Timekettle
Timekettle W4 Pro
Product photo: use manufacturer image
1. Timekettle W4 Pro
Dedicated translator · Price tier $$$ · Editorial score 9.1/10
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.

