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| Pebble Time Remove Buy Now | Polar M400 Remove Buy Now | Sony SmartBand 2 Remove Buy Now |
Basic Info |
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| Suggested Price | $150 | $200 | $130 |
| Release | 2015 | 2014 | 2015 |
Activity & Fitness |
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| Calories | |||
| Cycling (Bicycling) | |||
| Distance | |||
| Heart | n/a | ||
| Oxygen | |||
| Sleep | |||
| Steps | |||
| Swim | |||
Battery |
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| Duration | 7 days | 8 hours to 30 days | 2 days |
| Rechargeable | |||
Compatibility |
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| Android | |||
| iOS | |||
| Windows Phone | n/a | n/a | n/a |
| Mac | n/a | n/a | |
| Windows | n/a | n/a | |
Connectivity |
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| Bluetooth | |||
| Cellular | |||
| GPS | |||
| NFC | |||
| Wi-Fi | |||
Display |
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| Color | n/a | ||
| Resolution | 168 x 144 | n/a | n/a |
| Size | 1.26 inches | n/a | n/a |
| Touch | n/a | ||
| Type | e-paper | n/a | n/a |
Functions |
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| Audio Speaker | Alerts only | ||
| Clock | |||
| Phone | |||
| Vibration | |||
| Voice | |||
Hardware |
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| Accelerometer | |||
| Barometer or Altimeter | |||
| Ultraviolet Sensor | |||
| Water Resistance | 5 ATM | 3 ATM | IP58 |
Notifications |
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| Phone | |||
| Emails | |||
| Texts | |||
Software |
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| Operating System | Pebble OS | n/a | n/a |
| Apps | |||
| Music | |||