B&O Beosound A1 3rd gen vs Bogasing M4

Last updated: October 5, 2026

Short answer: the B&O Beosound A1 3rd gen. It ranks #19 of 164 medium speakers by sound quality (rated 4.1/5) at $299.99 and is still sold new; the Bogasing M4 ranks #28 (rated 4.0/5) and is discontinued, so it is only an option used.

B&O Beosound A1 3rd gen vs Bogasing M4

The B&O Beosound A1 3rd gen is the lighter option. Longer battery than the 2nd gen (~24 hours at sensible volumes). At 1.2 lbs (558 g) it weighs noticeably less than the Bogasing M4 at 1.6 lbs (731 g). It has an adjustable EQ, which the Bogasing M4 lacks. The catch: Distorts easier than the 2nd gen with deeper bass.

The case for the Bogasing M4: Super Bass mode gives the most balanced sound. It keeps a wired aux input, which the B&O Beosound A1 3rd gen lacks. It plays in stereo from a single unit, unlike the B&O Beosound A1 3rd gen. The tradeoff: It sounds a bit harsh and thin.

Buy the B&O Beosound A1 3rd gen. It is rated higher for sound quality, and the Bogasing M4 is discontinued, so it is only available used.

Still deciding? The full Portable Bluetooth rankings cover every ranked option.

Specifications Side By Side

B&O Beosound A1 3rd gen Bogasing M4
Price$299.99$45.99 Discontinued
Ranked#19 of 164 in Medium Size Portable Bluetooth Speakers#28 of 164 in Medium Size Portable Bluetooth Speakers
AppYesNo
Aux InputNoYes
Battery Life24 hours (Manufacturer specified)24 hours (Manufacturer specified)
Built-in MicrophoneYes-
EQYesNo
Power BankNo-
StereoNoYes
OmnidirectionalPointing upNo
TWSYesYes
Digital Aux InputYes (USB-C)No
Weight1.2 lbs (558 g)1.6 lbs (731 g)
BluetoothYesYes
Bluetooth CodecsSBC, AAC, aptX AdaptiveSBC (inferred; additional codecs unverified)
Bluetooth Version5.15.0
Dimensions5.2” x 1.8” x 5.2” (133 x 46 x 133 mm)3.1”H x 8.4”W x 2.5”D (80 x 214 x 63 mm)
Drivers82.5mm woofer, 15mm tweeter52mm speaker unit
IP RatingIP67IPX7
Amplifier Power60W40W
Power InputUSB-CUSB-C
StrapYes (built-in strap)-
Bass Extension (-10dB)-54Hz
Bluetooth Latency-150ms
Maximum SPL-99dB (measured by Alan Ross Reviews)
MicroSD Playback-Yes

How B&O Beosound A1 3rd gen compares with other leading options:

Prices on this page were last checked October 4, 2026 at 9:58 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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The Two Speakers In Full

B&O Beosound A1 3rd gen: $299.99 Amazon B&H Photo Video eBay

B&O Beosound A1 3rd gen ranking card

Older models: the B&O Beosound A1 2nd gen (ranked higher, rated 4.3/5) and the B&O Beosound A1 (ranked higher, rated 4.3/5).

Pros: Longer battery than the 2nd gen (~24 hours at sensible volumes). IP67 rated with a serviceable, replaceable battery: the first Bluetooth speaker with Cradle to Cradle certification. Multipoint connectivity and aptX Adaptive.

Cons: Distorts easier than the 2nd gen with deeper bass. Dipped area in the upper mids. Not as deep of bass as the 2nd gen

Amplifier Power60W
AppYes
Aux InputNo
Battery Life24 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC, AAC, aptX Adaptive
Bluetooth Version5.1
Built-in MicrophoneYes
Digital Aux InputYes (USB-C)
Dimensions5.2” x 1.8” x 5.2” (133 x 46 x 133 mm)
Drivers82.5mm woofer, 15mm tweeter
EQYes
IP RatingIP67
OmnidirectionalPointing up
Power BankNo
Power InputUSB-C
StereoNo
StrapYes (built-in strap)
TWSYes
Weight1.2 lbs (558 g)

Bogasing M4: $45.99 Discontinued eBay

Bogasing M4 ranking card

Newer model: the Bogasing M5, ranked lower, rated 3.5/5.

Pros: Bogasing M4 uses 52mm speaker unit. Its 731 g, claimed 24 hours (Manufacturer specified) battery life, IPX7 protection, aux input, up to 99dB and stereo playback make it a practical option for its intended room or portable use. Super Bass mode gives the most balanced sound. Measured bass extension of 54Hz (-10dB).

Cons: Bass is limited by its 54Hz specification. There is no companion app. No EQ adjustment. It sounds a bit harsh and thin. Discontinued.

Amplifier Power40W
AppNo
Aux InputYes
Bass Extension (-10dB)54Hz
Battery Life24 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC (inferred; additional codecs unverified)
Bluetooth Latency150ms
Bluetooth Version5.0
Digital Aux InputNo
Dimensions3.1”H x 8.4”W x 2.5”D (80 x 214 x 63 mm)
Drivers52mm speaker unit
EQNo
IP RatingIPX7
Maximum SPL99dB (measured by Alan Ross Reviews)
MicroSD PlaybackYes
OmnidirectionalNo
Power InputUSB-C
StereoYes
TWSYes
Weight1.6 lbs (731 g)
Top PickB&O Beosound A1 3rd genAmazon • $299.99
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