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  3. SoundLink Flex (2nd Gen) vs CMF Speaker M

Bose SoundLink Flex (2nd Gen) vs Nothing CMF Speaker M

What SoundLink Flex (2nd Gen) does better (1) and where CMF Speaker M wins (5) — every spec side by side.

Bose SoundLink Flex (2nd Gen)
6.5Score
1 advantage≈ $110
vs
Nothing CMF Speaker M
Nothing · 2026CMF Speaker M
8.1Score
5 advantages≈ $110
Higher score
4.4Battery6.8
7.8Build & features9.4
Dimensions

Size comparison

SoundLink Flex (2nd Gen)CMF Speaker M
201.4 × 90452.385 × 22054
SoundLink Flex (2nd Gen)CMF Speaker MDifference
Height904 mm220 mm+684 mm
Width201.4 mm85 mm+116.4 mm
Depth52.3 mm54 mm−1.7 mm
Weight590 g602 g−12 g

Drawn to the same scale from the official dimensions (front and side).

Why is SoundLink Flex (2nd Gen) better than CMF Speaker M?

  1. StereoYes · CMF Speaker M: No

Why is CMF Speaker M better than SoundLink Flex (2nd Gen)?

  1. Battery life12 h vs 18 h+50%
  2. Water resistance (IPx)IPx7 vs IPx8+14%
  3. Bluetooth version5.3 vs 6+13%
  4. Battery capacity3,200 mAh vs 4,900 mAh+53%
  5. Charging time4 h vs 3 h+33%
Specifications

Side by side

Sound
Output power—35 W
Speaker channels—1.0
Channel count—1
Lowest frequency—60 Hz
Highest frequency—20,000 Hz
Adjustable equaliser—Yes
StereoYesNo
Battery & charging
Battery life12 h18 h
Battery capacity3,200 mAh4,900 mAh
Charging time4 h3 h
Quick charge (claimed)—10 min → 1 h
Fast charging support—Yes
Mains poweredNoNo
Battery powered (portable)YesYes
Connectivity
WirelessYesYes
Bluetooth version5.36
Bluetooth codecsSBCLC3, AAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)NoNo
aptXNoNo
LDACNoNo
Multipoint (two devices)—Yes
LE Audio—Yes
Auracast—Yes
NFC pairing—Yes
USB-CYesYes
USB audio—Yes
Smart & streaming
Companion appYesYes
Design & build
Weight590 g602 g
Width201 mm85 mm
Height904 mm220 mm
Depth52 mm54 mm
Protection ratingIP67IP68
Water resistance (IPx)IPx7IPx8
Dust protection (IP)66
Features
Hands-free callsYes—
Party / stereo pairingYesYes
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