Product Comparison
Forerunner® 735XT
$349.99 USD and Up
|
fēnix® Chronos
$899.99 USD and Up
|
fēnix® 3 HR
$549.99 USD and Up
|
Forerunner® 735XT
$349.99 USD and Up
|
fēnix® Chronos
$899.99 USD and Up
|
Free U.S. Ground Shipping 
fēnix® 3 HR
$549.99 USD and Up
|
Print|
You're a serious triathlete. You want advanced running dynamics at a lower cost. This GPS running watch will show you the way. |
Luxury GPS multisport watch with Sapphire lens and wrist-based heart rate |
Rugged GPS multisport watch with Sapphire lens and wrist-based heart rate |
General
| Lens Material |
chemically strengthened glass |
sapphire crystal |
domed sapphire crystal |
|---|---|---|---|
| Bezel Material |
stainless steel or titanium |
stainless steel |
|
| Case material | stainless steel or titanium | fiber-reinforced polymer | |
| QuickFit™ watch band compatible |
yes (26 mm) |
||
| Quick Release bands | yes (22 mm, Industry standard) | ||
| Strap material |
silicone |
silicone, steel, titanium or leather |
silicone |
| Physical size |
44.5 x 44.5 x 11.9 mm |
49 x 49 x 15 mm |
51 x 51 x 17.5 mm |
| Color display | |||
| Display size | 1.23" (31.1 mm) diameter | 1.2” (30.4 mm) diameter | 1.2” (30.4 mm) diameter |
| Display resolution | 215 x 180 pixels | 218 x 218 pixels | 218 x 218 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 |
40.2 g |
96 g |
86 g |
| Battery life |
Smartwatch Mode: Up to 11 days GPS mode: Up to 14 hours UltraTrac™ mode: Up to 24 hours without wrist heart rate |
Smartwatch mode: Up to 8 days GPS mode: Up to 13 hours UltraTrac™ mode: Up to 25 hours without wrist heart rate |
Smartwatch mode: Up to 2 weeks GPS mode: Up to 16 hours UltraTrac™ mode: Up to 40 hours |
| Water rating | 5 ATM | 10 ATM | 10 ATM |
| Memory/History | 80 hours of activity data | 64 MB | 32 MB |
Clock Features
| Time/date | |||
|---|---|---|---|
| GPS Time Sync | |||
| Automatic daylight saving time | |||
| Alarm clock | |||
| Timer | |||
| Stopwatch | |||
| Chronograph | |||
| Sunrise/sunset times |
Health Monitoring
| Wrist-based Heart Rate (constant, every second) | |||
|---|---|---|---|
| Daily Resting Heart Rate | |||
| Fitness Age | yes (in app) | ||
| Sleep | |||
| Hydration | yes (in Garmin Connect™) | ||
| Woman's Health Tracking | yes (in Garmin Connect™) |
Sensors
| GPS | |||
|---|---|---|---|
| GLONASS | |||
| Garmin Elevate™ wrist heart rate monitor | |||
| Barometric altimeter | |||
| Compass | |||
| Accelerometer | |||
| Thermometer |
Daily Smart Features
| Connectivity | Bluetooth® Smart and ANT+® | Bluetooth® Smart, ANT+®, Wi-Fi® | |
|---|---|---|---|
| Connect IQ™ (downloadable watch faces, data fields, widgets and apps) | |||
| Smart notifications | |||
| Calendar | |||
| Weather | |||
| Controls smartphone music | |||
| Find My Phone | |||
| Find My Watch | |||
| VIRB® Remote | |||
| Smartphone compatibility | iPhone®, Android™ | iPhone®, Android™ | iPhone®, Android™ |
| Pairs with Garmin Connect™ Mobile |
Safety and Tracking Features
| LiveTrack | |||
|---|---|---|---|
| Group LiveTrack |
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 | Indoor Rowing | Indoor Rowing |
|---|
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) |
| HR Broadcast (broadcasts HR data over ANT+™ to paired devices) | |||
| GPS speed and distance | |||
| Customizable data pages | |||
| Customizable activity profiles | |||
| Auto Pause® | |||
| Interval training | |||
| Advanced workouts | |||
| Downloadable training plans | |||
| Auto Lap® | |||
| Manual lap | |||
| Configurable lap alerts | |||
| VO2 Max (Run) | |||
| 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 Effect | |||
| Training Effect (anaerobic) | |||
| 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 | |||
| Touch and/or button lock | |||
| Hot keys | |||
| Auto scroll | |||
| Activity history on watch |
Running Features
| Available run profiles |
yes |
Running, Treadmill Running, Trail Running |
Running, Indoor Running, Trail Running |
|---|---|---|---|
| GPS-based distance, time and pace | |||
| Running dynamics | 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) |
| 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) |
| Stride length (real time) | 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) |
| Run workouts | |||
| Race predictor | |||
| Foot pod capable |
Golfing Features
| 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) | Manual | Manual | |
| Digital scorecard | |||
| Stat tracking (strokes, putts per round, greens and fairways hit) | |||
| Garmin AutoShot™ | |||
| Green View with manual pin position | |||
| Hazards and course targets | |||
| TruSwing™ compatible | |||
| Round timer/odometer |
Outdoor Recreation
| Available outdoor recreation profiles |
Hiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC Skiing, Stand Up Paddleboarding, Rowing, Jumpmaster, Tactical |
Hiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC Skiing, Stand Up Paddleboarding, Rowing, Jumpmaster, Tactical |
|
|---|---|---|---|
| Point-to-point navigation | |||
| Bread crumb trail in real time | |||
| Back to start | |||
| TracBack® | |||
| UltraTrac mode | |||
| Elevation profile | |||
| Distance to destination | |||
| Barometric trend indicator with Storm Alert | |||
| Trail run auto climb | |||
| Vertical speed | |||
| Total ascent/descent | |||
| Compatible with BaseCamp™ | |||
| GPS coordinates | |||
| Sight 'N Go | |||
| Area calculation | yes (via Connect IQ™) | yes (via Connect IQ™) | |
| Hunt/fish calendar | yes (via Connect IQ™) | yes (via Connect IQ™) | |
| Projected waypoint | |||
| Sun and moon information | yes (via Connect IQ™) | yes (via Connect IQ™) | |
| Tides | 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 | |||
| Available cycling profiles |
yes |
Biking, Indoor Biking, Mountain Biking, Triathlon |
Biking, Indoor 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) | |
| Compatible with Vector™ (power meter) | |||
| Power meter compatible | |||
| Compatible with Varia Vision™ (head-mounted display) | |||
| Compatible with Varia™ radar (rear-facing radar) | |||
| Compatible with Varia™ lights | |||
| Speed and cadence sensor support |
yes |
yes (ANT™) |
yes (ANT™) |
Swimming Features
| Available swim profiles |
Pool Swimming, Open Water Swimming |
Pool Swimming, Open Water Swimming, Swimming/Running |
Pool Swimming, Open Water Swimming |
|---|---|---|---|
| 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) | |||
| Countdown start (pool swim only) | |||
| Pool swim workouts | |||
| 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™) |
Kid Activity Tracking Features
| Toe-to-Toe™ Challenges | yes (optional Connect IQ app) |
|---|