Wireless earbuds are often compared by price and brand, but four specifications actually govern whether they suit you.
Codec support decides audio path
SBC is the universal baseline. AAC is common on Apple devices, while aptX, LDAC and LC3 support varies by both earbuds and phone. If your phone does not support the codec, the earbuds fall back to a lower one.
Latency is separate from audio quality
Watching video or gaming exposes delay between the picture and the sound. Low-latency modes help, but they usually reduce connection stability or audio quality. If you game, check for an explicitly stated gaming or low-latency mode.
Battery claims assume conditions
Quoted playtime is typically measured at moderate volume with noise cancelling off. Turning on active noise cancelling commonly reduces it substantially. Look for separate figures rather than one headline number.
Fit and passive isolation
Silicone tip size affects both comfort and how much external noise is blocked passively. In-ear designs isolate more than open designs, but some users find them uncomfortable over long sessions.
Water resistance ratings
Resistance ratings describe protection against splashes, not swimming. Sweat is fine for most rated earbuds; submerging is not.
Charging case capacity
Total playtime includes the case. A large case helps for travel but adds bulk, and battery cells degrade over time, so the case capacity is a temporary advantage.
What this guide does not list
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