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.
Interpretation, calls and media translation
Keep in mind Offline language packs and modes have conditions; media translation needs internet. Accuracy percentages are manufacturer claims and not independent testing.
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 | $449 USD≈ €402 EURECB 2026-10-12Global · Store price · In stock in official structured offer 1 offer records & sources$449 USD≈ €402 EURECB 2026-10-12 Global · Store price In stock in official structured offerTimekettle W4 Pro 2026, grey 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 | Interpretation, calls and media translation ↗ | Conversation interpretation, music and calls ↗ |
| Battery / power | Up to six hours continuous translation ↗ | Four hours active; 20 hours with case ↗ |
| Software | Not verified | Babel OS 2.0 ↗ |
| Form factor | Open-ear earbuds ↗ | Semi-in-ear earbuds ↗ |
| Online Languages | 52 languages, 106 accents ↗ | 52 languages, 106 accents ↗ |
| Offline Languages | 13 language pairs ↗ | Not applicable to this category |
| Fast Charging | Ten minutes for one hour translation ↗ | Not applicable to this category |
| Translation Modes | One-on-one, Listen & Play and online media translation ↗ | Not applicable to this category |
| App Required | Timekettle smartphone app ↗ | Timekettle app ↗ |
| Voice Pickup | Not applicable to this category | One bone-conduction sensor and two microphones ↗ |
| Offline Modes | Not applicable to this category | One-on-one and Listen & Play ↗ |
| Availability | Offline language packs and modes have conditions; media translation needs internet. Accuracy percentages are manufacturer claims and not independent testing. | 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.
