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  3. Crossky C30 T33 vs A3

QCY Crossky C30 T33 vs Sudio A3

What Crossky C30 T33 does better (2) and where A3 wins (1) — every spec side by side.

QCY Crossky C30 T33
QCY · 2025Crossky C30 T33
4.2Score
2 advantages≈ $30
Higher score
vs
Sudio A3
Sudio · 2025A3
4.0Score
1 advantage≈ $30
4.6Noise control & calls3.1
2.6Battery2.3
4.8Build & features6.2

Why is Crossky C30 T33 better than A3?

  1. Charging time2 h vs 3 h+50%
  2. Battery capacity32 mAh vs 25 mAh+28%

Why is A3 better than Crossky C30 T33?

  1. Driver size10.8 mm vs 12 mm+11%
Specifications

Side by side

Sudio A3Sudio A3≈ $304.0
Sound
FitOpen-earIn-ear
Ear cup designClosed-backClosed-back
Driver typeDynamicDynamic
Driver size10.8 mm12 mm
Number of drivers2—
Impedance—32 Ω
Sensitivity—105 dB
Adjustable equaliserYes—
Noise control
Active noise cancellingNoNo
Microphones4—
Noise reduction for callsYes—
Battery & charging
Battery life5 h5 h
Total with charging case25 h25 h
Battery capacity32 mAh25 mAh
Charging time2 h3 h
Connectivity
WirelessYesYes
Bluetooth version5.45.4
Bluetooth codecsSBCSBC
Hi-res codec (LDAC / aptX HD / LHDC)NoNo
aptXNoNo
LDACNoNo
Multipoint (two devices)YesYes
USB-C—Yes
Low-latency game modeYes—
Smart & streaming
Voice assistantGoogle Assistant, Siri—
Companion appYes—
Design & build
Weight—34 g
Earbud weight (each)5 g—
Protection ratingIPX4IPX4
Water resistance (IPx)IPx4IPx4
Features
Touch controlsYesYes
Hands-free callsYesYes
To compare: 0up to 4 models
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