Product Comparison

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fēnix® 5S Plus
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Forerunner® 945
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Smaller-sized multisport GPS watches with wrist-based heart rate, Pulse Ox, pace guidance, routable maps, music and more

Premium multisport GPS watches with wrist-based heart rate, Pulse Ox, pace guidance, routable maps, music and more

Smaller-sized multisport GPS smartwatch with wrist-based heart rate, maps, music and Garmin Pay™ contactless payments

Premium GPS running/triathlon smartwatch with music

General

Lens Material

Corning® Gorilla® Glass DX or Sapphire Crystal

Corning® Gorilla® Glass DX or Sapphire Crystal

domed chemically strengthened glass or sapphire crystal

Corning® Gorilla® Glass DX

Bezel Material

stainless steel or Diamond-like Carbon (DLC) coated steel

stainless steel, titanium or Diamond-like Carbon (DLC) coated steel

stainless steel

fiber-reinforced polymer

Case material fiber-reinforced polymer with metal rear cover Fiber-reinforced polymer with metal rear cover fiber-reinforced polymer with metal rear cover
QuickFit™ watch band compatible

included (20 mm)

included (22 mm)

included (20 mm)

yes (22 mm)

Strap material

silicone, suede or nylon

silicone, leather, titanium or nylon

silicone, suede or steel

silicone

Physical size

42 x 42 x 13.8 mm

Fits wrists with the following circumference:
Silicone band: 108-182 mm
Suede band: 108-175 mm
Fabric band: 108-189 mm
Metal band: 108-180 mm

47 x 47 x 14.7 mm

Fits wrists with the following circumference:
Silicone band: 125-208 mm
Leather band: 132-210 mm
Fabric band: 132-210 mm
Metal band: 132-215 mm

42 x 42 x 15.4 mm

Fits wrists with the following circumference:
Silicone band: 145-217 mm
Suede band: 153-208 mm
Metal band: 153-213 mm

47 x 47 x 13.7 mm

Fits wrists with a circumference of 130-220 mm

Color display
Display size 1.2” (30.4 mm) diameter 1.3” (33.02 mm) diameter 1.2” (30.4 mm) diameter 1.2" (30.4 mm) diameter
Display resolution 240 x 240 pixels 260 x 260 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) sunlight-visible, transflective memory-in-pixel (MIP)
Weight

Steel: 61 g - case with silicone band (case only: 44 g)

Steel: 83 g - case with silicone band (case only: 60 g)
Titanium: 72 g - case with silicone band (case only: 49 g)

65 g

50 g

Battery life

Smartwatch: Up to 9 days
Battery Saver Watch Mode: 34 days
GPS: Up to 25 hours 
GPS + Music: Up to 6 hours 
Max Battery GPS Mode: Up to 50 hours
Expedition GPS Activity: Up to 20 days

Smartwatch: Up to 14 days
Battery Saver Watch Mode: Up to 48 days
GPS: Up to 36 hours
GPS + Music: Up to 10 hours
Max Battery GPS Mode: Up to 72 hours
Expedition GPS Activity: Up to 28 days

Smartwatch: Up to 7 days
GPS: Up to 11 hours
GPS and Music: Up to 4.5 hours
UltraTrac™ mode: Up to 25 hours
Smartwatch Mode: Up to 2 weeks
GPS mode with music: Up to 10 hours
GPS mode without music: Up to 36 hours
Water rating 10 ATM 10 ATM 10 ATM 5 ATM
Memory/History 32 GB 32 GB 16 GB 200 hours of activity data

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 optional all-day acclimation and in sleep) yes (spot-check, and optional all-day acclimation and in sleep) yes (spot-check, and optional all-day acclimation and in sleep)
Fitness Age yes (in app) yes (in app) yes (in app) yes (in app)
Body Battery™ Energy Monitor
All-day Stress Tracking
Relaxation reminders
Relaxation breathing timer
Sleep
Advanced sleep monitoring (sleep score & insights)
Hydration yes (in Garmin Connect™ and optional Connect IQ™ widget) yes (in Garmin Connect™ and optional Connect IQ™ widget) yes (in Garmin Connect™ and optional Connect IQ™ widget) yes (in Garmin Connect™ and optional Connect IQ™ widget)
Menstrual Cycle yes (in Garmin Connect™ and optional Connect IQ™ widget) yes (in Garmin Connect™ and optional Connect IQ™ widget) yes (in Garmin Connect™) 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
Pulse Ox Blood Oxygen Saturation Monitor yes (with Acclimation) yes (with Acclimation)

Daily Smart Features

Connectivity Bluetooth®, ANT+®, Wi-Fi® Bluetooth®, ANT+®, Wi-Fi® Bluetooth®, ANT+®, Wi-Fi® Bluetooth®, ANT+®, Wi-Fi®
Connect IQ™ (downloadable watch faces, data fields, widgets and apps)
Smart notifications
Text response/reject phone call with text (Android™ only)
Calendar
Weather
Battery Saver - customizable low power watch
Controls smartphone music
Plays and controls watch music
Music Storage Up to 2,000 songs up to 2,000 songs Up to 1000 songs Up to 1000 songs
Find My Phone
Find My Watch
VIRB® Remote
Smartphone compatibility iPhone®, Android™ iPhone®, Android™ iPhone®, Android™ iPhone®, Android™
Pairs with Garmin Connect™ Mobile
Garmin Pay™

Safety and Tracking Features

LiveTrack
Group LiveTrack
Live Event Sharing Android™ Only
Incident Detection during select activities
Assistance

