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Zealot S78 Review | 130 Data compared

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  • Avg. price in UK: ~£120
  • Avg. price in US: ~$150
  • Audio output power: ?
  • Battery life: 40 hours
  • IP rating: ?
  • Bluetooth version: 5.2
  • Weight: 4400 g

Zealot S78 review. Compare 130 technical specifications and user reviews to see how this product ranks in the Portable Speakers category and whether it is worth buying.

8.5

Overall score

What it is: An overall evaluation of products in the Portable Speakers category, based on technical analysis and user reviews.

When it matters: When you need a quick reference for identifying the best products in the Portable Speakers category.

Score components:

80.0%

8.3

Technical Score

20.0%

9.4

User score

Excellent
8.3

Technical Score

What it is: An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.

When it matters: When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.

Score components:

32.0%

9.1

Audio

20.0%

9.0

Battery

18.0%

9.0

Durability

16.0%

6.3

Connectivity

8.0%

7.0

Controls

3.0%

4.9

Design

3.0%

6.3

Smart features

Excellent
9.4

User score

What it is: A rating that combines user reviews with the total review volume for products in the Portable Speakers category.

When it matters: When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

9.1

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.5
(263)
amazon
4.5
(254)
amazon
4.8
(10)
United States
Amazon_logo.png
4.6
(286)
Amazon_logo.png
4.1
(4)

(Reviews last updated: August 2026)

Exceptional
  • 8.6
    Outdoor durability

    Score components:

    40.0%

    10

    Water resistance

    25.0%

    ?

    IP rating

    20.0%

    5.3

    Weight

    15.0%

    10

    Battery life

  • 8.4
    Powerful sound

    Score components:

    45.0%

    ?

    Audio output power

    25.0%

    10

    Battery life

    15.0%

    5.3

    Weight

    15.0%

    10

    Party mode

  • 6.4
    Home listening

    Score components:

    35.0%

    ?

    Multi-room support

    30.0%

    4.0

    Wi-Fi connectivity

    20.0%

    ?

    Audio output power

    15.0%

    5.3

    Weight

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Best prices in UK

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Zealot S78 is a heavy-duty portable Bluetooth 5.2 speaker featuring a quad-driver system composed of two woofers and two tweeters that output a powerful 100W to 120W of audio power. Its standout characteristic is an industry-leading 24,000mAh battery that delivers up to 40 hours of playtime and doubles as a functional power bank to charge mobile devices. Main pros include a rugged IPX6/IPX7 waterproof construction, multiple playback options via USB, AUX, and TF card, onboard EQ customization modes, dynamic music-syncing RGB light rings, and True Wireless Stereo pairing capable of linking with multiple units. However, notable cons include audible sound distortion or a lack of tight low-end bass control at maximum volume levels, sub-optimal physical control indicators, and a heavy 4.4 kg (9.7 lbs) footprint that can limit its overall portability.

Technical Specifications of portable speaker Zealot S78

Technical Score

What it is: An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.

When it matters: When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.

Score components:

32.0%

9.1

Audio

20.0%

9.0

Battery

18.0%

9.0

Durability

16.0%

6.3

Connectivity

8.0%

7.0

Controls

3.0%

4.9

Design

3.0%

6.3

Smart features

8.3
Zealot S78 has a technical score of 8.26 points, which is higher than 99.3% of products in this category.
User score

What it is: A rating that combines user reviews with the total review volume for products in the Portable Speakers category.

When it matters: When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

9.1

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.5
(263)
amazon
4.5
(254)
amazon
4.8
(10)
United States
Amazon_logo.png
4.6
(286)
Amazon_logo.png
4.1
(4)

(Reviews last updated: August 2026)

9.4
Zealot S78 has a user score of 9.37 points, which is higher than 87.8% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by products in the Portable Speakers category.
When it matters: When you prefer products in the Portable Speakers category that have been chosen and reviewed by many other buyers.
10
Zealot S78 has a popularity of 10 points, which is higher than 66.6% of products in this category.
Ratio quality/price

What it is: An indicator that combines the overall score of products in the Portable Speakers category with their prices.

When it matters: When you are comparing products in the Portable Speakers category and want a good balance between quality and price.

