Short answer: both are discontinued, so this only matters if you are buying used. Used, the JBL Flip 4 is the better pick: it ranks #83 of 175 medium speakers by sound quality (rated 3.3/5), against #161 (rated 2.2/5) for the Ultimate Ears Roll 2. If you want one new, the JBL Flip 7 replaces the JBL Flip 4 and is rated 4.2/5 at $89.95.
The JBL Flip 4 is the better-sounding pick. At 1.1 lbs (510 g), JBL Flip 4 combines 2x 40mm fullrange with Bluetooth and aux. It plays in stereo from a single unit, unlike the Ultimate Ears Roll 2. The tradeoff: Battery failures are common.
The Ultimate Ears Roll 2 is the lighter choice. Thin, flat profile fits easily in a bag or purse. At 0.7 lbs (330 g) it weighs noticeably less than the JBL Flip 4 at 1.1 lbs (510 g). It has an adjustable EQ, which the JBL Flip 4 lacks. The catch: Barely any bass, rolled off treble off axis.
Buy the JBL Flip 4 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, buy the JBL Flip 7, which replaces the JBL Flip 4.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Flip 4 | Ultimate Ears Roll 2 | |
|---|---|---|
| Price | $70 Discontinued | $100 Discontinued |
| Ranked | #83 of 175 in Medium Size Portable Bluetooth Speakers | #161 of 175 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 66Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 9 hours (Manufacturer specified) |
| Bluetooth Latency | 300ms | - |
| Party Mode | Yes (Connect+ up to 100 speakers) | - |
| Power Input | Micro USB | Micro USB |
| TWS | No | No |
| Weight | 1.1 lbs (510 g) | 0.7 lbs (330 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 4.0 |
| Drivers | 2x 40mm fullrange | 1x 2” full-range + 2x 0.75” tweeters |
| Dimensions | 6.9” x 2.8” x 2.6” (175 x 70 x 65 mm) | 5.9” x 5.3” x 1.6” (149.5 x 135 x 40 mm) |
| Frequency Response | 70Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 16W RMS | 10W |
| IP Rating | IPX7 | IPX7 |
| Maximum SPL | 92dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Omnidirectional | No | No |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| App | Yes | Yes (UE Roll app) |
| EQ | No | Yes (5-band via UE ROLL app) |
| Stereo | Yes | No |
| Strap | Yes (lanyard) | - |
| Built-in Microphone | - | No |
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Prices on this page were last checked October 12, 2026 at 4:13 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
JBL Flip 4: $70 Discontinued Amazon $70 eBay
Newer model: the JBL Flip 7, ranked higher, rated 4.2/5, released Mar 2025. See every JBL Flip generation.
Pros: At 510 g, JBL Flip 4 combines 2x 40mm fullrange with Bluetooth and aux. Claimed 12 hours (manufacturer specified) battery life, ipx7 protection, up to 92db and single-box playback make its feature set practical for its intended room or portable use. Measured bass extension of 66Hz (-10dB).
Cons: Bass is limited by its 66Hz specification. There is no companion app. No EQ adjustment. Battery failures are common. Discontinued.
Full JBL Flip 4 review and specifications →
| Released | Feb 2017 (9 years ago) |
|---|---|
| Amplifier Power | 16W RMS |
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 66Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 300ms |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 6.9” x 2.8” x 2.6” (175 x 70 x 65 mm) |
| Drivers | 2x 40mm fullrange |
| EQ | No |
| Frequency Response | 70Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 92dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| Strap | Yes (lanyard) |
| TWS | No |
| Weight | 1.1 lbs (510 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ultimate Ears Roll 2: $100 Discontinued eBay
Newer model: the Ultimate Ears Miniroll, rated 3.9/5, released Sep 2024. It adds built-in mic and stereo pairing, but drops the aux input, app control and adjustable EQ. Battery life goes from 9 to 12 hours. See every Ultimate Ears Roll generation.
Pros: Thin, flat profile fits easily in a bag or purse. 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. Discontinued.
Full Ultimate Ears Roll 2 review and specifications →
| Released | May 2016 (10 years ago) |
|---|---|
| Amplifier Power | 10W |
| App | Yes (UE Roll app) |
| Aux Input | Yes |
| Battery Life | 9 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| 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 |
| EQ | Yes (5-band via UE ROLL app) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Input | Micro USB |
| Stereo | No |
| TWS | No |
| Weight | 0.7 lbs (330 g) |
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