OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Portable Speakers Methodology v1.0
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Mathematical & Unbiased Scoring
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

Poly Sync 40 Review | 130 Data compared

Avg. price:~£130Audio output power:?Battery life:30 hoursIP rating:IP64Bluetooth version:5.1Weight:610 g

Poly Sync 40 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.

Poly Sync 40
7.5/10

Overall score

Score
7.5/ 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 88% of models
Score components

80%

7.3

Technical score

20%

8.2

User score

â–²Better than 88% of portable speakers
8.2

Value for money

Value for money
8.2/ 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 90% of models
Score components

70%

7.5

Overall score

30%

9.8

Price

★Better than 90%
7.3

Technical score

Technical score
7.3/ 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–² Better than 88% of models
Score components

32%

6.4

Audio

20%

8.4

Battery

18%

6.9

Durability

16%

6.9

Connectivity

8%

8.7

Controls

3%

8.7

Design

3%

7.2

Smart features

â–²Better than 88%
8.2

User score

User score
8.2/ 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%

8.6

User ratings

30%

7.3

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 Poly Sync 40

Technical score
Technical score
7.3/ 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–² Better than 88% of models
Score components:

32%

6.4

Audio

20%

8.4

Battery

18%

6.9

Durability

16%

6.9

Connectivity

8%

8.7

Controls

3%

8.7

Design

3%

7.2

Smart features

7.3
User score
User score
8.2/ 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%

8.6

User ratings

30%

7.3

Number of reviews

Based on ratings from across the web.
8.2
Popularity
Popularity
7.3/ 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 73% of models
Popularity:
Poly Sync 40 has a popularity score of 7.3 points, which is higher than 72.9% of products in this category.
7.3
Value for money
Value for money
8.2/ 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 90% of models
Score components:

70%

7.5

Overall score

30%

9.8

Price

8.2
Audio output power
?
Driver unit size
50 mm
Market range: <38 mm – >101 mm
This portable speaker has a driver unit size of 50 mm which is larger than that of 43.8% of portable speakers and equal to that of 10.2% of portable speakers.
Number of drivers
1
Market range: <0 – >5
This portable speaker has 1 drivers, which is fewer than 75.6% of portable speakers and equal to the number in 24.4% of portable speakers.
Frequency response tolerance
?
Lowest frequency
75 Hz
Market range: <20 Hz – >120 Hz
This portable speaker has a lowest frequency of 75 Hz which is higher than that of 66% of portable speakers and equal to that of 2.3% of portable speakers.
Show more
Bluetooth connectivity
yes
This portable speaker supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
5.1
Market range: <3 – >5.3
This portable speaker supports Bluetooth version 5.1 which is newer than that of 70.8% of portable speakers and equal to that of 4.8% of portable speakers.
Maximum Bluetooth range
30 m
Market range: <10 m – >30 m
This portable speaker has a maximum Bluetooth range of 30 m which is longer than that of 85.5% of portable speakers and equal to that of 10% of portable speakers.
Bluetooth profiles supported
A2DP; AVRCP; HFP; HSP
Bluetooth LE Audio
?
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Battery life
30 hours
Market range: <6 hours – >24 hours
This portable speaker has a battery life of 30 hours which is longer than that of 96.8% of portable speakers and equal to that of 1.8% of portable speakers.
Battery capacity
5,000 mAh
Market range: <900 mAh – >6.6k mAh
This portable speaker has a battery capacity of 5,000 mAh which is larger than that of 80.7% of portable speakers and equal to that of 1.5% of portable speakers.
Charging time
5 hours
Market range: <2 hours – >5 hours
This portable speaker has a charging time of 5 hours which is longer than that of 87% of portable speakers and equal to that of 7.7% of portable speakers.
Maximum charging input power
18 W
Market range: <5 W – >30 W
This portable speaker has a maximum charging input power of 18 W which is higher than that of 83.6% of portable speakers and equal to that of 0.9% 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
IP64
This portable speaker has an IP rating of IP64 which provides better ingress protection than 77.2% of portable speakers and the same ingress protection as 1.1% of portable speakers.
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
Not waterproof m
This portable speaker is not rated for underwater use. 47.6% of portable speakers have a native 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; side
Touchscreen
no
This portable speaker does not have a touchscreen. 0.3% of portable speakers offer this feature.
Smartphone app control
yes
This portable speaker supports smartphone app control. 46.1% of portable speakers offer this feature.
Compatible mobile app provides speaker control or settings.
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
610 g
Market range: <200 g – >5.6k g
This portable speaker weighs 610 g which is lighter than that of 58% of portable speakers and equal to that of 0.2% of portable speakers.
Height
3.8 cm
Market range: <5.79 cm – >29 cm
This portable speaker has a height of 3.8 cm which is shorter than that of 97.5% of portable speakers and equal to that of 0.2% of portable speakers.
Width
27.3 cm
Market range: <7.6 cm – >37 cm
This portable speaker has a width of 27.3 cm which is wider than that of 74.7% of portable speakers and equal to that of 0.2% of portable speakers.
Depth
3.8 cm
Market range: <4.3 cm – >19.97 cm
This portable speaker has a depth of 3.8 cm which is shallower than that of 94% of portable speakers and equal to that of 0.4% of portable speakers.
Carry options
handle
Show more
Companion app name
?
Firmware updates
yes
This portable speaker supports firmware updates. 52.9% of portable speakers offer this feature.
Supports user-accessible firmware updates.
Firmware update method
?
Voice assistant support
yes
This portable speaker supports voice assistants. 73.6% of portable speakers offer this feature.
Supports direct voice-assistant control.
Spotify Connect
no
This portable speaker does not support Spotify Connect. 10.8% of portable speakers offer this feature.
Show more

