Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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the accuracy of the data collected and presented through the fitbit service is not intended to match that of medical devices or scientific measurement devices . 

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. OPTIONS: ["Jurisdiction", "None", "Content removal", "Choice of law", "Limitation of liability", "Unilateral termination", "Contract by using", "Arbitration", "Unilateral change"].