No, the Galaxy S21 series doesn't have a headphone jack - SamMobile
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Does The Galaxy S21 Have A Headphone Jack?
![Oaky USB C to 3.5mm Headphone Jack Adapter Compatible with Samsung S21 Ultra with [Realtek Chip/Hi-res/DAC] Type C Aux Headphone Adapter : Amazon.in: Electronics](https://m.media-amazon.com/images/I/31wIjNqXhSL._AC_UF1000,1000_QL80_.jpg "Oaky USB C to 3.5mm Headphone Jack Adapter Compatible with Samsung S21 Ultra with [Realtek Chip/Hi-res/DAC] Type C Aux Headphone Adapter : Amazon.in: Electronics")
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Official Samsung USB-C To Headphone Jack 3.5mm Aux Adapter - White
