 |  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Fitbit Charge 2 |  Fitbit Charge 4 | |
|---|---|---|
| Display type | OLED | OLED |
| Fitbit Charge 2 | Fitbit Charge 4 | |
|---|---|---|
| Weight | 1.23 oz | 1.06 oz |
| Fitbit Charge 2 | Fitbit Charge 4 | |
|---|---|---|
| Colour of product |
|
|
| Fitbit Charge 2 | Fitbit Charge 4 | |
|---|---|---|
| Accelerometer | yes | yes |
| Altimeter | yes | yes |
| Heart rate monitor | yes | yes |
| Calorie counter | yes | yes |
| Distance meter | yes | yes |
| Pedometer | yes | yes |
| Sleep reading | yes | yes |
| Touchscreen | yes | yes |
| Vibration alarm | yes | yes |
| Fitbit Charge 2 | Fitbit Charge 4 | |
|---|---|---|
| Bluetooth | yes | yes |
| Bluetooth version | 4.0 LE | 4.0 |
| GPS | no | yes |
| NFC | no | yes |
| Fitbit Charge 2 | Fitbit Charge 4 | |
|---|---|---|
| Battery life | 5.0 day | 7.0 day |
| Battery type | Lithium Polymer | Lithium Polymer |
| Pros | ||
|---|---|---|
| Cons |
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