Short answer: the Anker Soundcore P20i, though neither ranks well in its class. Both are rated 1.0/5 for sound quality (#1247 and #1290 of 1291 in-ear headphones), and the Anker Soundcore P20i costs $22.99 against $53.99 for the Audio-Technica ATH-CKS5TW, with sound quality a draw, the lower price decides it. Both are rated below 3.0/5 among the 1291 in-ear headphones, so if sound quality matters, consider the Intuaura Reference 2019 instead, ranked #7 at $34.99.
The case for the Anker Soundcore P20i: A very low cost way into true wireless listening, with a claimed 10 hours per charge and 30 with the case. The catch: There is no active noise cancelling.
Why pick the Audio-Technica ATH-CKS5TW: It uses 1 x 10mm dynamic with an easy 16 ohm load. The catch: A tonal tilt of -3.01 makes it sound dark, with bass well ahead of the treble.
Buy the Anker Soundcore P20i. Both are rated the same for sound quality, and it costs $31 less than the Audio-Technica ATH-CKS5TW.
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A very low cost way into true wireless listening, with a claimed 10 hours per charge and 30 with the case.
Amazon $22.99 eBay
It uses 1 x 10mm dynamic with an easy 16 ohm load.
Amazon $53.99 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Anker Soundcore P20i | Audio-Technica ATH-CKS5TW | |
|---|---|---|
| Price | $22.99 | $53.99 |
| Ranked | #1247 of 1291 in In-Ear Headphones | #1290 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | - |
| Harman Preference Score | 35 (median of 1 squig.link measurements, calibrated to AutoEQ) | 9 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 4.56 dB standard deviation | 6.22 dB standard deviation |
| Tonal Tilt | -2.07 (negative is warmer, positive brighter) | -3.01 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+3.1 dB at 30 Hz) | - |
| Connection | True wireless | True wireless |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Impedance | 16 ohms | 16 ohms |
| Weight | 0 lbs (4.3 g) per earbud | 0 lbs (8 g) per earbud |
| Active Noise Cancelling | No | - |
| Battery Life | 10 hours (30 with case, Manufacturer specified) | - |
| Bluetooth Version | 5.3 | - |
| Bluetooth Codecs | SBC, AAC | - |
| Built-in Microphone | Yes | - |
| IP Rating | IPX5 | - |
| Sensitivity | - | 110 dB/mW |
| Frequency Response | - | 5Hz - 40kHz |
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