Harman Kardon Onyx Studio 5 vs Zealot S95

Last updated: August 18, 2026

Short answer: the Harman Kardon Onyx Studio 5 for better sound quality, the Zealot S95 for the lower price. The Harman Kardon Onyx Studio 5 ranks #19 of 73 boombox speakers at $499.99. The Zealot S95 ranks #24 at $157.41, $342.58 cheaper.

What the Harman Kardon Onyx Studio 5 offers: Elegant circular design with carrying handle. Watch for: Warm sound with boosted bass.

What the Zealot S95 gets right: A good value for the boombox class. The catch: A little rolled off up top and not that balanced through the rest of the range.

Buy the Harman Kardon Onyx Studio 5 if sound quality matters more than the price. Buy the Zealot S95 if the price matters more than sound quality.

Harman Kardon Onyx Studio 5 vs Zealot S95

Specifications Side By Side

Harman Kardon Onyx Studio 5 Zealot S95
Price$499.99$157.41
Ranked#19 of 73 in Boombox Size Portable Bluetooth Speakers#24 of 73 in Boombox Size Portable Bluetooth Speakers
Aux InputYesYes
Battery Life8 hours (Manufacturer specified)12 hours (Manufacturer specified)
IP RatingIPX7IPX6
Party ModeYes (Wireless Dual Sound)Yes (PartyAdd up to 100 speakers)
Power InputDC Barrel Connector (19V/2.1A)USB-C
StereoPartially (1 woofer)Yes
OmnidirectionalNoNo
TWSYes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/)Yes
Weight6.6 lbs / 3 kg11.3 lbs / 5.11 kg
Bluetooth CodecsSBCSBC
AppNoNo
EQNoYes (multiple modes)
Power BankNoYes (USB-A, 5V/2A)
USB PlaybackNoYes
Built in MicrophoneYesNo
Output Power50W120W
Dimensions11.3" x 11.3" (285.8 x 285.8 mm)14.1" x 9.6" x 6.6" (358 x 243 x 167 mm)
Drivers2x 75mm woofers + 2x 20mm tweeters130W subwoofer + dual drivers
Digital Aux InputNoNo
Bass Extension (-10dB)-45Hz
MicroSD Playback-Yes

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

Harman Kardon Onyx Studio 5: $499.99 Amazon

Harman Kardon Onyx Studio 5 ranking card

Pros: Elegant circular design with carrying handle. Bass-heavy with balanced mids and highs. Rechargeable Li-ion battery rated 7-8 hours at 40-50% volume.

Cons: Warm sound with boosted bass. 8 hour battery at medium volume. Not at loud as others.

AppNo
Aux InputYes
Battery Life8 hours (Manufacturer specified)
Bluetooth CodecsSBC
Built in MicrophoneYes
Digital Aux InputNo
Dimensions11.3" x 11.3" (285.8 x 285.8 mm)
Drivers2x 75mm woofers + 2x 20mm tweeters
EQNo
IP RatingIPX7
OmnidirectionalNo
Output Power50W
Party ModeYes (Wireless Dual Sound)
Power BankNo
Power InputDC Barrel Connector (19V/2.1A)
StereoPartially (1 woofer)
TWSYes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/)
USB PlaybackNo
Weight6.6 lbs / 3 kg

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Zealot S95: $157.41 Amazon Aliexpress

Zealot S95 ranking card

Pros: A good value for the boombox class. Appears to be the same internals as the ZE01. Bigger case and goes deeper than the ZE01

Cons: A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers.

AppNo
Aux InputYes
Bass Extension (-10dB)45Hz
Battery Life12 hours (Manufacturer specified)
Bluetooth CodecsSBC
Built in MicrophoneNo
Digital Aux InputNo
Dimensions14.1" x 9.6" x 6.6" (358 x 243 x 167 mm)
Drivers130W subwoofer + dual drivers
EQYes (multiple modes)
IP RatingIPX6
MicroSD PlaybackYes
OmnidirectionalNo
Output Power120W
Party ModeYes (PartyAdd up to 100 speakers)
Power BankYes (USB-A, 5V/2A)
Power InputUSB-C
StereoYes
TWSYes
USB PlaybackYes
Weight11.3 lbs / 5.11 kg

As an eBay Partner, we may be compensated if you make a purchase.