garmin forerunner 645 specifications, features and price
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Garmin Forerunner 645 Specifications, Features and Price

$399.99 $235.46

  • Release date:: November, 2017
  • Display:: 1.2 inches, Transflective (MIP) LCD
  • Body:: Silicone, Fiber-reinforced polymer
  • Battery Life:: 7 days
  • Compatibility:: Android and iOS

EDITOR’S RATING

Design:4.2 out of 5 stars (4.2 / 5)
Battery:4 out of 5 stars (4.0 / 5)
Fitness tracking:4.4 out of 5 stars (4.4 / 5)
Features:3.4 out of 5 stars (3.4 / 5)
Price:3.5 out of 5 stars (3.5 / 5)
Average:3.9 out of 5 stars (3.9 / 5)

Last updated on May 19, 2020 6:20 am
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Description

Garmin Forerunner 645 Specifications and Features – The Forerunner 645 is a comprehensive fitness smartwatch with an outstanding lightweight and decent looking design, and a long battery life. It’s the cheaper version of the 645 Music with onboard music storage which the 645 lacks, as well as lacks incidental fall detection also present on the higher-end version.

The Forerunner 645 is a sturdy device with a case made of reinforced fiber-polymer, 20mm interchangeable silicone straps that are comfortable to wear all day long. While the screen is protected with Corning Gorilla glass 3, and a stainless steel bezel that leaves it with a classic appearance that’s both stylish and elegant.

Equipped with a broad range of sensors, the Forerunner 645 is able to track lots of activities, including all day stress tracking, fitness age and LiveTrack that enable you connect with other members of the Garmin Connect community. Beyond that, it tracks your sleep, heart rate, calories plus inbuilt multi satellite GPS sensors and lots of performance and planning tools for the Pros.

The Forerunner 645 is able to keep you connected to all that matters to you, so you never get to miss important updates.

Garmin Forerunner 645 Features

  • 1.2 inches transflective memory-in-pixel (MIP) display, bright and easy to read outdoors.
  • Preloaded sport modes.
  • Clock features include time/date, GPS time sync, auto daylight saving, alarm, timer and stopwatch.
  • Download watch faces, widgets, data fields and apps from the Garmin Connect IQ Store.
  • Calls reject/text response with preset texts (Android only).
  • Find my phone, watch, control music on smartphone and remote camera control.
  • Keeps you connected to all that matters to you, so you never get to miss important updates.
  • Rated 5ATM (swim-proof).
  • 20mm interchangeable straps with quick release feature.
  • Compatible with both Android and iOS devices.
  • Sync and upload data from watch to the Garmin Connect community – a thriving community of fitness enthusiasts where you can connect and share.
Garmin Forerunner 645 Activity Tracking Features
  • Activity tracking features includes, steps counter, sleep monitoring, calories, floors climbed, distance, intensity minutes, fitness age and all day stress tracking.
  • Gym and fitness equipment includes, cardio and strength workout, automatic rep counting and available gym profiles which includes strength, cardio, elliptical, rowing, stair stepping, and yoga.
  • Training, planning and analysis features includes, downloadable training plans, VO2 max, activity history on watch, GPS speed and distance, create custom activity profiles and advanced workouts.

    In addition are, training load, training status and training that let you see how productive your training has been overtime and can help you plan and train more effectively.

  • Heart rate tracking features includes, HR zones, HR alerts, HR calories, % HR max and HR broadcast data to paired device.

    Also available, are recovery time that measures how well you’ve recovered from previous training, helping you train at the best time.

  • Running features includes, GPS-based distance, time and pace, run workouts, foot pod capable, and available run profiles such as running, indoor track running and treadmill running.

    Other running features include, cadence (real-time steps/min), stride length, running dynamics, race predictor, performance condition and lactate threshold that analysis HR and pace to estimate when the muscles begin to fatigue (Track these data in combination with compatible heart rate strap or the compact Running Dynamics Pod sold separately) .

  • Outdoor recreational features includes, back to start, total decent/ascent and available outdoor recreational profiles such as skiing, snowboarding, XC skiing, stand up paddle boarding and rowing.

