 |  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Garmin Forerunner 645 Music |  Polar M600 | |
|---|---|---|
| Screen resolution | 240 x 240 px | 240 x 240 px |
| Touchscreen | no | yes |
| Colour screen | yes | yes |
| Garmin Forerunner 645 Music | Polar M600 | |
|---|---|---|
| Gender |
|
|
| Width | 1.67 in | 1.42 in |
| Depth | 1.67 in | 1.77 in |
| Weight | 1.49 oz | 2.22 oz |
| Thickness | 0.53 in | 0.51 in |
| Garmin Forerunner 645 Music | Polar M600 | |
|---|---|---|
| Colour of product |
|
|
| Protection features | Water resistant | Water resistant |
| Waterproof depth | 5 | 10 |
| Garmin Forerunner 645 Music | Polar M600 | |
|---|---|---|
| Heart Rate Monitor | Built-in | Built-in |
| Calorie counter | yes | yes |
| Alarm | yes | yes |
| Altimeter | yes | yes |
| Compass | yes | yes |
| Date display | yes | yes |
| Display light | yes | yes |
| Pedometer | yes | yes |
| Sleep reading | yes | yes |
| Speedometer | yes | yes |
| Stopwatch | yes | yes |
| Timer | yes | yes |
| Vibration alarm | yes | yes |
| Garmin Forerunner 645 Music | Polar M600 | |
|---|---|---|
| Bluetooth | yes | yes |
| GLONASS | yes | yes |
| GPS | yes | yes |
| Garmin Forerunner 645 Music | Polar M600 | |
|---|---|---|
| Battery life (running) | 12.0 h | 8.0 h |
| Battery life (standby mode) | 7.0 day | 2.0 day |
| Pros | ||
|---|---|---|
| Cons |
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