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

Energy Sistem FS3 Review | 130 Data compared

Avg. price:~£25Audio output power:20.00 WBattery life:10 hoursIP rating:?Bluetooth version:5.0Weight:822 g

Energy Sistem FS3 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.

Energy Sistem FS3
6.7/10

Overall score

Score
6.7/ 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
â–² Better than 52% of models
Score components

80%

6.4

Technical score

20%

8.3

User score

â–²Better than 52% of portable speakers
7.7

Value for money

Value for money
7.7/ 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
â–² Better than 59% of models
Score components

70%

6.7

Overall score

30%

10

Price

â–²Better than 59%
6.4

Technical score

Technical score
6.4/ 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
â–¼ Worse than 61% of models
Score components

32%

5.5

Audio

20%

6.6

Battery

18%

7.1

Durability

16%

6.7

Connectivity

8%

6.8

Controls

3%

8.4

Design

3%

4.8

Smart features

â–¼Worse than 61%
8.3

User score

User score
8.3/ 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 74% of models
Score components

70%

8.8

User ratings

30%

7.0

Number of reviews

Based on ratings from across the web.
â–²Better than 74%
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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 Energy Sistem FS3

Technical score
Technical score
6.4/ 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
â–¼ Worse than 61% of models
Score components:

32%

5.5

Audio

20%

6.6

Battery

18%

7.1

Durability

16%

6.7

Connectivity

8%

6.8

Controls

3%

8.4

Design

3%

4.8

Smart features

6.4
User score
User score
8.3/ 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 74% of models
Score components

70%

8.8

User ratings

30%

7.0

Number of reviews

Based on ratings from across the web.
8.3
Popularity
Popularity
7.0/ 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 71% of models
Popularity:
Energy Sistem FS3 has a popularity score of 7 points, which is higher than 71.1% of products in this category.
7.0
Value for money
Value for money
7.7/ 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
â–² Better than 59% of models
Score components:

70%

6.7

Overall score

30%

10

Price

7.7
Audio output power
20 W
Market range: <4 W – >100 W
This portable speaker has an audio output power of 20 W which is higher than that of 46.1% of portable speakers and equal to that of 11.4% of portable speakers.
Driver unit size
45 mm
Market range: <38 mm – >101 mm
This portable speaker has a driver unit size of 45 mm which is smaller than that of 60.9% of portable speakers and equal to that of 8.6% of portable speakers.
Number of drivers
2
Market range: <0 – >5
This portable speaker has 2 drivers, which is more than 24.5% of portable speakers and equal to the number in 45.5% of portable speakers.
Frequency response tolerance
?
Lowest frequency
80 Hz
Market range: <20 Hz – >120 Hz
This portable speaker has a lowest frequency of 80 Hz which is higher than that of 68.5% of portable speakers and equal to that of 9.4% 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
Market range: <3 – >5.3
This portable speaker supports Bluetooth version 5 which is newer than that of 46.3% of portable speakers and equal to that of 24.4% of portable speakers.
Maximum Bluetooth range
20 m
Market range: <10 m – >30 m
This portable speaker has a maximum Bluetooth range of 20 m which is longer than that of 78.7% of portable speakers and equal to that of 6.4% of portable speakers.
Bluetooth profiles supported
A2DP; AVRCP; HFP; HSP
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
10 hours
Market range: <6 hours – >24 hours
This portable speaker has a battery life of 10 hours which is shorter than that of 53.9% of portable speakers and equal to that of 12.9% of portable speakers.
Battery capacity
3,000 mAh
Market range: <900 mAh – >6.6k mAh
This portable speaker has a battery capacity of 3,000 mAh which is larger than that of 58.8% of portable speakers and equal to that of 3.8% 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
?
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
no
This portable speaker is not rated as dust resistant. 51.5% of portable speakers offer this feature.
Waterproof depth rating
?
Drop resistance
no
This portable speaker lacks an impact-resistance rating. 32.8% 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
822 g
Market range: <200 g – >5.6k g
This portable speaker weighs 822 g which is heavier than that of 50.8% of portable speakers.
Height
22.6 cm
Market range: <5.79 cm – >29 cm
This portable speaker has a height of 22.6 cm which is taller than that of 83.7% of portable speakers and equal to that of 0.1% of portable speakers.
Width
9 cm
Market range: <7.6 cm – >37 cm
This portable speaker has a width of 9 cm which is narrower than that of 79.7% of portable speakers and equal to that of 1.6% of portable speakers.
Depth
9 cm
Market range: <4.3 cm – >19.97 cm
This portable speaker has a depth of 9 cm which is deeper than that of 54.4% of portable speakers and equal to that of 1.9% of portable speakers.
Carry options
handle
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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
?
Spotify Connect
no
This portable speaker does not support Spotify Connect. 10.8% of portable speakers offer this feature.
Show more

