Short answer: the Bose Soundlink Flex 2nd gen on measured sound quality, the Ultimate Ears Roll 2 on price. The Bose Soundlink Flex 2nd gen ranks #33 of 136 medium speakers at $159. The Ultimate Ears Roll 2 ranks #125 at $100, $59 cheaper.
What the Bose Soundlink Flex 2nd gen offers: Pretty much identical sounding to the 1st gen Watch for: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail. Self drains the battery about 10% a week.
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
Buy the Bose Soundlink Flex 2nd gen when sound quality outweighs the price for you, and the Ultimate Ears Roll 2 when the price outweighs sound quality instead.
If sound quality matters at all to you, skip the Ultimate Ears Roll 2. It ranks near the bottom of the 136 medium speakers, so look higher up the list instead.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Ultimate Ears Roll 2 | |
|---|---|---|
| Price | $159.00 | $100 |
| Ranked | #33 of 136 in Medium Size Portable Bluetooth Speakers | #125 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (UE Roll app) |
| Battery Life | 12 hours (Manufacturer specified) | 9 hours (Manufacturer specified) |
| Built in Microphone | Yes | No |
| EQ | Yes (3 band) | - |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Bose Party mode) | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | - |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 1.3 lbs / 586 g | 0.7 lbs / 330 g |
| Bluetooth Version | 5.3 | 4.0 |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) | 5.9" x 5.3" x 1.6" (149.5 x 135 x 40 mm) |
| Aux Input | No | Yes |
| Drivers | 60mm full-range driver with passive radiators | 1x 2" full-range + 2x 0.75" tweeters |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | - |
| Digital Aux Input | No | No |
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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
Bose Soundlink Flex 2nd gen: $159.00 Amazon eBay
Pros: Pretty much identical sounding to the 1st gen
Cons: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail. Self drains the battery about 10% a week.
Full Bose Soundlink Flex 2nd gen review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) |
| Drivers | 60mm full-range driver with passive radiators |
| EQ | Yes (3 band) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs / 586 g |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex More from Oluv’Sone →
- Oluv Patreon: Bose Soundlink Flex 2nd gen - sound demo
- Tô Thái Trí Hùng: Unbox & Sound Test - Bose Soundlink Flex 2
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen & Soundcore Motion 300 sound test
- Alan Ross: Hall of Fame classic vs latest Bose tech! More from alanrossreviews →
- CEONTHEMAKING: Bose Soundlink Flex 2nd Gen VS Marshall Emberton III - What’s NEW??
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
- Reddit Search for Bose Soundlink Flex 2nd gen Review
- Head-to-Head Comparisons
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- Bose Soundlink Flex 2nd gen vs Soundcore Motion 100
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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 |
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