Product Comparison
Forerunner® 45
$129.99 USD
|
Forerunner® 245 Music
$329.99 USD
|
Forerunner® 945
$499.99 USD and Up
|
Forerunner® 45
Buy Now
$129.99 USD
|
Forerunner® 245 Music
Buy Now
$329.99 USD
|
Forerunner® 945
Buy Now
$499.99 USD and Up
|
Print|
You need a basic running watch. If you want to keep it simple, this lightweight GPS smartwatch is for you. |
You like running. And you want to take it to the next level. This GPS smartwatch has basic metrics, music and then some. |
You're an up-at-dawn runner. A conditioned-for-pain triathlete. Our most advanced, lightweight GPS smartwatch is made for you. |
General
| Lens Material |
chemically strengthened glass |
Corning® Gorilla® Glass 3 |
Corning® Gorilla® Glass 3 DX |
|---|---|---|---|
| Bezel Material |
fiber-reinforced polymer |
fiber-reinforced polymer |
|
| QuickFit™ watch band compatible |
yes (22 mm compatible) |
||
| Quick Release bands | yes (20 mm, Industry standard) | ||
| Strap material |
silicone |
silicone |
silicone |
| Physical size |
42 x 42 x 11.4 mm Fits wrists with a circumference of 129-197 mm |
42.3 x 42.3 x 12.2 (mm) |
47 x 47 x 13.7 mm Fits wrists with a circumference of 130-220 mm |
| Color display | |||
| Display Size | 1.04" (26.3 mm) diameter | 1.2" (30.4 mm) diameter | 1.2" (30.4 mm) diameter |
| Display Resolution | 208 x 208 pixels | 240 x 240 pixels | 240 x 240 pixels |
| Display Type | sunlight-visible, transflective memory-in-pixel (MIP) | sunlight-visible, transflective memory-in-pixel (MIP) | sunlight-visible, transflective memory-in-pixel (MIP) |
| Weight |
Small: 32 g |
38.5 g |
50 g |
| Water rating | 5 ATM | 5 ATM | 5 ATM |
| Battery life |
Smartwatch Mode: Up to 7 days GPS mode: Up to 13 hours |
Smartwatch Mode: Up to 7 days GPS mode with music: Up to 6 hours GPS mode without music: Up to 24 hours |
Smartwatch Mode: Up to 2 weeks GPS mode with music: Up to 10 hours GPS mode without music: Up to 36 hours |
| Charging method | Garmin proprietary plug charger | Garmin proprietary plug charger | Garmin proprietary plug charger |
| Memory/History | 80 hours of activity data | 4 GB | 16 GB |
Clock Features
| Time/date | |||
|---|---|---|---|
| GPS Time Sync | |||
| Automatic daylight saving time | |||
| Alarm clock | |||
| Timer | |||
| Stopwatch | |||
| Sunrise/sunset times |
Health Monitoring
| Wrist-based heart rate (constant, every second) | |||
|---|---|---|---|
| Daily resting heart rate | |||
| Abnormal heart rate alerts | yes (high and low) | yes (high and low) | yes (high and low) |
| Respiration rate (24x7) | |||
| Pulse Ox blood oxygen saturation | yes (spot-check and optionally in sleep) | yes (spot-check, and optional all-day acclimation and in sleep) | |
| Fitness age | yes (in app) | yes (in app) | yes (in app) |
| Body Battery™ energy monitor | |||
| All-day stress | |||
| Relaxation breathing timer | |||
| Sleep | yes (advanced) | yes (advanced) | yes (advanced) |
| Sleep score and insights | |||
| Hydration | yes (in Garmin Connect™ and optional Connect IQ™ widget) | yes (in Garmin Connect™ and optional Connect IQ™ widget) | |
| Women's health | yes (in Garmin Connect™ and optional Connect IQ™ widget) | yes (in Garmin Connect™ and optional Connect IQ™ widget) |
Sensors
| GPS | |||
|---|---|---|---|
| GLONASS | |||
| Galileo | |||
| Garmin Elevate™ wrist heart rate monitor | |||
| Barometric altimeter | |||
| Compass | |||
| Gyroscope | |||
| Accelerometer | |||
| Thermometer | yes (tempe™ sensor required) | ||
| Pulse Ox Blood Oxygen Saturation Monitor |
Daily Smart Features
| Connectivity | Bluetooth®, ANT+®, Wi-Fi® | Bluetooth®, ANT+®, Wi-Fi® | |
|---|---|---|---|
| Connect IQ™ (downloadable watch faces, data fields, widgets and apps) | yes (watch faces only) | ||
| Smart Notifications | |||
| Text response/reject phone call with text (Android™ only) | |||
| Calendar | |||
