OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Portable Speakers Methodology v1.0
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Products in this category are scored under Frontum Portable Speakers Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
Explore Portable Speakers Methodology v1.0

Zealot S78 Review | 130 Data compared

Avg. price:~£120Audio output power:?Battery life:40 hoursIP rating:?Bluetooth version:5.2Weight: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.

Zealot S78
8.1/10

Overall score

Score
8.1/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 99% of models
Score components

80%

8.0

Technical score

20%

8.6

User score

★Better than 99% of portable speakers
8.7

Value for money

Value for money
8.7/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 99% of models
Score components

70%

8.1

Overall score

30%

9.9

Price

★Better than 99%
8.0

Technical score

Technical score
8.0/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 99% of models
Score components

32%

8.6

Audio

20%

9.0

Battery

18%

8.8

Durability

16%

6.1

Connectivity

8%

7.0

Controls

3%

4.9

Design

3%

5.8

Smart features

★Better than 99%
8.6

User score

User score
8.6/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 81% of models
Score components

70%

9.1

User ratings

30%

7.6

Number of reviews

Based on ratings from across the web.
â–²Better than 81%
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of portable speaker Zealot S78

Technical score
Technical score
8.0/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 99% of models
Score components:

32%

8.6

Audio

20%

9.0

Battery

18%

8.8

Durability

16%

6.1

Connectivity

8%

7.0

Controls

3%

4.9

Design

3%

5.8

Smart features

8.0
User score
User score
8.6/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 81% of models
Score components

70%

9.1

User ratings

30%

7.6

Number of reviews

Based on ratings from across the web.
8.6
Popularity
Popularity
7.6/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 75% of models
Popularity:
Zealot S78 has a popularity score of 7.6 points, which is higher than 75.2% of products in this category.
7.6
Value for money
Value for money
8.7/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 99% of models
Score components:

70%

8.1

Overall score

30%

9.9

Price

8.7
Audio output power
?
Driver unit size
?
Number of drivers
4
Market range: <0 – >5
This portable speaker has 4 drivers, which is more than 81.7% of portable speakers and equal to the number in 11.9% of portable speakers.
Frequency response tolerance
?
Lowest frequency
20 Hz
Market range: <20 Hz – >120 Hz
This portable speaker has a lowest frequency of 20 Hz which is lower than that of 84.8% of portable speakers and equal to that of 14% of portable speakers.
Show more
Bluetooth connectivity
yes
This portable speaker supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
5.2
Market range: <3 – >5.3
This portable speaker 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.
Maximum Bluetooth range
10 m
Market range: <10 m – >30 m
This portable speaker has a maximum Bluetooth range of 10 m which is longer than that of 4.3% of portable speakers and equal to that of 70.2% of portable speakers.
Bluetooth profiles supported
?
Bluetooth LE Audio
no
This portable speaker does not support Bluetooth LE Audio. 2.5% of portable speakers offer this feature.
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Battery life
40 hours
Market range: <6 hours – >24 hours
This portable speaker 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
24,000 mAh
Market range: <900 mAh – >6.6k mAh
This portable speaker has a battery capacity of 24,000 mAh which is larger than that of 99.7% of portable speakers.
Charging time
2 hours
Market range: <2 hours – >5 hours
This portable speaker 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
10 W
Market range: <5 W – >30 W
This portable speaker 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
yes
This portable speaker has a built-in rechargeable battery. 18.7% of portable speakers offer this feature.
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IP rating
?
Water resistance
yes
This portable speaker is water resistant. 38.3% of portable speakers offer this feature.
Dust resistance
yes
This portable speaker is dust resistant. 48.6% of portable speakers offer this feature.
Waterproof depth rating
1 m
Market range: <0 m – >1 m
This portable speaker 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
yes
This portable speaker resists accidental impacts. 67.3% of portable speakers offer this feature.
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On-device controls placement
top
Touchscreen
no
This portable speaker does not have a touchscreen. 0.3% of portable speakers offer this feature.
Smartphone app control
no
This portable speaker does not support smartphone app control. 54% of portable speakers offer this feature.
No compatible mobile app for speaker control.
Remote control
no
This portable speaker does not include a remote control. 15% of portable speakers offer this feature.
Fast pairing
no
This portable speaker does not support fast pairing. 22.5% of portable speakers offer this feature.
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Weight
4,400 g
Market range: <200 g – >5.6k g
This portable speaker weighs 4,400 g which is heavier than that of 87.3% of portable speakers.
Height
18.5 cm
Market range: <5.79 cm – >29 cm
This portable speaker 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
41 cm
Market range: <7.6 cm – >37 cm
This portable speaker 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
16.7 cm
Market range: <4.3 cm – >19.97 cm
This portable speaker has a depth of 16.7 cm which is deeper than that of 84.4% of portable speakers.
Carry options
strap/handle/shoulder
Show more
Companion app name
?
Firmware updates
no
This portable speaker does not support firmware updates. 47.2% of portable speakers offer this feature.
Firmware update method
?
Voice assistant support
no
This portable speaker does not support voice assistants. 26.5% of portable speakers offer this feature.
Spotify Connect
no
This portable speaker does not support Spotify Connect. 10.8% of portable speakers offer this feature.
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Zealot S78 vs the average portable speaker

