Short answer: the Turtlebox Ranger, if you are buying new. The Bogasing M4 ranks higher than it (#28 vs #65 of 164 medium speakers, 4.0/5 vs 3.5/5) but is discontinued, so only consider it used; the Turtlebox Ranger is still sold new at $250.
The Bogasing M4 is the better-sounding, longer-running option. Super Bass mode gives the most balanced sound. It is rated for 24 hours of battery against 12 for the Turtlebox Ranger. At 1.6 lbs (731 g) it weighs noticeably less than the Turtlebox Ranger at 2.4 lbs (1.09 kg). It keeps a wired aux input, which the Turtlebox Ranger lacks. The catch: It sounds a bit harsh and thin.
What the Turtlebox Ranger does well: Smoother frequency response than the other Turtlebox speakers. Watch for: Bass sounds kind of thuddy and isn’t as deep as higher ranked speakers.
Buy the Turtlebox Ranger new; the Bogasing M4 is no longer sold new, so it only makes sense as a used find.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Bogasing M4 | Turtlebox Ranger | |
|---|---|---|
| Price | $45.99 Discontinued | $250.00 |
| Ranked | #28 of 164 in Medium Size Portable Bluetooth Speakers | #65 of 164 in Medium Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 54Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 12+ hours (Manufacturer specified) |
| EQ | No | No |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 150ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | - |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.6 lbs (731 g) | 2.4 lbs (1089 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.4 |
| Amplifier Power | 40W | - |
| Drivers | 52mm speaker unit | 2” (51mm) woofers |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC (inferred; additional codecs unverified) |
| Dimensions | 3.1”H x 8.4”W x 2.5”D (80 x 214 x 63 mm) | 9.5” x 3.1” x 3.1” (241 x 80 x 80 mm) |
| Party Mode | - | Yes (Turtlebox Party Mode) |
| Power Bank | - | Yes (USB-C) |
| Strap | - | No |
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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
Bogasing M4: $45.99 Discontinued eBay
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.
Full Bogasing M4 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 54Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Latency | 150ms |
| Bluetooth Version | 5.0 |
| Digital Aux Input | No |
| Dimensions | 3.1”H x 8.4”W x 2.5”D (80 x 214 x 63 mm) |
| Drivers | 52mm speaker unit |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.6 lbs (731 g) |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Bogasing M4 Review - vs JBL Charge 5 & Motion Plus - a new contender? More from alanrossreviews →
- Alan Ross Reviews: Bose Soundlink Flex vs Soundcore Boost vs Bogasing M4 - cheap or Bose?
- Alan Ross Reviews: Bogasing M4 or Soundcore Boost or Maxsound Plus for $50 champion?? 🤷♀️
- Alan Ross Reviews: Tronsmart Element Force review vs Bogasing M4 - cheap speaker 🤑
- Head-to-Head Comparisons
Turtlebox Ranger: $250.00 Amazon eBay
Pros: Smoother frequency response than the other Turtlebox speakers. Has magnets for attaching it to things. Appears to be quite tough
Cons: Bass sounds kind of thuddy and isn’t as deep as higher ranked speakers. Overpriced. Heavy for the size, likely due to the toughness
Full Turtlebox Ranger review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Battery Life | 12+ hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.4 |
| Digital Aux Input | No |
| Dimensions | 9.5” x 3.1” x 3.1” (241 x 80 x 80 mm) |
| Drivers | 2” (51mm) woofers |
| EQ | No |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Turtlebox Party Mode) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | Yes |
| Weight | 2.4 lbs (1089 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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