| | Edge? 305 | Edge? 205 | Edge? 605 | Edge? 705 |
| Unit dimensions, WxHxD: | 1.75" x 3.7" x 0.9" (4.4 x 9.4 x 2.3 cm) | 1.75" x 3.7" x 0.9" (4.4 x 9.4 x 2.3 cm) | 2" x 4.3" x 1" (5.1 x 10.9 x 2.5 cm) | 2" x 4.3" x 1" (5.1 x 10.9 x 2.5 cm) |
| Display size, WxH: | 1.17" x 1.44" (3.0 x 3.7 cm) | 1.17" x 1.44" (3.0 x 3.7 cm) | 1.37" x 1.71" (3.48 x 4.36 cm); 2.2" diag (5.6 cm) | 1.37" x 1.71" (3.48 x 4.36 cm); 2.2" diag (5.6 cm) |
| Display resolution, WxH: | 128 x 160 pixels | 128 x 160 pixels | 176 x 220 pixels | 176 x 220 pixels |
| Weight: | 3.1 oz (88 g) | 3.1 oz (88 g) | 3.7 oz (104.9 g) | 3.7 oz (104.9 g) |
| Battery: | rechargeable lithium-ion | rechargeable lithium-ion | rechargeable li-polymer | rechargeable li-polymer |
| Battery life: | 12 hours, typical | 12 hours, typical | 15 hours, typical | 15 hours, typical |
| Water resistant: | yes (IPX7) | yes (IPX7) | yes (IPX7) | yes (IPX7) |
| GPS-enabled: | yes | yes | yes | yes |
| High-sensitivity receiver: | yes | yes | yes | yes |
| RoHS version available: | yes | yes | yes | yes |
| Basemap: | no | no | yes | yes |
| Ability to add maps: | no | no | yes | yes |
| Accepts data cards: | no | no | microSD card (not included) | microSD card (not included) |
| Lap history: | 1000 laps | 1000 laps | 1000 laps | 1000 laps |
| Waypoints/favorites/locations: | 100 | 100 | 100 | 100 |
| Routes: | 50 | 50 | 50 | 50 |
| Heart rate monitor: | yes (some versions) | no | no | yes |
| Bike speed/cadence sensor: | yes (some versions) | no | no | yes (some versions) |
| Foot pod: | no | no | no | no |
| Automatic sync (automatically transfers data to your computer): | no | no | no | no |
| Garmin Connect??? compatible (online community where you analyze, categorize and share data): | yes (coming in January 2008) | yes (coming in January 2008) | yes (coming in January 2008) | yes (coming in January 2008) |
| Garmin Training Center?? software compatible: | yes | yes | yes | yes |
| Virtual Partner?? (train against a digital person): | yes | yes | yes | yes |
| Courses (compete against previous workouts): | yes | yes | yes | yes |
| Auto Pause?? (pauses and resumes timer based on speed): | yes | yes | yes | yes |
| Auto Lap?? (automatically starts a new lap): | yes | yes | yes | yes |
| Auto Scroll (cycles through data pages during workout): | no | no | no | no |
| Multi-sport (changes sport mode with a press of a button): | no | no | no | no |
| Advanced workouts (create custom, goal-oriented workouts): | yes | yes | yes | yes |
| Simple workouts (input time, distance and calorie goals): | yes | yes | yes | yes |
| Pace alert (triggers alarm if you vary from preset pace): | yes | yes | yes | yes |
| Time/distance alert (triggers alarm when you reach goal): | yes | yes | yes | yes |
| Interval training (set up exercise and rest intervals): | yes | yes | yes | yes |
| Customizable screen(s): | yes | yes | yes | yes |
| Barometric altimeter: | yes | no | no | yes |
| Unit-to-unit transfer (shares data wirelessly with similar units): | no | no | no | yes |
| Power meter compatible (displays power data from compatible 3rd party ANT+Sport???-enabled power meters): | no | no | no | yes |
| Sport Watch: | no | no | no | no |
| Additional: | NA | NA | Operating temperature: -15??C to +50??C | Operating temperature: -15??C to +50??C |