Product Comparison

 
Physical dimensions: 2.1" x 2.2" x 0.8" (5.4 x 5.6 x 1.9 cm) 1.80" x 2.50" x 0.56" (4.57 x 6.35 x 1.42 cm)
Display size, WxH: 1.3" x 0.8" (3.3 x 2.0 cm) 1.0" (2.54 cm) diameter
Display resolution, WxH: 160 x 100 pixels 128 x 128 pixels
Touchscreen: No Yes
Weight: 2.5 oz (72 g) 2.54 oz (72 g)
Battery: rechargeable lithium-ion rechargeable lithium-ion
Battery life: up to 20 hours 4 weeks in watch mode; 8 hours in training mode
GPS-enabled: Yes Yes
Water rating: 5 ATM IPX7
High-sensitivity receiver: Yes Yes
Basemap: No No
Ability to add maps: No No
Accepts data cards: no no
History: 1000 laps 1000 laps
Waypoints/favorites/locations: 100 100
Routes: 0 0
Heart rate monitor: Yes (Some versions) Yes (Some versions)
Bike speed/cadence sensor: Yes (optional) Yes (optional)
Foot pod: Yes (optional) Yes (optional)
Automatic sync (automatically transfers data to your computer): Yes Yes
Garmin Connect™ compatible (online community where you analyze, categorize and share data): Yes Yes
Virtual Partner® (train against a digital person): Yes Yes
Virtual Racer™ (compete against other activities): No Yes
Courses (compete against previous activities): Yes No
Auto Pause® (pauses and resumes timer based on speed): Yes Yes
Auto Lap® (automatically starts a new lap): Yes Yes
Auto Scroll (cycles through data pages during workout): Yes Yes
Multi-sport (changes sport mode with a press of a button): Yes No
Advanced workouts (create custom, goal-oriented workouts): Yes Yes
Pace alert (triggers alarm if you vary from preset pace): Yes (for advanced workouts only) Yes (for advanced workouts only)
Time/distance alert (triggers alarm when you reach goal): Yes Yes
Vibration alert: (choose between alert tones and/or vibration alert): Yes Yes
Interval training (set up exercise and rest intervals): Yes Yes
Heart rate-based calorie computation: Yes Yes
Swim metrics (stroke type, stroke count and pool lengths): No No
Training Effect (measures impact of an activity on your aerobic fitness): No Yes
Customizable screen(s): Yes Yes
Barometric altimeter: No No
Unit-to-unit transfer (shares data wirelessly with similar units): No No
Power meter compatible (displays power data from compatible 3rd party ANT+™-enabled power meters): Yes (records data approx. 1 per second) No
Temperature (displays and records temperature while you ride): No No
Shock Resistant: Yes Yes
Sport watch: No Yes
Additional:

Garmin Connect is compatible with Windows® XP or newer and PowerPC and Intel-based Mac running OS 10.4 or later with Safari.

Watch functions include date and alarm.

Run/walk feature: yes

Garmin Connect and Garmin Training Center are compatible with Windows® XP or newer and Intel-based Mac OS 10.4.11 or later with Safari.