
Logitech 985-000809 Jaybird X4 Wireless Sport Bluetooth Headphones
Elevate Your Workout with Jaybird X4 Wireless Sport Headphones Designed for athletes and fitness enthusiasts, the Jaybird X4 Wireless Bluetooth Headphones deliver premium sound and a secure, comfortable fit. With sweat-proof and waterproof protection, these headphones are your perfect companion f...
*Price sourced from Amazon.com. Last updated:Jun 19, 2026.Price and availability are subject to change.
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Overview
Elevate Your Workout with Jaybird X4 Wireless Sport Headphones
Designed for athletes and fitness enthusiasts, the Jaybird X4 Wireless Bluetooth Headphones deliver premium sound and a secure, comfortable fit. With sweat-proof and waterproof protection, these headphones are your perfect companion for any workout, in any weather.
Specifications:
- Brand: Logitech (Jaybird)
- Model: 985-000809
- Type: Wireless Bluetooth Headphones
- Playtime: Up to 8 hours
- Water Resistance: Sweatproof and Waterproof (IPX7)
- Fit: Sport-Fit Plus (Over-ear or Under-ear)
- Ear Tips: Interchangeable Comply Ultra thermo-reactive tips
- Sound Customization: Custom EQ via Jaybird app
- Color: Storm Metallic/Glacier
Key Features
8 HOURS OF PLAYTIME: A single charge provides 8 hours of wireless play time - plenty of power for a full day outside
SWEATPROOF & WATERPROOF: Sweat-proof and waterproof (IPX7) protection for gym and fitness workouts and running in all weather conditions
SPORT-FIT PLUS: Comfortable headphone design runs over your ears for a secure sport fit or under for more relaxed situations
COMFORTABLE FIT: Interchangeable Comply Ultra thermo-reactive tips provide enhanced durability rich sound and conform to individual ear canals for a comfortable secure fit
PREMIUM SOUND: The Jaybird app provides Custom EQ allows athletes to customize sound EQ and save personal settings to the buds
MUSIC & CALLS: Headphones allow users to manage phone calls and control and listen to music without interrupting gym workout
Specifications
Pros & Cons
👍 Pros
- Offers up to 8 hours of playtime on a single charge, suitable for extended outdoor activities.
- Features sweat-proof and waterproof (IPX7) protection, making them ideal for rigorous workouts and various weather conditions.
- Designed with a versatile Sport-Fit Plus, allowing for secure over-ear placement or a more relaxed under-ear fit.
- Includes interchangeable Comply Ultra thermo-reactive tips for enhanced durability, rich sound, and a comfortable, secure fit conforming to individual ear canals.
- Allows for sound customization through the Jaybird app's Custom EQ, where users can save personal settings directly to the earbuds.
👎 Cons
- The 8-hour battery life, while generous, may not be sufficient for ultra-long endurance events without recharging.
- Customization of sound EQ is dependent on using the Jaybird app, which may not appeal to all users.
- The "relaxed situations" fit option may not provide the same level of security as the over-ear sport fit during active movement.
- The thermo-reactive tips are interchangeable, implying they may need to be replaced over time for optimal fit and sound.
- The specific sound signature without EQ customization may not satisfy all listeners by default.