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™

Gym & Fitness Equipment

Available gym activity profiles Strength, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Pilates and Yoga Strength, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Pilates and Yoga Strength, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing and Yoga Strength, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Pilates and Yoga
Cardio workouts
Strength workouts
Yoga workouts
Pilates workouts
On-screen workout animations
Automatic rep counting

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) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory)
HR Broadcast (broadcasts HR data over ANT+™ to paired devices)
Respiration rate (during exercise) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory)
GPS speed and distance
Customizable data pages
Customizable activity profiles
Auto Pause®
Interval training
Advanced workouts
Downloadable training plans
Power Modes - customizable in-activity battery settings
Auto Lap®
Manual lap
Configurable lap alerts
Heat and altitude acclimation
VO2 max
Training Status (lets you see if you’re training effectively by tracking your training history and fitness level trend.)
Training Load (your total training load for the last 7 days calculated from estimated EPOC)
Training load focus
Training Effect
Training Effect (anaerobic)
Primary benefit (Training Effect labels)
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, Trail Running, Virtual Running

Running, Treadmill Running, Indoor Track Running, Trail Running, Virtual Running

Running, Treadmill Running, Trail Running

Running, Indoor and Outdoor Track Running, Treadmill Running, Trail Running, Virtual Running

GPS-based distance, time and pace
Running dynamics yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory)
Vertical oscillation and ratio (the degree of 'bounce' in your running motion and the cost-benefit ratio with stride length) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory)
Ground contact time and balance (shows how much time, in the running motion, your foot is on the ground rather than in flight and lets you check your running symmetry) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory)
Stride length (real time) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory)
Cadence (provides real-time number of steps per minute)
Performance condition (after running 6–20 minutes, compares your real-time condition to your average fitness level)
Lactate threshold (through analysis of your pace and heart rate, estimates the point where your muscles start to rapidly fatigue) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory)
PacePro™ Pacing Strategies
Run workouts
Race predictor
Foot pod capable

Golfing Features

Preloaded with 41,000 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 Automatic Automatic Automatic
Digital scorecard
Custom targets
Stat tracking (strokes, putts per round, greens and fairways hit)
Garmin AutoShot™
Full vector map
Auto CourseView updates
Green View with manual pin position
Hazards and course targets
PinPointer
PlaysLike distance
Touch-targeting (touch target on display to see the distance to any point)
Handicap scoring
TruSwing™ compatible
Round timer/odometer
Automatic club tracking compatible (requires accessory)

Outdoor Recreation

Available outdoor recreation profiles

Hiking, Indoor Climbing, Bouldering, Climbing, Mountain Biking, Skiing, Snowboarding, XC Skiing, Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Jumpmaster, Tactical

Hiking, Indoor Climbing, Bouldering, Climbing, Mountain Biking, Skiing, Snowboarding, XC Skiing, Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Jumpmaster, Tactical

Hiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC Skiing, Stand Up Paddleboarding, Rowing, Kayaking, Jumpmaster, Tactical

Hiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC 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
Trail run auto climb
Vertical speed
Total ascent/descent
Future elevation plot
Preloaded topographical maps
Preloaded ski resort maps
Downloadable cartography support
Compatible with BaseCamp™
GPS coordinates
Sight 'N Go
Area calculation yes (via Connect IQ™) yes (via Connect IQ™) yes (via Connect IQ™) yes (via Connect IQ™)
Hunt/fish calendar yes (via Connect IQ™) yes (via Connect IQ™) yes (via Connect IQ™) yes (via Connect IQ™)
Projected waypoint
Sun and moon information yes (via Connect IQ™) yes (via Connect IQ™) yes (via Connect IQ™) yes (via Connect IQ™)
XERO™ Locations
Expedition GPS Activity
Tides yes (via Connect IQ™) yes (via Connect IQ™) yes (via Connect IQ™)

Cycling Features

Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)
Courses
Cycle Map (routable cycling-specific street map)
MTB Grit & Flow
Available cycling profiles

Biking, Indoor Biking, Mountain Biking, Triathlon

Biking, Indoor Biking, Mountain Biking, Triathlon

Biking, Indoor Biking, Mountain Biking, Triathlon

Biking, Indoor Biking, Mountain Trail Biking

Bike lap and lap maximum power (with power sensor)
Race an activity
FTP (Functional Threshold Power) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory) yes (with compatible accessory)
Compatible with Vector™ (power meter)
Power meter compatible
Advanced Vector support
Compatible with Varia Vision™ (head-mounted display)
Compatible with Varia™ radar (rear-facing radar)
Compatible with Varia™ lights
Speed and cadence sensor support

yes (ANT+® and Bluetooth® Smart sensors)

yes (ANT+® and Bluetooth® Smart sensors)

yes (ANT+® and Bluetooth® Smart sensors)

yes

Swimming Features

Available swim profiles

Pool Swimming, Open Water Swimming, Swimming/Running

Pool Swimming, Open Water Swimming, Swimming/Running

Pool Swimming, Open Water Swimming, Swimming/Running

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™ and HRM-Swim™) yes (with HRM-Tri™ and HRM-Swim™) yes (with HRM-Tri™ and HRM-Swim™) yes (with HRM-Tri™ and HRM-Swim™)

Kid Activity Tracking Features

Toe-to-Toe™ Challenges yes (optional Connect IQ app) yes (optional Connect IQ app) yes (optional Connect IQ app) yes (optional Connect IQ app)