Short answer: the Bose Soundlink Flex 2nd gen. It ranks #37 of 166 medium speakers by sound quality, rated 3.8/5, at $99; the Turtlebox Ranger ranks #65, rated 3.5/5, and costs $250, so there is little reason to consider the other one.
Why pick the Turtlebox Ranger: Smoother frequency response than the other Turtlebox speakers. The catch: Bass sounds kind of thuddy and isn’t as deep as higher ranked speakers.
The Bose Soundlink Flex 2nd gen is the 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 much less than the Turtlebox Ranger at 2.4 lbs (1.09 kg). It has an adjustable EQ, which the Turtlebox Ranger lacks. The catch: 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.
Buy the Bose Soundlink Flex 2nd gen. It is rated higher for sound quality than the Turtlebox Ranger and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Turtlebox Ranger | Bose Soundlink Flex 2nd gen | |
|---|---|---|
| Price | $250.00 | $99.00 |
| Ranked | #65 of 166 in Medium Size Portable Bluetooth Speakers | #37 of 166 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 12+ hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 9.5” x 3.1” x 3.1” (241 x 80 x 80 mm) | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) |
| Drivers | 2” (51mm) woofers | 60mm full-range driver with passive radiators |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Turtlebox Party Mode) | Yes (Bose Party mode) |
| Power Bank | Yes (USB-C) | - |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 2.4 lbs (1089 g) | 1.3 lbs (586 g) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, AAC, aptX Adaptive |
| App | No | Yes |
| EQ | No | Yes (3 band) |
| Power Input | USB-C | USB-C |
| Aux Input | No | No |
| Strap | No | Yes (built-in loop) |
| Built-in Microphone | - | Yes |
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Prices on this page were last checked October 9, 2026 at 8:01 AM 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
Turtlebox Ranger: $250.00 Amazon eBay
Same family: the Turtlebox Cub (smaller model, rated 3/5), the Turtlebox Gen 3 (larger model, rated 2.1/5) and the Turtlebox Grande (larger model, rated 2.6/5). See every Turtlebox generation.
Pros: Smoother frequency response than the other Turtlebox speakers. Has magnets for attaching it to things. Appears to be quite tough
Cons: Bass sounds kind of thuddy and isn’t as deep as higher ranked speakers. Overpriced. Heavy for the size, likely due to the toughness
Full Turtlebox Ranger review and specifications →
| Released | Feb 2025 (1 year ago) |
|---|---|
| App | No |
| Aux Input | No |
| Battery Life | 12+ hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.4 |
| Digital Aux Input | No |
| Dimensions | 9.5” x 3.1” x 3.1” (241 x 80 x 80 mm) |
| Drivers | 2” (51mm) woofers |
| EQ | No |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Turtlebox Party Mode) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | Yes |
| Weight | 2.4 lbs (1089 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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Bose Soundlink Flex 2nd gen: $99.00 Amazon 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 →
- 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?? More from CEONTHEMAKING →
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
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