Short answer: the Bose Soundlink Flex. It ranks #34 of 136 medium speakers by sound quality at $84.99; the Sony SRS-XB30 ranks #104 and costs $199, so there is little reason to consider the other one.
What the Bose Soundlink Flex offers: IP67 rated; rugged enough to survive drops from several feet and floats. Around 12 hours of battery at moderate volume. Watch for: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail
What the Sony SRS-XB30 offers: IPX5 rated. Doubles as a power bank for charging your phone. Long claimed battery life (up to 24 hours at moderate volume). Watch for: Muffled sound, worse than a XB20
Buy the Bose Soundlink Flex. It ranks higher for sound quality than the Sony SRS-XB30 and costs less, so the other one has nothing left to offer.
The Sony SRS-XB30 is not a sound-quality pick. It sits near the bottom of the 136 medium speakers; there are better options higher up.
If battery life is a priority, the Sony SRS-XB30 is rated for 24 hours versus 12 hours for the Bose Soundlink Flex.
Specifications Side By Side
| Bose Soundlink Flex | Sony SRS-XB30 | |
|---|---|---|
| Price | $84.99 | $199 |
| Ranked | #34 of 136 in Medium Size Portable Bluetooth Speakers | #104 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Sony Music Center) |
| Bass Extension (-10dB) | 56Hz | 55Hz |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built in Microphone | Yes | Yes |
| EQ | No | - |
| IP Rating | IP67 | IPX5 |
| Bluetooth Latency | 33ms | - |
| Max Volume | 96dB | 95dB |
| Party Mode | Yes (Bose Party mode) | Yes (Partychain up to 100 speakers) |
| Power Input | USB-C | Micro USB |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs / 589 g | 2.2 lbs / 1000 g |
| Bluetooth Version | 4.2 | 4.2 |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) | 9" x 3.2" x 3.4" (228 x 82 x 86 mm) |
| Drivers | 1x 60mm full-range driver + 2x passive radiators | 2x 48mm full-range drivers + 2x passive radiators |
| Digital Aux Input | No | No |
| Aux Input | - | Yes |
| Bluetooth Codecs | - | SBC, AAC, LDAC |
| Output Power | - | 20W |
Related Speaker Comparisons
Other pairings from the same speaker class worth checking:
- Bose Soundlink Flex 2nd gen vs Bose Soundlink Mini
- Bose Soundlink Flex 2nd gen vs Sony SRS-XB20
- Soundcore Flare 2 vs Harman Kardon Esquire 2
- Bose Soundlink Flex vs JBL Pulse 5
- JBL Charge 6 vs Bose Soundlink Flex
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: $84.99 Amazon eBay
Pros: IP67 rated; rugged enough to survive drops from several feet and floats. Around 12 hours of battery at moderate volume.
Cons: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail
Full Bose Soundlink Flex review and specifications →
| App | Yes |
|---|---|
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Latency | 33ms |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) |
| Drivers | 1x 60mm full-range driver + 2x passive radiators |
| EQ | No |
| IP Rating | IP67 |
| Max Volume | 96dB |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs / 589 g |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex More from Oluv’Sone →
- Alan Ross Reviews: Bose Soundlink Flex Review! vs JBL Flip 6 and JBL Charge 5. Travel heaven?? 🤞 More from alanrossreviews →
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex
- Alan Ross Reviews: Beats Pill vs Harman Luna vs Bose Flex vs Soundcore Motion Plus
- Alan Ross Reviews: Tribit Xsound Mega vs the world! (JBL Charge 5, Bose Flex, Sony XB33, LG PL7) 👍
- Alan Ross Reviews: Bose Soundlink Flex vs Soundcore Boost vs Bogasing M4 - cheap or Bose?
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but………..
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex “Inspired” Speakers More from JaysStraightUpReviews →
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Alan Ross Reviews: Bose Soundlink Flex or JBL Flip 6 (eq adjusted) or Denon Envaya - best speaker for travel!
- Alan Ross Reviews: Bose Soundlink Flex or Beosound A1 (1st gen) - ultimate compact speaker 😇
- Alan Ross Reviews: Bose Soundlink Flex or JBL Flip 6 (eq adjusted) or Denon Envaya - best speaker for travel!
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex “Inspired” Speakers
- Patricio Benadon: Bose SoundLink Flex vs. Mini 2 SE. Music audio quality sound test. Listen 4 different genres!
- Patricio Benadon: Bose SoundLink Flex vs. Mini 2 SE. Music audio quality sound test. Listen 4 different genres!
- Danny Pops: BEST Bose Speaker?? Bose Soundlink Flex vs micro, Color II, and revolve + More from DannyPops →
- Alan Ross Reviews: Bose Soundlink Flex vs Minirig MK3 and Marshall Emberton - best bluetooth speaker?
- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best?
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
- Reddit Search for Bose Soundlink Flex Review
- Head-to-Head Comparisons
- Bose Soundlink Flex vs Bose Soundlink Flex 2nd gen
- Bose Soundlink Flex vs JBL Charge Essential 2
- Bose Soundlink Flex vs Tribit Xsound Plus 2
- Bose Soundlink Flex vs Teufel Rockster XS
- Bose Soundlink Flex vs Soundcore Motion 100
- Bose Soundlink Flex vs Tribit Stormbox Pro
- Bose Soundlink Flex vs Soundcore Boom 3i
- Bose Soundlink Flex vs Xiaomi Sound Outdoor
- See all 77 comparisons
Sony SRS-XB30: $199 eBay
Pros: IPX5 rated. Doubles as a power bank for charging your phone. Long claimed battery life (up to 24 hours at moderate volume).
Cons: Muffled sound, worse than a XB20
Full Sony SRS-XB30 review and specifications →
| App | Yes (Sony Music Center) |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9" x 3.2" x 3.4" (228 x 82 x 86 mm) |
| Drivers | 2x 48mm full-range drivers + 2x passive radiators |
| IP Rating | IPX5 |
| Max Volume | 95dB |
| Omnidirectional | No |
| Output Power | 20W |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.2 lbs / 1000 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony SRS-XB30 vs Soundcore Flare 2
- Sony SRS-XB30 vs Teufel Rockster Go
- Sony SRS-XB30 vs W-King D8 Mini
- Sony SRS-XB30 vs Marshall Emberton II
- Sony SRS-XB30 vs B&O Beosound Explore
- Sony SRS-XB30 vs Marshall Emberton III
- Sony SRS-XB30 vs Bose SoundLink Color II
- Sony SRS-XB30 vs Tribit Stormbox Mini+
- See all 72 comparisons