Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
the fitbit service and fitbit content are provided `` as is , '' without warranty of any kind . 

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