The Samsung Galaxy S21 does not include a 3.5mm headphone jack, marking a clear shift toward wireless audio and minimalist design. Users seeking wired headphone compatibility must use a USB-C to 3.5mm adapter, preferably one with an integrated digital-to-analog converter (DAC), to guarantee peak sound quality. This design choice aligns the S21 with recent industry trends and differentiates it from earlier models like the S10. Various adapter and wireless accessory options exist to guarantee audio flexibility—further details follow.
Key Takeaways
- The Samsung Galaxy S21 does not have a 3.5mm headphone jack.
- Users must use a USB-C to 3.5mm adapter to connect wired headphones.
- Wireless audio options, such as Bluetooth headphones, are fully supported.
- Previous models like the Galaxy S10 included a headphone jack, but the S21 does not.
- The move reflects industry trends toward sleeker designs and wireless audio solutions.
The Galaxy S21’s Design and the Headphone Jack Decision
Among the most notable design choices in the Galaxy S21 is the absence of a 3.5mm headphone jack—a decision that reflects both evolving industry standards and Samsung’s pursuit of a more streamlined device. The design implications of this move are significant: by eliminating the headphone jack, Samsung achieves thinner bezels and a more compact form factor without sacrificing screen size. This approach continues the company’s trajectory, first seen in the Galaxy S20, and aligns with broader industry adoption, particularly among brands like Apple. Consumer preferences increasingly favor sleek devices and wireless audio, further validating the move. Additionally, the removal supports Samsung’s marketing and accessory ecosystem, emphasizing wireless solutions. Ultimately, this design choice underscores a shift toward minimalist aesthetics and advanced wireless technology integration.
How to Use Wired Headphones With the Galaxy S21

Connecting wired headphones to the Galaxy S21 involves a straightforward yet specific process, dictated by the device’s omission of a native 3.5mm headphone jack. Users must obtain a 3.5mm-to-USB-C adapter featuring a built-in DAC (Digital to Analogue Converter) to guarantee adapter compatibility and peak sound quality. Both official Samsung adapters and third-party alternatives are available; the latter may provide cost savings but require careful attention to DAC inclusion and compatibility with the S21’s USB-C port. Setup is simple: connect the adapter to the phone’s USB-C port, then plug in the headphones. Sound quality hinges on both the adapter’s and the headphones’ specifications. Compact and portable, these adapters enable continued use of traditional wired headphones without compromising audio performance.
Comparing the Galaxy S21 to Previous Samsung Models

While the Galaxy S21 continues Samsung’s established design direction, its omission of a dedicated 3.5mm headphone jack sets it apart from earlier flagship models such as the Galaxy S9 and S10. The S9 and S10 featured integrated headphone jacks, allowing users to connect standard wired headphones directly for ideal audio compatibility. In contrast, the Galaxy S21—like the S20 before it—eliminates this port, reflecting Samsung’s alignment with industry trends that favor wireless audio solutions. This shift necessitates the use of USB-C to 3.5mm adapters for users preferring wired connections. The consistent absence of the headphone jack in both the S20 and S21 signals Samsung’s commitment to this design evolution, emphasizing slimmer profiles and enhanced features, while fundamentally altering traditional audio compatibility for consumers.
Wireless Alternatives and Accessory Options

As the Galaxy S21 foregoes the traditional 3.5mm headphone jack, users are presented with a range of modern audio solutions designed to accommodate both wireless and wired preferences. Wireless audio is readily accessible through Bluetooth headphones and true wireless earbuds, such as Samsung’s Galaxy Buds, which leverage Bluetooth 5.0 for enhanced range and stability. These devices often feature advanced audio codecs like aptX Adaptive, providing high-quality sound without cables. For those seeking wired options, USB-C to 3.5mm adapters offer adapter compatibility, supporting legacy headphones via the device’s USB-C port. Many adapters incorporate high-quality audio chips and multi-function capabilities, such as simultaneous charging. Devices and adapters come from reputable brands, with prices typically ranging from $10 to $30, ensuring broad accessibility. Additionally, many wireless earbuds provide active noise cancellation for an immersive listening experience even in noisy environments.
What the Removal of the Headphone Jack Means for Users

The removal of the traditional 3.5mm headphone jack from the Galaxy S21 represents a significant shift in both device engineering and user interaction, with implications that extend across design, market positioning, and daily usability. From a user experience perspective, slimmer bezels and a more compact body offer ergonomic advantages and a visually appealing, premium aesthetic. However, this change necessitates adaptation, as users must adjust to wireless audio or rely on adapters—potentially increasing costs and causing compatibility concerns. Market implications are notable: Samsung aligns with minimalist design trends and leverages accessory sales, such as wireless earbuds and adapters, tapping into new revenue streams. Additionally, streamlined hardware reduces electronic waste and packaging, supporting sustainability goals. Ultimately, the absence of a headphone jack reflects evolving priorities in smartphone design and consumer expectations. Many users now turn to advanced wireless earbuds that feature Bluetooth 5.2 connectivity for superior performance and convenience.
Frequently Asked Questions
Is the Galaxy S21 Water-Resistant or Waterproof?
The Galaxy S21 offers water resistance features with an IP68 rating, allowing protection against splashes and brief immersion. However, it lacks full waterproof capabilities, meaning it is not designed for prolonged or deep water exposure.
What Colors Is the Galaxy S21 Available In?
The Galaxy S21 offers diverse color options, including Phantom Black, Phantom White, and Phantom Purple, reflecting its design variations. Additional colors, such as Phantom Silver and Phantom Gold, are available on S21 Plus and S21 Ultra models.
Does the Galaxy S21 Support Expandable Storage via Microsd?
The Galaxy S21 does not offer expandable storage or microSD support. Users are limited to the device’s built-in storage options and must utilize cloud services or external drives if additional storage capacity is required.
How Long Does the Galaxy S21’S Battery Last on Average Use?
Battery longevity boasts brilliance: during typical usage, the Galaxy S21 series sustains strong performance. The S21 and S21 Plus average about 10 hours, while the S21 Ultra excels, enduring nearly 11.5 hours between charges.
What Processor Does the Galaxy S21 Use?
The Galaxy S21 specifications include either the Qualcomm Snapdragon 888 or Samsung Exynos 2100 processor, depending on region. Both chips deliver flagship Galaxy S21 performance with advanced AI, 5G connectivity, and strong multitasking and gaming capabilities.