Teufel Boomster Go vs Soundcore Select 4 Go

Last updated: August 19, 2026

Short answer: the Teufel Boomster Go. It ranks #7 of 47 small speakers by sound quality; the Soundcore Select 4 Go ranks #23.

What the Teufel Boomster Go offers: Pretty deep bass and quite balanced overall for the size. The tradeoff: Distortion becomes audible above roughly 75% volume; at max volume up close it gets unclear and tinny.

What the Soundcore Select 4 Go gets right: Quite inexpensive for what you get. Watch for: Not as deep of bass as higher ranked speakers. Doesn’t get very loud before sound quality drops; some sibilance on snare/stick transients.

Buy the Teufel Boomster Go if sound quality matters more than the price. Buy the Soundcore Select 4 Go if the price matters more than sound quality.

If battery life is a priority, the Soundcore Select 4 Go is rated for 20 hours versus 10 hours for the Teufel Boomster Go.

Buy the Soundcore Select 4 Go at Aliexpress ($19.39) →

Teufel Boomster Go vs Soundcore Select 4 Go

Specifications Side By Side

Teufel Boomster Go Soundcore Select 4 Go
Price€80 Discontinued$19.39
Ranked#7 of 47 in Small Size Portable Bluetooth Speakers#23 of 47 in Small Size Portable Bluetooth Speakers
Battery Life10 hours (Manufacturer specified)20 hours (Manufacturer specified)
IP RatingIPX7IP67
Party ModeNoNo
Power BankNoNo
Power InputUSB-CUSB-C
StereoNoNo
OmnidirectionalPointing upPointing up
TWSYesYes
Weight0.8 lbs / 355 g0.6 lbs / 265 g
AppNoYes
Aux InputNoNo
Bluetooth CodecsSBCSBC
Built in MicrophoneYesYes
EQNoYes
Bluetooth Version4.05.4
Frequency Response65Hz - 20kHz (Manufacturer specified)90Hz - 20kHz (Manufacturer specified)
Dimensions4.2" x 4" x 1.8" (107 x 102 x 46 mm)4.8" x 3.3" x 1.9" (121 x 83 x 48.5 mm)
Charging Time2.5 hours4 hours
Output Power10W5W
Drivers50mm woofer + 20mm tweeter1.75" (44mm) full range
DiscontinuedYes-
Digital Aux InputNoNo
Buy the Soundcore Select 4 Go at Aliexpress ($19.39) →

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

Teufel Boomster Go: €80 Discontinued

Teufel Boomster Go ranking card

Pros: Pretty deep bass and quite balanced overall for the size.

Cons: Distortion becomes audible above roughly 75% volume; at max volume up close it gets unclear and tinny. Discontinued.

Full Teufel Boomster Go review and specifications →

AppNo
Aux InputNo
Battery Life10 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version4.0
Built in MicrophoneYes
Charging Time2.5 hours
Digital Aux InputNo
Dimensions4.2" x 4" x 1.8" (107 x 102 x 46 mm)
DiscontinuedYes
Drivers50mm woofer + 20mm tweeter
EQNo
Frequency Response65Hz - 20kHz (Manufacturer specified)
IP RatingIPX7
OmnidirectionalPointing up
Output Power10W
Party ModeNo
Power BankNo
Power InputUSB-C
StereoNo
TWSYes
Weight0.8 lbs / 355 g
Search eBay for Teufel Boomster Go →

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Soundcore Select 4 Go: $19.39 Aliexpress Amazon Bhphotovideo

Soundcore Select 4 Go ranking card

Pros: Quite inexpensive for what you get

Cons: Not as deep of bass as higher ranked speakers. Doesn’t get very loud before sound quality drops; some sibilance on snare/stick transients. No built-in mic; playback is mono unless you buy a second unit.

Full Soundcore Select 4 Go review and specifications →

AppYes
Aux InputNo
Battery Life20 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.4
Built in MicrophoneYes
Charging Time4 hours
Digital Aux InputNo
Dimensions4.8" x 3.3" x 1.9" (121 x 83 x 48.5 mm)
Drivers1.75" (44mm) full range
EQYes
Frequency Response90Hz - 20kHz (Manufacturer specified)
IP RatingIP67
OmnidirectionalPointing up
Output Power5W
Party ModeNo
Power BankNo
Power InputUSB-C
StereoNo
TWSYes
Weight0.6 lbs / 265 g
Check current price at Aliexpress ($19.39) →Check current price at Amazon ($22.99) →Check current price at Bhphotovideo →Search eBay for Soundcore Select 4 Go →

As an eBay Partner, we may be compensated if you make a purchase.