Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Monster Bluetooth Speaker ranks #31 of 47 small speakers by sound quality at $19.99; the Xdobo X8 ranks #127 of 144 medium speakers by sound quality at $35.
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. Watch for: Its tiny 36mm driver has very limited bass (about 95Hz at -10dB), elevated mids and rolled-off highs.
Why pick the Xdobo X8: A compact 860g speaker with a useful practical feature set: IPX5 splash resistance, USB-C charging, aux and microSD playback, speakerphone and TWS pairing. The catch: The single full-range driver is the limitation.
Buy the Monster Bluetooth Speaker at $19.99 for a small speaker, or the Xdobo X8 at $35 for a medium speaker instead.
There is a real battery-life gap here: the Xdobo X8 is rated for 15 hours, the Monster Bluetooth Speaker only 6.5 hours.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Monster Bluetooth Speaker | Xdobo X8 | |
|---|---|---|
| Price | $19.99 | $35 |
| Ranked | #31 of 47 in Small Size Portable Bluetooth Speakers | #127 of 144 in Medium Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 95Hz | ~65Hz |
| Battery Life | 6.5 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| EQ | No | Yes (multiple modes) |
| IP Rating | IPX7 | IPX5 |
| MicroSD Playback | Yes | Yes |
| Party Mode | No | - |
| Power Bank | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 0.4 lbs (185 g) | 1.9 lbs (860 g) |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes | Yes |
| Amplifier Power | 5W | 60W |
| Dimensions | Specifications vary by model | 8.7” x 3.7” x 2.8” (220 x 95 x 72 mm) |
| Drivers | 1.4” (36mm) full-range driver | 66mm full-range driver |
| Digital Aux Input | No | No |
| Strap | Yes (carabiner hook, suction cup) | - |
| Bluetooth Version | - | 5.0 |
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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
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.
- Head-to-Head Comparisons
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- Monster Bluetooth Speaker vs Sony SRS-XB100
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Xdobo X8: $35 eBay
Pros: A compact 860g speaker with a useful practical feature set: IPX5 splash resistance, USB-C charging, aux and microSD playback, speakerphone and TWS pairing. Reviews consistently find it surprisingly loud and full-bodied for the size, making it a plausible inexpensive outdoor/background-music option. Measured bass extension of ~65Hz (-10dB).
Cons: The single full-range driver is the limitation. Reviews note a harsh midrange, rolled-off treble and audible distortion, while bass extension is only about 65Hz. It can play loud, but it does not have the clarity or control for attentive listening.
Full Xdobo X8 review and specifications →
| Amplifier Power | 60W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~65Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.7” x 3.7” x 2.8” (220 x 95 x 72 mm) |
| Drivers | 66mm full-range driver |
| EQ | Yes (multiple modes) |
| IP Rating | IPX5 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.9 lbs (860 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons