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Black rectangular Android media player with 4.0 inch touchscreen, 16GB storage, 2000mAh battery

SWOFY M503Pro 16GB 4.0" Android MP3 Player

SKU CH-HBB1-YG3C8

An Android 9.0 media player with a 4.0-inch touchscreen, 16 GB storage, dual-band Wi-Fi, two-way Bluetooth and a 2000 mAh battery rated for 50 hours of music playback

  • Screen diagonal4 in (10.2 cm)
  • Battery typeLithium polymer
  • Product colorBlack-16 GB
  • Octa-core Android 9.0 with 2 GB RAM and 16 GB storage runs apps smoothly
  • Dual-band Wi-Fi on 2.4 GHz and 5 GHz plus two-way Bluetooth keeps streams stable
  • 0-inch IPS touchscreen at 480×800 plays video in multiple formats
  • 2000 mAh battery delivers up to 50 hours music or 5 hours video per charge
  • Micro SD slot accepts cards up to 512 GB for extra media space

Android MP3 player with 16GB storage

The SWOFY M503Pro is a 4.0-inch touchscreen media player running Android 9.0 on an octa-core MTK6750 processor with 2GB RAM. It ships with 16GB internal memory and a card slot accepting up to 512GB microSD cards. The device targets listeners who want streaming apps such as Spotify, Pandora, Amazon Music and Libby alongside local file playback in a compact, metal-bodied unit.

Sustained playback and wireless stability

A 2000mAh lithium-polymer battery delivers up to 50 hours of continuous music playback using wired earbuds or 5 hours of video on a single charge, recharging fully in 2 hours via Type-C. Dual-band WiFi on 2.4GHz and 5GHz provides interference-resistant streaming for online services, while the two-way Bluetooth chip maintains reliable connections to headphones, speakers and car audio during extended sessions.

Check app compatibility and transfer method

Verify that the Android 9.0 operating system supports the specific streaming or e-book apps you require before purchase. Direct song transfers from iPod or iPhone are not supported, so plan to move files via computer, microSD card or wireless download. The IPS display resolution is 480x800 pixels; confirm this meets your video and reading expectations.

How it compares

Measured against everything we stock in MP3 & Digital Music Players, at today’s prices. Recalculated every night.

Price $64.99
Pricier than about 72% of the 517 comparable items (median $46.99).
Screen diagonal 4 in (10.2 cm)
Higher than about 90% of the 342 comparable items (median 1.8 in).

Specifications

Product
Brand nameSWOFY
Product colorBlack-16 GB
Display
Screen diagonal4 in (10.2 cm)
Power
Battery typeLithium polymer

Questions about this item

Does the 2000mAh battery get warm during the 50 hours of music playback?

The 2000mAh cell is rated for 50 hours of continuous music with wired earbuds and recharges fully in 2 hours via the Type-C port, so heat build-up during normal all-day use is minimal.

What headphones or speakers are needed to use the Bluetooth audio?

Any Bluetooth headphones, speakers or car audio system will pair with the two-way Bluetooth chip; no proprietary accessory is required.

Will my existing microSD cards work in the expansion slot?

The slot accepts microSD or TF cards up to 512GB, so cards you already own within that capacity will work immediately.

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