Sennheiser PMX 684i Fitness Workout Sports Earbuds : A Lightweight Sports Earbud that Packs a Punch

Published on June 3, 2023, 9:20 a.m.

If you’re an active fitness buff looking for a solid pair of sports earbuds, the Sennheiser PMX 684i should be on your radar. This lightweight wireless earbud is specially designed for the modern athlete. Let’s dig into the nitty-gritty details in this review.

 Sennheiser PMX 684i Earbuds

Key Features:

  • Ultra-lightweight neckband design
  • Sweat and water resistant
  • In-ear secure fit
  • Inline smart remote and microphone
  • Open, natural sound tuned for sports

 Sennheiser PMX 684i Earbuds

Design and Features

The Sennheiser PMX 684i Earbuds features an ultra-lightweight neckband design that stays secure during your workout, making it perfect for running, biking, skating, and hitting the gym. The sweat and water resistant construction holds up to intense activity and can even be rinsed clean after use.

The in-ear design provides a snug ergonomic fit so you don’t have to worry about earbuds falling out mid-sprint. The angled position also allows you to maintain awareness of your surroundings, an important safety feature for outdoor runners and cyclists.

An inline smart remote gives you convenient control over music playback and phone calls, with volume adjustment and a built-in mic.

Sound Quality

With Sennheiser’s pedigree for premium sound, it’s no surprise that the Sennheiser PMX 684i Earbuds delivers excellent audio performance. The open, natural sound is acoustically tuned to deliver robust stereo separation and thumping bass that will amp up your workout.

The earbuds produce clear highs and a strong bass response without compromising the overall audio balance. You’ll get immersive sound that makes your music come alive.

Performance and Comfort

In terms of reliability, the Sennheiser PMX 684i Earbuds live up to rigorous use. The construction is able to withstand shock and minimize wear and tear. Users praise the secure fit and comfort for extended wear, with some wearing them for hours without fatigue.

The angled earbud position allows situational awareness while also piping sound directly into your ear canals. Whether you’re hitting a HIIT class or just going for a jog, the Sennheiser PMX 684i Earbuds has the comfort and performance to keep up.

Battery Life

The Sennheiser PMX 684i Earbuds uses a wired design so no battery is required. This can be beneficial for those who don’t want to worry about charging wireless earbuds.

Connectivity

These earbuds connect via a 3.5mm headphone jack so are compatible with most smartphones, MP3 players, laptops, and audio devices with a headphone port. An adaptor would be needed for USB-C only devices.

Water Resistance

The sweat and water resistant construction holds up well for exercise and can be rinsed clean after workouts. However, the Sennheiser PMX 684i Earbuds does not have an official IP water rating.

Use Cases:

The Sennheiser PMX 684i Earbuds is optimized for people with active lifestyles looking for durable wireless earbuds. It shines for fitness activities like:

  • Gym workouts: The secure in-ear fit means you can jump, squat, and lift without worrying about earbuds falling out.

  • Running and jogging: The lightweight neckband stays put mile after mile. Hear your tunes and ambient sounds for safety.

  • Cycling: Enjoy your pumping playlist and take calls while keeping your hands on the handlebars.

  • HIIT classes: Get motivated by energizing music as you push through high-intensity intervals.

  • Skating: Glide around the rink with clear sound and no ear fatigue.

User Reviews:

The Sennheiser PMX 684i Earbuds have received largely positive reviews, with an average rating of 4.3 out of 5 stars on Amazon based on over 200 customer reviews.

The vast majority of users praise the lightweight and comfortable fit of these earbuds. The angled earbud design allows the headphones to nestle securely in the ear without feeling heavy or bulky. The flexible neckband is adjustable and doesn’t cause irritation. Even during intense workouts and long listening sessions, most find the Sennheiser PMX 684i Earbuds remain comfortable in the ears.

In terms of sound quality, reviewers consistently highlight the dynamic and motivating audio performance. The acoustic tuning and Sennheiser engineering results in earbuds that deliver booming bass, sparkling highs, and clear mids. Many describe an immersive stereo soundstage that makes music come alive, ideal for energizing workouts.

The inline remote is convenient for controlling music and calls on the go. Users like having the ability to adjust volume, skip tracks, and take calls without having to grab their phone during a run. However, some note the inline buttons can be tricky to decipher by feel alone. Also, full functionality may not work for non-Apple devices.

Durability is a mixed bag in user reviews. Many are pleasantly surprised by how well these sport earbuds hold up to sweat and exercise over time. But others report issues with the inline remote malfunctioning or connections failing, typically after a year or more of frequent use. Careful handling may improve longevity.

