
Sony
Sony NW-WS623 Waterproof Walkman MP3 Player Bluetooth Black
★★★★★
Swim, run, and train with music — the Sony NW-WS623 is a waterproof, wireless Walkman built for active lifestyles.
View on Amazon for pricing
Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.
Notice a mistake? Let Us Know
Overview
Specifications
Brand
Sony
Model
NW-WS623
Storage Capacity
4 GB
Waterproof Rating
IPX5/8
Dustproof Rating
IP6X
Bluetooth
Yes
Battery Life
Up to 12 hours
Quick Charge
3 minutes for 1 hour playback
Operating Temperature
-5°C to 45°C
Water Submersion
Up to 2 meters for 30 minutes
Color
Black
Pros & Cons
👍 Pros
- IPX5/8 waterproof rating allows genuine underwater use up to 2 meters for 30 minutes
- 12-hour battery life with a useful 3-minute quick charge feature for last-minute top-ups
- Built-in 4GB storage means no phone required during workouts or swims
- IP6X dust-proof rating protects against sand and fine debris during outdoor activities
- Operates in temperatures from -5 to 45 degrees Celsius, handling cold water and hot weather
👎 Cons
- 4GB internal storage is limited and cannot be expanded with a memory card
- Bluetooth streaming is unavailable while the player is submerged in water
- The behind-the-neck wraparound design may not fit comfortably under all swim cap styles
- No display screen, so managing playlists and track selection is done entirely by feel with physical buttons
Frequently Asked Questions
Can I actually swim with the Sony NW-WS623 submerged in water?
Yes, the NW-WS623 is rated IPX5/8 waterproof and can be submerged up to 2 meters for 30 minutes, making it suitable for swimming in pools and open water.
How much music can the 4GB internal storage hold?
The 4GB storage holds approximately 900 songs in standard MP3 format (128kbps), so you can load a solid playlist without needing a phone or external device.
Does the Bluetooth work while swimming?
No, Bluetooth signals do not transmit well through water. While swimming, you'll need to use music stored on the player's built-in 4GB memory. Bluetooth streaming works normally during land-based activities.
How long does the battery last on a full charge?
The NW-WS623 provides up to 12 hours of playback on a full charge, and a 3-minute quick charge gives you approximately 1 hour of listening time.