Here's a list of 20 popular mobile phone models along with their key features:

1. iPhone 13 Pro Max:

   - A15 Bionic chip

   - 6.7-Inch Super Retina XDR display

   - ProMotion technology with 120Hz refresh rate

   - Triple-camera system with ProRAW and ProRes capabilities

2. Samsung Galaxy S21 Ultra:

   - Exynos 2100/Snapdragon 888 processor

   - 6.8-inch Dynamic AMOLED 2X display

   - Quad-camera system with 108MP main sensor

   - S Pen support

3. Google Pixel 6 Pro:

   - Google Tensor chip

   - 6.7-inch LTPO OLED display

   - Dual-camera system with improved computational photography

   - Android 12 with Pixel-exclusive features

4. OnePlus 9 Pro:

   - Qualcomm Snapdragon 888 processor

   - 6.7-inch Fluid AMOLED display

   - Hasselblad-tuned quad-camera system

   - Warp Charge 65T fast charging

5. Xiaomi Mi 11 Ultra:

   - Qualcomm Snapdragon 888 processor

   - 6.81-inch AMOLED display

   - Triple-camera system with 50MP main sensor

   - Secondary display on the back

6. Apple iPhone 13:

   - A15 Bionic chip

   - 6.1-inch Super Retina XDR display

   - Dual-camera system with Night mode

   - iOS 15 with Focus mode and SharePlay

7. Samsung Galaxy Z Fold 3:

   - Qualcomm Snapdragon 888 processor

   - 7.6-inch Dynamic AMOLED 2X foldable display

   - S Pen support

   - Water and dust resistance

8. Sony Xperia 1 III:

   - Qualcomm Snapdragon 888 processor

   - 6.5-inch 4K HDR OLED display

   - Zeiss-branded triple-camera system

   - 360 Reality Audio and 120Hz refresh rate

9. Oppo Find X3 Pro:

   - Qualcomm Snapdragon 888 processor

   - 6.7-inch AMOLED display with adaptive refresh rate

   - Quad-camera system with 50MP main sensor

   - Microscope mode for extreme close-ups

10. Samsung Galaxy S21:

    - Exynos 2100/Snapdragon 888 processor

    - 6.2-inch Dynamic AMOLED 2X display

    - Triple-camera system with 12MP sensors

    - 8K video recording

11. Xiaomi Mi 11:

    - Qualcomm Snapdragon 888 processor

    - 6.81-inch AMOLED display

    - 108MP main camera sensor

    - Harman Kardon-tuned stereo speakers

12. iPhone 13 mini:

    - A15 Bionic chip

    - 5.4-inch Super Retina XDR display

    - Dual-camera system with Night mode

    - Compact size with powerful performance

13. Google Pixel 6:

    - Google Tensor chip

    - 6.4-inch AMOLED display

    - Dual-camera system with enhanced low-light performance

    - Integrated Titan M2 security chip

14. OnePlus 9:

    - Qualcomm Snapdragon 888 processor

    - 6.55-inch Fluid AMOLED display

    - Hasselblad collaboration for camera tuning

    - 65W Warp Charge

15. Xiaomi Mi 11 Lite:

    - Qualcomm Snapdragon 732G processor

    - 6.55-inch AMOLED display

    - Triple-camera system with 64MP main sensor

    - Slim and lightweight design

16. Samsung Galaxy Note 20 Ultra:

    - Exynos 990/Snapdragon 865+ processor

    - 6.9-inch Dynamic AMOLED 2X display

    - S Pen with reduced latency

    - Advanced multitasking features

17. iPhone 12 Pro Max:

    - A14 Bionic chip

    - 6.7-inch Super Retina XDR display

    - ProRAW and Dolby Vision HDR video recording

    - LiDAR scanner for AR capabilities

18. OnePlus Nord 2:

    - MediaTek Dimensity 1200 processor

    - 6.43-inch Fluid AMOLED display

    - AI-enhanced dual-camera system

    - 65W Warp Charge

19. Google Pixel 5:

    - Qualcomm Snapdragon 765G processor

    - 6.0-inch OLED display

    - Dual-camera system with Night Sight

    - Stock Android experience with regular updates

20. Xiaomi Redmi Note 11 Pro:

    - MediaTek Dimensity 1200 processor

    - 6.67-inch AMOLED display

    - Quad-camera system with 108MP main sensor

    - High-refresh-rate display

Each of these mobile phone models offers a unique set of features and capabilities, catering to various user preferences and needs. Whether you're looking for high-end camera performance, powerful processing, foldable displays, or stylus support, there's a wide range of options available to suit your requirements.