Yinyoo ZSN Pro X
Score: 76/100
Soundcore A20i
Score: 72/100Rankings
The KZ ZSN Pro X is a budget hybrid IEM with a 10 mm dynamic driver and a balanced armature, offering solid bass and clear mids. Its metal construction and detachable cable add durability, but the stock cable's durability and lack of a microphone limit its convenience. Ideal for gamers and audiophiles seeking value at sub-$50.
The Soundcore A20i offers impressive battery life, fast charging and a gaming mode at a budget price, but it lacks ANC and premium build quality. It is best suited for commuters, fitness users and gamers who value long playtime over high-end features.
| Attribute | | |
|---|---|---|
— | 9 hoursbest | |
— | 10 mbest | |
10 mmbest | 6 mm | |
20 Hzbest | 20 Hzbest | |
20,000 Hzbest | 20,000 Hzbest | |
104 dBbest | 98 dB | |
25 Ω | 32 Ωbest | |
| ↓ lower better | 49.9 g | 40.8 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Audio(4) | ||
Driver Size (mm) | 10 mm | 6 mm |
Sensitivity (dB) | 104 dB | 98 dB |
Impedance (Ω) | 25 Ω | 32 Ω |
Microphone | false | true |
Warranty(1) | ||
Warranty Period (months) | 12 months | 18 months |
Build & Design(2) | ||
Weight (g) | 49.9 g | 40.8 g |
Ear Tip Sizes | 3 silicone eartips (S/M/L) | Small silicone ear tips |
Battery & Power(1) | ||
Charging Port Type | 3.5mm TRS | USB-C |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the ZSN Pro for delivering high-end sound performance at a budget price, highlighting its deep, well-controlled bass, warm mids, and non-fatiguating treble, while noting cable discoloration and stiffness as drawbacks.
Everyday users overwhelmingly appreciate the sound signature-especially the clean bass and clear mids-along with the comfortable fit and premium look, though many complain about the cable's discoloration and stiffness.
Professional reviewers view the A20i as a solid budget option that delivers strong bass, good treble, and impressive battery life, especially thanks to its 22 EQ presets and gaming mode. However, they point out fit issues due to small ear tips, the lack of custom EQ, and a flimsy charging case.
Everyday users love the long battery life, clear calls, and the ability to tweak sound via the app, but many complain about the tiny, rough ear tips, a loose fit, and occasional firmware hiccups. The case's cheap feel and lack of volume control are also frequent gripes.
“The bass is good and clean, the mids are clear, sound balance is very nice.”
“Cable turned brown after a few weeks.”
“big sound at a small price”