Poly Sync 40 vs the average portable speaker

246810TotalAudioConnectivityBatteryDurabilityControlsDesignSmart features
  • 18 hours longer battery life
    This portable speaker has a longer battery life than the average portable speaker (30 hours vs 12 hours).
    30 hours vs 12 hours
  • 20 m longer Bluetooth range
    This portable speaker has a longer Bluetooth range than the average portable speaker (30 m vs 10 m).
    30 m vs 10 m
  • Better ingress protection
    This portable speaker has better ingress protection than the average portable speaker (IP64 vs IPX5).
    IP64 vs IPX5
  • 2,400 mAh more battery capacity
    This portable speaker has a larger battery capacity than the average portable speaker (5,000 mAh vs 2,600 mAh).
    5,000 mAh vs 2,600 mAh
  • 1 more multipoint connections
    This portable speaker has more multipoint connections than the average portable speaker (2 vs 1).
    2 vs 1
  • 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 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.
  • 8 W higher charging input power
    This portable speaker has higher charging input power than the average portable speaker (18 W vs 10 W).
    18 W vs 10 W
  • 8.3% better value for money
    Poly Sync 40 offers better value for money than the average portable speaker (8.17 vs 7.5).
    8.17 vs 7.55
  • 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.
  • 2 more microphones
    This portable speaker has more microphones than the average portable speaker (3 vs 1).
    3 vs 1
  • Has beamforming microphones
    This portable speaker has beamforming microphones, while the average portable speaker does not have beamforming microphones.
    Uses beamforming microphone technology.
  • 20 m longer Bluetooth range
    This portable speaker has a longer Bluetooth range than the average portable speaker (30 m vs 10 m).
    30 m vs 10 m
  • 1 more multipoint connections
    This portable speaker has more multipoint connections 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.
  • 0.1 Bluetooth levels newer
    This portable speaker has a newer Bluetooth version than the average portable speaker (5.1 vs 5).
    5.1 vs 5
  • 18 hours longer battery life
    This portable speaker has a longer battery life than the average portable speaker (30 hours vs 12 hours).
    30 hours vs 12 hours
  • 2,400 mAh more battery capacity
    This portable speaker has a larger battery capacity than the average portable speaker (5,000 mAh vs 2,600 mAh).
    5,000 mAh vs 2,600 mAh
  • 8 W higher charging input power
    This portable speaker has higher charging input power than the average portable speaker (18 W vs 10 W).
    18 W vs 10 W
  • 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.
  • Better ingress protection
    This portable speaker has better ingress protection than the average portable speaker (IP64 vs IPX5).
    IP64 vs IPX5
  • Is UV resistant
    This portable speaker is UV resistant, while the average portable speaker is not rated as UV resistant.
  • 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.
  • 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 hardware microphone mute switch
    This portable speaker has a hardware microphone mute switch, while the average portable speaker does not have a hardware microphone mute switch.
    Has a physical microphone mute control.
  • 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.
  • Has a programmable button
    This portable speaker has a programmable button, while the average portable speaker does not have a programmable button.
    Has a user-programmable physical button.
  • 8.6 cm shorter
    This portable speaker is shorter than the average portable speaker (3.8 cm vs 12.4 cm).
    3.8 cm vs 12.4 cm
  • 4.5 cm shallower
    This portable speaker is shallower than the average portable speaker (3.8 cm vs 8.3 cm).
    3.8 cm vs 8.3 cm
  • Supports voice assistants
    This portable speaker supports voice assistants, while the average portable speaker does not support voice assistants.
    Supports direct voice-assistant control.
  • Supports firmware updates
    This portable speaker supports firmware updates, while the average portable speaker does not support firmware updates.
    Supports user-accessible firmware updates.
  • 2 hours longer charging time
    This portable speaker has a longer charging time than the average portable speaker (5 hours vs 3 hours).
    5 hours vs 3 hours
  • Does not have a 3.5 mm AUX input
    This portable speaker does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
    No built-in 3.5 mm AUX input.
  • 10 °C higher minimum operating temperature
    This portable speaker has a higher minimum operating temperature than the average portable speaker (10 °C vs 0 °C).
    10 °C vs 0 °C
  • 1 fewer speaker drivers
    This portable speaker has fewer speaker drivers than the average portable speaker (1 vs 2).
    1 vs 2
  • 3 dB SPL lower maximum sound pressure
    This portable speaker has a lower maximum sound pressure level than the average portable speaker (89 dB SPL vs 92 dB SPL).
    89 dB SPL vs 92 dB SPL
  • 15 Hz less deep bass extension
    This portable speaker has less deep bass extension than the average portable speaker (75 Hz vs 60 Hz).
    75 Hz vs 60 Hz
  • 700 Hz lower microphone frequency limit
    This portable speaker has a lower microphone frequency limit than the average portable speaker (6,700 Hz vs 7,400 Hz).
    6,700 Hz vs 7,400 Hz
  • 9.2 cm wider
    This portable speaker is wider than the average portable speaker (27.3 cm vs 18.1 cm).
    27.3 cm vs 18.1 cm
  • 1 fewer speaker drivers
    This portable speaker has fewer speaker drivers than the average portable speaker (1 vs 2).
    1 vs 2
  • 3 dB SPL lower maximum sound pressure
    This portable speaker has a lower maximum sound pressure level than the average portable speaker (89 dB SPL vs 92 dB SPL).
    89 dB SPL vs 92 dB SPL
  • 15 Hz less deep bass extension
    This portable speaker has less deep bass extension than the average portable speaker (75 Hz vs 60 Hz).
    75 Hz vs 60 Hz
  • 700 Hz lower microphone frequency limit
    This portable speaker has a lower microphone frequency limit than the average portable speaker (6,700 Hz vs 7,400 Hz).
    6,700 Hz vs 7,400 Hz
  • Does not have a 3.5 mm AUX input
    This portable speaker does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
    No built-in 3.5 mm AUX input.
  • 2 hours longer charging time
    This portable speaker has a longer charging time than the average portable speaker (5 hours vs 3 hours).
    5 hours vs 3 hours
  • 10 °C higher minimum operating temperature
    This portable speaker has a higher minimum operating temperature than the average portable speaker (10 °C vs 0 °C).
    10 °C vs 0 °C
  • 9.2 cm wider
    This portable speaker is wider than the average portable speaker (27.3 cm vs 18.1 cm).
    27.3 cm vs 18.1 cm

