Bose Soundlink Flex 2nd gen vs Skullcandy Terrain XL

Last updated: September 30, 2026

Short answer: the Bose Soundlink Flex 2nd gen. It ranks #35 of 150 medium speakers by sound quality, rated 3.8/5, at $159. The Skullcandy Terrain XL ranks #140, rated 2.1/5, at $79.99, $79.01 cheaper, which does not close the gap in sound quality.

Bose Soundlink Flex 2nd gen vs Skullcandy Terrain XL

What the Bose Soundlink Flex 2nd gen does well: A very portable 586g, IP67-rated speaker with a clear, well-balanced midrange that keeps voices and instruments intelligible. The tradeoff: 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 case for the Skullcandy Terrain XL: The loudest and longest-running of the Terrain line at 95dB and 18 hours, and the only one with a built-in microphone. Watch for: Shares the Terrain line’s tuning: no bass, very rolled off treble, and distortion in the treble.

Buy the Bose Soundlink Flex 2nd gen. It is rated higher for sound quality, and the $79.01 you would save on the Skullcandy Terrain XL does not close the gap.

Battery life favors the Skullcandy Terrain XL: rated for 18 hours against 12 hours for the Bose Soundlink Flex 2nd gen.

Looking for alternatives? See the complete Portable Bluetooth rankings.

Specifications Side By Side

Bose Soundlink Flex 2nd gen Skullcandy Terrain XL
Price$159.00$79.99
Ranked#35 of 150 in Medium Size Portable Bluetooth Speakers#140 of 150 in Medium Size Portable Bluetooth Speakers
AppYesYes
Battery Life12 hours (Manufacturer specified)18 hours (Manufacturer specified)
Built-in MicrophoneYesYes
EQYes (3 band)No
IP RatingIP67IPX7
Party ModeYes (Bose Party mode)Yes (SKDY Multi-Link, up to 99 speakers)
Power InputUSB-CUSB-C
StereoNoNo
OmnidirectionalNoNo
TWSYesYes
Weight1.3 lbs (586 g)1.4 lbs (635 g)
BluetoothYesYes
Bluetooth Version5.35.3
Dimensions7.9” x 3.5” x 2” (201 x 90 x 52 mm)7.5” x 3.5” x 3.5” (190.5 x 88.9 x 88.9 mm)
Aux InputNoNo
Drivers60mm full-range driver with passive radiators2x 48mm drivers + passive radiators
Bluetooth CodecsSBC, AAC, aptX AdaptiveSBC
Digital Aux InputNoNo
StrapYes (built-in loop)Yes (wrist strap)
Maximum SPL-95dB SPL (Manufacturer specified)
Amplifier Power-2 x 20W

How Bose Soundlink Flex 2nd gen compares with other leading options:

Prices on this page were last checked September 30, 2026 at 2:57 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).

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.

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)

Skullcandy Terrain XL: $79.99 Amazon eBay

Skullcandy Terrain XL ranking card

Pros: The loudest and longest-running of the Terrain line at 95dB and 18 hours, and the only one with a built-in microphone. IPX7 rated with a nylon wrist wrap. Multi-Link pairs it with other Skullcandy speakers.

Cons: Shares the Terrain line’s tuning: no bass, very rolled off treble, and distortion in the treble. The extra size buys volume and runtime, not better sound.

Amplifier Power2 x 20W
AppYes
Aux InputNo
Battery Life18 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC
Bluetooth Version5.3
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions7.5” x 3.5” x 3.5” (190.5 x 88.9 x 88.9 mm)
Drivers2x 48mm drivers + passive radiators
EQNo
IP RatingIPX7
Maximum SPL95dB SPL (Manufacturer specified)
OmnidirectionalNo
Party ModeYes (SKDY Multi-Link, up to 99 speakers)
Power InputUSB-C
StereoNo
StrapYes (wrist strap)
TWSYes
Weight1.4 lbs (635 g)