Short answer: the Ultimate Ears Megaboom 4, if you are buying new, though neither ranks well in its class. The EFM Toledo ranks higher than it (#152 vs #159 of 164 medium speakers, 2.2/5 vs 2.1/5) but is discontinued, so only consider it used; the Ultimate Ears Megaboom 4 is still sold new at $200. Both are rated below 3.0/5 among the 164 medium speakers, so if sound quality matters, consider the Earfun Uboom L instead, ranked #2 at $49.79.
The EFM Toledo is the lighter pick. A compact 1.1 lbs (500 g) speaker with dual drivers, IPX6 protection, speakerphone capability, TWS pairing and a claimed 15-hour battery life. At 1.1 lbs (500 g) it weighs much less than the Ultimate Ears Megaboom 4 at 2.4 lbs (1.1 kg). The catch: With only 10W output, bass is very limited and treble rolls off early, so music lacks the weight, detail and headroom of stronger portable speakers.
The Ultimate Ears Megaboom 4 is the longer-running choice. IP67 rated, floats, and finally uses USB-C charging. It is rated for 20 hours of battery against 15 for the EFM Toledo. It charges over USB-C rather than Micro USB. Watch for: A lot of distortion at higher volumes.
Buy the Ultimate Ears Megaboom 4 new; the EFM Toledo is no longer sold new, so it only makes sense as a used find.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| EFM Toledo | Ultimate Ears Megaboom 4 | |
|---|---|---|
| Price | $99 Discontinued | $200 |
| Ranked | #152 of 164 in Medium Size Portable Bluetooth Speakers | #159 of 164 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 15 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| IP Rating | IPX6 | IP67 |
| Built-in Microphone | Yes | No |
| TWS | Yes | Yes |
| Amplifier Power | 10W | - |
| Power Bank | No | - |
| Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| App | No | Yes |
| Drivers | 2x drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| Weight | 1.1 lbs (0.5 kg) | 2.4 lbs (1.1 kg) |
| Digital Aux Input | No | No |
| Omnidirectional | No | Yes |
| Dimensions | 3.9” x 3.9” x 9.1” (100 x 100 x 230 mm) | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Power Input | Micro USB | USB-C |
| Stereo | No | No |
| Party Mode | - | Yes (PartyUp up to 50 speakers) |
| Bluetooth Version | - | 5.1 |
| EQ | - | Yes (via app) |
| Maximum SPL | - | 91dB (Manufacturer specified) |
| Strap | - | Yes (built-in loop) |
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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
EFM Toledo: $99 Discontinued eBay
Pros: A compact 500g speaker with dual drivers, IPX6 protection, speakerphone capability, TWS pairing and a claimed 15-hour battery life. Its simple, rugged format makes it easy to carry for podcasts, background music and casual use around water.
Cons: With only 10W output, bass is very limited and treble rolls off early, so music lacks the weight, detail and headroom of stronger portable speakers. It has no aux input, app or EQ, and this discontinued model is best considered only if its compact weather-resistant design is the priority.
Full EFM Toledo review and specifications →
| Amplifier Power | 10W |
|---|---|
| App | No |
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.9” x 3.9” x 9.1” (100 x 100 x 230 mm) |
| Drivers | 2x drivers |
| IP Rating | IPX6 |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | Micro USB |
| Stereo | No |
| TWS | Yes |
| Weight | 1.1 lbs (0.5 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ultimate Ears Megaboom 4: $200 Amazon eBay
Older model: the Ultimate Ears Megaboom 3 (ranked higher, rated 3/5).
Pros: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together.
Cons: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Full Ultimate Ears Megaboom 4 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 91dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 2.4 lbs (1.1 kg) |
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