| Weather | |||
| Controls smartphone music | |||
| Plays and controls watch music | |||
| Music storage | |||
| Find My Phone | |||
| Find My Watch | |||
| VIRB® Remote | |||
| Smartphone compatibility | iPhone®, Android™ | iPhone® and Android™ | iPhone®, Android™ |
| Pairs with Garmin Connect™ Mobile | |||
| Garmin Pay™ |
Safety and Tracking Features
| LiveTrack | |||
|---|---|---|---|
| Group LiveTrack | |||
| Live Event Sharing | Android™ Only | Android™ Only | Android™ Only |
| Incident Detection during select activities | yes (smartphone required) | ||
| Incident detection alert on phone for wearables | |||
| Assistance | yes (smartphone required) |
Tactical Features
| Dual grid coordinates |
|---|
Activity Tracking Features
| Step counter | |||
|---|---|---|---|
| Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it) | |||
| Auto goal (learns your activity level and assigns a daily step goal) | |||
| Calories burned | |||
| Floors climbed | |||
| Distance traveled | |||
| Intensity minutes | |||
| TrueUp™ | |||
| Move IQ™ | |||
| Garmin Connect™ Challenges app | yes (optional Connect IQ app) | yes (optional Connect IQ app) |
Gym & Fitness Equipment
| Automatic rep counting | |||
|---|---|---|---|
| Cardio workouts | |||
| Strength workouts | |||
| Yoga workouts | |||
| Pilates workouts | |||
| On-screen workout animations |
Training, Planning and Analysis Features
| HR zones | |||
|---|---|---|---|
| HR alerts | |||
| HR calories | |||
| % HR max | |||
| % HRR | |||
| Recovery time | |||
| Auto max HR | |||
| HRV stress test (measures your heart rate variability while standing still, for 3 minutes, to provide you with an estimated stress level; the scale of this is 1 to 100; low scores indicate lower stress levels) | yes (with compatible accessory) | ||
| HR broadcast (broadcasts HR data over ANT+® to paired devices) | yes (using ANT+ or BLE) | yes (using ANT+ or BLE) | |
| Respiration rate (during exercise) | yes (with compatible accessory) | ||
| GPS speed and distance | |||
| Customizable data pages | |||
| Customizable activity profiles | |||
| Auto Pause® | |||
| Interval training | |||
| Advanced workouts | |||
| Downloadable training plans | |||
| HRM running pace and distance | |||
| Auto Lap® | |||
| Manual lap | |||
| Configurable lap alerts | |||
| Heat and altitude acclimation | |||
| VO2 Max (Run) | |||
| Training status | |||
| Training load | |||
| Training load focus | |||
| Training effect | |||
| Training effect (anaerobic) | |||
| Primary benefit (Training Effect labels) | |||
| Improved recovery time | |||
| Daily suggested workouts | yes (limited) | ||
| Custom alerts | |||
| Audio prompts | |||
| Finish time | |||
| Virtual Partner | |||
| Race an Activity | |||
| Auto multisport activities | |||
| Manual multisport activities | |||
| Course guidance | |||
| Garmin Live Segments | |||
| Strava Live Segments | |||
| Round-trip course creator (running/cycling) | |||
| Trendline™ Popularity Routing | |||
| Touch and/or button lock | |||
| Hot keys | |||
| Auto scroll | |||
| Activity history on watch | |||
| Physio TrueUp |
Running Features
| Available run profiles |
Running, Treadmill Running. Indoor Track Running may be added through app |
Running, Outdoor Track Running, Treadmill Running, Indoor Track Running, Trail Running, Virtual Running |
Running, Outdoor Track Running, Treadmill Running, Indoor Track Running, Trail Running, Virtual Running |
|---|---|---|---|
| GPS-based distance, time and pace | |||
| Running dynamics | yes (with compatible accessory) | yes (with compatible accessory) | |
| Vertical oscillation and ratio | yes (with compatible accessory) | yes (with compatible accessory) | |
| Ground contact time and balance | yes (with compatible accessory) | yes (with compatible accessory) | |
| Stride length (real time) | yes (with compatible accessory) | yes (with compatible accessory) | |