Energy Sistem FS3 vs the average portable speaker

246810TotalAudioConnectivityBatteryDurabilityControlsDesignSmart features
  • 10 m longer Bluetooth range
    This portable speaker has a longer Bluetooth range than the average portable speaker (20 m vs 10 m).
    20 m vs 10 m
  • 10 more adjustable EQ bands
    This portable speaker has more adjustable EQ bands than the average portable speaker (10 vs 0).
    10 vs 0
  • 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
  • 1 more USB ports
    This portable speaker has more USB ports than the average portable speaker (2 vs 1).
    2 vs 1
  • 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 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.
  • 3.6x cheaper
    Energy Sistem FS3 is cheaper than the average portable speaker (£25 vs £90).
    £25 vs £90
  • 3.2% higher user score
    User score
    8.3/ 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
    Energy Sistem FS3
    the average portable speaker
    Energy Sistem FS3 has a higher user score than the average portable speaker (8.26 vs 8).
    8.26 vs 8
  • 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.
  • 10 m longer Bluetooth range
    This portable speaker has a longer Bluetooth range than the average portable speaker (20 m vs 10 m).
    20 m vs 10 m
  • 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.
  • 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
  • 400 mAh more battery capacity
    This portable speaker has a larger battery capacity than the average portable speaker (3,000 mAh vs 2,600 mAh).
    3,000 mAh vs 2,600 mAh
  • 10 more adjustable EQ bands
    This portable speaker has more adjustable EQ bands than the average portable speaker (10 vs 0).
    10 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.
  • Supports playback mute
    This portable speaker supports playback mute, while the average portable speaker does not support playback mute.
    Speaker playback audio can be directly muted.
  • 9.1 cm narrower
    This portable speaker is narrower than the average portable speaker (9 cm vs 18.1 cm).
    9 cm vs 18.1 cm
  • Is not rated as dust resistant
    This portable speaker is not rated as dust resistant, while the average portable speaker is dust resistant.
  • 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.
  • 2,000 Hz lower maximum frequency
    This portable speaker has a lower maximum frequency than the average portable speaker (18,000 Hz vs 20,000 Hz).
    18,000 Hz vs 20,000 Hz
  • 20 dB lower signal-to-noise ratio
    This portable speaker has a lower signal-to-noise ratio than the average portable speaker (60 dB vs 80 dB).
    60 dB vs 80 dB
  • 20 Hz less deep bass extension
    This portable speaker has less deep bass extension than the average portable speaker (80 Hz vs 60 Hz).
    80 Hz vs 60 Hz
  • 2 hours shorter battery life
    This portable speaker has a shorter battery life than the average portable speaker (10 hours vs 12 hours).
    10 hours vs 12 hours
  • 5 mm smaller main driver
    This portable speaker has a smaller main driver than the average portable speaker (45 mm vs 50 mm).
    45 mm vs 50 mm
  • 10.2 cm taller
    This portable speaker is taller than the average portable speaker (22.6 cm vs 12.4 cm).
    22.6 cm vs 12.4 cm
  • 2,000 Hz lower maximum frequency
    This portable speaker has a lower maximum frequency than the average portable speaker (18,000 Hz vs 20,000 Hz).
    18,000 Hz vs 20,000 Hz
  • 20 dB lower signal-to-noise ratio
    This portable speaker has a lower signal-to-noise ratio than the average portable speaker (60 dB vs 80 dB).
    60 dB vs 80 dB
  • 20 Hz less deep bass extension
    This portable speaker has less deep bass extension than the average portable speaker (80 Hz vs 60 Hz).
    80 Hz vs 60 Hz
  • 5 mm smaller main driver
    This portable speaker has a smaller main driver than the average portable speaker (45 mm vs 50 mm).
    45 mm vs 50 mm
  • 2 hours shorter battery life
    This portable speaker has a shorter battery life than the average portable speaker (10 hours vs 12 hours).
    10 hours vs 12 hours
  • Is not rated as dust resistant
    This portable speaker is not rated as dust resistant, while the average portable speaker is dust resistant.
  • 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.
  • 10.2 cm taller
    This portable speaker is taller than the average portable speaker (22.6 cm vs 12.4 cm).
    22.6 cm vs 12.4 cm

Expert reviews

In-depth analysis and verdict from leading tech publications

C
ceotech.it
12/11/2021
Summary of the review
Energy Sistem Speaker FS3 CeoTech Review
(Translated)Show original

Third-party reviews

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

What customers like about Energy Sistem FS3

  • Excellent value for money
  • Compact and highly portable pocket-sized design
  • Very clear vocals and high frequencies
  • Surprisingly loud audio output for its small size
  • Versatile connectivity options including Bluetooth 5.0, USB, MicroSD, and 3.5mm Aux
  • Built-in FM radio functionality
  • Supports True Wireless Stereo (TWS) pairing with a second unit
  • Aesthetically pleasing fabric finish and good overall build quality

What customers don't like about Energy Sistem FS3

  • Weak or limited bass performance
  • Sound can feel slightly muffled or lacking depth compared to premium brands
  • Actual battery life under continuous use can be significantly shorter than advertised
  • No digital screen display, making it difficult to know which FM radio station is selected
  • Lacks a rubber or silicone exterior coating, leaving it potentially vulnerable to drop damage

Verdict

The Energy Sistem FS3 is a portable Bluetooth 5.0 speaker featuring a 2.0 stereo sound system with two 2.25-inch full-range drivers, a dual-membrane passive bass radiator, and 20W of output power. Key characteristics include True Wireless Stereo (TWS) technology to pair two units, a built-in noise-canceling microphone for hands-free calls and smartphone voice assistants, splash-proof fabric styling, and multiple playback inputs via USB, microSD (up to 64GB), and a 3.5mm audio jack. Main pros are its lightweight 1,830 cm³ urban design, a 2-hour fast charging time via USB Type-C, an extended wireless connectivity range of up to 20 meters, and a solid battery life reaching up to 10–12 hours. However, notable cons include its lack of robust water or sweat resistance ratings and the absence of an integrated battery level indicator.

Compare Energy Sistem FS3 with other products in the Portable Speakers category

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