Video reviews

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

Expert reviews

In-depth analysis and verdict from leading tech publications

T
techbuzzireland.com
11/01/2022
Summary of the review
Tech Review – Poly Sync 40 conference speaker
P
potions.sg
14/06/2021
Summary of the review
The Poly Sync 40 is a great speaker phone for work and play - Potions
N
notebookcheck.com
16/04/2021
Summary of the review
Poly Sync 40-M Conference Speaker Review - For When You Want a Little More
(Translated)Show original
N
notebookcheck.com
16/04/2021
Summary of the review
Poly Sync 40-M Conference Speaker Review - For When You Need a Little Bit Extra
(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 Poly Sync 40

  • Excellent vocal clarity and dual-duplex conference call quality
  • Effective multi-microphone background noise suppression and echo cancellation
  • Long-lasting battery life offering up to 20 to 30 hours of talk time
  • Versatile dual connectivity via integrated USB-A/USB-C cable and Bluetooth
  • Doubles as a portable power bank to charge smartphones via a built-in USB port
  • Supports wireless daisy-chaining with a second unit for larger meeting rooms
  • Sturdy dust- and water-resistant build quality with an IP64 rating
  • Highly visible status light bar for clear volume and mute indicators

What customers don't like about Poly Sync 40

  • Music playback capabilities lack the layered depth and loudness found in dedicated music speakers
  • The attached USB cable is relatively short, limiting placement options away from a laptop
  • Initial setup requires it to be physically plugged into a power source to wake from factory shipping mode
  • Requires using the companion software app to access essential firmware updates and equalizer settings
  • Higher premium price point compared to entry-level desktop speakerphones
  • Reports of occasional Bluetooth connection pairing drops or difficulties daisy-chaining with different models

Verdict

The Poly Sync 40 is a portable business speakerphone designed for flexible huddle spaces and rooms up to 5x5 meters, featuring a 50mm high-performance speaker, a 3-microphone steerable array with a 2.5-meter pickup range, full-duplex audio, and an IP64 dust and water resistance rating. Key advantages include an outstanding battery life of up to 30 hours of talk time, the ability to act as a 5000 mAh smartphone power bank, a combined integrated USB-A/USB-C cable alongside Bluetooth 5.1, and the capability to wirelessly daisy-chain two units together for larger meeting environments. However, notable drawbacks include a relatively slow battery recharge time of up to 5 hours and a heavier footprint (610 grams) compared to some of its portable competitors.

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