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

Grundig GBT Solo Review | 130 Data compared

Avg. price:~£25Audio output power:3.00 WBattery life:20 hoursIP rating:IPX5Bluetooth version:5.0Weight:200 g

Grundig GBT Solo 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.

Grundig GBT Solo
6.8/10

Overall score

Score
6.8/ 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 57% of models
Score components

80%

6.3

Technical score

20%

8.8

User score

â–²Better than 57% of portable speakers
7.8

Value for money

Value for money
7.8/ 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 68% of models
Score components

70%

6.8

Overall score

30%

10

Price

â–²Better than 68%
6.3

Technical score

Technical score
6.3/ 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–¼ Worse than 64% of models
Score components

32%

5.6

Audio

20%

6.6

Battery

18%

7.2

Durability

16%

6.4

Connectivity

8%

5.2

Controls

3%

9.5

Design

3%

5.4

Smart features

â–¼Worse than 64%
8.8

User score

User score
8.8/ 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 84% of models
Score components

70%

9.0

User ratings

30%

8.4

Number of reviews

Based on ratings from across the web.
â–²Better than 84%
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Where to buy
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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 Grundig GBT Solo

Technical score
Technical score
6.3/ 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–¼ Worse than 64% of models
Score components:

32%

5.6

Audio

20%

6.6

Battery

18%

7.2

Durability

16%

6.4

Connectivity

8%

5.2

Controls

3%

9.5

Design

3%

5.4

Smart features

6.3
User score
User score
8.8/ 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 84% of models
Score components

70%

9.0

User ratings

30%

8.4

Number of reviews

Based on ratings from across the web.
8.8
Popularity
Popularity
8.4/ 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 82% of models
Popularity:
Grundig GBT Solo has a popularity score of 8.4 points, which is higher than 81.8% of products in this category.
8.4
Value for money
Value for money
7.8/ 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 68% of models
Score components:

70%

6.8

Overall score

30%

10

Price

7.8
Audio output power
3 W
Market range: <4 W – >100 W
This portable speaker has an audio output power of 3 W which is lower than that of 91.7% of portable speakers and equal to that of 6.8% of portable speakers.
Driver unit size
70 mm
Market range: <38 mm – >101 mm
This portable speaker has a driver unit size of 70 mm which is larger than that of 73.2% of portable speakers and equal to that of 2.1% 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
100 Hz
Market range: <20 Hz – >120 Hz
This portable speaker has a lowest frequency of 100 Hz which is higher than that of 82.6% of portable speakers and equal to that of 6% 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
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; HFP
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
20 hours
Market range: <6 hours – >24 hours
This portable speaker has a battery life of 20 hours which is longer than that of 80.2% of portable speakers and equal to that of 7.3% of portable speakers.
Battery capacity
1,050 mAh
Market range: <900 mAh – >6.6k mAh
This portable speaker has a battery capacity of 1,050 mAh which is smaller than that of 86.7% of portable speakers and equal to that of 0.6% of portable speakers.
Charging time
2.5 hours
Market range: <2 hours – >5 hours
This portable speaker has a charging time of 2.5 hours which is shorter than that of 70.7% of portable speakers and equal to that of 2.2% of portable speakers.
Maximum charging input power
5 W
Market range: <5 W – >30 W
This portable speaker has a maximum charging input power of 5 W which is lower than that of 58.7% of portable speakers and equal to that of 38.5% 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
IPX5
This portable speaker has an IP rating of IPX5 which provides worse ingress protection than 62.3% of portable speakers and the same ingress protection as 15.3% of portable speakers.
Water resistance
yes
This portable speaker is water resistant. 38.3% of portable speakers offer this feature.
Dust resistance
?
Waterproof depth rating
?
Drop resistance
?
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On-device controls placement
side
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
yes
This portable speaker includes a remote control. 85.1% 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
200 g
Market range: <200 g – >5.6k g
This portable speaker weighs 200 g which is lighter than that of 90% of portable speakers and equal to that of 1% of portable speakers.
Height
7.2 cm
Market range: <5.79 cm – >29 cm
This portable speaker has a height of 7.2 cm which is shorter than that of 78.8% of portable speakers and equal to that of 0.8% 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
3.6 cm
Market range: <4.3 cm – >19.97 cm
This portable speaker has a depth of 3.6 cm which is shallower than that of 95% of portable speakers and equal to that of 0.2% of portable speakers.
Carry options
none
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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
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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Grundig GBT Solo vs the average portable speaker

