The smartwatch model frequently chosen as a Christmas present for its retina display is the Apple Watch Series 9. It is well-regarded for its vibrant and clear Retina display, making it a popular gift choice, especially during the holiday season.

Additionally, the Apple Watch Series 10 is also highly praised for its polished features and enhanced wide-angle OLED display, which offers a larger and brighter screen that is easier to read. This model is another excellent option for those interested in a premium smartwatch with a retina-quality display as a Christmas gift.

Key Reasons for Choosing Apple Watch Series 9 and Series 10:

• Retina Display technology with bright, vivid colors and excellent clarity.
• Popular and recognizable as a premium smartwatch gift.
• Seamless integration with iPhones and advanced health monitoring features.
• The Series 10 includes a bigger, brighter screen and improved software functionality.

Thus, the Apple Watch Series 9 is the most frequently chosen, with the Series 10 as a strong contender for retina display lovers during Christmas gift- giving.