Score components:

60.0%

8.5

Overall score

40.0%

9.9

Price

8.9
Zealot S78 has a quality-to-price ratio of 8.9 points, which is higher than 99.8% of products in this category.
Audio output power
What it is: The maximum continuous power the speaker system can deliver.
When it matters: When you need enough output to fill a larger or noisier space.

Importance: HIGH

Good value: >= 20 W

?
Driver unit size
What it is: The diameter of each main speaker driver.
When it matters: When the size of the main driver influences bass reach and output capability.

Importance: HIGH

Good value: >= 50 mm

?
Number of drivers
What it is: The total number of speaker drivers built into the unit.
When it matters: When fuller driver arrays and broader sound coverage matter.

Importance: MEDIUM

Good value: >= 2

4
Zealot S78 has 4 drivers, which is more than 81.7% of portable speakers and equal to the number in 11.9% of portable speakers.
Acoustic drivers: 4.
Frequency response tolerance
What it is: The allowed deviation around the stated frequency response curve.
When it matters: When a flatter and more accurate frequency response matters.

Importance: MEDIUM

Good value: <= 3 dB

?
Lowest frequency
What it is: The lowest audible frequency the speaker can reproduce.
When it matters: When deeper bass extension matters.

Importance: HIGH

Good value: <= 60 Hz

20.00 Hz
Zealot S78 has a lowest frequency of 20.00 Hz which is lower than that of 84.8% of portable speakers and equal to that of 14% of portable speakers.
Lower frequency-response endpoint: 20.00 Hz.
Show more
Bluetooth connectivity
What it is: Indicates whether the speaker can receive audio over Bluetooth.
When it matters: When wireless playback from phones, tablets, or computers matters.

Importance: MEDIUM

Good value: yes

yes
Zealot S78 supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
What it is: The generation of Bluetooth supported by the speaker hardware.
When it matters: When compatibility and efficiency with newer Bluetooth devices matter.

Importance: LOW

Good value: >= 5.0

5.2
Zealot S78 supports Bluetooth version 5.2 which is newer than that of 75.8% of portable speakers and equal to that of 2.9% of portable speakers.
Bluetooth version: 5.2.
Maximum Bluetooth range
What it is: The farthest distance at which the Bluetooth link can remain usable.
When it matters: When the source device may be far from the speaker.

Importance: MEDIUM

Good value: >= 10 m

10.00 m
Zealot S78 has a maximum Bluetooth range of 10.00 m which is longer than that of 4.3% of portable speakers and equal to that of 70.2% of portable speakers.
Maximum Bluetooth range: 10.00 m.
Bluetooth profiles supported
What it is: The Bluetooth operating profiles available for playback, control, or calls.
When it matters: When Bluetooth playback, control, and call compatibility depend on specific profiles.

Importance: LOW

?
Bluetooth LE Audio
What it is: Shows whether the speaker supports the low-energy Bluetooth audio standard.
When it matters: When newer low-power Bluetooth audio features matter.

Importance: LOW

Good value: yes

no
Zealot S78 does not support Bluetooth LE Audio. 2.5% of portable speakers offer this feature.
Show more
Battery life
What it is: The playback time available from one full battery charge.
When it matters: When you need longer playback between charges.

Importance: HIGH

Good value: >= 20 h

40 hours
Zealot S78 has a battery life of 40 hours which is longer than that of 99% of portable speakers and equal to that of 0.5% of portable speakers.
Battery capacity
What it is: The amount of electrical charge the internal battery can store.
When it matters: When longer untethered playback or power-bank use needs more stored charge.

Importance: HIGH

Good value: >= 5000 mAh

24,000 mAh
Zealot S78 has a battery capacity of 24,000 mAh which is larger than that of 99.7% of portable speakers.
Charging time
What it is: The time needed to recharge the battery fully.
When it matters: When the speaker needs to be ready again quickly.

Importance: MEDIUM

Good value: <= 4 h

2 hours
Zealot S78 has a charging time of 2 hours which is shorter than that of 72.9% of portable speakers and equal to that of 22.6% of portable speakers.
Maximum charging input power
What it is: The maximum charging power the speaker can accept from a compatible power source.
When it matters: When faster charging requires the speaker to accept more input power.