246810TotalAudioConnectivityBatteryDurabilityControlsDesignSmart features
  • 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
  • 8 hours longer battery life
    This portable speaker has a longer battery life than the average portable speaker (20 hours vs 12 hours).
    20 hours vs 12 hours
  • 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.
  • 20 mm larger main driver
    This portable speaker has a larger main driver than the average portable speaker (70 mm vs 50 mm).
    70 mm vs 50 mm
  • 0.5 hours shorter charging time
    This portable speaker has a shorter charging time than the average portable speaker (2.5 hours vs 3 hours).
    2.5 hours vs 3 hours
  • 600 g lighter
    This portable speaker is lighter than the average portable speaker (200 g vs 800 g).
    200 g vs 800 g
  • Includes a remote control
    This portable speaker includes a remote control, while the average portable speaker does not include a remote 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.
  • 3.6x cheaper
    Grundig GBT Solo is cheaper than the average portable speaker (£25 vs £90).
    £25 vs £90
  • 10.4% higher user score
    User score
    8.8/ 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
    Grundig GBT Solo
    the average portable speaker
    Grundig GBT Solo has a higher user score than the average portable speaker (8.83 vs 8).
    8.83 vs 8
  • 2.01x more popular
    Grundig GBT Solo is more popular than the average portable speaker (8.45 vs 4.21).
    8.45 vs 4.21
  • 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.
  • 20 mm larger main driver
    This portable speaker has a larger main driver than the average portable speaker (70 mm vs 50 mm).
    70 mm vs 50 mm
  • 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
  • 8 hours longer battery life
    This portable speaker has a longer battery life than the average portable speaker (20 hours vs 12 hours).
    20 hours vs 12 hours
  • 0.5 hours shorter charging time
    This portable speaker has a shorter charging time than the average portable speaker (2.5 hours vs 3 hours).
    2.5 hours vs 3 hours
  • Includes a remote control
    This portable speaker includes a remote control, while the average portable speaker does not include a remote 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.
  • 600 g lighter
    This portable speaker is lighter than the average portable speaker (200 g vs 800 g).
    200 g vs 800 g
  • 4.7 cm shallower
    This portable speaker is shallower than the average portable speaker (3.6 cm vs 8.3 cm).
    3.6 cm vs 8.3 cm
  • 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
  • 5.2 cm shorter
    This portable speaker is shorter than the average portable speaker (7.2 cm vs 12.4 cm).
    7.2 cm vs 12.4 cm
  • 4,000 Hz lower maximum frequency
    This portable speaker has a lower maximum frequency than the average portable speaker (16,000 Hz vs 20,000 Hz).
    16,000 Hz vs 20,000 Hz
  • 17 W less audio output power
    This portable speaker has less audio output power than the average portable speaker (3 W vs 20 W).
    3 W vs 20 W
  • 40 Hz less deep bass extension
    This portable speaker has less deep bass extension than the average portable speaker (100 Hz vs 60 Hz).
    100 Hz vs 60 Hz
  • 1,550 mAh less battery capacity
    This portable speaker has a smaller battery capacity than the average portable speaker (1,050 mAh vs 2,600 mAh).
    1,050 mAh vs 2,600 mAh
  • 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.
  • 5 W lower charging input power
    This portable speaker has lower charging input power than the average portable speaker (5 W vs 10 W).
    5 W vs 10 W
  • 1 fewer speaker drivers
    This portable speaker has fewer speaker drivers than the average portable speaker (1 vs 2).
    1 vs 2
  • 4,000 Hz lower maximum frequency
    This portable speaker has a lower maximum frequency than the average portable speaker (16,000 Hz vs 20,000 Hz).
    16,000 Hz vs 20,000 Hz
  • 17 W less audio output power
    This portable speaker has less audio output power than the average portable speaker (3 W vs 20 W).
    3 W vs 20 W
  • 40 Hz less deep bass extension
    This portable speaker has less deep bass extension than the average portable speaker (100 Hz vs 60 Hz).
    100 Hz vs 60 Hz
  • 1 fewer speaker drivers
    This portable speaker has fewer speaker drivers than the average portable speaker (1 vs 2).
    1 vs 2
  • 1,550 mAh less battery capacity
    This portable speaker has a smaller battery capacity than the average portable speaker (1,050 mAh vs 2,600 mAh).
    1,050 mAh vs 2,600 mAh
  • 5 W lower charging input power
    This portable speaker has lower charging input power than the average portable speaker (5 W vs 10 W).
    5 W vs 10 W
  • 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.

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 Grundig GBT Solo

  • Excellent battery life offering up to 20 hours of continuous playback.
  • Great value for money with high fidelity sound performance relative to its price tier.
  • Strong wireless connectivity with an impressive Bluetooth streaming range of up to 30 meters.
  • Robust build featuring an IPX5 splash-proof housing suitable for outdoor use.
  • Includes True Wireless Stereo (TWS) technology to easily pair two units together.
  • Integrated passive radiator enhances dynamic bass response considering its compact size.

What customers don't like about Grundig GBT Solo

  • Low total audio power output limited to only 3.5W RMS.
  • Relatively large body volume compared to modern compact competitors.
  • Lacks a true dustproof rating, carrying only an IPX5 liquid protection rating rather than IP67.
  • Bass extension can feel lacking for heavy electronic music due to a high low-frequency cutoff of 100 Hz.
  • High-frequency treble response maxes out at 16 kHz, missing out on some crisp sparkle found in premium rivals.
  • No smart voice command assistant features integrated into the system.

Verdict

The Grundig GBT Solo is an ultra-compact portable mono speaker featuring a 3.5 W RMS total output power paired with an integrated passive radiator for enhanced bass reproduction. Operating on Bluetooth 5.0 with True Wireless Stereo (TWS) technology, it provides an expansive wireless streaming range of up to 30 meters and boasts an impressive battery life of over 20 hours at 50% volume from its 1,050 mAh lithium-polymer battery. Weighing just 200 grams and measuring 90mm x 36mm x 72mm, the unit features an IPX5 splash-proof housing, an integrated microphone for hands-free calling, and a 3.5mm AUX input. Main pros include its exceptionally long playback time, extensive Bluetooth range, durable weather-resistant design, and budget-friendly compact mobility. However, its downsides consist of a relatively modest 3.5 W audio output that may lack power in noisy environments, limited single-channel mono sound staging unless paired with a second TWS unit, and an outdated Micro-USB charging port.

Compare Grundig GBT Solo with other products in the Portable Speakers category

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