Short answer: the B&O Beosound A1 2nd gen if sound quality matters most, the Bogasing M5 if price matters most. The B&O Beosound A1 2nd gen ranks #10 of 142 medium speakers at $395. The Bogasing M5 ranks #55 at $45.59, $349.41 cheaper.
What the Bogasing M5 offers: Compact enough for a backpack side pocket at under 1.7 lb. Up to 30 hours of battery life. USB-C charging - no proprietary cable to lose. Watch for: Front/rear driver configuration. Use bass mode for the flattest response. Sounds thin in the midrange. Hot treble and rolled off bass in default mode. Treble a bit rolled off in bass mode.
What the B&O Beosound A1 2nd gen offers: B&O Beosound A1 2nd gen uses 3.5mm aluminium driver + 0.75 inch silk dome tweeter. Its 558 g, claimed 18 hours (Manufacturer specified) battery life, IP67 protection, up to 93dB and mono playback make it a practical option for its intended room or portable use. Watch for: Bass is limited by its 58Hz specification.
Buy the Bogasing M5 if the price matters more than sound quality. Buy the B&O Beosound A1 2nd gen if sound quality matters more than the price.
If battery life is a priority, the Bogasing M5 is rated for 30 hours versus 18 hours for the B&O Beosound A1 2nd gen.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bogasing M5 | B&O Beosound A1 2nd gen | |
|---|---|---|
| Price | $45.59 | $395.00 |
| Ranked | #55 of 142 in Medium Size Portable Bluetooth Speakers | #10 of 142 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 61Hz | 58Hz |
| Battery Life | 30 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| IP Rating | IPX7 | IP67 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 93dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes | - |
| Power Bank | Yes (USB-A) | No |
| Stereo | No (front/rear drivers) | No |
| Omnidirectional | Yes | Pointing up |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 1.7 lbs (757 g) | 1.2 lbs (558 g) |
| Bluetooth Version | 5.3 | - |
| Dimensions | 6.3" x 3" x 2.8" (160 x 76 x 71 mm) | - |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | - |
| Drivers | 30W system | 3.5mm aluminium driver + 0.75 inch silk dome tweeter |
| Digital Aux Input | No | Yes (USB-C) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, AAC, aptX Adaptive |
| App | - | Yes |
| Built-in Microphone | - | Yes |
| EQ | - | Yes |
| Bluetooth Latency | - | 90ms |
| Power Input | - | USB-C |
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Prices on this page were last checked September 16, 2026 at 12:41 AM 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
Bogasing M5: $45.59 Amazon eBay
Pros: Compact enough for a backpack side pocket at under 1.7 lb. Up to 30 hours of battery life. USB-C charging - no proprietary cable to lose. Measured bass extension of 61Hz (-10dB).
Cons: Front/rear driver configuration. Use bass mode for the flattest response. Sounds thin in the midrange. Hot treble and rolled off bass in default mode. Treble a bit rolled off in bass mode.
Full Bogasing M5 review and specifications →
| Amplifier Power | 40W |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 61Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 6.3" x 3" x 2.8" (160 x 76 x 71 mm) |
| Drivers | 30W system |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | Yes |
| Power Bank | Yes (USB-A) |
| Stereo | No (front/rear drivers) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 1.7 lbs (757 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
B&O Beosound A1 2nd gen: $395.00 Amazon eBay
Pros: B&O Beosound A1 2nd gen uses 3.5mm aluminium driver + 0.75 inch silk dome tweeter. Its 558 g, claimed 18 hours (Manufacturer specified) battery life, IP67 protection, up to 93dB and mono playback make it a practical option for its intended room or portable use. Measured bass extension of 58Hz (-10dB).
Cons: Bass is limited by its 58Hz specification.
Full B&O Beosound A1 2nd gen review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 58Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive |
| Bluetooth Latency | 90ms |
| Built-in Microphone | Yes |
| Digital Aux Input | Yes (USB-C) |
| Drivers | 3.5mm aluminium driver + 0.75 inch silk dome tweeter |
| EQ | Yes |
| IP Rating | IP67 |
| Maximum SPL | 93dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.2 lbs (558 g) |
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