FINIS Duo Underwater MP3 Player 4GB

83%

Sound Quality

Battery Life

Waterproof Performance

Comfort & Fit

Ease of Setup

Navigation & Interface

Build Quality & Durability

Value for Money

Connectivity & Compatibility

Battery Charging Speed

Sound Clarity Underwater

Long-Term Use Comfort

Portability & Design

Overview

The FINIS Duo Underwater MP3 Player 4GB is designed specifically for swimmers who want to enjoy music while training or relaxing in the water. Using advanced bone conduction technology, this player delivers sound through your cheekbones, leaving your ears open to hear surrounding sounds. With 4GB of internal storage, it supports both MP3 and WMA audio formats, allowing for a variety of music files. Thanks to its waterproof IPX8 rating, you can safely use it during long swimming sessions, with up to 7 hours of continuous playback on a single charge.

Features & Benefits

The bone conduction technology is one of the standout features of this device, offering crystal-clear sound while maintaining your awareness of your surroundings. Its 4GB storage allows you to load up to 1000 songs, ideal for lengthy swim sessions or extended workouts. With its IPX8 waterproof rating, the player is fully submersible, making it perfect for use in all water sports. The simple interface ensures smooth navigation, even while swimming, letting you easily manage files and adjust settings. Whether for training or leisure, it provides a hassle-free music experience.

Best For

This waterproof MP3 player is ideal for swimmers who want a music experience that doesn’t block their ears. It's a great option for fitness enthusiasts looking for music during water-based workouts like swimming or aqua aerobics. Athletes training in the water will also appreciate the reliable audio and long battery life. Additionally, those who prefer a straightforward, no-fuss device without needing extra accessories for waterproofing will find this player highly convenient and practical.

User Feedback

Users generally praise the comfort and clarity of sound, especially during extended swim sessions. Many appreciate how easy it is to set up and load their music, with the player’s intuitive interface making it simple to navigate even while in the pool. The 7-hour battery life is widely regarded as ideal for long training periods. However, a few users mentioned some difficulty in adjusting the volume or skipping tracks while swimming, which may be a challenge for those who need to make frequent adjustments mid-session.

#MP3 & MP4 Players

#Portable Audio & Video

#Electronics

Pros

Bone conduction technology allows clear audio without blocking ears, making it safe for swimmers.
Waterproof with an IPX8 rating, this player can be used in the pool or under heavy rain.
Long-lasting battery offers up to 7 hours of continuous playback, ideal for long workout sessions.
The 4GB storage can hold up to 1000 songs, offering ample space for varied playlists.
The simple interface makes it easy to navigate and manage files, even during a swim.
Compact design with no need for extra accessories makes this device convenient for travel.

Cons

Some users find the wired connection limiting, especially compared to wireless Bluetooth options.
The sound quality, while clear, lacks depth and bass, which may disappoint audiophiles.
A few swimmers report that the device can become uncomfortable during extended wear.
It can be difficult to adjust the volume or skip tracks while in the middle of a swim.
The device is not as customizable as some may prefer, offering fewer options for sound settings.
Users looking for a premium build may find the materials of this device somewhat basic.

Ratings

The ratings for the FINIS Duo Underwater MP3 Player 4GB reflect global feedback from verified users across multiple languages and platforms. After filtering out spam, incentivized, and low-quality reviews, the analysis captures both the strengths and weaknesses that real buyers have experienced. While this device excels in specific areas like comfort and battery life, some users note occasional challenges with volume control and setup. The following ratings provide a balanced overview of the product's performance based on authentic feedback from diverse sources.

Sound Quality

87%

Many users are impressed with the clear and crisp sound quality, especially considering the bone conduction technology. The audio is clear enough for swimming without compromising safety, as the device leaves the ears open to surrounding sounds. This makes it a great choice for swimmers who want to enjoy music while staying aware of their environment.

However, a few users mentioned that the sound quality could be lacking in some conditions, especially at higher speeds or with louder ambient noise. Some also feel that the bass is underwhelming compared to traditional headphones, which can be a downside for users who prioritize full-range sound.

Battery Life

91%

The battery life of up to 7 hours is highly appreciated, with many buyers mentioning that it lasts through multiple long swim sessions without needing a recharge. This makes it a reliable option for athletes and fitness enthusiasts who engage in extended workouts. Additionally, users appreciate that it holds up well over time without significant battery degradation.

On the downside, a small group of users felt that the battery life could be longer, particularly for those using it for very long swimming or workout sessions. There are occasional complaints about the battery draining faster if the volume is set too high.

Waterproof Performance

94%

The IPX8 waterproof rating ensures that the device performs exceptionally well in water. Swimmers report that it functions flawlessly even in deep water, and it holds up well to saltwater and chlorine exposure. The ability to withstand submersion makes it an ideal choice for anyone looking to use it in the pool or open water for extended periods.

