In Oi, a hotel is required to offer a certain number of upscale conveniences to be rated 5 stars. These may include on-site gyms, saunas and spas, gourmet restaurants, premium bedding, complimentary luxury toiletries and more. What also sets 5-star hotels apart is their exceptional standard of service. You can look forward to things like in-room massages, concierge services and nightly turn-down services. Some may also offer thoughtful touches like a welcome gift.