246810TotalAudioConnectivityBatteryDurabilityControlsDesignSmart features
  • 28 hours longer battery life
    This portable speaker 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
    This portable speaker has a larger battery capacity than the average portable speaker (24,000 mAh vs 2,600 mAh).
    24,000 mAh vs 2,600 mAh
  • 1 m deeper waterproof rating
    This portable speaker 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
    This portable speaker has deeper bass extension than the average portable speaker (20 Hz vs 60 Hz).
    20 Hz vs 60 Hz
  • 2 more speaker drivers
    This portable speaker has more speaker drivers than the average portable speaker (4 vs 2).
    4 vs 2
  • Provides 360-degree sound
    This portable speaker provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
    Provides omnidirectional 360° sound radiation.
  • Has a noise-canceling microphone
    This portable speaker 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.
  • 1 hours shorter charging time
    This portable speaker has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
    2 hours vs 3 hours
  • 14.7% better value for money
    Zealot S78 offers better value for money than the average portable speaker (8.65 vs 7.5).
    8.65 vs 7.55
  • 8.1% higher user score
    User score
    8.6/ 10
    ✕
    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 distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Zealot S78
    the average portable speaker
    Zealot S78 has a higher user score than the average portable speaker (8.65 vs 8).
    8.65 vs 8
  • 40 Hz deeper bass extension
    This portable speaker has deeper bass extension than the average portable speaker (20 Hz vs 60 Hz).
    20 Hz vs 60 Hz
  • 2 more speaker drivers
    This portable speaker has more speaker drivers than the average portable speaker (4 vs 2).
    4 vs 2
  • Provides 360-degree sound
    This portable speaker provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
    Provides omnidirectional 360° sound radiation.
  • Has a noise-canceling microphone
    This portable speaker 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.
  • Has built-in stereo speakers
    This portable speaker has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
    Provides true stereo output within the unit.
  • 1 more USB ports
    This portable speaker has more USB ports than the average portable speaker (2 vs 1).
    2 vs 1
  • Has a USB Type-C port
    This portable speaker has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
    Has a physical USB-C port.
  • Has an external memory card slot
    This portable speaker has an external memory card slot, while the average portable speaker does not have an external memory card slot.
    Has a removable memory-card slot for playback.
  • 0.2 Bluetooth levels newer
    This portable speaker has a newer Bluetooth version than the average portable speaker (5.2 vs 5).
    5.2 vs 5
  • 28 hours longer battery life
    This portable speaker 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
    This portable speaker has a larger battery capacity than the average portable speaker (24,000 mAh vs 2,600 mAh).
    24,000 mAh vs 2,600 mAh
  • 1 hours shorter charging time
    This portable speaker has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
    2 hours vs 3 hours
  • Has a power bank function
    This portable speaker has a power bank function, while the average portable speaker does not have a power bank function.
  • 1 m deeper waterproof rating
    This portable speaker has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
    1 m vs 0 m
  • Resists accidental impacts
    This portable speaker resists accidental impacts, while the average portable speaker lacks an impact-resistance rating.
  • 20 °C higher maximum operating temperature
    This portable speaker has a higher maximum operating temperature than the average portable speaker (60 °C vs 40 °C).
    60 °C vs 40 °C
  • Has an equalizer
    This portable speaker has an equalizer, while the average portable speaker does not have an equalizer.
    Offers user-selectable EQ, tone adjustment, or sound presets.
  • 3 more EQ presets
    This portable speaker has more EQ presets than the average portable speaker (3 vs 0).
    3 vs 0
  • Supports party mode
    This portable speaker supports party mode, while the average portable speaker does not support party mode.
    Supports synchronized multi-speaker party/group playback.
  • Has an FM radio
    This portable speaker has an FM radio, while the average portable speaker does not have an FM radio.
  • Does not support smartphone app control
    This portable speaker 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
    This portable speaker is heavier than the average portable speaker (4,400 g vs 800 g).
    4,400 g vs 800 g
  • 1 fewer multipoint connections
    This portable speaker has fewer multipoint connections than the average portable speaker (0 vs 1).
    0 vs 1
  • 22.9 cm wider
    This portable speaker is wider than the average portable speaker (41 cm vs 18.1 cm).
    41 cm vs 18.1 cm
  • 8.4 cm deeper
    This portable speaker 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
    This portable speaker is taller than the average portable speaker (18.5 cm vs 12.4 cm).
    18.5 cm vs 12.4 cm
  • 1 fewer multipoint connections
    This portable speaker has fewer multipoint connections than the average portable speaker (0 vs 1).
    0 vs 1
  • Does not support smartphone app control
    This portable speaker 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
    This portable speaker is heavier than the average portable speaker (4,400 g vs 800 g).
    4,400 g vs 800 g
  • 22.9 cm wider
    This portable speaker is wider than the average portable speaker (41 cm vs 18.1 cm).
    41 cm vs 18.1 cm
  • 8.4 cm deeper
    This portable speaker 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
    This portable speaker is taller than the average portable speaker (18.5 cm vs 12.4 cm).
    18.5 cm vs 12.4 cm

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Third-party reviews

Based on ratings from across the web.
Reviews last updated: August 2026 · How we calculate this

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 don't like 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.

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.

Compare Zealot S78 with other products in the Portable Speakers category

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