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The Sony ULT Field 5 is currently $191.95 on Amazon, down from $349.99, and that price drop is what finally makes this speaker feel properly positioned.
At full price, it was competing with larger, louder options that offered more raw power for the money. With this discount, it makes more sense as a mid-size outdoor speaker that prioritizes bass, durability, and flexibility. PCMag gave it an “excellent” rating, largely because it delivers deeper low-end sound than most speakers in its size class without becoming unwieldy. This is neither a pocket speaker nor a party cannon. It is designed to strike a balance between portability and sound impact, where both are important.
Physically, the Field 5 feels built for abuse. The rectangular body is wrapped in a tough fabric mesh, with passive radiators on each end and subtle LED lighting around them. Those lights can be customized or turned off entirely. The speaker is rated IP67, so dust is a non-issue, and brief drops into water should not cause panic. On top, the controls are simple and tactile, including a large ULT button that changes how the bass behaves. ULT 1 leans into deeper rumble, while ULT 2 pulls things tighter for a more punchy sound. Bass is the clear strength here. It hits harder than you would expect from a speaker this size. The trade-off is in the highs, which can sound a little thin unless you tweak the EQ.
Connectivity is where the Field 5 shows its versatility. Bluetooth 5.3 supports multipoint connections, and Sony’s Party Connect lets you link multiple compatible speakers, though they all need to be from Sony, since this speaker does not support Auracast. There is also a 3.5mm AUX input, which is becoming rare on portable speakers and is useful for wired sources. Codec support includes SBC, AAC, and LDAC, which is a plus for Android users who care about audio quality. Battery life is rated at up to 25 hours, and fast charging delivers about two hours of playback from a 10-minute charge. The USB-C port can also charge your phone in a pinch.
What do you think so far?
This speaker is still pricey compared to simpler Bluetooth options, and it favors bass over balanced clarity. Still, if you want a rugged speaker with strong low-end and flexible inputs, this deal makes it far easier to justify.
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