A small number of users have pointed out that the waterproof feature might not work as effectively in extremely cold water, leading to occasional issues with sound distortion. While this is a rare concern, it’s worth noting for users planning to swim in colder environments.

Comfort & Fit

85%

The bone conduction technology offers an incredibly comfortable fit for extended use, as it does not require in-ear buds or over-ear headphones. Users particularly like that it leaves the ears open, allowing them to hear their surroundings while still enjoying music. Many users report that the device stays securely in place during intense workouts or swimming sessions.

Not all users find the fit equally comfortable. Some mentioned that the device may feel a bit bulky or awkward, especially during longer sessions, and it might not suit all head sizes. A few also pointed out that it can become uncomfortable when worn with swim caps or goggles, which may affect its overall usability.

Ease of Setup

79%

21%

Most users find that the device is relatively easy to set up, especially when transferring music onto the 4GB storage. The intuitive interface allows users to quickly figure out how to load and manage their music files. For those familiar with MP3 players, the setup process is simple and quick.

Some buyers found the setup process to be slightly cumbersome, particularly when syncing or transferring larger music libraries. A few users also encountered difficulties navigating the device’s menus, as the small screen and buttons can be challenging to use during active swimming sessions.

Navigation & Interface

80%

20%

The device’s interface is praised for being simple and functional, allowing swimmers to easily skip tracks or adjust volume. The buttons are responsive and easy to use, even during active movement. Many users appreciate that the controls are straightforward and require minimal effort to navigate.

However, some users report frustration with the interface, particularly when trying to make adjustments mid-swim. The small screen and button placement can make it difficult to perform tasks quickly without pausing the workout, and some users wish for more tactile feedback during use.

Build Quality & Durability

88%

The build quality is generally praised for being sturdy and robust, making it ideal for swimmers and athletes who need reliable, water-resistant gear. Users note that it feels well-constructed and durable, even after frequent exposure to water and rigorous workouts. The waterproof features seem to hold up well, with no significant signs of wear or tear reported.

A few users have raised concerns about the long-term durability of the device’s physical buttons, as some have started to lose sensitivity after extensive use. While this is not a widespread issue, it is something to keep in mind for those looking for a long-lasting device.

Value for Money

82%

18%

For the price, users find that the FINIS Duo offers a good balance of features and performance, especially for those who are primarily interested in a waterproof music player for swimming. The 7-hour battery life and comfortable bone conduction technology make it a competitive option in its price range. Many buyers believe it offers excellent value for its specialized features.

Some buyers feel that the product could offer even better value if it were priced slightly lower. While the features are generally appreciated, a few users think that similar devices from other brands could offer comparable performance at a lower cost.

Connectivity & Compatibility

70%

30%

The device offers solid wired connectivity, ensuring a stable and reliable connection for music playback. Users who prefer to manually load their music without relying on wireless connections appreciate this straightforward approach, which also avoids connection dropouts that can sometimes occur with Bluetooth devices.

However, the wired connectivity may not appeal to users who prefer wireless solutions for ease of use or to avoid dealing with cables while swimming. Some buyers mentioned that the lack of Bluetooth functionality limits compatibility with newer devices, which could be a drawback for users accustomed to wireless technology.

Battery Charging Speed

75%

25%

Several users found the charging speed to be adequate, with the device reaching full charge within a reasonable amount of time. This is convenient for those who need to quickly recharge between swim sessions or workouts.

A few users noted that charging the device can take longer than expected, especially if the battery is very low. Some mentioned that a faster charging time would make the device more practical for frequent use, particularly for those with limited time to recharge between sessions.

Sound Clarity Underwater

90%

The sound clarity underwater is often highlighted as one of the best features, as the bone conduction technology works effectively even when fully submerged. Swimmers report that the sound quality remains clear without the usual distortion that comes with traditional waterproof headphones.

However, a few users mentioned that while the sound clarity is generally excellent, it can occasionally become muffled at very high speeds or in extremely turbulent water. This may not be an issue for all users, but it’s something to consider for those in fast-moving environments.

Long-Term Use Comfort

80%

20%

For many users, the device remains comfortable even after hours of continuous use. The bone conduction technology allows for extended wear without causing discomfort or ear fatigue. This makes it an excellent choice for long-distance swimmers and water sports enthusiasts who need a durable and comfortable solution.

However, some users find that the device can become uncomfortable after prolonged use, especially if worn for multiple hours during intense workouts. A few buyers mentioned that the device could benefit from improved padding or adjustments to enhance overall comfort during long swim sessions.

Portability & Design

84%

Users appreciate the compact and lightweight design, making the device easy to take along for any swim or workout. It’s small enough to fit into a swim bag or carry with ease, and the design is generally considered sleek and functional. The portability is especially valued by athletes who need a simple, convenient way to carry their audio gear.