| Cadence (provides real-time number of steps per minute) | |||
| Performance condition | |||
| Lactate threshold | yes (with compatible accessory) | ||
| PacePro™ Pacing Strategies | |||
| Run workouts | |||
| Trail run auto climb | |||
| Race predictor | |||
| Foot pod capable | |||
| Run/Walk/Stand detection |
Golfing Features
| Preloaded with 43,000 courses worldwide | |||
|---|---|---|---|
| Yardage to F/M/B (distance to front, middle and back of green) | |||
| Yardage to layups/doglegs | |||
| Measures shot distance (calculates exact yardage for shots from anywhere on course) | automatic | ||
| Digital scorecard | |||
| Stat tracking (strokes, putts per round, greens and fairways hit) | |||
| Garmin AutoShot™ | |||
| Auto CourseView updates | |||
| Green View with manual pin position | |||
| Hazards and course targets | |||
| TruSwing™ compatible | |||
| Round timer/odometer | |||
| Pairs with Garmin Golf app |
Outdoor Recreation
| Available outdoor recreation profiles |
Hiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC Classic Skiing, Stand Up Paddleboarding, Rowing, Kayaking |
||
|---|---|---|---|
| Point-to-point navigation | |||
| Bread crumb trail in real time | |||
| Back to start | |||
| TracBack® | |||
| UltraTrac mode | |||
| Around Me mode | |||
| Elevation profile | |||
| Distance to destination | |||
| Barometric trend indicator with Storm Alert | |||
| ClimbPro™ Ascent Planner | |||
| Vertical speed | |||
| Total ascent/descent | |||
| Future elevation plot | |||
| Preloaded topographical maps | |||
| Preloaded road and trail maps | |||
| Downloadable cartography support | |||
| GPS coordinates | |||
| Area calculation | yes (via Connect IQ™) | ||
| Hunt/fish calendar | yes (via Connect IQ™) | ||
| Projected waypoint | |||
| Sun and moon information | yes (via Connect IQ™) | ||
| XERO™ Locations |
Cycling Features
| Cycle Map (routable cycling-specific street map) | |||
|---|---|---|---|
| Available cycling profiles |
Biking. Indoor Biking may be added through app |
Biking, Indoor Biking |
Biking, Indoor Biking, Mountain Trail Biking |
| Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) | |||
| Courses | |||
| MTB Grit & Flow | |||
| Bike lap and lap maximum power (with power sensor) | |||
| Race an activity | |||
| FTP (Functional Threshold Power) | yes (with compatible accessory) | ||
| Compatible with Vector™ and Rally™ (power meters) | |||
| Power meter compatible | |||
| Advanced cycling dynamics | |||
| Compatible with Varia Vision™ (head-mounted display) | |||
| Compatible with Varia™ radar (rear-facing radar) | |||
| Compatible with Varia™ lights | |||
| Speed and cadence sensor support (w/sensor) |
Swimming Features
| Available swim profiles |
Pool Swimming |
Pool Swimming, Open Water Swimming, Swimrun |
|
|---|---|---|---|
| Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) | |||
| Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) | |||
| Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) | |||
| Drill logging (pool swim only) | |||
| Basic rest timer (up from 0) (pool swim only) | |||
| "Repeat on" rest timer (pool swim only) | |||
| Auto rest (pool swim only) | |||
| Time and distance alerts | |||
| Pacing alerts (pool swim only) | |||
| Countdown start (pool swim only) | |||
| Pool swim workouts | |||
| Critical swim speed | |||
| Underwater wrist-based heart rate | |||
| Heart rate from external HRM (real-time during rests, interval and session stats during rests, and automatic heart rate download post-swim) | yes (with HRM-Tri, HRM-Swim, HRM-Pro or HRM-Pro Plus) | yes (with HRM-Tri, HRM-Swim, HRM-Pro or HRM-Pro Plus) |
Kid Activity Tracking Features
| Toe-to-Toe™ Challenges app | yes (optional Connect IQ Toe-to-Toe™ Challenges app) | yes (optional Connect IQ Toe-to-Toe™ Challenges app) |
|---|