Timekettle
Timekettle W4 Pro
1. Timekettle W4 Pro
Dedicated translator
Timekettle has built translation hardware for years, and the W4 Pro is its most complete earbud for people who translate often. It covers face-to-face chats, phone and video calls, and listening to a speaker, all through one app.
Key features
- Translation technology
- Cloud AI translation via Timekettle app; offline engine for some pairs
- Supported languages
- 40 languages / 93 accents online (manufacturer claim)
- Conversation modes
- Hand one earbud to the other person; call translation; listen mode
- Offline translation
- Limited set of downloadable pairs
- Smartphone
- Required — iOS or Android
- Subscription
- Check app for any paid add-ons in your region
- Battery
- Check listing
- Connectivity
- Bluetooth to phone
Pros
- Broadest set of translation modes in one product
- Works with phone and video calls, not just in-person chats
- Mature companion app from a translation-focused brand
- Some offline support for travel days
Cons
- Premium price for occasional users
- Sharing an earbud with strangers isn't for everyone
- Offline covers far fewer languages than online
Best for: Frequent travelers and professionals who translate several times a week.
Watch out for: Offline pairs are limited; most features need a phone and data connection.
Verdict: If you want one device that handles most real translation scenarios, the W4 Pro is the most rounded choice here. Casual travelers may find it more than they need.

