Compare up to 10 devices across categories. Keep the purpose and the source beside the numbers.
Lowest recorded store prices take priority over announced or launch prices, within the selected source market. Currencies use the dated EUR reference rates. Deposits and recurring charges are excluded from price order; missing prices stay last. Original price records remain visible.
In-person, call and media interpretation
Keep in mind The $299 hardware option requires a subscription for advanced call/media features after a trial; $379 is the one-time-purchase version.
Conversation interpretation, music and calls
Keep in mind Some enhanced media functions are iOS-specific in the inspected page. Translation requires the companion app.
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| Audio & hearablesAdd a model |  |  |
|---|---|---|
| Prices · all markets | $299 USD≈ €267 EURECB 2026-10-12Global · Store price · In stock in official structured offer 2 offer records & sources$379 USD≈ €339 EURECB 2026-10-12 Global · Store price In stock in official structured offerTimekettle W4 Plus one-time-purchase edition Original source market label: International store / USD.Check merchant offer ↗Price source ↗ Checked 2026-10-12$299 USD≈ €267 EURECB 2026-10-12 Global · Store price In stock in official structured offerTimekettle W4 Plus subscription edition Advanced media/call/AI features need subscription after seven-day trial. Original source market label: International store / USD.Check merchant offer ↗Price source ↗ Checked 2026-10-12 | $279.20 USD≈ €250 EURECB 2026-10-12Global · Store price · In stock in official structured offer 1 offer records & sources$279.20 USD≈ €250 EURECB 2026-10-12 Global · Store price In stock in official structured offerTimekettle W4 Midnight Blue Sale price, not the regular list price. Original source market label: International store / USD.Check merchant offer ↗Price source ↗ Checked 2026-10-12 |
| Designed for | In-person, call and media interpretation ↗ | Conversation interpretation, music and calls ↗ |
| Battery / power | Three hours continuous; 18 hours with case ↗ | Four hours active; 20 hours with case ↗ |
| Software | Not verified | Babel OS 2.0 ↗ |
| Form factor | Earbuds with charging case ↗ | Semi-in-ear earbuds ↗ |
| Online Languages | 52 languages, 106 accents ↗ | 52 languages, 106 accents ↗ |
| Offline Languages | 13 downloadable packs ↗ | Not applicable to this category |
| Voice Pickup | Bone-conduction noise cancellation ↗ | One bone-conduction sensor and two microphones ↗ |
| App Required | Timekettle app ↗ | Timekettle app ↗ |
| Commercial Plans | Subscription or one-time-purchase version ↗ | Not applicable to this category |
| Offline Modes | Not applicable to this category | One-on-one and Listen & Play ↗ |
| Availability | The $299 hardware option requires a subscription for advanced call/media features after a trial; $379 is the one-time-purchase version. | Some enhanced media functions are iOS-specific in the inspected page. Translation requires the companion app. |
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| Editorial pick & release | No editorial ranking recorded | No editorial ranking recorded |
| Evidence | Manufacturer source Checked 2026-10-12 | Manufacturer source Checked 2026-10-12 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.
