These are not really the same size class, and that is the honest framing here. The Bogasing G4 ranks #25 of 144 medium speakers by sound quality at $38.29; the Monster Bluetooth Speaker ranks #31 of 47 small speakers by sound quality at $19.99.
What the Bogasing G4 does well: A 0.83kg travel-friendly speaker with 50W output, IPX7 protection, USB-C charging, aux and microSD playback, LC3 Bluetooth and TWS pairing. The catch: The upper treble is boosted and uneven, while the mids sit slightly behind the bass and highs, so it is not a neutral choice for vocal-focused music.
What the Monster Bluetooth Speaker does well: A very light, IPX7-rated mini speaker with USB-C charging, aux and microSD playback, speakerphone support and TWS pairing. The catch: Its tiny 36mm driver has very limited bass (about 95Hz at -10dB), elevated mids and rolled-off highs.
Buy the Bogasing G4 at $38.29 if you want a medium speaker. Buy the Monster Bluetooth Speaker at $19.99 if you want a small speaker instead.
If battery life is a priority, the Bogasing G4 is rated for 24 hours versus 6.5 hours for the Monster Bluetooth Speaker.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Bogasing G4 | Monster Bluetooth Speaker | |
|---|---|---|
| Price | $38.29 | $19.99 |
| Ranked | #25 of 144 in Medium Size Portable Bluetooth Speakers | #31 of 47 in Small Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Aux Latency | 16ms | - |
| Bass Extension (-10dB) | 56Hz | 95Hz |
| Battery Life | 24 hours (Manufacturer specified) | 6.5 hours (Manufacturer specified) |
| EQ | No | No |
| IP Rating | IPX7 | IPX7 |
| Bluetooth Latency | 90ms | - |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | Yes |
| Party Mode | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.8 lbs (0.83 kg) | 0.4 lbs (185 g) |
| Bluetooth Codecs | LE Audio with LC3 | SBC |
| Amplifier Power | 50W | 5W |
| Drivers | Two drivers and passive radiators | 1.4” (36mm) full-range driver |
| Bluetooth Version | 5.3 | - |
| Digital Aux Input | No | No |
| Dimensions | 8.9”H x 2.5”W x 3.4”D (225 x 64 x 86 mm) | Specifications vary by model |
| Power Bank | - | No |
| Built-in Microphone | - | Yes |
| Strap | - | Yes (carabiner hook, suction cup) |
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Prices on this page were last checked September 26, 2026 at 11:14 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
Bogasing G4: $38.29 Amazon eBay
Pros: A 0.83kg travel-friendly speaker with 50W output, IPX7 protection, USB-C charging, aux and microSD playback, LC3 Bluetooth and TWS pairing. It reaches a useful 100dB maximum level and has a measured 56Hz -10dB bass point, giving it more low-end presence than many speakers of this size. Measured bass extension of 56Hz (-10dB).
Cons: The upper treble is boosted and uneven, while the mids sit slightly behind the bass and highs, so it is not a neutral choice for vocal-focused music. It has no app or user EQ, and its Super Bass and Vocal modes offer little practical differentiation according to listening tests.
Full Bogasing G4 review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | No |
| Aux Input | Yes |
| Aux Latency | 16ms |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | LE Audio with LC3 |
| Bluetooth Latency | 90ms |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 8.9”H x 2.5”W x 3.4”D (225 x 64 x 86 mm) |
| Drivers | Two drivers and passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.8 lbs (0.83 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Monster Bluetooth Speaker: $19.99 Amazon eBay
Pros: A very light, IPX7-rated mini speaker with USB-C charging, aux and microSD playback, speakerphone support and TWS pairing. It is a convenient rugged travel speaker when water resistance and small size matter more than bass. Measured bass extension of 95Hz (-10dB).
Cons: Its tiny 36mm driver has very limited bass (about 95Hz at -10dB), elevated mids and rolled-off highs. It cannot deliver the scale, detail or battery endurance of stronger small-speaker rivals, and no app or EQ is available to improve the tuning.
Full Monster Bluetooth Speaker review and specifications →
| Amplifier Power | 5W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 95Hz |
| Battery Life | 6.5 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | Specifications vary by model |
| Drivers | 1.4” (36mm) full-range driver |
| EQ | No |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (carabiner hook, suction cup) |
| TWS | Yes |
| Weight | 0.4 lbs (185 g) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
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