True Wireless
KZ S2
58Average
$30
Full review dataKZ S2 vs KZ Xtra: which should you buy?
On aggregated review scores the KZ Xtra comes out ahead with an HearWiki score of 78. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: KZ Xtra - Great overall at around $58.
True Wireless
KZ Xtra
78Great
$58
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KZ S2
Sound5.5
Battery3.0
Calls4.8
Value5.0
KZ Xtra
Sound8.5
Noise cancelling6.5
Battery5.5
Calls6.0
Value8.0
Specifications
| Spec | KZ S2 | KZ Xtra |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $30 | $58 |
| HearWiki score | 58 / 100 · Average | 78 / 100 · Great |
| Released | 2020 | 2024 |
| Audio | ||
| Driver | hybrid | dynamic |
| Driver size | 7 mm | 10 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 20Hz-40000Hz | 20Hz-20kHz |
| Impedance | 24 Ω | - |
| Sensitivity | 98 dB/mW | 120 dB/mW |
| Wireless | ||
| Bluetooth | 5.0 | 5.4 |
| Bluetooth version | 5.0 | 5.4 |
| Codecs | SBC, AAC | SBC, AAC, aptX Adaptive |
| Multipoint pairing | No | No |
| Latency | - | 55 ms |
| Wireless range | 20 m | 15 m |
| Battery | ||
| Battery life | 3 h | - |
| Battery incl. case | 18 h | 32 h |
| Full charge time | 120 min | 120 min |
| Wireless charging | No | No |
| Features | ||
| Active noise cancelling | No | Yes |
| ANC type | - | hybrid |
| Transparency mode | - | Yes |
| Companion app | - | No |
| Custom EQ | - | No |
| Wear detection | - | No |
| Controls | - | buttons |
| Design | ||
| Weight | - | 65 g |
| Water resistance | IPX5 | none |
| Foldable | - | No |
| Detachable cable | - | No |
| USB-C | Yes | Yes |
| Calls | ||
| Microphones | - | 3 |
| Call noise reduction | - | CVC |
What reviewers said
KZ S2
The KZ S2 are budget true wireless earbuds that offer a hybrid dual-driver setup, Bluetooth 5.0 with multipoint, and a lightweight, comfortable fit. While they deliver punchy bass and clear detail for the price, their short single-charge battery life, occasional treble harshness, and inconsistent wireless performance keep them from being a standout in their class.
- Pro:Very affordable
- Pro:Comfortable and lightweight fit
- Pro:Strong bass and clear detail
- Con:Short battery life per charge
- Con:Treble can be harsh or splashy
- Con:Connection stability issues reported
KZ Xtra
The KZ Xtra offers a compelling mix of strong active noise cancellation, reliable multipoint connectivity, and a dynamic, engaging sound signature that punches well above its price point. While its tuning leans toward an audiophile-friendly character with impressive midrange clarity and impact, it does come with some practical quirks like sensitive physical buttons and occasionally inconsistent media playback on certain Android devices. Overall, it's a solid budget-friendly option for those prioritizing sound quality and versatile features.
- Pro:Excellent sound quality for the price
- Pro:Effective hybrid ANC and transparency mode
- Pro:Fast pairing and stable Bluetooth 5.4 connection
- Con:Bass response can feel slightly sluggish
- Con:Treble lacks some airiness
- Con:Physical buttons may be too sensitive
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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