Some users felt that the design could be more streamlined for even greater portability. A few mentioned that while the device is compact, it could be even lighter, especially when used for long periods. The fit may feel a bit bulky for those who prefer ultra-lightweight equipment.

Suitable for:

The FINIS Duo Underwater MP3 Player 4GB is ideal for swimmers and athletes looking to enjoy music without the discomfort of traditional in-ear or over-ear headphones. Thanks to the bone conduction technology, this device allows users to hear their music clearly while keeping their ears free for safety and awareness, which is especially beneficial during water-based activities. With its waterproof IPX8 rating and 7-hour battery life, it's a great option for long swimming sessions or water workouts. Those who need a compact, no-fuss device to carry and use in challenging environments will find this music player highly suitable, especially fitness enthusiasts and competitive swimmers who value durability and ease of use without additional accessories or wires.

Not suitable for:

However, the FINIS Duo may not be the best choice for users seeking superior audio performance or deep bass. Some users have mentioned that the sound quality, while clear, lacks depth, which may be a drawback for audiophiles or those who prefer rich, immersive sound. Additionally, the device's reliance on wired connectivity may not appeal to those accustomed to wireless audio solutions, such as Bluetooth headphones, particularly for activities outside of swimming. The compact design, while generally praised, can be uncomfortable for some after prolonged use, and users who require more customization or a more refined interface might find it limiting, especially when trying to adjust settings mid-workout.

Specifications

Technology: Uses bone conduction technology to deliver audio through the cheekbones without covering the ears.
Waterproof Rating: Has an IPX8 waterproof rating, allowing it to be fully submerged in water for swimming and water sports.
Battery Life: Offers up to 7 hours of continuous playback on a full charge, ideal for long workout or swim sessions.
Storage Capacity: Includes 4GB of internal storage, capable of holding up to 1000 songs or 60 hours of music.
Audio Formats: Supports MP3 and WMA audio file formats, ensuring compatibility with most music libraries.
Display: Equipped with a 1.77-inch screen for easy navigation and song selection.
Connectivity: Uses wired connectivity to transfer audio files from a computer or other device.
Controls: Features simple physical buttons for play/pause, skip, volume, and power control during use.
Design: Compact and lightweight design, easily attaches to goggles or a headband for secure fit while swimming.
Compatibility: Works with computers and other devices that support MP3 or WMA file transfers through a USB connection.
Dimensions: Measures approximately 3.4 x 2.0 x 0.6 inches, making it small enough for convenient use during physical activities.
Weight: Weighs around 1.2 ounces, offering a lightweight solution for swimmers and athletes.
User Interface: The simple interface allows for easy navigation of music files, even during physical activity.
Charging: Charges via USB connection, ensuring easy recharging between uses.
Included Components: Comes with the MP3 player unit and a clip for securing it to goggles or headbands.

FAQ

The FINIS Duo uses bone conduction technology to transmit sound through your cheekbones, leaving your ears free to hear your surroundings. This is especially beneficial for swimmers as it provides clear audio while maintaining safety during water activities.

To use this device, simply transfer your music files (MP3 or WMA) to the 4GB internal storage. Once connected to the player, clip it onto your goggles or strap it to your head, then press the power button to start listening. The user interface is simple, making it easy to skip tracks or adjust volume during use.

Yes, this device supports MP3 and WMA formats, which are common file types for most music libraries. However, it does not support more complex formats like FLAC or AAC, so you will need to convert these files into a compatible format before loading them onto the player.

The battery life of this device is impressive, offering up to 7 hours of playback on a single charge. This is ideal for long swim sessions or extended workout routines, ensuring your music lasts as long as you do.

Yes, this device has an IPX8 waterproof rating, meaning it is fully submersible in water. It's designed for swimmers and can be used while swimming, even during deep water activities. Just make sure it's properly secured to prevent it from coming loose during your swim.

The player has a simple interface that makes it easy to manage your music files. After connecting the player to your computer, you can drag and drop MP3 or WMA files directly onto the device. Once transferred, you can navigate through your music using simple buttons for play, pause, skip, and volume control.

Yes, this device is not only ideal for swimmers but also for other water sports like kayaking or stand-up paddleboarding. Its waterproof design and secure fit make it a great choice for any water-based activities where you want to enjoy music without disturbing your hearing.

The FINIS Duo is designed to be securely clipped onto your goggles or headband, ensuring it stays in place during most swim styles. However, some users report it may shift during more aggressive movements, so securing it properly is key to keeping it in place during vigorous activity.

While the controls are straightforward, some users have mentioned that adjusting volume or skipping tracks mid-swim can be a bit challenging. The buttons are small and may require a bit of practice to operate efficiently while in the water.

The FINIS Duo is built to withstand the demands of regular water exposure, thanks to its durable construction and IPX8 rating. However, some users suggest that if it is not properly cared for (e.g., if exposed to saltwater without rinsing), it may experience some wear over time.