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  3. Air Pro 4i vs Comfo Flex

EarFun Air Pro 4i vs Edifier Comfo Flex

What Air Pro 4i does better (0) and where Comfo Flex wins (1) — every spec side by side.

EarFun Air Pro 4i
EarFun · 2025Air Pro 4i
8.8Score
0 advantages≈ $55
Higher score
vs
Edifier Comfo Flex
Edifier · 2025Comfo Flex
1 advantage
7.9Battery8.5

Why is Air Pro 4i better than Comfo Flex?

Air Pro 4i has no measurable advantages in this pair.

Why is Comfo Flex better than Air Pro 4i?

  1. Battery life9.5 h vs 10 h+5%
Specifications

Side by side

Sound
FitIn-earOpen-ear
Driver typeDynamic—
Driver size11 mm—
Lowest frequency—20 Hz
Highest frequency—40,000 Hz
Impedance16 Ω—
Sensitivity98 dB90 dB
Spatial / 3D audioYes—
Hi-Res AudioYes—
Adjustable equaliserYes—
Noise control
Active noise cancellingYes—
Transparency / ambient modeYes—
Battery & charging
Battery life9.5 h10 h
Total with charging case—40 h
Battery capacity—70 mAh
Charging time1 h—
Wireless charging (case)Yes—
Connectivity
WirelessYesYes
Bluetooth version5.45.4
Bluetooth codecsLDAC, AAC, SBCLDAC, AAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)YesYes
aptXNoNo
LDACYesYes
Multipoint (two devices)Yes—
USB-CYesYes
Design & build
Weight51 g—
Protection ratingIP55IP55
Water resistance (IPx)IPx5IPx5
Dust protection (IP)55
Features
Touch controlsYes—
Hands-free callsYes—
To compare: 0up to 4 models
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