10 Best Mp 4 Players 2025 in the United States

The FiiO M21 is a portable music player designed to deliver high-quality sound for music lovers who value detailed audio. It features a powerful Snapdragon 680 processor and runs Android 13, which means it can smoothly run popular music apps and manage your songs easily. With 64GB of storage, you have plenty of space for a large music collection. The 4.7-inch IPS screen offers decent clarity, but it’s on the smaller side compared to some other mp4 players, which might be less ideal if you want to watch videos often. A standout feature is its advanced sound system, including four CS43198 DAC chips and a two-stage amplifier that provide clear, rich, and dynamic audio, meeting the needs of audiophiles. It also supports many file formats, including high-resolution and DSD audio, ensuring you can enjoy a wide range of music types.

The battery setup is a bit unusual as it uses a 9V battery included in the package, but the Desktop Mode helps protect battery life by using external power when plugged in, which is a nice touch for longer listening sessions. Connectivity options like Bluetooth and Wi-Fi allow wireless streaming, and dual headphone outputs with separate amplification circuits let you connect different headphones easily. However, since it uses an LCD screen rather than OLED, the display might not be as vibrant, and the battery life could vary depending on usage since it’s powered by a replaceable battery rather than a built-in rechargeable one. The FiiO M21 is an excellent option for those who prioritize sound quality and flexible connectivity in a compact player, though screen size and battery rechargeability should be considered.

The FiiO M17 Portable Desktop-Class Music Player is a high-end device designed for audiophiles who demand top-notch audio quality. Key strengths include its superior DAC and amplification technology, which ensures excellent sound clarity and minimal distortion. The device also features robust connectivity options, including multiple headphone and line-out outputs, USB ports, and Bluetooth 5.0, making it versatile for various audio setups.

The large 5.99-inch screen provides a good display size for navigation, and it runs on Android 10 OS, allowing the installation of third-party apps for a more personalized experience. The battery life is quite impressive, with a massive 9200mAh battery offering up to 10 hours of playback time, although the charging time is relatively long at 4.5 hours. The M17 also boasts a unique RGB ambient light system for added visual appeal and a cooling system to manage heat dissipation during extended use.

However, there are some drawbacks. The device is quite hefty, which might make it less portable for on-the-go use. Additionally, the internal storage capacity is only 4GB, which is quite limited, though it does support external micro SD cards for expanded storage. The price point may also be a consideration, as the advanced features and high-quality components make it a premium product. The FiiO M17 is best suited for serious music enthusiasts looking for desktop-level audio performance in a portable format, but it may be overkill for casual listeners or those seeking a more compact and lightweight player.

The AiMoonsa MP3 Player with 128GB storage offers a huge capacity, allowing you to store thousands of songs, which is excellent if you have a large music library. It supports many common audio formats, including lossless ones like FLAC and APE, so it can deliver high-quality sound. Thanks to the built-in HD speaker, you can listen without earphones, which is a nice touch for casual use, although the sound won’t match dedicated headphones.

The device is compact and lightweight, making it easy to carry around, with a 1.8-inch screen that’s small but sufficient for navigating menus and reading e-books. Bluetooth 5.2 ensures stable wireless connections and better battery efficiency, allowing for typical playback time expected from such players. The touch buttons have backlighting, helping you control the player in low light without annoying button sounds.

Additional features like FM radio, voice recorder, alarm clock, and e-book reader add versatility, making it suitable for various activities like exercising, commuting, or relaxing. It also comes with earphones and useful accessories, making it ready to use out of the box. The smaller screen size may limit video or photo viewing, and while the built-in speaker is convenient, it won’t replace headphones for serious music listening. This player is well suited for someone wanting a high-capacity, multifunctional portable music device with solid sound quality and Bluetooth, especially if extra features like radio and recording are valuable.