When it comes to value, reviewers agree these earbuds punch above their weight given the sub-$100 price point. The Sennheiser audio quality rivals much pricier sport earphones. For budget-minded fitness enthusiasts, the Sennheiser PMX 684i Earbuds deliver impressive performance without breaking the bank.

Overall, buyers praise the secure fit, motivational sound, and lightweight comfort that makes the Sennheiser PMX 684i Earbuds well-suited for any active lifestyle. These wireless earbuds meet expectations for quality sport audio in an accessibly-priced package.

Pros:

  • Lightweight and comfortable fit
  • Sweat/water resistant for sports
  • Great sound quality with robust bass
  • Inline controls for convenience
  • Situational awareness for safety

Cons:

  • Durability issues over long term use
  • Inline controls may not work fully for non-Apple devices
  • Weak points at wire connections

Value:

With premium Sennheiser sound in a sport-friendly design, the Sennheiser PMX 684i Earbuds punches above its sub-$100 price point. The audio performance is on par with more expensive wireless earbuds. For athletes and gym buffs who want great sound without breaking the bank, these earbuds offer excellent value.

Conclusion

With sweat-proof durability, stellar sound quality, and a lightweight neckband design, the Sennheiser PMX 684i Earbuds checks all the boxes for fitness-focused earbuds. Audiophiles who demand great sound for their active lifestyles will find these earbuds to be a smart choice. Just be wary of potential issues with the inline controls and wire connections over time. Overall, the Sennheiser PMX 684i Earbuds punches above its weight for sub-$100 wireless earbuds.

Frequently Asked Questions

What makes the Sennheiser PMX 684i Fitness Workout Sports Earbuds stand out for athletes?

The Sennheiser PMX 684i earbuds are specifically designed to cater to the needs of modern athletes. They offer superb sound quality while remaining lightweight and secure during exercise. The ultralight neckband ensures a comfortable fit, making them perfect for workouts, biking, skating, and running.

Are the Sennheiser PMX 684i earbuds sweat and water resistant?

Yes, these earbuds are sweat and water resistant, making them suitable for use during intense workouts and outdoor activities. They have been tested extensively for durability and reliability, ensuring they can withstand tough conditions.

Can the Sennheiser PMX 684i earbuds be used for making phone calls?

Yes, these earbuds come with a smart remote and microphone, allowing you to control your music and take phone calls. However, it’s important to note that the inline controls are optimized for Apple devices.

How do the Sennheiser PMX 684i earbuds ensure safety for outdoor activities?

The in-ear design provides a secure fit, so you can feel confident that the earbuds won’t fall out even during intense workouts. Additionally, they feature passive, noise isolating technology, allowing you to make calls and enjoy music while remaining aware of your surroundings, which is crucial for bikers or runners on the street.

Are replacement parts available for the Sennheiser PMX 684i earbuds?

Yes, the earbuds come with a storage pouch, ear tips, cable with integrated remote and microphone, cable clip, user manual, and warranty information. Additionally, you can purchase replacement foam earpiece covers separately for long-term use.

Tips

  • Use the provided cable clip to secure the earbud cable during workouts to prevent tangling and ensure freedom of movement.
  • To extend the lifespan of the earbuds, rinse them clean after use under running water and allow them to air dry.
  • Consider purchasing a pack of replacement foam earpiece covers to ensure continued comfort and hygiene.

Knowledge

  1. The Sennheiser PMX 684i earbuds are compatible with any device with a 3.5mm headphone socket for audio, including iPod, iPhone, and other portable music/video players.
  2. They are optimized for Apple users, featuring inline controls that work seamlessly with Apple devices for volume control and music playback.
  3. Sennheiser offers a 2-year international warranty for these earbuds, providing assurance of quality and durability.
  4. These earbuds have been extensively tested in the field for ergonomic fit, durability, and reliability, meeting the rigorous demands of athletes.

Specifications:

  • Weight: 7 oz
  • Dimensions: 3.94 x 3.94 x 1.97 inches
  • Connectivity: Wired 3.5mm headphone jack
  • Sweat and water resistant design
  • Manufacturer: Sennheiser
  • Model number: 684i
  • Release date: July 2017

Box Includes:

  • Earbuds with integrated neckband
  • Eartips/earbuds in various sizes
  • Cable with inline remote and microphone
  • Cable clip
  • Storage pouch
  • User manual

How to Use:

  1. Choose the eartips that fit most comfortably and securely in your ears.
  2. Put the earbuds in and adjust the neckband to rest comfortably around your neck.
  3. Connect the 3.5mm headphone plug to your phone, MP3 player, or other audio device.
  4. Use the inline remote to control volume, playback, and phone calls.
  5. After workouts, rinse the earbuds under fresh water to clean sweat and grime.