Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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you also acknowledge that these terms and the fitbit privacy policy do not apply to any third-party services . 

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