Geopalz ibitz key
The fitness keys are tracking devices that monitor movement and feed information back to an iPhone via Bluetooth.
The keys come in child or adult versions but, crucially, it has exclusive iPhone games that encourage you to keep fit and reach your goals, whether it's walking a long way or moving fast. Cute characters guide children and parents and the results can be shared via Facebook or a private group - like a mini social network - which you create for your charity walking target, for example.
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