Importance: LOW

Good value: >= 20 W

10 W
Zealot S78 has a maximum charging input power of 10 W which is higher than that of 44.3% of portable speakers and equal to that of 26.1% of portable speakers.
Built-in rechargeable battery
What it is: Indicates whether the speaker uses a battery that can be recharged.
When it matters: When portable use without disposable batteries or continuous mains power matters.

Importance: LOW

Good value: yes

yes
Zealot S78 has a built-in rechargeable battery. 18.7% of portable speakers offer this feature.
Show more
IP rating
What it is: The ingress protection code for dust and water resistance.
When it matters: When dust and water protection need to match the intended environment.

Importance: HIGH

Good value: IP67+

?
Water resistance
What it is: Indicates whether the enclosure can resist water exposure.
When it matters: When the speaker may be used near pools, rain, or splashes.

Importance: MEDIUM

Good value: yes

yes
Zealot S78 is water resistant. 38.3% of portable speakers offer this feature.
Dust resistance
What it is: Shows whether the enclosure is protected against dust ingress.
When it matters: When the speaker may be exposed to sand, soil, or dusty environments.

Importance: MEDIUM

Good value: yes

yes
Zealot S78 is dust resistant. 48.6% of portable speakers offer this feature.
Waterproof depth rating
What it is: The maximum water depth the speaker is rated to withstand.
When it matters: When the speaker may be submerged or used very close to water.

Importance: MEDIUM

Good value: >= 1 m

1 m
Zealot S78 has a waterproof depth rating of 1 m which is deeper than that of 52.6% of portable speakers and equal to that of 47.4% of portable speakers.
Drop resistance
What it is: Indicates whether the housing is designed to survive accidental drops.
When it matters: When the speaker may be bumped or suffer an accidental fall during outdoor or travel use.

Importance: LOW

Good value: yes

yes
Zealot S78 resists accidental impacts. 67.3% of portable speakers offer this feature.
Show more
On-device controls placement
What it is: The physical area of the speaker where its controls are located.
When it matters: When you want controls that are easy to reach in the speaker intended placement.

Importance: LOW

top
Touchscreen
What it is: Indicates whether a touch-sensitive screen is integrated.
When it matters: When direct visual control is more convenient than buttons or an app.

Importance: LOW

Good value: yes

no
Zealot S78 does not have a touchscreen. 0.3% of portable speakers offer this feature.
The speaker does not have an integrated touchscreen.
Smartphone app control
What it is: Shows whether the speaker can be controlled from a phone app.
When it matters: When remote settings, updates, or sound adjustment from a phone matter.

Importance: LOW

Good value: yes

no
Zealot S78 does not support smartphone app control. 54% of portable speakers offer this feature.
No compatible mobile app for speaker control.
Remote control
What it is: Indicates whether a dedicated remote control is supplied or supported.
When it matters: When you want to control playback from across the room.

Importance: LOW

Good value: yes

no
Zealot S78 does not include a remote control. 15% of portable speakers offer this feature.
No dedicated remote control is documented.
Fast pairing
What it is: Shows whether setup with compatible devices can be completed more quickly.
When it matters: When quick setup with compatible devices matters.

Importance: LOW

Good value: yes

no
Zealot S78 does not support fast pairing. 22.5% of portable speakers offer this feature.
No qualifying fast-pair capability; initial pairing is manual or standard.
Show more
Weight
What it is: The total mass of the portable speaker.
When it matters: When carrying the speaker frequently or packing light matters.

Importance: LOW

Good value: <= 1000 g

4,400 g
Zealot S78 weighs 4,400 g which is heavier than that of 87.3% of portable speakers.
Height
What it is: The vertical external dimension of the speaker body.
When it matters: When the speaker must fit beneath shelves or in a compact bag.

Importance: LOW

Good value: <= 20 cm

18.5 cm
Zealot S78 has a height of 18.5 cm which is taller than that of 71.1% of portable speakers and equal to that of 0.8% of portable speakers.
Width
What it is: The side-to-side external dimension of the speaker body.
When it matters: When the speaker must fit a narrow shelf, bag, or tabletop.

