 |  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Garmin D2 |  Garmin Forerunner 645 | |
|---|---|---|
| Screen resolution | 70 x 70 px | 240 x 240 px |
| Touchscreen | no | no |
| Garmin D2 | Garmin Forerunner 645 | |
|---|---|---|
| Width | 1.93 in | 1.67 in |
| Depth | 1.93 in | 1.67 in |
| Weight | 2.89 oz | 1.47 oz |
| Thickness | 0.67 in | 0.53 in |
| Garmin D2 | Garmin Forerunner 645 | |
|---|---|---|
| Colour of product | Black |
|
| Waterproof depth | 50 | 5 |
| Garmin D2 | Garmin Forerunner 645 | |
|---|---|---|
| Heart Rate Monitor | Built-in | Built-in |
| Distance meter | yes | yes |
| Calorie counter | yes | yes |
| Alarm | yes | yes |
| Altimeter | yes | yes |
| Barometer | yes | yes |
| Compass | yes | yes |
| Date display | yes | yes |
| Speedometer | yes | yes |
| Timer | yes | yes |
| Vibration alarm | yes | yes |
| Garmin D2 | Garmin Forerunner 645 | |
|---|---|---|
| Bluetooth | no | yes |
| GPS | yes | yes |
| Garmin D2 | Garmin Forerunner 645 | |
|---|---|---|
| Battery type | Lithium-Ion | Built-in |
| Battery life (running) | 50.0 h | 168.0 h |
| Battery life (standby mode) | 14.0 day | 7.0 day |
| Pros | ||
|---|---|---|
| Cons |
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