Bose Soundlink Flex 2nd gen vs W-King D8 Mini

Last updated: October 12, 2026

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. The W-King D8 Mini ranks #135, rated 2.6/5, at $49.99, $50 cheaper, a saving that is not big enough to make up the sound-quality gap.

Bose Soundlink Flex 2nd gen vs W-King D8 Mini

The Bose Soundlink Flex 2nd gen is the better-sounding, lighter choice. 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 W-King D8 Mini at 2.8 lbs (1.26 kg). 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.

The W-King D8 Mini is the longer-running pick. 30W output with switchable indoor/outdoor EQ modes. It is rated for 24 hours of battery against 12 for the Bose Soundlink Flex 2nd gen. It keeps a wired aux input, which the Bose Soundlink Flex 2nd gen lacks. It plays in stereo from a single unit, unlike the Bose Soundlink Flex 2nd gen. The catch: Recessed midrange, harsh treble.

Buy the Bose Soundlink Flex 2nd gen. It is rated higher for sound quality, and the $50 you would save on the W-King D8 Mini does not close the gap.

Want more options? Browse the full Portable Bluetooth rankings.

Specifications Side By Side

Bose Soundlink Flex 2nd gen W-King D8 Mini
Price$99.99$49.99
Ranked#37 of 175 in Medium Size Portable Bluetooth Speakers#135 of 175 in Medium Size Portable Bluetooth Speakers
AppYesNo
Battery Life12 hours (Manufacturer specified)24 hours (Manufacturer specified)
Built-in MicrophoneYesYes
EQYes (3 band)Yes (2 modes - Indoor/Outdoor)
IP RatingIP67IPX6
Party ModeYes (Bose Party mode)-
Power InputUSB-CUSB-C
StereoNoYes
OmnidirectionalNoNo
TWSYesNo
Weight1.3 lbs (586 g)2.8 lbs (1260 g)
BluetoothYesYes
Bluetooth Version5.35.0
Dimensions7.9” x 3.5” x 2” (201 x 90 x 52 mm)9.9” x 3.7” x 3.7” (251 x 94 x 94 mm)
Aux InputNoYes
Drivers60mm full-range driver with passive radiators2x 70mm woofers, 2x 30mm tweeters
Bluetooth CodecsSBC, AAC, aptX AdaptiveSBC (inferred; additional codecs unverified)
Digital Aux InputNoNo
StrapYes (built-in loop)-
Bass Extension (-10dB)-63Hz
Maximum SPL-100dB (measured by Alan Ross Reviews)
MicroSD Playback-Yes
Amplifier Power-30W

More top alternatives to Bose Soundlink Flex 2nd gen:

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.

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The Two Speakers In Full

Bose Soundlink Flex 2nd gen ranking card

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.

ReleasedSep 2024 (2 years ago)
AppYes
Aux InputNo
Battery Life12 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC, AAC, aptX Adaptive
Bluetooth Version5.3
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions7.9” x 3.5” x 2” (201 x 90 x 52 mm)
Drivers60mm full-range driver with passive radiators
EQYes (3 band)
IP RatingIP67
OmnidirectionalNo
Party ModeYes (Bose Party mode)
Power InputUSB-C
StereoNo
StrapYes (built-in loop)
TWSYes
Weight1.3 lbs (586 g)

W-King D8 Mini: $49.99 W-King $49.99 eBay

W-King D8 Mini ranking card

Pros: 30W output with switchable indoor/outdoor EQ modes. IPX6 rated with a 5000mAh battery. Measured bass extension of 63Hz (-10dB).

Cons: Recessed midrange, harsh treble. Bass doesn’t go as deep as others.

ReleasedFeb 2020 (6 years ago)
Amplifier Power30W
AppNo
Aux InputYes
Bass Extension (-10dB)63Hz
Battery Life24 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC (inferred; additional codecs unverified)
Bluetooth Version5.0
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions9.9” x 3.7” x 3.7” (251 x 94 x 94 mm)
Drivers2x 70mm woofers, 2x 30mm tweeters
EQYes (2 modes - Indoor/Outdoor)
IP RatingIPX6
Maximum SPL100dB (measured by Alan Ross Reviews)
MicroSD PlaybackYes
OmnidirectionalNo
Power InputUSB-C
StereoYes
TWSNo
Weight2.8 lbs (1260 g)