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  3. K1 vs HiTune S3 WS209

EarFun K1 vs Ugreen HiTune S3 WS209

What K1 does better (1) and where HiTune S3 WS209 wins (1) — every spec side by side.

EarFun K1
EarFun · 2025K1
1 advantage≈ $15
vs
Ugreen HiTune S3 WS209
Ugreen · 2025HiTune S3 WS209
5.1Score
1 advantage≈ $19
Higher score
3.8Noise control & calls9.2

Why is K1 better than HiTune S3 WS209?

  1. Driver size40 mm vs 12 mm3.3×

Why is HiTune S3 WS209 better than K1?

  1. Active noise cancellingNo · K1: Yes
Specifications

Side by side

EarFun K1EarFun K1≈ $15
Sound
FitOver-earOpen-ear
Ear cup designClosed-backClosed-back
Driver typeDynamicDynamic
Driver size40 mm12 mm
Number of drivers1—
Impedance32 Ω—
Sensitivity94 dB—
Noise control
Active noise cancellingNoYes
Battery & charging
Battery life—7 h
Charging time—3 h
Quick charge (claimed)—15 min → 2 h
Fast charging support—Yes
Connectivity
WirelessNoYes
Bluetooth version—5.4
Bluetooth codecs—AAC
Hi-res codec (LDAC / aptX HD / LHDC)—No
aptX—No
LDAC—No
USB-C—Yes
3.5 mm jack / AUXYes—
Low-latency game mode—Yes
Design & build
Protection rating—IPX5
Water resistance (IPx)—IPx5
Features
Touch controls—Yes
Hands-free callsYesYes
To compare: 0up to 4 models
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