Short answer: the Harman Kardon Luna 2. It ranks #23 of 144 medium speakers by sound quality, rated 4.1/5, at $199.95. The Ultimate Ears Roll 2 ranks #130, rated 2.2/5, at $100, $99.95 cheaper, not enough of a saving to outweigh the sound-quality gap.
Why pick the Harman Kardon Luna 2: Articulate, spacious midrange with precise imaging and instrument separation. The catch: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
The case for the Ultimate Ears Roll 2: Thin, flat profile fits easily in a bag or purse; light at 0.73 lb. The catch: Not stereo.
One note: the Ultimate Ears Roll 2 is no longer in production and isn’t widely stocked new anymore.
Buy the Harman Kardon Luna 2. It is rated higher for sound quality, and the $99.95 you would save on the Ultimate Ears Roll 2 does not close the gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Harman Kardon Luna 2 | Ultimate Ears Roll 2 | |
|---|---|---|
| Price | $199.95 | $100 Discontinued |
| Ranked | #23 of 144 in Medium Size Portable Bluetooth Speakers | #130 of 144 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (UE Roll app) |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 9 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| EQ | Yes (4 presets + custom) | Yes (5-band via UE ROLL app) |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 0.7 lbs (330 g) |
| Bluetooth Version | 5.4 | 4.0 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 5.9” x 5.3” x 1.6” (149.5 x 135 x 40 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 1x 2” full-range + 2x 0.75” tweeters |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | - |
| Digital Aux Input | No | No |
| Strap | No | - |
| Built-in Microphone | - | No |
| Discontinued | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Harman Kardon Luna 2:
- Harman Kardon Luna 2 vs Earfun Uboom L
- Harman Kardon Luna 2 vs Soundcore Motion 300
- Harman Kardon Luna 2 vs Minirig 4
- Harman Kardon Luna 2 vs B&O Beosound A1 2nd gen
- Harman Kardon Luna 2 vs JBL Charge 6
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Harman Kardon Luna 2: $199.95 Amazon B&H Photo Video eBay
Older model: the Harman Kardon Luna (rated 4/5).
Pros: Articulate, spacious midrange with precise imaging and instrument separation. Tight, well-controlled bass from the 62mm x 82mm woofer and passive radiator despite the compact body, and it stays cleaner at volume than pricier rivals like the Sonos Play. IP67 rated, and two units pair via AirTouch for true stereo sound.
Cons: Treble can sound bright and edgy, and it loses more output off-axis than some rivals. Some listeners hear mid-range rattling on certain tracks, similar to sibling JBL models. 12-hour battery life trails category leaders like the JBL Charge 6, which doubles it. Single unit is not stereo (1.1 driver layout).
Full Harman Kardon Luna 2 review and specifications →
| Amplifier Power | 40W (25W woofer + 15W tweeter) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Digital Aux Input | No |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter |
| EQ | Yes (4 presets + custom) |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | No |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 1.6 lbs (735 g) |
- Links
- Reviews, Comparisons and Sound Samples
- What Hi-Fi?: Harman Kardon Luna 2 review
- Joy & Oluv’Sone: Sonos Play & Harman Kardon Luna 2 - listening test More from Oluv’Sone →
- Mateusz Cholewa: Harman Kardon Luna 2 UNBOXING vs HK Luna Short Test More from Mateusz Cholewa →
- Storytripper HD: Harman Kardon Luna vs Luna 2 More from storytripperhd →
- Head-to-Head Comparisons
- Harman Kardon Luna 2 vs Harman Kardon Luna
- Harman Kardon Luna 2 vs Bogasing G4
- Harman Kardon Luna 2 vs Xiaomi Sound Party
- Harman Kardon Luna 2 vs JBL Charge 5 Wifi
- Harman Kardon Luna 2 vs JBL Charge 5
- Harman Kardon Luna 2 vs B&O Beosound A1 3rd gen
- Harman Kardon Luna 2 vs Soundcore Boom 3i
- Harman Kardon Luna 2 vs Miatone Boompro
- See all 89 comparisons
Ultimate Ears Roll 2: $100 Discontinued eBay
Newer model: the Ultimate Ears Miniroll, rated 3.9/5.
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. Discontinued.
Full Ultimate Ears Roll 2 review and specifications →
| App | Yes (UE Roll app) |
|---|---|
| Aux Input | Yes |
| Battery Life | 9 hours (Manufacturer specified) |
| 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) |
| Discontinued | Yes |
| 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) |
- 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
- Ultimate Ears Roll 2 vs EFM Toledo
- Ultimate Ears Roll 2 vs Beats Pill+
- Ultimate Ears Roll 2 vs Skullcandy Terrain
- Ultimate Ears Roll 2 vs Harman Kardon Esquire 2
- Ultimate Ears Roll 2 vs Tribit Stormbox Mini
- Ultimate Ears Roll 2 vs Ultimate Ears Megaboom 4
- Ultimate Ears Roll 2 vs Zealot S61
- Ultimate Ears Roll 2 vs Sony SRS-XE200
- See all 82 comparisons