Importance: LOW

Good value: <= 25 cm

41 cm
Zealot S78 has a width of 41 cm which is wider than that of 93.3% of portable speakers and equal to that of 0.4% of portable speakers.
Depth
What it is: The front-to-back depth of the speaker housing.
When it matters: When the speaker should take up less front-to-back space.

Importance: LOW

Good value: <= 10 cm

16.7 cm
Zealot S78 has a depth of 16.7 cm which is deeper than that of 84.4% of portable speakers.
Carry options
What it is: The available ways to carry, hang, or attach the speaker.
When it matters: When a handle, strap, or attachment point changes how you carry the speaker.

Importance: LOW

strap/handle/shoulder
Show more
Companion app name
What it is: The official app used to control settings and functions of the speaker.
When it matters: When app compatibility and the available control features depend on the official app.

Importance: LOW

?
Firmware updates
What it is: Indicates whether the speaker can receive firmware revisions after purchase.
When it matters: When post-purchase fixes and feature improvements matter.

Importance: LOW

Good value: yes

no
Zealot S78 does not support firmware updates. 47.2% of portable speakers offer this feature.
No supported user-accessible firmware update path.
Firmware update method
What it is: The path used to install firmware updates on the speaker.
When it matters: When the convenience and reliability of installing updates matters.

Importance: LOW

?
Voice assistant support
What it is: Indicates whether the speaker can work with supported voice assistants.
When it matters: When hands-free control through a compatible assistant matters.

Importance: LOW

Good value: yes

no
Zealot S78 does not support voice assistants. 26.5% of portable speakers offer this feature.
No direct supported voice-assistant control.
Spotify Connect
What it is: Shows whether Spotify can stream directly to the speaker over the network.
When it matters: When Spotify should stream directly without keeping phone audio active.

Importance: LOW

Good value: yes

no
Zealot S78 does not support Spotify Connect. 10.8% of portable speakers offer this feature.
Does not support native Spotify Connect.
Show more

Zealot S78 vs the average portable speaker

  • 28 hours longer battery life
    Zealot S78 has a longer battery life than the average portable speaker (40 hours vs 12 hours).
    What it is: The playback time available from one full battery charge.
    When it matters: When you need longer playback between charges.

    Importance: HIGH

    Good value: >= 20 h

    Zealot S78 has a longer battery life than the average portable speaker (40 hours vs 12 hours).40 hours vs 12 hours
  • 21,400 mAh more battery capacity
    Zealot S78 has a larger battery capacity than the average portable speaker (24,000 mAh vs 2,600 mAh).
    What it is: The amount of electrical charge the internal battery can store.
    When it matters: When longer untethered playback or power-bank use needs more stored charge.

    Importance: HIGH

    Good value: >= 5000 mAh

    Zealot S78 has a larger battery capacity than the average portable speaker (24,000 mAh vs 2,600 mAh).24000 mAh vs 2600 mAh
  • 1 m deeper waterproof rating
    Zealot S78 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
    What it is: The maximum water depth the speaker is rated to withstand.
    When it matters: When the speaker may be submerged or used very close to water.

    Importance: MEDIUM

    Good value: >= 1 m

    Zealot S78 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).1 m vs 0 m
  • 40 Hz deeper bass extension
    Zealot S78 has deeper bass extension than the average portable speaker (20 Hz vs 60.00 Hz).
    Lower frequency-response endpoint: 20.00 Hz.
    What it is: The lowest audible frequency the speaker can reproduce.
    When it matters: When deeper bass extension matters.

    Importance: HIGH

    Good value: <= 60 Hz

    Zealot S78 has deeper bass extension than the average portable speaker (20 Hz vs 60.00 Hz).20.00 Hz vs 60.00 Hz
  • 2 more speaker drivers
    Zealot S78 has more speaker drivers than the average portable speaker (4 vs 2).
    Acoustic drivers: 4.
    What it is: The total number of speaker drivers built into the unit.
    When it matters: When fuller driver arrays and broader sound coverage matter.

    Importance: MEDIUM

    Good value: >= 2

    Zealot S78 has more speaker drivers than the average portable speaker (4 vs 2).4 vs 2
  • Provides 360-degree sound
    Zealot S78 provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
    Provides omnidirectional 360° sound radiation.
    What it is: Indicates whether sound is spread evenly in all directions.
    When it matters: When even sound coverage around the speaker matters.

