Short answer: the Bose Soundlink Flex 2nd gen. It ranks #37 of 175 medium speakers by sound quality (rated 3.8/5) at $99.99 and is still sold new; the JBL Charge Essential ranks #92 (rated 3.2/5) and is discontinued, so it is only an option used. The JBL Charge Essential’s replacement, the JBL Charge Essential 3 SE, is rated 3.7/5 at $199.95.
The Bose Soundlink Flex 2nd gen is the better-sounding, lighter pick. A very portable 1.3 lbs (586 g), IP67-rated speaker with a clear, well-balanced midrange that keeps voices and instruments intelligible. At 1.3 lbs (586 g) it weighs noticeably less than the JBL Charge Essential at 1.7 lbs (770 g). It has an adjustable EQ, which the JBL Charge Essential lacks. It charges over USB-C rather than Micro USB. Watch for: One Flex remains mono and cannot deliver genuine low-bass rumble; RTINGS also found the elevated treble can turn hi-hats and other high-frequency detail piercing.
The JBL Charge Essential is the longer-running pick. Doubles as a power bank. It is rated for 20 hours of battery against 12 for the Bose Soundlink Flex 2nd gen. Watch for: Less clarity than the JBL Flip 4, highs rolled off.
Buy the Bose Soundlink Flex 2nd gen. It is rated higher for sound quality; the JBL Charge Essential is no longer sold new.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | JBL Charge Essential | |
|---|---|---|
| Price | $99.99 | $73.99 Discontinued |
| Ranked | #37 of 175 in Medium Size Portable Bluetooth Speakers | #92 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | Yes (3 band) | No |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Bose Party mode) | Yes (Connect+ up to 100 speakers) |
| Power Input | USB-C | Micro USB |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 1.3 lbs (586 g) | 1.7 lbs (770 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 4.1 |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) | 8.4” x 3.5” x 3.4” (213 x 89 x 87 mm) |
| Aux Input | No | No |
| Drivers | 60mm full-range driver with passive radiators | 2x 50mm fullrange |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | SBC (inferred; additional codecs unverified) |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | No |
| Power Bank | - | Yes (USB-A, 5V/2A) |
| Frequency Response | - | 65Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 20W RMS |
Related Speaker Comparisons
More worthwhile head-to-heads for Bose Soundlink Flex 2nd gen:
- Bose Soundlink Flex 2nd gen vs EarFun Uboom L
- Bose Soundlink Flex 2nd gen vs Soundcore Motion 300
- Bose Soundlink Flex 2nd gen vs Soundcore Motion+
- Bose Soundlink Flex 2nd gen vs Soundcore Boost “upgraded” 2021
- Bose Soundlink Flex 2nd gen vs Minirig 4
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Bose Soundlink Flex 2nd gen: $99.99 Amazon $99.99 eBay
Older model: the Bose Soundlink Flex (ranked lower, rated 3.8/5). See every Bose SoundLink Flex, Micro, Max and Plus generation.
Same family: the Bose SoundLink Max (larger model, rated 4.3/5), the Bose Soundlink Micro 2 (larger model, rated 3.6/5) and the Bose SoundLink Plus (larger model, rated 4.2/5).
Pros: A very portable 586g, IP67-rated speaker with a clear, well-balanced midrange that keeps voices and instruments intelligible. The second generation adds a Bose app with 3-band EQ, better-placed controls and stereo pairing with another Bose Soundlink Flex 2nd gen. It supports AAC and aptX Adaptive in addition to SBC, making it a stronger wireless option than most small rivals.
Cons: One Flex remains mono and cannot deliver genuine low-bass rumble; RTINGS also found the elevated treble can turn hi-hats and other high-frequency detail piercing. The claimed battery life is only 12 hours, and some owners report accelerated standby drain after firmware updates. It is expensive for its size, so the added app and codec support, not a transformational sound upgrade over the original, are the main reasons to choose it.
Full Bose Soundlink Flex 2nd gen review and specifications →
| Released | Sep 2024 (2 years ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| 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 |
| Strap | Yes (built-in loop) |
| 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 →
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen & Soundcore Motion 300 sound test
- Oluv Patreon: Bose Soundlink Flex 2nd gen - sound demo
- Alan Ross: Hall of Fame classic vs latest Bose tech! More from alanrossreviews →
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
- Alan Ross - The Anti Shill!: DBSONO X-Blast F37 vs Bose Soundlink Flex 2 - They all want to be me 😊
- Mateusz Cholewa: JBL Charge Essential 3 SE vs BOSE SoundLink FLEX 2 More from Mateusz Cholewa →
- CEONTHEMAKING: Bose Soundlink Flex 2nd Gen VS Marshall Emberton III - What’s NEW?? More from CEONTHEMAKING →
- Tô Thái Trí Hùng: Unbox & Sound Test - Bose Soundlink Flex 2
- Musou1: JBL flip 7 vs KEF muo vs Bose flex 2
- Head-to-Head Comparisons
- Bose Soundlink Flex 2nd gen vs Bose Soundlink Flex
- Bose Soundlink Flex 2nd gen vs Tribit Xsound Plus 2
- Bose Soundlink Flex 2nd gen vs JBL Charge Essential 2
- Bose Soundlink Flex 2nd gen vs Teufel Rockster XS
- Bose Soundlink Flex 2nd gen vs Huawei Sound Joy
- Bose Soundlink Flex 2nd gen vs Cleer Audio Scene
- Bose Soundlink Flex 2nd gen vs Soundcore Boom 3i
- Bose Soundlink Flex 2nd gen vs JBL Charge Essential 3 SE
- See all 146 comparisons
JBL Charge Essential: $73.99 Discontinued Amazon $73.99 eBay
Newer model: the JBL Charge Essential 3 SE, ranked higher, rated 3.7/5, released Apr 2026. See every JBL Charge Essential generation.
Pros: Doubles as a power bank. IPX7 rated. Supports true wireless stereo pairing with a second Charge Essential.
Cons: Less clarity than the JBL Flip 4, highs rolled off. An overpriced rebranded JBL Charge 3 for people who want stereo sound. Discontinued.
Full JBL Charge Essential review and specifications →
| Released | Jul 2020 (6 years ago) |
|---|---|
| Amplifier Power | 20W RMS |
| App | No |
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 4.1 |
| Digital Aux Input | No |
| Dimensions | 8.4” x 3.5” x 3.4” (213 x 89 x 87 mm) |
| Drivers | 2x 50mm fullrange |
| EQ | No |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | Micro USB |
| Stereo | No |
| Strap | No |
| TWS | No |
| Weight | 1.7 lbs (770 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Charge Essential vs JBL Charge 3
- JBL Charge Essential vs JBL Charge 2
- JBL Charge Essential vs JBL Flip Essential
- JBL Charge Essential vs Teufel Rockster Go 2
- JBL Charge Essential vs Sonos Roam 2
- JBL Charge Essential vs Sonos Roam
- JBL Charge Essential vs KEF Muo gen2
- JBL Charge Essential vs Tronsmart Mirtune C3 Plus
- See all 127 comparisons