    Other outdoor recreational features include, point-to-point navigation, bread crumb trail in realtime, elevation profile, GPS coordinates and barometric trend indicator with storm alerts.

  • Cycling features includes, time/distance alerts, compatible with varia, speed and cadence sensor support and available cycling profiles such as biking and indoor biking with lots of available courses to choose from.
  • Swim tracking features includes,pool swim metrics, stroke type detection, basic rest timer, time/distance alerts and pool swimming as available swim profile.

    Also tracks strokes, SWOLF, calories and pace.

Pros

  • Lightweight, sturdy and stylish design.
  • Comprehensive activity tracker.
  • Swim-proof.
  • Make payment on the go with Garmin Pay.

Cons

  • Lacks microphone and loudspeaker.

Video

Garmin Forerunner 645 Review

Additional information

ABOUT DEVICE

ABOUT DEVICE

Device name

Garmin Forerunner 645

Device type

Fitness/Sport smartwatch

Gender

Unisex

Release date

November, 2017

Predecessor

Successor

Versions

Garmin Forerunner 645, Garmin Forerunner 645 Music

BODY

BODY

Dimension

42.5 x 42.5 x 13.5 mm

Weight

41.8 grams

Shape

Circular

Case material

Fiber-reinforced polymer

Strap material

Silicone

Bezel material

Stainless steel

Strap size

20 mm

Screen protection

Corning Gorilla Glass 3

Water resistance

Yes, 5ATM

Durability test

Swim-proof

Yes, recommended

Color

Black, Rose-gold, Sandstone

DISPLAY

DISPLAY

Display size

1.2 inches

Display type

LCD, Memory-in-pixel (MIP), transflective

Display resolution

240 x 240 px

Pixel density

Always on

Yes

Custom watch face

Yes

Input type

(not touchscreen), 5 Physical buttons

CONNECTIVITY

CONNECTIVITY

Bluetooth

ANT+, Bluetooth

Bluetooth calling

No

GPS

Galileo, GLONASS, GPS

NFC

Yes

Wi-Fi

Yes, Wi-Fi 802.11 b/g/n

MEMORY

MEMORY

RAM

ROM

Memory card slot

No

CELLULAR CONNECTIVITY

CELLULAR CONNECTIVITY

Technology

None

SIM type

None

Band

NOTIFICATIONS

NOTIFICATIONS

SMS alert

Yes

Calls alert

Yes

Email alert

Yes

Event reminder

Yes

Third-party apps alert

Yes

MEDIA

MEDIA

Audio

No

Bluetooth music

No

Loudspeaker

No

Microphone

No

Camera

No

Radio

No

SENSORS

SENSORS

Accelerometer

Yes

Altimeter

Yes

Ambient light

Yes

Barometer

Yes

Compass

Yes

ECG

No

Gyroscope

Yes

HRM

Yes

Pulse oximeter

No

Thermometer

Yes

Other sensors

ACTIVITY TRACKING

ACTIVITY TRACKING

Blood oxygen

No

Blood Pressure

No

Calories

Yes

Distance

Yes

ECG tracking

No

Fitness Level

Yes

Heart rate monitoring

Yes

Sleep tracking

Yes

Steps

Yes

Stress

Yes

Incidental fall detection

No

Menstrual cycle

Floors climbed

Yes

VO2 Max

Yes

Swim-tracking

Yes

Swim-heart tracking

No

On-screen workout

No

Sport modes

Yes

BATTERY

BATTERY

Battery type

non-removable Lithium-polymer

Battery capacity

Battery life

GPS mode: 14hrs, Smartwatch mode: 7 days

Charging type

Charging dock

Charging time

1-2 hours

Solar power

No

PLATFORM

PLATFORM

Chipset

CPU

GPU

Operating system

Proprietary OS

MISC

MISC

Companion app

Garmin Connect

Compatibility

Android, iOS

Payment system

Garmin Pay

Interchangeable strap

20mm, Yes

Voice command

No

Find my phone

Yes

Box content

Charger, Garmin Forerunner 645, Manual, Straps

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