    Importance: MEDIUM

    Good value: yes

    Zealot S78 provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
  • Has a noise-canceling microphone
    Zealot S78 has a noise-canceling microphone, while the average portable speaker does not have a noise-canceling microphone.
    Uses microphone noise/echo cancellation for calls or voice.
    What it is: Indicates whether the microphones can reduce surrounding noise during capture.
    When it matters: When calls or voice commands must remain clear around background noise.

    Importance: LOW

    Good value: yes

    Zealot S78 has a noise-canceling microphone, while the average portable speaker does not have a noise-canceling microphone.
  • 1 hours shorter charging time
    Zealot S78 has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
    What it is: The time needed to recharge the battery fully.
    When it matters: When the speaker needs to be ready again quickly.

    Importance: MEDIUM

    Good value: <= 4 h

    Zealot S78 has a shorter charging time than the average portable speaker (2 hours vs 3 hours).2 hours vs 3 hours
  • 40 Hz deeper bass extension
    Zealot S78 has deeper bass extension than the average portable speaker (20 Hz vs 60.00 Hz).
  • 2 more speaker drivers
    Zealot S78 has more speaker drivers than the average portable speaker (4 vs 2).
  • Provides 360-degree sound
    Zealot S78 provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
  • Has a noise-canceling microphone
    Zealot S78 has a noise-canceling microphone, while the average portable speaker does not have a noise-canceling microphone.
  • Has built-in stereo speakers
    Zealot S78 has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
  • 1 more USB ports
    Zealot S78 has more USB ports than the average portable speaker (2 vs 1).
  • Has a USB Type-C port
    Zealot S78 has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
  • Has an external memory card slot
    Zealot S78 has an external memory card slot, while the average portable speaker does not have an external memory card slot.
  • 0.2 Bluetooth levels newer
    Zealot S78 has a newer Bluetooth version than the average portable speaker (5.2 vs 5.0).
  • 28 hours longer battery life
    Zealot S78 has a longer battery life than the average portable speaker (40 hours vs 12 hours).
  • 21,400 mAh more battery capacity
    Zealot S78 has a larger battery capacity than the average portable speaker (24,000 mAh vs 2,600 mAh).
  • 1 hours shorter charging time
    Zealot S78 has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
  • Has a power bank function
    Zealot S78 has a power bank function, while the average portable speaker does not have a power bank function.
  • 1 m deeper waterproof rating
    Zealot S78 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
  • Resists accidental impacts
    Zealot S78 resists accidental impacts, while the average portable speaker lacks an impact-resistance rating.
  • 20 °C higher maximum operating temperature
    Zealot S78 has a higher maximum operating temperature than the average portable speaker (60 °C vs 40 °C).
  • Has an equalizer
    Zealot S78 has an equalizer, while the average portable speaker does not have an equalizer.
  • 3 more EQ presets
    Zealot S78 has more EQ presets than the average portable speaker (3 vs 0).
  • Supports party mode
    Zealot S78 supports party mode, while the average portable speaker does not support party mode.
  • Has an FM radio
    Zealot S78 has an FM radio, while the average portable speaker does not have an FM radio.

Total
Overall
Audio
Connectivity
Battery
Durability
Controls
  • 1 fewer multipoint connections
    Zealot S78 has fewer multipoint connections than the average portable speaker (0 vs 1).
    Simultaneous Bluetooth devices: 0.
  • Does not support smartphone app control
    Zealot S78 does not support smartphone app control, while the average portable speaker supports smartphone app control.
    No compatible mobile app for speaker control.
  • 3,600 g heavier
    Zealot S78 is heavier than the average portable speaker (4,400 g vs 800 g).
  • 22.9 cm wider
    Zealot S78 is wider than the average portable speaker (41 cm vs 18.1 cm).
  • 8.4 cm deeper
    Zealot S78 is deeper than the average portable speaker (16.7 cm vs 8.3 cm).
  • 6.1 cm taller
    Zealot S78 is taller than the average portable speaker (18.5 cm vs 12.4 cm).
  • Does not support smartphone app control
    Zealot S78 does not support smartphone app control, while the average portable speaker supports smartphone app control.
    No compatible mobile app for speaker control.
    What it is: Shows whether the speaker can be controlled from a phone app.
    When it matters: When remote settings, updates, or sound adjustment from a phone matter.

