Garmin Forerunner 645 vs Samsung Gear S3 Frontier

Garmin Forerunner 645 Samsung Gear S3 Frontier

Basic Info

Wear TypeWristbandWristband
Price$23490$27995Garmin Forerunner 645 is 120% cheaper

Activity & Fitness

Activity Yes YesBoth track daily activity
Calories Yes YesBoth track calories burned
Sleep Yes YesBoth track sleep pattern
Heart Rate / Pulse Yes YesBoth have heart rate tracking
VO2 Max Yes NoGarmin Forerunner 645 tracks the maximum consumption of oxygen per minute
Distance Yes YesBoth track your running/walking distance
Steps Yes YesBoth track and count your steps
Pace Yes No
Speed Yes No
Stairs / Floors Yes YesBoth track elevation, climbing stairs or floors
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
Navigation No YesSamsung Gear S3 Frontier has onboard GPS navigation
Compass Yes NoGarmin Forerunner 645 has a compass
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 YesOnly Samsung Gear S3 Frontier offers phone-free music
Weather No Yes*Weather forecast
Temperature Yes No
Voice commands No 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 YesSamsung Gear S3 Frontier has a smartphone's remote control function
Find Phone Yes YesBoth can help find your smartphone


Duration7 days3 daysGarmin Forerunner 645 battery life is about 2.3 times longer
Battery TypeRechargeable BatteryRechargeable Battery
Wireless Charging No Yes

Physical Specs

Weather Resistance Yes Yes
Waterproof Yes No
IP Rating5 ATMIP68
Weight42.2 grams63 gramsGarmin Forerunner 645 is 20.8 g lighter

User Interface

DisplayLCD ScreenAMOLED
Display Size1,2 inches1,3 inches
Screen Resolution 240x240 pixels 360 × 360 pixels
Color Display Yes Yes
Touch Screen No Yes
Gorilla glass Yes Yes*Specialized toughened glass: thin, light and damage-resistant


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 NoGarmin Forerunner 645 allows you upload and view data on the online portal
Social Features Yes NoYou can integrate Garmin Forerunner 645 with social networks and share information


Bluetooth Yes YesBoth have Bluetooth data transfer technology
Wi-Fi Yes YesBoth have built-in Wi-Fi wireless connection
NFC No YesOnly Samsung Gear S3 Frontier has NFC (Near Field Communication)
ANT+ Yes NoOnly Garmin Forerunner 645 has ANT+ wireless technology
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Garmin Forerunner 645

Samsung Gear S3 Frontier