Strap materialsiliconePhysical sizeStretchy bands accommodate wrists up to 147 mm (ages 4-7)Adjustable bands fit 130-175 mm (ages 4+)vvofit 3, vivofit jr. and vivofit jr. 2 bands are compatibleWeight17.5 gWater rating5 ATMDisplay typesunlight-visible, tran
| Strap material | silicone |
| Physical size | Stretchy bands accommodate wrists up to 147 mm (ages 4-7) Adjustable bands fit 130-175 mm (ages 4+) vvofit 3, vivofit jr. and vivofit jr. 2 bands are compatible |
| Weight | 17.5 g |
| Water rating | 5 ATM |
| Display type | sunlight-visible, translative 8-color memory-in-pixel (MIP) |
| Display size | 0.43″ x 0.43″ (11 x 11 mm) |
| Display resolution | 88 x 88 pixels |
| Color display | |
| Battery life | Up to 1 year (1 x CR1632 user-replaceable) |
| Memory/History | 4 weeks of activity data |
Clock Features |
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| Time/date | |
| Automatic daylight saving time | |
| Alarm clock | |
| Timer | |
| Stopwatch |
Sensors |
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| Accelerometer |
Daily Smart Features |
|
| Connectivity | Bluetooth |
| Smartphone compatibility | iPhone, Android |
Activity Tracking Features |
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| Step counter | |
| Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it) | |
| Sleep monitoring (monitors total sleep and periods of movement or restful sleep) |
Kid Activity Tracking Features |
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| 60-minute activity goal | |
| Chores | |
| Rewards (coins) | |
| Task timers (2, 5, 10, 15, 20 and 30 minutes) | |
| Audible alerts | |
| Reminder alerts | |
| Unlock new step icons | |
| Toe-to-Toe Challenges |
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