Short answer: the Ultimate Ears Roll 2. It ranks #125 of 136 medium speakers by sound quality at $100; the Ultimate Ears Megaboom 4 ranks #132 and costs $200, which makes this an easy call rather than a real tradeoff.
What the Ultimate Ears Roll 2 offers: Thin, flat profile fits easily in a bag or purse; light at 0.73 lb. Built-in bungee cord for hanging from a hook, nail, or door handle. Life-resistant waterproof/dustproof shell. Watch for: Not stereo. Barely any bass, rolled off treble off axis
What the Ultimate Ears Megaboom 4 offers: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together. Watch for: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Buy the Ultimate Ears Roll 2. It ranks higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, which settles it without a real tradeoff to make.
If sound quality matters at all to you, skip both of these and look higher up the 136 medium speakers instead.
There is a real battery-life gap here: the Ultimate Ears Megaboom 4 is rated for 20 hours, the Ultimate Ears Roll 2 only 9 hours.
Specifications Side By Side
| Ultimate Ears Roll 2 | Ultimate Ears Megaboom 4 | |
|---|---|---|
| Price | $100 | $200 |
| Ranked | #125 of 136 in Medium Size Portable Bluetooth Speakers | #132 of 136 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 9 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Weight | 0.7 lbs / 330 g | 2.4 lbs / 1.1 kg |
| IP Rating | IPX7 | IP67 |
| Bluetooth Version | 4.0 | 5.1 |
| Dimensions | 5.9" x 5.3" x 1.6" (149.5 x 135 x 40 mm) | 3.4" x 3.4" x 8.9" (87 x 87 x 225 mm) |
| Drivers | 1x 2" full-range + 2x 0.75" tweeters | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| TWS | No | Yes |
| App | Yes (UE Roll app) | Yes |
| Built in Microphone | No | No |
| Power Input | Micro USB | USB-C |
| Aux Input | Yes | - |
| Digital Aux Input | No | No |
| Omnidirectional | No | Yes |
| Party Mode | - | Yes (PartyUp up to 50 speakers) |
| Stereo | - | No |
| EQ | - | Yes (via app) |
| Max Volume | - | 91dB |
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Prices on this page were last checked August 27, 2026 at 10:09 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
Ultimate Ears Roll 2: $100 eBay
Pros: Thin, flat profile fits easily in a bag or purse; light at 0.73 lb. Built-in bungee cord for hanging from a hook, nail, or door handle. Life-resistant waterproof/dustproof shell.
Cons: Not stereo. Barely any bass, rolled off treble off axis
Full Ultimate Ears Roll 2 review and specifications →
| App | Yes (UE Roll app) |
|---|---|
| Aux Input | Yes |
| Battery Life | 9 hours (Manufacturer specified) |
| Bluetooth Version | 4.0 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 5.9" x 5.3" x 1.6" (149.5 x 135 x 40 mm) |
| Drivers | 1x 2" full-range + 2x 0.75" tweeters |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Input | Micro USB |
| TWS | No |
| Weight | 0.7 lbs / 330 g |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Roll 2 vs EFM Toledo
- Ultimate Ears Roll 2 vs Beats Pill+
- Ultimate Ears Roll 2 vs Skullcandy Terrain/Terrain XT/Terrain XL
- Ultimate Ears Roll 2 vs Harman Kardon Esquire 2
- Ultimate Ears Roll 2 vs Tribit Stormbox Mini
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- Ultimate Ears Roll 2 vs Sony SRS-XE200
- Ultimate Ears Roll 2 vs Tribit Stormbox Mini+
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Ultimate Ears Megaboom 4: $200 Amazon eBay
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 |
|---|---|
| Battery Life | 20 hours (Manufacturer specified) |
| 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 |
| Max Volume | 91dB |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 2.4 lbs / 1.1 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs Sony ULT Field 1 😧 $200 vs $128 Cylinder Bluetooth Speaker Matchup More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs W-King D320 🔋Does Paying More Get You Less? 😧
- Reddit Search for Ultimate Ears Megaboom 4 Review
- Head-to-Head Comparisons
- Ultimate Ears Megaboom 4 vs Doss Soundbox
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- Ultimate Ears Megaboom 4 vs Skullcandy Terrain/Terrain XT/Terrain XL
- Ultimate Ears Megaboom 4 vs Beats Pill+
- Ultimate Ears Megaboom 4 vs Harman Kardon Esquire 2
- Ultimate Ears Megaboom 4 vs Tribit Stormbox Mini
- Ultimate Ears Megaboom 4 vs Sony SRS-XE200
- See all 75 comparisons