    Importance: LOW

    Good value: yes

    Zealot S78 does not support smartphone app control, while the average portable speaker supports smartphone app control.
  • 3,600 g heavier
    Zealot S78 is heavier than the average portable speaker (4,400 g vs 800 g).
    What it is: The total mass of the portable speaker.
    When it matters: When carrying the speaker frequently or packing light matters.

    Importance: LOW

    Good value: <= 1000 g

    Zealot S78 is heavier than the average portable speaker (4,400 g vs 800 g).4400 g vs 800 g
  • 1 fewer multipoint connections
    Zealot S78 has fewer multipoint connections than the average portable speaker (0 vs 1).
    Simultaneous Bluetooth devices: 0.
    What it is: The number of source devices that can stay connected at the same time.
    When it matters: When switching between several connected source devices matters.

    Importance: MEDIUM

    Good value: >= 2

    Zealot S78 has fewer multipoint connections than the average portable speaker (0 vs 1).0 vs 1
  • 22.9 cm wider
    Zealot S78 is wider than the average portable speaker (41 cm vs 18.1 cm).
    What it is: The side-to-side external dimension of the speaker body.
    When it matters: When the speaker must fit a narrow shelf, bag, or tabletop.

    Importance: LOW

    Good value: <= 25 cm

    Zealot S78 is wider than the average portable speaker (41 cm vs 18.1 cm).41 cm vs 18.1 cm
  • 8.4 cm deeper
    Zealot S78 is deeper than the average portable speaker (16.7 cm vs 8.3 cm).
    What it is: The front-to-back depth of the speaker housing.
    When it matters: When the speaker should take up less front-to-back space.

    Importance: LOW

    Good value: <= 10 cm

    Zealot S78 is deeper than the average portable speaker (16.7 cm vs 8.3 cm).16.7 cm vs 8.3 cm
  • 6.1 cm taller
    Zealot S78 is taller than the average portable speaker (18.5 cm vs 12.4 cm).
    What it is: The vertical external dimension of the speaker body.
    When it matters: When the speaker must fit beneath shelves or in a compact bag.

    Importance: LOW

    Good value: <= 20 cm

    Zealot S78 is taller than the average portable speaker (18.5 cm vs 12.4 cm).18.5 cm vs 12.4 cm
Total
Connectivity
Controls
Design

Graphic comparison of Zealot S78 and other products in the Portable Speakers category

Attribute category
Attribute
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Third-party reviews

United Kingdom
amazon
4.5
263 Reviews
amazon
4.5
254 Reviews
amazon
4.8
10 Reviews
United States
Amazon_logo.png
4.6
286 Reviews
Amazon_logo.png
4.1
4 Reviews

(Reviews last updated: August 2026)

What customers like about Zealot S78?

  • Powerful 100W-120W maximum sound output with high volume potential.
  • Strong, punchy bass response that can be physically felt during outdoor use.
  • Massive 24,000 mAh battery capacity providing long continuous playtime.
  • Functions as a power bank to charge mobile devices via a USB port.
  • Good build quality with a premium feel, scratch-resistant front grille, and an IPX6/IPY7 waterproof rating.
  • Multiple playback options including Bluetooth 5.2, 3.5mm AUX jack, USB drive, and TF/Micro SD card slot.
  • Includes a convenient shoulder/carry strap for portability.
  • Supports True Wireless Stereo (TWS) pairing to connect two units together.
  • Features built-in RGB dynamic light modes and illuminated control buttons.

What customers dislike about Zealot S78?

  • The speaker is physically large and quite heavy to carry around.
  • Audio distortion can occur at high volume levels, particularly when using the Bass EQ mode.
  • The treble EQ setting can sound overly bright, while the mid-range has been described as flat or muffled.
  • Exposed side woofers lack a protective mesh or grille covering, making them vulnerable to punctures.
  • Lacks a dedicated companion smartphone application for advanced custom controls.
  • Limited audio codec support, restricted primarily to standard SBC rather than higher quality AAC or HD audio.
  • The physical user instructions included in the box are considered unclear by some users.

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