cheaper
Ratings

Activity & Fitness

Activity Yes YesBoth track daily activity
Calories Yes YesBoth track calories burned
Sleep Yes YesBoth can track your sleep
Heart Rate / Pulse Yes YesBoth have built in heart rate sensor
VO2 Max Yes YesBoth show how well your body uses oxygen
Distance Yes YesBoth track your stride length
Steps Yes YesBoth track how many steps you take
Pace Yes Yes
Speed Yes Yes
Stairs / Floors Yes YesBoth track elevation, climbing stairs or floors
Stress No YesGarmin Vivoactive 3 provides all-day stress level tracking
Exercise Tagging Yes YesBoth have exercise tagging feature
Smart Coach No NoBoth don't have coaching feature
Goal Setting Yes YesBoth can help with your goals setting
Inactivity Alert Yes YesBoth have move reminders

Additional Features

GPS Yes YesBoth have integrated GPS modules
Glonass Yes Yes
Compass Yes YesBoth have a compass on board
Watch / Clock Yes YesBoth have watch
Alarm Clock Yes YesBoth have alarm clock
Reminders Yes YesBoth have reminder app
Stopwatch Yes YesBoth have stopwatch
Music Playback No NoBoth don't have music playback
Weather No Yes*Weather forecast
Temperature Yes Yes
ReportsActivity, SleepActivity, Sleep

Smartphone Remote Features

Notifications Yes YesBoth show smartphone notifications
Caller ID Yes YesBoth show caller ID notification
Music Control Yes YesBoth allow control smartphone music player
Call Control Yes YesBoth allow control phone calls
Camera Control No NoBoth don't have camera control
Find Phone Yes YesBoth can help find your smartphone

Battery

Duration7 days7 daysBoth are the same battery life
Battery TypeRechargeable BatteryRechargeable Battery

Physical Specs

Weather Resistance Yes Yes
Waterproof Yes Yes
IP Rating5 ATM5 ATM
Weight42.2 grams43 gramsBoth are the same weight

User Interface

DisplayLCD ScreenLCD Screen
Display Size1,2 inches1,2 inches
Screen Resolution 240x240 pixels 240 x 240 pixels
Color Display Yes Yes
Touch Screen No Yes
Gorilla glass Yes Yes*Specialized toughened glass: thin, light and damage-resistant

Compatibility

Android Yes YesBoth compatible with Android devices
iOS Yes YesBoth compatible iOS devices
OS X/Mac Yes NoGarmin Forerunner 645 compatibles with MacBooks and iMacs
Windows Phone No NoBoth don't compatible with Windows Phone devices
Windows Yes NoGarmin Forerunner 645 allows you to locate your phone
Web Portal Yes YesBoth have access to online web portal
Social Features Yes YesBoth have social features

Connectivity

Bluetooth Yes YesBoth have Bluetooth data transfer technology
Wi-Fi Yes NoSelect Garmin Forerunner 645 if you need a built-in Wi-Fi connectivity
NFC No NoBoth don't have NFC connectivity
ANT+ Yes YesBoth provide ANT+ wireless technology
Buy on AmazonBuy on Amazon

Garmin Forerunner 645

Garmin Vivoactive 3