Based on the information provided, the iPhone 11 you are considering for 8,000 pesos seems to be in decent condition overall. Here are some points to consider:
1. Storage: The iPhone 11 has a decent storage capacity of 128GB, which should be sufficient for storing your apps, photos, and videos.
2. Dual SIM capability: The phone supports dual SIM functionality, allowing you to use two different SIM cards simultaneously.
3. iOS 17 update: The phone is updated to the latest iOS 17 version, which ensures that you have access to the latest features, security updates, and performance enhancements.
4. Face ID working: The Face ID feature, which provides secure biometric authentication, is functioning properly.
5. True Tone not working: True Tone is a display technology that adjusts the white balance of the screen to match the ambient light. While it's not a critical feature, you may miss out on the benefits of True Tone if it's not working.
6. Clear cameras: Both rear and front cameras are described as clear, which is essential for capturing high-quality photos and videos.
7. Good button functionality: All buttons on the phone are working well, ensuring smooth navigation and operation.
8. 77% battery health: The battery health at 77% may indicate some wear and tear, but it should still provide decent usage time. You may need to monitor the battery performance over time.
9. Original parts: The phone is described as having original parts, which is important for ensuring compatibility and performance.
Overall, the iPhone 11 seems to be a good deal for the price, considering its features and condition. However, you may want to consider the True Tone issue and the battery health when making your decision. If these factors are not deal-breakers for you, then the phone could be a good purchase.