EarFun Free 2S
Score: 45/100
Sony WF-C510
Score: 84/100Rankings
The Sony WF-C510 offers solid audio, ANC and multipoint connectivity in a compact true-wireless form factor, with 22 h total battery life and fast charging. It targets budget-conscious users who value Sony's app ecosystem over premium build quality.
The EarFun Free 2S delivers solid sound, long battery life and robust waterproofing at a budget price, but lacks ANC and suffers from occasional connectivity quirks.
| Attribute | | |
|---|---|---|
7 hours | 22 hoursbest | |
15 mbest | — | |
7 mmbest | 6.5 mm | |
20 Hzbest | 20 Hzbest | |
20,000 Hzbest | 20,000 Hzbest | |
40 mAhbest | 10.5 mAh | |
100 dBbest | 98 dB | |
— | 16 Ωbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Audio(4) | ||
Driver Size (mm) | 7 mm | 6.5 mm |
Sensitivity (dB) | 100 dB | 98 dB |
Active Noise Cancellation | false | true |
Supported Codecs | aptX, AAC, SBC | SBC, AAC, LDAC |
Connectivity(1) | ||
Bluetooth Version | 5.2 | 5.3 |
Build & Design(3) | ||
Weight (g) | 48 g | 4.5 g |
IP Rating | IPX7 | IPX4 |
Ear Tip Sizes | Multiple sizes (S, M, L) | S,M,L |
Battery & Power(2) | ||
Battery Life (hours) | 7 hours | 22 hours |
Battery Capacity (mAh) | 40 mAh | 10.5 mAh |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the Free 2S for delivering studio-neutral sound, impressive bass, and a feature set rarely seen at its price point, while noting the absence of ANC as the only major drawback.
Everyday users consistently commend the earbuds for their high-fidelity sound, long battery endurance, clear call quality and waterproofing, but many express frustration over missing ANC, occasional pairing hiccups and overly sensitive touch controls.
Professional reviewers praise the balanced sound, EQ app and multipoint Bluetooth, but note the lack of ANC, high-resolution codecs and a premium feel.
Users love the comfortable fit and easy controls, but complain about the plastic construction, average battery life and missing charging cable.
“Sound quality rivals $100+ headphones”
“Battery lasts days”
“Calls are crystal clear”
